{"id":8285,"date":"2026-09-24T01:20:13","date_gmt":"2026-09-24T01:20:13","guid":{"rendered":"https:\/\/korea-transmission.com\/?post_type=product&p=8285"},"modified":"2026-09-24T08:20:30","modified_gmt":"2026-09-24T08:20:30","slug":"cmn190-r3-fertilizer-spreader-gearbox-ratio-11-cast-iron-right-angle-72hp-540rpm-pto","status":"publish","type":"product","link":"https:\/\/korea-transmission.com\/it\/prodotto\/cmn190-r3-fertilizer-spreader-gearbox-ratio-11-cast-iron-right-angle-72hp-540rpm-pto\/","title":{"rendered":"CMN190-R3 Spandiconcime con riduttore, rapporto 1:1, ghisa ad angolo retto, 72 CV, 540 giri\/minuto, presa di forza"},"content":{"rendered":"

The CMN190-R3 is a cast iron right-angle fertilizer spreader gearbox rated at 72HP and 540RPM PTO input, purpose-engineered for heavy-duty agricultural fertilizing and seeding equipment. Operating at a 1:1 ratio, it accepts 53kW of input power and delivers 937 N\u00b7m of output torque at a matched 540RPM output speed, making it one of the most torque-dense units in its class. This agricultural gearbox connects directly to the tractor PTO via a standard drive shaft, channeling power to spinner discs, auger drives, or twin-rotor distribution mechanisms with zero speed loss across the right-angle turn. The hardened alloy steel housing and precision-cut helical bevel gears sustain continuous operation under the corrosive, vibration-heavy conditions typical of large-scale fertilizer application without accelerated wear or housing distortion.<\/p>\n

Beyond fertilizer spreading, the CMN190-R3 is a versatile power transmission gearbox that pairs with linked auger assemblies for vertical double-auger, vertical four-auger, horizontal three-auger, and horizontal four-auger configurations, adapting to the material density and flow requirements of each layout. Its modular input\/output shaft interfaces allow seamless integration with grain conveyors, feed distribution lines, lime spreaders, and compost turners. All mounting dimensions comply with standard agricultural machinery bolt patterns, and the gearbox is equally suited for OEM fitment on new machines or as a direct-fit upgrade on existing equipment. CMN Transmission ships factory-direct with flexible OEM and ODM customization on shaft diameters, flange patterns, and gear ratios, backed by a full one-year quality warranty and global after-sales support across more than 60 export destinations.<\/p>\n

\"CMN190-R3<\/p>\n

Parametri tecnici<\/h2>\n

\"CMN190-R3<\/p>\n

Alberi<\/h2>\n

\"CMN190-R3<\/h2>\n\n\n\n\n\n\n
Use<\/td>\nRapporto<\/td>\nInput<\/td>\nOutput<\/td>\n<\/tr>\n
r.p.m<\/span><\/td>\nHp<\/span><\/td>\nKw<\/span><\/td>\nNm<\/span><\/td>\nr.p.m<\/span><\/td>\nNm<\/span><\/td>\n<\/tr>\n
Speed Reducer<\/td>\n1:1<\/td>\n540<\/td>\n72<\/span><\/td>\n53<\/span><\/td>\n937<\/span><\/td>\n540<\/span><\/td>\n937<\/span><\/td>\n<\/tr>\n
Remark: If you have any special requirements, feel free to let me know; we also accept custom orders.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Key Features of the CMN190-R3 Fertilizer Spreader Gearbox<\/h2>\n

1. Robust Construction for Demanding Environments
\nThe CMN190-R3 fertilizer gearbox is housed in a thick-walled, high-grade cast iron body, paired with precision-cut hardened alloy steel bevel gears. This combination withstands the sustained vibration, chemical exposure, and mechanical shock that come with high-throughput spreading operations. Unlike aluminum-housed units that distort under thermal cycling, the cast iron structure maintains bearing seat tolerances throughout the working life of the gearbox, keeping gear mesh geometry correct and noise levels low even after thousands of operating hours.<\/p>\n

2. Modular Design for Easy Customization
\nThe gearbox supports modular assembly, allowing operators to configure input\/output shaft sizes, the standard 1:1 fertilizer spreader gearbox ratio, and mounting orientations to match specific auger or disc-spinner layouts. Optional flange adapters and coupling kits enable direct connection to both standard and custom auger drives across vertical double-auger, four-auger, horizontal three-auger, and four-auger configurations. This adaptability makes the CMN190-R3 equally useful for retrofitting older spreader frames or building new OEM production lines from the ground up.<\/p>\n

3. Smart Compatibility with Precision Systems
\nEquipped with optional sensor-ready ports, the CMN190-R3 supports real-time performance monitoring and predictive maintenance scheduling. The unit integrates cleanly with variable-speed PTO controllers and automated field management platforms, making it a practical choice for precision agriculture setups where application rates must be dynamically adjusted mid-pass. Whether used in a GPS-guided variable-rate spreader or a manually controlled spinner unit, the gearbox provides stable, repeatable power delivery that modern application-control systems can rely on.<\/p>\n

4. Direct PTO Power Transmission with Zero Loss
\nThe right-angle bevel gear stage redirects tractor PTO input through a clean 90-degree turn while maintaining the full 72HP \/ 53kW power rating with minimal transmission loss. At 540RPM input, the 1:1 ratio passes through 937 N\u00b7m of torque to the output shaft without any reduction in rotational speed. This direct power path avoids the heating and efficiency drop common in multi-stage gearboxes, keeping operating temperatures within safe limits even during extended spreading runs on large fields.<\/p>\n

5. Factory-Direct Pricing with Full OEM\/ODM Support
\nCMN Transmission sells directly from the production facility, cutting out distributor margins so buyers receive competitively priced fertilizer spreader gearboxes for sale without sacrificing specification quality. The engineering team accepts full OEM drawings or works with customers on ODM development, covering shaft geometry, oil port placement, external finishing, and identification markings. This direct factory relationship shortens lead times, allows tighter quality control, and simplifies post-sale technical coordination for global importers and agricultural OEMs.<\/p>\n

6. CE & ISO 9001 Certified Quality Assurance
\nEvery CMN190-R3 unit is manufactured within a CE and ISO 9001 certified management framework, covering incoming material inspection, in-process dimensional checks, gear-noise testing, oil-seal leak testing, and final run-in verification before shipment. This certification is especially important for agricultural gearbox for fertilizer spreader applications in the European Union and other markets with machinery directive requirements. The documentation package includes test records, material certifications, and conformity declarations, simplifying customs clearance and third-party equipment certification for OEM customers.<\/p>\n

7. Multi-Auger Drive Compatibility
\nThis agricultural gearbox transmits power through the drive shaft to linked auger assemblies in a range of configurations: vertical double augers, vertical four augers, horizontal three augers, and horizontal four augers. Each linked gearbox can be independently rated for its section of the drive train, giving engineers the flexibility to match torque distribution precisely to the material resistance and conveying distance of each auger run. This scalable approach makes the CMN190-R3 a natural fit for large-scale commercial spreaders, silo discharge systems, and multi-head blending equipment.<\/p>\n

