{"id":8288,"date":"2026-09-24T02:03:07","date_gmt":"2026-09-24T02:03:07","guid":{"rendered":"https:\/\/korea-transmission.com\/?post_type=product&p=8288"},"modified":"2026-09-24T08:19:51","modified_gmt":"2026-09-24T08:19:51","slug":"cmn190-r3-fertilizer-spreader-gearbox-ratio-1-461-cast-iron-right-angle-88hp-540rpm-pto","status":"publish","type":"product","link":"https:\/\/korea-transmission.com\/nl\/product\/cmn190-r3-fertilizer-spreader-gearbox-ratio-1-461-cast-iron-right-angle-88hp-540rpm-pto\/","title":{"rendered":"CMN190-R3 Kunstmeststrooier Versnellingsbakverhouding 1,46:1 Gietijzer Haakse koppeling 88 pk 540 tpm PTO"},"content":{"rendered":"

The CMN190-R3 is a right-angle agricultural gearbox built to drive auger-based fertilizer spreading and material conveying systems. It connects to a tractor’s 540 RPM PTO via the input shaft and transfers rotational power through precisely machined internal gearing to drive vertical or horizontal auger arrangements. Whether integrated into vertical double-auger configurations, vertical four-auger assemblies, horizontal three-auger setups, or horizontal four-auger spreaders, this fertilizer spreader gearbox adapts to a wide spectrum of machine designs and operational demands. The right-angle drive architecture allows flexible mounting orientations, making it equally well suited for new equipment builds and retrofit installations on existing farm machinery.<\/p>\n

Constructed from heavy-duty cast iron with hardened alloy steel internal components, the CMN190-R3 fertilizer distributor gearbox delivers 65 kW of continuous power and converts 540 RPM input into 368 RPM output, generating 1686 N\u00b7m of torque at the output shaft. That torque output is substantial enough to pull dense, compacted materials through auger flighting without stalling or shearing. Every unit ships with full OEM and ODM customization options covering shaft dimensions, flange configurations, and structural layouts, and is backed by a one-year quality warranty. Factory-direct supply from CMN Transmission keeps pricing competitive for volume buyers, distributors, and equipment manufacturers sourcing fertilizer spreader gearbox parts for production lines or field replacements.<\/p>\n

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

Technische parameters<\/h2>\n

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

Schachten<\/h2>\n

\"CMN190-R3<\/h2>\n\n\n\n\n\n\n
Use<\/td>\nVerhouding<\/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>\n1.46:1<\/td>\n540<\/td>\n88<\/span><\/td>\n65<\/span><\/td>\n1149<\/span><\/td>\n368<\/td>\n1686<\/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 CMN190-R3 Fertilizer Spreader Gearbox<\/h2>\n

1. Robust Construction for Demanding Environments
\nThe CMN190-R3 fertilizer gearbox is built from dense cast iron, providing excellent vibration damping and resistance to the torsional stress generated by heavy spreading loads. Hardened alloy steel precision-cut gears operate within tight tolerances, reducing backlash and wear over long service cycles. The sealed housing keeps fertilizer dust, moisture, and field debris out of the gear train, supporting dependable operation across seasons and soil types without frequent teardowns for cleaning.<\/p>\n

2. High-Efficiency Gear Engagement
\nThe precision-cut bevel and spur gear arrangement inside the CMN190-R3 achieves consistent mesh contact across the full load range, keeping mechanical losses low and ensuring that most of the 65 kW input power reaches the output shaft without excess heat generation. Smooth gear engagement also reduces shock loading on auger shafts and bearings, which directly extends the working life of connected components. Lower operating temperatures further reduce oil degradation rates, extending lubricant service intervals compared to less refined agricultural gearboxes on the market.<\/p>\n

3. Modular Design for Easy Customization
\nThe gearbox supports modular assembly, allowing users to configure input and output shafts, retain the 1.46:1 fertilizer spreader gearbox ratio, and adjust mounting orientations to match specific auger layouts. Optional flange adapters and coupling kits create clean connections to both standard and non-standard auger drives. This flexibility shortens integration time when retrofitting older equipment or expanding a production line, and the 1-3\/8″ Z6 output spline provides direct compatibility with common North American and European PTO driveline standards.<\/p>\n

4. Smart Compatibility with Precision Systems
\nEquipped with optional sensor-ready ports, the gearbox enables real-time performance tracking and preventive maintenance alerts. It is compatible with automated control systems for variable-speed operations, supporting precision agriculture workflows and industrial automation. On farms where GPS-guided variable-rate application is used, the gearbox can be paired with electronic control units that modulate PTO speed, maintaining consistent spread rates as tractor speed changes across field zones.<\/p>\n

5. Versatile Power Transmission Architecture
\nThis agricultural gearbox for fertilizer spreaders is engineered to connect seamlessly with a broad range of agricultural and industrial machinery via the drive shaft. Auger configurations supported include vertical double augers, vertical four augers, horizontal three augers, and horizontal four augers. The right-angle gearbox body keeps the drivetrain compact and reduces the overall machine footprint while maintaining full-rated torque delivery, making it practical for both trailed and mounted spreader frames where space constraints are a real design challenge.<\/p>\n

6. OEM and ODM Customization Support
\nCMN Transmission manufactures this fertilizer spreader gearbox to customer drawings and specifications. Modifications include adjusting shaft lengths and diameters, adding mounting flanges, changing seal types for specific chemical environments, and modifying the gear ratio to match non-standard spreading equipment. Equipment manufacturers can also request private-label packaging and documentation. Minimum order quantities for customized variants are negotiable, and factory engineers provide DFM feedback during the design review stage to avoid costly tooling revisions later.<\/p>\n

7. Certified Quality and Warranty Coverage
\nEvery CMN190-R3 unit is produced under CE and ISO 9001 certified management systems, with dimensional and performance checks carried out at multiple stages of the manufacturing process. Final assembly includes a load test before packaging. A full one-year quality warranty covers material and workmanship defects, and the CMN Transmission after-sales team provides technical support for installation questions, oil fill levels, and gearbox adjustment guidance directly to international buyers and their local service partners.<\/p>\n

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

Werkingsprincipe<\/h2>\n

The CMN190-R3 is an enclosed system of precision gears, shafts, and bearings designed to transmit rotational power from a tractor’s PTO to the working mechanisms of a spreading implement. In auger-driven fertilizer and material handling applications, it acts as the central node for power distribution across multiple output points.<\/p>\n

Tractors deliver PTO power at a standardized 540 RPM speed, but the internal mechanisms of a spreader including floor conveyors, distribution augers, and spinner assemblies each require different rotational speeds and torque levels to function correctly. The gearbox utilizes the 1.46:1 gear reduction ratio to transform the 540 RPM tractor input into 368 RPM at the output while simultaneously multiplying torque from 1149 N\u00b7m at input to 1686 N\u00b7m at output. That torque multiplication is the fundamental reason a relatively modest tractor engine can move tons of dense granular fertilizer, wet manure, or seed through the machine without mechanical failure.<\/p>\n

Power enters through the input shaft and is redirected through precisely machined bevel gears that change the axis of rotation by 90 degrees, which is the defining feature of the right-angle design. This redirection allows the tractor PTO, which runs horizontally, to