\"CMN190-R3<\/p>\n

Principio operativo<\/h2>\n

The CMN190-R3 fertilizer spreader gearbox is a sealed system of precision bevel gears, hardened alloy shafts, and preloaded bearings designed to translate rotational power from the tractor’s 540RPM PTO output into the working mechanisms of a spreader implement. At its core, it acts as the central distribution point for all mechanical energy reaching the machine. Without a properly sized and rated agricultural gearbox positioned at this junction, no amount of tractor horsepower reaches the spinning discs, floor conveyors, or beater shafts in a usable form.<\/p>\n

Power enters the gearbox through the input shaft, which is splined to match the tractor PTO at 1-3\/8″ or compatible drive shaft dimensions. Inside the housing, the input shaft engages a matched set of precision-ground bevel gears. At the CMN190-R3’s 1:1 fertilizer spreader gearbox ratio, the rotational input speed is maintained exactly through the 90-degree right-angle turn, transferring the full 53kW (72HP) and delivering 937 N\u00b7m of torque to the output shaft. This right-angle geometry allows the spreader to be mounted with the PTO running longitudinally along the tractor center line while the spreading mechanism runs laterally, which is the standard layout for centrifugal disc and twin-spinner spreaders.<\/p>\n

In spreading operations driven by organic material or bulk granules, two physical systems must stay synchronized: the floor conveyor or apron chain, which moves material from the hopper toward the rear of the machine at a deliberately slow pace, and the distribution spinners or beaters, which must turn at high velocity to break up clumps and project material outward with enough force to achieve the required spread width. One output shaft of the CMN190-R3 drives the fast-turning distribution mechanism, while a linked secondary gearbox or direct chain drive off the same power path controls apron chain speed. If these two systems fall out of synchronization because of gearbox wear, oil starvation, or incorrect oil viscosity, material builds up faster than the beaters can process it, and the machine jams under load. This is why the fertilizer gearbox is not a passive component but an active coordinator of the entire material flow through the machine.<\/p>\n

When used in linked multi-auger configurations, the CMN190-R3 serves as the primary power input station, with additional gearbox units chained in series along the auger line. Each linked unit receives its input from the shaft end of the preceding unit, dividing the load progressively. This arrangement preserves torque distribution accuracy across all auger sections without overloading any single shaft or gear mesh point. The cumulative reliability of such a drive train depends entirely on the dimensional consistency and gear quality of each individual gearbox, which is why CE- and ISO 9001-certified production management is directly relevant to system-level performance, not just single-unit durability.<\/p>\n

\"CMN190-R3<\/p>\n

Ambiti di applicazione<\/h2>\n
\n

Agricultural Auger Conveyor Systems<\/h3>\n

Integrated with tractor PTO systems or standalone motors, the gearbox drives horizontal and inclined augers that transfer grain, fertilizer, and pelletized feed between silos, hoppers, and spreader hoppers. Customizable coupling interfaces accommodate different auger shaft diameters, and the robust housing tolerates the dust, humidity, and temperature swings common in grain-processing environments. The 937 N\u00b7m output handles high-density pellets and granular material without stalling under full hopper load.<\/p>\n<\/div>\n

\n

Centrifugal Disc and Twin-Spinner Spreaders<\/h3>\n

For fertilizer distributor gearbox applications on twin-disc centrifugal spreaders, the CMN190-R3’s right-angle output shaft connects directly to the disc drive train. At 540RPM, the spinning discs achieve the tip-speed necessary for 12 to 36-metre spread widths on granular fertilizers, lime, and blended mineral compounds. The consistent torque output prevents disc speed fluctuation during partial hopper loads, keeping distribution patterns uniform across the width of each pass.<\/p>\n<\/div>\n

\n

Organic and Manure Spreader Drives<\/h3>\n

In horizontal beater-type manure spreaders, the gearbox coordinates both the apron chain that delivers material to the rear of the box and the high-speed beater shafts that shred and project the material. The heavy-duty cast construction withstands the shock loading generated when dense, partially composted material contacts the beaters at full speed, a scenario that destroys lighter aluminum-housed units in a single season of intensive use.<\/p>\n<\/div>\n

\n

Feed and Fertilizer Production Lines<\/h3>\n

In feed mill dosing and fertilizer blending plants, the CMN190-R3 drives metering augers within weighing, dosing, and packaging systems. Precision gear engagement delivers accurate material flow rates during blending sequences, supporting consistent batch-to-batch product quality. Optional sensor integration enables synchronization with crushers, dryers, and bagging units in fully automated production lines, reducing manual intervention and improving throughput consistency.<\/p>\n<\/div>\n

\n

Crop Farming and Seeder Drives<\/h3>\n

For uniform application of granular fertilizers, trace elements, and pre-emergence herbicides across row-crop fields, the gearbox provides the stable rotational input that metering wheels and coulter assemblies require. Consistent output speed across varying ground conditions prevents over- or under-application, which is critical for maximizing crop yield response and meeting nutrient management plan targets on commercial grain and vegetable operations.<\/p>\n<\/div>\n

\n

Pasture and Lime Spreading<\/h3>\n

Lime spreading imposes particularly harsh duty on gearbox housings due to the abrasive, alkaline nature of agricultural lime and the high application rates needed for pH correction. The CMN190-R3’s corrosion-resistant cast iron housing and sealed oil bath lubrication system isolate the internal components from lime dust ingress, maintaining gear and bearing integrity over multiple seasons without requiring more than routine oil changes to keep performance at specification.<\/p>\n<\/div>\n

\n

Horticulture, Nurseries, and Turf Management<\/h3>\n

Where smaller, precisely managed spreaders are used in greenhouse nurseries, sports field maintenance, or golf course fertilization programs, the CMN190-R3 can be configured with reduced-speed input via speed-limiting couplings to achieve the lower application rates and tighter spread patterns these environments demand. The OEM customization program covers shaft-end configurations that match proprietary spreader frames used by turf equipment manufacturers.<\/p>\n<\/div>\n

\n

Industrial Bulk Material Handling<\/h3>\n

Beyond field applications, the gearbox drives screw conveyors and mixing augers in industrial bulk material processing environments including cement blending, chemical powder conveying, and aggregate transfer stations. The modular flange options allow direct connection to rotary valves, batch mixers, and silo dischargers, and the sensor-ready port provision supports load monitoring in automated plant control systems where conveyor jamming detection is safety-critical.<\/p>\n<\/div>\n

\n

Soil Amendments and Compost Spreading<\/h3>\n

Compost and soil amendment materials present high variability in density, moisture content, and particle size, all of which increase instantaneous shock load on gearbox components. The CMN190-R3’s hardened alloy gear set and preloaded bearing arrangement absorb these load spikes without pitting or fretting, maintaining consistent spread quality across variable-condition material batches. This makes it a reliable choice for organic farming operations running compost-based nutrient programs across large acreages.<\/p>\n<\/div>\n

\"CMN190-R3<\/p>\n

CMN190-R3 Fertilizer Spreader Gearbox Parts<\/h2>\n

Scatola del cambio
\nThe heavy-wall cast iron housing forms the structural backbone of the CMN190-R3, providing the rigid frame that holds all internal shafts, bearings, and gear sets in precise geometric alignment. Its high damping coefficient reduces transmitted vibration noise, and its mass acts as a thermal buffer against short-duration overload heat spikes. External boss faces are machined flat for accurate mounting against spreader frames and linked gearbox flanges, maintaining shaft alignment across multi-unit drive trains.<\/p>\n

Albero di ingresso
\nThe input shaft is splined to the 8X32X38X6 standard (OD 38mm, 8-spline) with an overall length of 95mm and a 72mm engagement depth, matching standard agricultural PTO drive shaft dimensions. It is case-hardened along the spline teeth and journal diameters to resist fretting wear at the coupling interface, then ground to final size for concentricity within tight tolerances that prevent the eccentric loading responsible for premature bearing failure in lower-quality units.<\/p>\n

Ingranaggi conici
\nThe spiral bevel gear pair is the core power-turning element of the fertilizer gearbox, machined from carburizing-grade alloy steel and case-hardened to 58-62 HRC at the tooth flanks. Spiral bevel geometry distributes tooth contact across a longer line than straight bevel gears, reducing unit contact stress and keeping noise levels acceptable even under full-rated torque. Tooth profiles are inspected against DIN or AGMA quality standards to ensure mesh accuracy that sustains rated performance throughout the gearbox’s service life.<\/p>\n

Albero di uscita
\nThe output shaft is machined to the international 1-3\/8″ Z6 six-spline profile with a total length of 89mm and a 66mm engagement depth, matching the most common driven-end coupling standard used on agricultural spreaders and conveyor drives globally. The shaft body is through-hardened for torsional strength at the 937 N\u00b7m rated output torque, and the outboard bearing journal is finish-ground for a precision fit with the housing bore that minimizes radial play and deflection under cantilever disc or auger loads.<\/p>\n

Cuscinetti
\nTapered roller bearings support both the input and output shafts, pre-set during assembly to the factory-specified preload that optimizes gear mesh contact and minimizes thermal play change during warm-up. The tapered geometry handles the combined axial and radial loads generated at the bevel gear mesh, particularly the gear separation force that acts axially on both shafts simultaneously during high-torque operation. Bearing seats are machined in a single setup to ensure concentricity between shaft axes, a detail that directly determines the useful life of the gear set.<\/p>\n

Paraoli
\nDual-lip oil seals at each shaft exit point prevent lubricant leakage while blocking field contaminants including fertilizer dust, moisture, and crop debris from entering the housing interior. The sealing lips run against precision-ground shaft landings to maintain consistent contact pressure across the operating temperature range. Replacement seals are dimensionally standardized and available as fertilizer spreader gearbox parts through CMN Transmission’s aftersales supply chain, making field servicing straightforward without specialized tooling.<\/p>\n

Sistema di lubrificazione
\nThe CMN190-R3 uses an oil-bath splash lubrication circuit sealed within the cast iron housing. A fill port with a combined level and filler plug allows the operator to maintain correct riduttore dello spandiconcime<\/strong><\/a> oil level without removing inspection covers. The drain plug at the lowest point of the sump enables complete oil changes without tilting the unit. EP (extreme-pressure) gear oil rated ISO VG 220 or equivalent is the recommended fill. Correct oil level directly affects bearing film thickness and gear surface fatigue life, making the level check the single most important routine maintenance task on this unit.<\/p>\n

\"CMN190-R3<\/p>\n

How to Install the CMN190-R3 Gearbox on Fertilizer Spreader<\/h2>\n

1. Power Down and Isolate the Drive Source<\/h3>\n

Before positioning the gearbox anywhere near the machine, disengage the tractor PTO, switch off the engine, and apply the park brake. If the installation involves an electric or hydraulic motor, isolate that power source at its disconnect switch and lockout\/tagout the control panel. Confirm that no residual pressure or stored energy remains in the drive train. This isolation step is non-negotiable: a single unintended rotation of a 937 N\u00b7m output shaft can cause serious injury or destroy a partially assembled drive coupling.<\/p>\n

2. Inspect and Prepare the Mounting Face<\/h3>\n

Check the spreader frame mounting surface for flatness and freedom from rust, old gasket material, or debris. Any surface deviation greater than 0.3mm across the bolt-hole span will apply bending stress to the gearbox housing when the mounting bolts are tightened, which shortens housing and bearing life. Use a straightedge to verify flatness and a wire brush or file to clean up raised weld beads or paint ridges on second-hand frames before positioning the unit.<\/p>\n

3. Align Input Shaft to the PTO Drive Shaft<\/h3>\n

Slide the gearbox into position and align the 8X32X38X6 input shaft spline with the mating spline in the drive shaft coupling. The spline should engage freely by hand with no rocking or tilting; forced engagement indicates angular misalignment that must be corrected by shimming or repositioning the gearbox before fastening. Misalignment loads acting through the input shaft spline are the most common cause of premature bearing and seal failure in field-installed fertilizer gearboxes, so this step warrants careful attention.<\/p>\n

4. Fasten Mounting Bolts to Specified Torque<\/h3>\n

Thread all M12 and M10 mounting bolts by hand first to confirm they engage freely. Apply a thread-locking compound rated for agricultural vibration environments to bolt shanks, then tighten in a cross pattern to draw the housing evenly against the mounting face. Torque M12 bolts to 80 to 90 N\u00b7m and M10 bolts to 45 to 50 N\u00b7m in two stages: first to 50% of final torque, then to full value. Using spring or Nord-Lock washers under each bolt head is strongly advised for machines that run over uneven terrain.<\/p>\n

5. Connect Output Shaft and Verify Auger Alignment<\/h3>\n

Slide the auger or disc-drive coupling onto the 1-3\/8″ Z6 output spline, confirm the retaining pin or locking collar seats fully in its groove, and check that the driven component can rotate through 360 degrees without contact with any fixed structure. For multi-auger configurations using linked secondary gearboxes, verify that all intermediate shaft supports are aligned before tightening any shaft retaining hardware, then work from the primary CMN190-R3 outward toward the terminal unit to establish the reference alignment for the full drive train.<\/p>\n

6. Fill to Correct Fertilizer Spreader Gearbox Oil Level<\/h3>\n

Remove the oil filler-level plug and fill with ISO VG 220 EP gear oil (or equivalent GL-4 or GL-5 rated gear lubricant) until oil reaches the bottom thread of the filler port, then replace the plug firmly. Overfilling raises operating temperature and can pressurize the housing, forcing oil past the shaft seals. Underfilling starves the bevel gear mesh and upper bearings of lubrication, causing rapid surface fatigue. Always fill with the gearbox at its installed operating angle, since oil volume and level point change with housing orientation.<\/p>\n

7. Conduct a No-Load Run-In Check<\/h3>\n

Reconnect the tractor PTO and, with the spreader hopper empty, engage the drive at low throttle (well below 540RPM) for a 10-minute run-in period. Listen for unusual gear whine, knocking, or vibration that would indicate misalignment, foreign object contamination, or assembly error. Check all shaft exit points for oil seepage after the run-in. Only once the gearbox has run cleanly at low speed should the PTO speed be increased to the rated 540RPM for initial operational testing under a light material load.<\/p>\n

\"CMN190-R3<\/p>\n

Precauzioni operative<\/h2>\n
\n
\n

1. Always Pre-Check Power Isolation Before Any Adjustment
\nBefore adjusting, unclogging, or inspecting any part of the drive train, disengage the PTO, switch off the tractor engine, wait for all rotating components to come to a complete stop, and engage the tractor park brake. Field accidents involving PTO-driven machinery commonly occur during brief maintenance interventions when operators assume the drive has already stopped. At 937 N\u00b7m, the CMN190-R3’s output shaft stores enough rotational energy at rated speed to cause life-threatening injury within a fraction of a second of unexpected engagement.<\/p>\n

2. Verify Fertilizer Spreader Gearbox Oil Level Before Each Season
\nCheck the fertilizer spreader gearbox oil level at the start of each spreading season and after every 100 hours of operation. Use ISO VG 220 EP gear oil or a recognized GL-4\/GL-5 equivalent. Contaminated oil that has changed color from its original amber to grey or black indicates water ingress or metal particle contamination and should be drained and replaced immediately rather than topped up. Oil that smells burnt or has visible foam indicates overheating or aeration from an overfill condition, both of which require investigation before continued use.<\/p>\n

3. Increase Speed Gradually During Each Operating Session
\nWhen starting the spreading operation, engage the PTO at low throttle and allow 2 to 3 minutes for the gear oil to circulate and warm before advancing to the rated 540RPM input speed. Cold oil has significantly higher viscosity than warm oil, and full-speed start-up with cold oil reduces the oil film thickness at the bevel gear mesh to below the minimum needed to prevent metal-to-metal asperity contact. This warm-up period is especially important for early-morning operations in temperatures below 5\u00b0C, where gear oil viscosity can temporarily exceed the pump-and-splash system’s circulation capacity.<\/p>\n

4. Inspect PTO Drive Shaft Angles and Telescoping Clearance
\nPTO shaft operating angle at the universal joints should remain below 15 degrees at all normal operating positions. Angles above this limit generate cyclic torque fluctuations at the gearbox input shaft that progressively displace gear backlash and loosen bearing pre-load. With the implement in the lowest operating position and the tractor in a tight turn, confirm that telescoping overlap remains at least 150mm in the PTO shaft’s compressed position to prevent the shaft from extending to full length and binding against the safety guard tube during field operation.<\/p>\n

5. Monitor Sensor Readings and Load Displays During Operation
\nOn units fitted with optional sensor ports and a connected performance display, the primary parameters to monitor are input shaft speed deviation from setpoint, housing temperature at the bearing bosses, and vibration amplitude at the mounting flange. A sudden increase in housing temperature accompanied by increased gear noise is the earliest field indicator of oil starvation or bearing deterioration. Address such readings immediately by reducing PTO speed and inspecting the oil level before completing the current field pass, rather than finishing the load and inspecting afterward.<\/p>\n

6. Verify Multi-Auger Balance in Linked Configurations
\nFor vertical four-auger or horizontal four-auger linked configurations, confirm before each season that all secondary gearboxes are correctly loaded relative to the primary CMN190-R3. An imbalanced multi-auger chain, caused by one auger binding against housing wear or a foreign object, concentrates excess torque on the primary gearbox input shaft rather than distributing it across the chain. Rotate each auger section by hand before startup to confirm free movement, and adjust material feed rates during initial loading to verify that no single section draws disproportionate power, as indicated by shaft temperature differences between positions along the drive chain.<\/p>\n

7. Clean Housing Exterior After Fertilizer Contact
\nGranular fertilizers, particularly those containing ammonium nitrate or urea, are hygroscopic and mildly corrosive to metal surfaces when moisture is present. After each work day, wash the gearbox exterior with clean water to remove fertilizer residue from the housing surface, mounting flanges, and shaft seal lips. Allow the housing to dry before storage. At season end, apply a thin coat of corrosion-inhibiting spray to all unpainted metal faces, particularly the mounting flange surfaces and shaft spline ends, to prevent rust pitting that would complicate next-season reinstallation.<\/p>\n<\/div>\n<\/div>\n

\"CMN190-R3<\/p>\n

Riduttore dello spandiconcime e albero cardanico agricolo<\/h2>\n

A PTO shaft, sometimes called a Power Take-Off shaft, is the primary mechanical link between a tractor’s engine-powered transmission output and the driven implement attached to the three-point hitch or drawbar. Instead of requiring every piece of farm machinery to carry its own dedicated engine, the PTO shaft lets a single tractor supply rotational power to a wide range of tools, from rotary tillers and flail mowers to bale wrappers, grain augers, and manure spreaders. Standard agricultural PTO speeds are 540RPM (typically on tractors rated below 65HP) and 1000RPM (on larger tractors), with shaft end profiles standardized internationally so that compliant implements connect without modification. CMN Transmission’s PTO shaft product range includes slip clutch torque limiters, shear bolt overload devices, full-shield safety guards, yokes, tubes, and adapters covering both 6-spline and 21-spline profiles for both speed standards.<\/p>\n

Fertilizer spreader gearboxes like the CMN190-R3 transfer the rotational energy arriving from that Albero di trasmissione della presa di forza<\/strong><\/a> into the lateral or vertical drive axes of the spinner discs, beater shafts, or auger systems that do the actual work of distributing material across the field. The gearbox is not simply a direction-change fitting; it is the mechanical interface that matches the tractor’s standardized 540RPM output speed and 72HP power rating to the specific torque and speed requirements of the spreading mechanism attached downstream. Without the gearbox, the PTO shaft’s longitudinal rotation cannot be redirected to the transverse disc spindles in a centrifugal spreader, and the torque amplification needed for moving tons of dense material through a manure spreader beater would be unavailable.<\/p>\n

The PTO drive shaft and the fertilizer spreader gearbox function as a matched system. PTO shaft selection directly affects the loads the gearbox must handle: a shaft that is too short creates excessive operating angle at the universal joints, generating cyclical torque pulsations at twice per revolution that pass directly into the gearbox input shaft bearings and gradually displace the gear mesh out of specification. A shaft that is too long allows the two telescoping tubes to contact their end stops during tight turns or when the implement is raised on the three-point hitch, transmitting compressive impact force through the universal joints and input shaft into the gearbox housing. Correct PTO shaft length selection, combined with a properly rated slip clutch or shear bolt torque limiter positioned between the PTO output and the gearbox input, protects the gearbox from the overload events that cause gear tooth fracture during slug feeding or rock contact on spreader machines.<\/p>\n

CMN Transmission supplies complete PTO shaft assemblies alongside the CMN190-R3 gearbox, dimensioned specifically for the tractor models and implement geometries that buyers specify. This paired supply approach ensures that input shaft spline engagement depth, operating angles, and telescoping overlap are all within the designed performance envelope rather than left to field improvisation. For OEM machinery builders, CMN Transmission can supply PTO shafts and gearboxes under a single sourcing arrangement, simplifying the bill of materials and ensuring dimensional compatibility is verified before production assembly rather than discovered at first field commissioning.<\/p>\n

Regular maintenance of the PTO shaft, including lubrication of universal joint bearing cups and inspection of the safety guard’s rotating capacity, directly protects the gearbox by preventing the vibration and shock loads that develop when worn U-joints begin to bind through their working angle range. Buyers should plan PTO shaft inspection into the same service schedule as gearbox oil level checks, treating the two components as a single mechanical system rather than independent service items.<\/p>\n\n\n\n
\"CMN190-R3<\/td>\n\"Albero<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Lawn Mower Gearbox vs Fertilizer Spreader Gearbox<\/h2>\n

Che cos'\u00e8 un riduttore per tosaerba?<\/h3>\n

A tractor PTO-driven lawn mower gearbox is a vital component in agricultural and landscaping equipment, ensuring efficient grass cutting across large areas. Connected to the tractor’s PTO shaft, it transfers and adjusts engine power to the mower blades, providing the optimal speed and torque needed for effective cutting. Built from cast iron or forged aluminum, the housing is designed to handle outdoor operating conditions and the cyclical shock loading generated when blades contact rocks, stumps, and dense vegetation. Internal speed-increase gears drive the blade spindles at far higher RPM than the PTO input, a design requirement completely opposite to the speed-neutral approach used in the fertilizer spreader gearbox. Seals and labyrinth shields protect the gear oil from the constant downward spray of cut grass, moisture, and soil particles, while an easily accessed oil level plug simplifies field maintenance.<\/p>\n

Vantaggi dei riduttori per tosaerba<\/h4>\n
    \n
  • Speed multiplication from PTO input to blade spindle allows grass-cutting tip speeds well above what the tractor PTO itself could directly provide, resulting in a cleaner cut finish across varied grass heights and densities.<\/li>\n
  • Compact, low-profile housing geometry sits close to the cutting deck, keeping the center of gravity of the mower head low and reducing scalping risk on uneven terrain.<\/li>\n
  • Multiple output flanges in multi-spindle designs distribute blade drive from a single gearbox, eliminating the separate belt drives and idler pulleys that wear out on traditional V-belt deck designs.<\/li>\n
  • Sealed oil bath lubrication requires no daily greasing and tolerates the continuous orientation changes that occur when a mowing deck follows terrain contours over a full working day.<\/li>\n
  • Blade brake clutch integration in some models allows individual spindles to be disengaged without stopping the PTO, useful for obstacle clearance during operation on complex terrain.<\/li>\n<\/ul>\n

    Applicazioni dei riduttori per tosaerba<\/h4>\n
      \n
    • Rear-discharge finishing mowers for parkland, roadside verge management, airfield grass maintenance, and large estate grounds where cut quality and operating speed are both important.<\/li>\n
    • Flail mower heads on compact tractors for vineyard floor management, orchard under-tree cutting, and embankment vegetation control where mulching rather than collecting is the preferred outcome.<\/li>\n
    • Sports field maintenance equipment including multi-deck wide-area rotary mowers used on football pitches, race courses, and municipal parks requiring consistent presentation quality.<\/li>\n
    • Disc mower conditioning units for dairy and beef cattle silage and hay production, where the gearbox drives the disc cutter-bar at high speed while conditioning rolls flatten the cut material for faster field drying.<\/li>\n<\/ul>\n

      Che cos'\u00e8 un riduttore per spandiconcime?<\/h3>\n

      A fertilizer spreader gearbox, sometimes called a fertilizer distributor gearbox, is an essential component of agricultural machinery designed specifically for soil preparation, crop treatment, and fertilizer spreading operations. Positioned at the center of the spreading machine, it transmits power from the tractor PTO to the spinning discs, agitators, or augers that distribute fertilizer, lime, or seed across the field. These agricultural gearboxes for fertilizer spreaders are engineered for durability and reliability in highly corrosive, abrasive operating environments, transmitting consistent torque through a series of bevel gears and shafts that convert the PTO’s longitudinal rotation into the transverse or vertical drive that spreading mechanisms require.<\/p>\n

      Vantaggi dei riduttori per spandiconcime<\/h4>\n
        \n
      • Right-angle power transmission allows spreader discs and augers to be positioned in the most effective mechanical arrangement for field coverage without constraining where the tractor PTO must be located relative to the machine frame.<\/li>\n
      • High output torque at the rated fertilizer spreader gearbox ratio handles dense, wet material loads without the torque spike stalling that damages lower-rated gearboxes during cold-start operation with frozen or caked fertilizer in the hopper.<\/li>\n
      • Corrosion-resistant construction, including the cast iron housing and sealed lubrication system, directly resists the chemical attack from nitrogen-based fertilizers and ammonium nitrate compounds that rapidly degrade aluminum or mild steel housings.<\/li>\n
      • OEM and ODM customization support from fertilizer spreader gearbox manufacturers like CMN Transmission enables precise matching of shaft dimensions, bolt patterns, and gear ratios to each machinery builder’s proprietary frame design without requiring costly adapters.<\/li>\n
      • Linked gearbox compatibility allows a single primary unit to power a multi-auger drive train with consistent torque distribution across all sections, scaling material throughput capacity without requiring separate motor drives for each conveyor section.<\/li>\n<\/ul>\n

        Applicazioni dei riduttori per spandiconcime<\/h4>\n
          \n
        • Centrifugal twin-disc fertilizer spreaders for granular fertilizers, mineral lime, and seed, distributing material at rated widths of 12 to 36 metres on commercial arable and pasture farms.<\/li>\n
        • Horizontal beater manure spreaders for organic waste distribution on livestock farms, where the gearbox simultaneously drives the floor conveyor and the high-speed shredder beaters that project material outward.<\/li>\n
        • Precision variable-rate application systems on GPS-guided spreading equipment, where consistent gearbox output supports application controller accuracy at varying ground speeds and material densities.<\/li>\n
        • Feed distribution auger systems in livestock housing where the gearbox drives a chain of linked auger gearboxes to deliver TMR (total mixed ration) feed along the full length of a freestall barn feeding alley.<\/li>\n
        • Industrial fertilizer blending and bagging plants where screw conveyor drives fed by the gearbox meter materials into weighing hoppers and packaging lines in continuous production operations.<\/li>\n<\/ul>\n
          \n\n\n\n\n\n\n\n\n\n\n\n\n
          Caratteristica<\/th>\nRiduttore del tosaerba<\/th>\nRiduttore dello spandiconcime<\/th>\n<\/tr>\n<\/thead>\n
          Funzione primaria<\/td>\nSpeed increase to blade spindles<\/td>\nRight-angle power redirection to discs\/augers<\/td>\n<\/tr>\n
          Rapporto di trasmissione tipico<\/td>\nSpeed increase (e.g., 1:1.5 to 1:3)<\/td>\n1:1 or custom reduction<\/td>\n<\/tr>\n
          Output Torque Focus<\/td>\nModerate (blade cutting force)<\/td>\nHigh (937 N\u00b7m at rated load)<\/td>\n<\/tr>\n
          Materiale per alloggi<\/td>\nCast iron or aluminum alloy<\/td>\nHeavy-wall cast iron<\/td>\n<\/tr>\n
          Chemical Exposure<\/td>\nGrass sap, moisture, soil<\/td>\nNitrogen compounds, lime, ammonium salts<\/td>\n<\/tr>\n
          Linked Drive Compatibility<\/td>\nMulti-spindle deck only<\/td>\nFull multi-auger linked chain<\/td>\n<\/tr>\n
          Personalizzazione OEM<\/td>\nLimited to standard sizes<\/td>\nFull OEM\/ODM on ratio, shafts, flanges<\/td>\n<\/tr>\n
          Sensor \/ Automation Port<\/td>\nNot standard<\/td>\nOptional sensor-ready port available<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

          \"CMN190-R3<\/p>\n

          Why Choose CMN Transmission’s Fertilizer Spreader Gearboxes?<\/h2>\n

          Korea CMN Transmission Co., Ltd. was established in 2000 and operates from its main facility in Sandan-o, Danwon-gu, Ansan-si, Gyeonggi-do, Korea. With more than 100 factory employees and a dedicated R&D team, CMN Transmission focuses exclusively on the design, manufacturing, and global distribution of agricultural gearboxes and power transmission components. Over the past 25 years, the company has grown into a trusted primary supplier for agricultural OEMs, equipment rebuilders, and professional distributors across more than 60 countries.<\/p>\n

          CMN Transmission’s product range spans the full breadth of agricultural gearbox applications: rotary cutter gearboxes, rotary tiller gearboxes, feed mixer gearboxes, rotary mower gearboxes, fertilizer spreader gearboxes, flail mower gearboxes, post hole digger gearboxes, round baler gearboxes, square baler gearboxes, disc mower gearboxes, center pivot irrigation gearboxes, hydraulic drive gearboxes, silage machine gearboxes, orchard sprayer gearboxes, rotary rake gearboxes, combine harvester gearboxes, grain storage gearboxes, grain transportation gearboxes, corn header gearboxes, cutting bar gearboxes, and poultry feeding gearboxes, plus a custom agricultural gearbox program covering nearly one thousand individual specifications. These products are used in grain harvesting, forage machinery, mowers, balers, rakes, rotary tillers, fertilizer spreaders, sprayers, feed mixers, silage machines, and combine harvesters across all major agricultural regions worldwide.<\/p>\n

          Complementary product lines include PTO shafts, universal joints, yokes, tubes, torque limiters, safety guards, adapters, couplings, bearings, blades, chains, and sprockets, allowing OEM customers to consolidate their power transmission component sourcing under a single technically capable supplier. Annual production exceeds 500,000 units, and the manufacturing operation runs under CE and ISO 9001:2015 certified quality management covering material sourcing, machining, heat treatment, assembly, and pre-shipment test procedures.<\/p>\n

          Export destinations include the United States, Canada, Mexico, Brazil, Argentina, France, Germany, Italy, Spain, the United Kingdom, Russia, China, India, Thailand, Vietnam, Turkey, Australia, New Zealand, and many additional markets across Africa and Southeast Asia. CMN Transmission’s logistics team manages DDP, CIF, and FOB shipping arrangements, and the technical team provides English-language documentation, pre-sales dimensional verification, and post-sale support for all export markets.<\/p>\n

          For fertilizer spreader manufacturers, distributors, and farm operators looking for a reliable source of agricultural gearbox for fertilizer spreader applications with full OEM capability, competitive factory-direct pricing, and proven export logistics, CMN Transmission provides the combination of manufacturing scale, technical depth, and certification credibility that globally operating agricultural businesses need in a long-term supply partner. Custom production based on customer drawings and specifications is accepted for agricultural gearboxes, PTO shafts, and related agricultural machinery components, with the engineering and quality teams engaged directly from the initial design review through production approval and first-article inspection.<\/p>\n

          \"Produttori<\/p>\n

          Domande frequenti<\/h2>\n

          Q: What is the fertilizer spreader gearbox ratio of the CMN190-R3, and why is a 1:1 ratio used?<\/strong>
          \nA: The CMN190-R3 operates at a 1:1 fertilizer spreader gearbox ratio, meaning the output shaft rotates at the same speed as the input shaft: 540RPM in, 540RPM out. This ratio is standard for centrifugal disc spreaders and twin-spinner machines where the disc tip speed required for correct spread-width performance is derived directly from tractor PTO speed rather than from gear reduction. At 540RPM, the discs achieve the calibrated tip velocity for which the disc vane geometry was designed, keeping spread pattern width and evenness within specification. Changing the ratio would require re-calibrating or replacing the disc-and-vane set, which most machine builders design around the 540RPM standard.<\/p>\n

          Q: What oil should I use, and what is the correct fertilizer spreader gearbox oil level?<\/strong>
          \nA: The CMN190-R3 is filled with ISO VG 220 EP gear oil or a recognized GL-4\/GL-5 rated equivalent. Fill the housing until oil reaches the bottom thread of the filler-level plug with the gearbox at its installed operating angle. Do not use engine oil or multi-purpose grease in place of gear oil, as both lack the extreme-pressure additive package needed to protect the bevel gear tooth flanks under the 937 N\u00b7m output torque load. Check the fertilizer spreader gearbox oil level at the start of each season and every 100 hours of operation. Drain and replace the oil every 300 to 500 operating hours or once per season, whichever comes first.<\/p>\n

          Q: Is the CMN190-R3 compatible with a standard 1-3\/8″ PTO shaft?<\/strong>
          \nA: The output shaft of the CMN190-R3 is machined to the 1-3\/8″ Z6 six-spline standard with an 89mm total length and 66mm engagement depth, which matches the most widely used driven-end coupling specification on agricultural implements globally. The input shaft uses an 8X32X38X6 spline profile at 38mm OD with a 95mm total length and 72mm engagement depth. If your drive shaft uses a different spline count or diameter, CMN Transmission can supply the unit with a custom input shaft configuration as part of the OEM\/ODM program. Confirm both the input and output shaft profiles against your specific drive shaft and implement coupling dimensions before ordering.<\/p>\n

          Q: Can I order the CMN190-R3 with a different gear ratio for my specific application?<\/strong>
          \nA: Yes. CMN Transmission’s OEM and ODM program covers custom agricultural gearbox ratios, shaft diameters, spline profiles, and mounting flange patterns for minimum order quantities. If your auger or disc mechanism requires a speed reduction or increase from the 540RPM PTO standard, the engineering team can specify an alternative bevel gear pair to achieve the required output speed while maintaining an appropriate torque rating for your application. Submit your driven-mechanism speed requirement, maximum input torque, and mounting dimension constraints to the technical team via the contact form or email for a quotation with lead time.<\/p>\n

          Q: What certifications does the CMN190-R3 carry, and is it approved for EU markets?<\/strong>
          \nA: The CMN190-R3 is manufactured within CMN Transmission’s CE and ISO 9001:2015 certified quality management system. A CE conformity declaration and ISO certification documentation are included in the shipping package and are available in advance in PDF format for customers who need to complete incoming supplier qualification or machinery directive compliance documentation before the goods arrive. CMN Transmission exports to EU member states including Germany, France, Italy, Spain, and others, and has extensive experience providing the technical documentation packages that EU machinery importers require under the Machinery Directive 2006\/42\/EC.<\/p>\n

          Q: How do I know if the CMN190-R3 will fit my existing spreader frame?<\/strong>
          \nA: Download the dimensional drawing from the product page and check the top flange bolt pattern (N*8-M12 on 100mm x 114mm centers), the end face patterns (N*4-M10), and the shaft overhang dimensions against your frame’s mounting holes and shaft clearance envelope. CMN Transmission’s technical team can also review photos or a dimensional sketch of your existing mounting arrangement and confirm fitment before you commit to ordering, which is the approach recommended for buyers replacing a failed gearbox from a different manufacturer whose dimensions may differ from the CMN standard.<\/p>\n

          Q: Where can I find fertilizer spreader gearbox parts for the CMN190-R3 if I need a repair?<\/strong>
          \nA: CMN Transmission supplies genuine fertilizer spreader gearbox parts including oil seals, bearings, bevel gear sets, and shaft snap rings as separately orderable items. Contact the technical team with your unit’s serial number and the part reference from the dimensional drawing or parts list supplied with the gearbox. For distributors holding stock of the CMN190-R3, a small spares package covering the most commonly replaced items (seals and bearings) can be ordered alongside the initial gearbox stock to support customer after-sale needs without a separate international order lead time.<\/p>\n

          Q: How does the CMN190-R3 handle linked multi-auger drive configurations?<\/strong>
          \nA: The CMN190-R3 is designed as a primary drive unit in linked auger gearbox configurations. Its output shaft provides the primary rotational input to the first linked secondary gearbox, which in turn feeds subsequent units along the drive chain. Auger configurations supported include vertical double augers, vertical four augers, horizontal three augers, and horizontal four augers. When specifying a multi-unit installation, each secondary gearbox should be sized for its share of the total drive torque rather than to the full 937 N\u00b7m primary rating, as torque loads typically decrease along the chain as material is distributed. CMN Transmission can supply matched sets of primary and secondary gearboxes for complete auger drive train applications.<\/p>\n

          Q: Is there a minimum order quantity, and how quickly can CMN ship?<\/strong>
          \nA: CMN Transmission sells in single units for machinery repair and evaluation purposes, with no minimum order quantity for standard specifications. OEM custom variants requiring modified shaft dimensions, non-standard ratios, or private-label markings are subject to minimum order quantities agreed during the quotation process. Standard units from stock typically ship within 5 to 15 working days of order confirmation, depending on destination. Custom units require a production lead time that the engineering team will specify at quotation. CMN Transmission has direct export experience to over 60 countries and works with established freight forwarders for DDP, CIF, and FOB shipping arrangements.<\/p>\n

          Q: What is the warranty on the CMN190-R3, and what does it cover?<\/strong>
          \nA: All CMN190-R3 units carry a full one-year quality warranty from the date of shipment, covering manufacturing defects in materials and workmanship. The warranty covers premature bearing failure, casting porosity that leads to housing oil leakage, and gear tooth manufacturing defects confirmed by inspection. It does not cover failures resulting from overloading beyond the 72HP \/ 937 N\u00b7m rated specification, incorrect oil fill, misalignment at installation, or damage from foreign objects entering through a damaged seal. To initiate a warranty claim, contact CMN Transmission with the unit serial number, shipping documentation, photos of the defect, and a description of the operating conditions at the time of failure.<\/p>\n

          \"CMN190-R3<\/p>\n

          Recensioni dei clienti<\/h2>\n

          Robert Metzger, Corn and Soybean Farming, United States<\/strong>
          \n“We run three CMN190-R3 units on our twin-disc centrifugal spreaders across 1,800 acres of corn and soybean ground in Indiana. After two full spreading seasons, I cannot fault them. The cast iron housing shows no corrosion despite heavy urea and DAP contact, and the oil seals have not leaked a drop. We were replacing Chinese gearboxes from a different supplier every 14 months on average. These have been in continuous use for 22 months and show no sign of needing replacement. Mounting bolt pattern matched our existing frame holes exactly, so swapping them out took under an hour per machine.”<\/p>\n

          Jean-Baptiste Renaud, Grain Farming, France<\/strong>
          \n“Ordered eight units for a spreader production run we had contracted to deliver in September. CMN shipped all eight within 12 working days of order confirmation with full test records and CE certificates included in the documentation package. That saved us several weeks of our own incoming inspection work. The 1:1 ratio performed exactly to datasheet, and the shaft spline dimensions were spot-on for our proprietary disc-drive couplings. Will absolutely use CMN Transmission as our preferred agricultural gearbox supplier going forward. Customer service response time was also impressive, usually back within a few hours despite the time zone difference.”<\/p>\n

          Derek Kowalchuk, Pasture Management, Canada<\/strong>
          \n“I was skeptical about ordering a gearbox from an overseas supplier, but the technical support from CMN was genuinely good. I sent them photos of my existing gearbox and the frame mounting points on my manure spreader, and they confirmed the CMN190-R3 would fit before I committed to buying. The unit arrived well packed, no damage, and came with an instruction sheet and an oil fill specification. It has been working hard on a 1,000-head beef feedlot operation in Alberta for one full winter season including some seriously cold mornings. No oil leaks, no unusual noise, and the output shaft spline is still tight. Happy with it.”<\/p>\n

          Carlos Henrique Figueiredo, Agricultural Equipment, Brazil<\/strong>
          \n“We manufacture small-scale fertilizer distributors in Sao Paulo and have been sourcing gearboxes locally at high cost. A colleague recommended CMN Transmission. We ordered a trial batch of 15 units and had them inspected on arrival. The dimensional conformance was very good, gear mesh noise was lower than our previous supplier’s parts, and the 1-3\/8″ Z6 output shaft fit our standard disc-drive coupling perfectly. After six months of field trials with customers in Parana and Mato Grosso, we have received no warranty claims. We have now placed a standing order for 60 units per quarter and are discussing an OEM marking arrangement with the CMN team.”<\/p>\n

          Thomas Weidemann, Agricultural Machinery, Germany<\/strong>
          \n“We procured the CMN190-R3 for our fertilizer spreader testing facility at the plant. The technical documentation was complete, and the ISO 9001 certification significantly facilitated our internal acceptance process. The housing fits precisely; the bolt holes were within 0.1 mm of our drawing. So far, not a single failure after 9 months of testing under variable loads from 300 to 900 N\u00b7m. Very good price-performance ratio, and the technical contact at CMN always replied to our questions within a day.”<\/p>\n

          James Whitmore, Wheat and Oilseed Rape Farming, United Kingdom<\/strong>
          \n“My family operates a 600-hectare wheat and oilseed rape farm in Lincolnshire and we run a twin-spinner spreader for our autumn and spring fertilizer programs. The gearbox on our previous spreader failed halfway through last autumn’s sulfur application and cost us two days of downtime waiting for a replacement. I sourced the CMN190-R3 as a spare and it has since become our primary unit after we moved it onto a rebuilt spreader frame. Delivery from order to my yard was 16 days, which was faster than the UK-based distributor could supply a comparable part. Price was fair, build quality is noticeably solid, and it’s been running all this season without any issues.”<\/p>\n

          Marco Bianchi, Vineyard Nutrient Management, Italy<\/strong>
          \n“We installed three CMN190-R3 units on manure spreaders produced in our workshop in Mantua. The quality of the machining is superior to those we used to buy in Europe at double the price. The mounting flanges were perfect without the need for additional machining. After eight months of intensive use on heavy soils in the Po Valley, no problems with oil leaks or unusual noises. CMN’s technical support helped us define a customized version with a different shaft connection for one of our special machines. Very positive experience.”<\/p>\n

          Nathan Burgess, Agricultural Parts Distributor, Australia<\/strong>
          \n“I distribute agricultural machinery parts across New South Wales and Queensland and have been looking for a cost-effective alternative to European gearboxes for my clients’ spreading equipment. Trialled the CMN190-R3 with two customer accounts running variable-rate fertilizer programs on broadacre cropping operations. Both reported smooth operation through a full season with no gear noise complaints and no leaks after 180 operating hours. The 1-3\/8″ output shaft spline matched the existing couplings on both machines without adapters. Price delivered to Sydney was competitive, and the DDP shipping arrangement meant no customs surprises on arrival. Taking on a stock holding arrangement for the 2025 season.”<\/p>\n

          Rodrigo Paz, Agricultural Mechanic Workshop, Argentina<\/strong>
          \n“Our workshop in Salta repairs and modernizes seeders and fertilizer spreaders for producers in the NOA region. We have been using the CMN190-R3 for four months as a replacement for original gearboxes in equipment with over ten years of use. The adaptation was direct in all cases thanks to the mounting holes and output shaft profile being compatible. The housing material is clearly superior to the generic Chinese gearboxes we tested before: no deformations under load and no oil leaks after the first few hours of break-in. The CMN team sent us dimensional drawings without us asking, which greatly sped up the adaptation work in the workshop.”<\/p>","protected":false},"excerpt":{"rendered":"

          The CMN190-R3 is a cast iron right-angle fertilizer spreader gearbox rated at 72HP and 540RPM PTO input, purpose-engineered for heavy-duty agricultural fertilizing and seeding equipment. Operating at a 1:1 ratio, it accepts 53kW of input power and delivers 937 N\u00b7m of output torque at a matched 540RPM output speed, making it one of the most torque-dense units in its class. This agricultural gearbox connects directly to the tractor PTO via a standard drive shaft, channeling power to spinner discs, auger drives, or twin-rotor distribution mechanisms with zero speed loss across the right-angle turn.<\/p>","protected":false},"featured_media":8040,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"CMN190-R3 Fertilizer Spreader Gearbox Ratio 1:1 Cast Iron Right Angle 72HP 540RPM PTO\r\n\r\nThis CMN190-R3 Fertilizer Spreader Gearbox Ratio 1:1 Cast Iron Right Angle 72HP 540RPM PTO can be used in conjunction with other products to transmit power through the drive shaft. Linked auger gearboxes, auger gearboxes can be divided into vertical double augers, vertical four augers, horizontal three augers, horizontal four augers, etc., according to different uses, different designs, and different machine sizes. This versatile power transmission gearbox is engineered to connect seamlessly with various agricultural and industrial machinery via the drive shaft. Built to match different operational needs, machine sizes, and design specifications, this gearbox serves as a core component for efficient material handling and mechanized processes.\r\n\r\nFeaturing a hardened alloy steel housing and precision-cut helical gears, the fertilizer spreader gearbox delivers exceptional durability under continuous heavy-duty use. Designed for agricultural fertilizing & seeding equipment, CMN190-R3 has a 1:1 ratio. At 540rpm input, it works with 53kW power to output 937 N \u00b7 m respectively. Heavy-duty cast construction guarantees stable performance amid tough farm conditions. We supply factory-direct pricing with flexible OEM & ODM customization for dimensions and structures. All gearboxes come with a full one-year quality warranty.\r\n\r\n\"CMN190-R3\r\n

          Technical Parameters<\/h2>\r\n\"CMN190-R3\r\n

          Shafts<\/h2>\r\n

          \"CMN190-R3<\/h2>\r\n\r\n\r\n\r\n\r\n\r\n\r\n
          Use<\/td>\r\nRatio<\/td>\r\nInput<\/td>\r\nOutput<\/td>\r\n<\/tr>\r\n
          r.p.m<\/span><\/td>\r\nHp<\/span><\/td>\r\nKw<\/span><\/td>\r\nN.m<\/span><\/td>\r\nr.p.m<\/span><\/td>\r\nN.m<\/span><\/td>\r\n<\/tr>\r\n
          Speed Reducer<\/td>\r\n1:1<\/td>\r\n540<\/td>\r\n72<\/span><\/td>\r\n53<\/span><\/td>\r\n937<\/span><\/td>\r\n540<\/span><\/td>\r\n937<\/span><\/td>\r\n<\/tr>\r\n
          Remark: If you have any special requirements, feel free to let me know; we also accept custom orders.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>","_et_gb_content_width":""},"product_brand":[],"product_cat":[309],"product_tag":[316,315,311,317,318,319,310],"class_list":{"0":"post-8285","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-fertilizer-spreader-gearbox","7":"product_tag-fertiliser-spreader-gearbox","8":"product_tag-fertilizer-distributor-gearbox","9":"product_tag-fertilizer-spreader-gearbox","10":"product_tag-fertilizer-spreader-gearbox-for-sale","11":"product_tag-fertilizer-spreader-gearbox-manufacturers","12":"product_tag-fertilizer-spreader-gearbox-suppliers","13":"product_tag-gearbox-for-fertilizer-spreader","15":"first","16":"instock","17":"shipping-taxable","18":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/product\/8285","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/comments?post=8285"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/media\/8040"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/media?parent=8285"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/product_brand?post=8285"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/product_cat?post=8285"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/product_tag?post=8285"}],"curies":[{"name":"parola chiave","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}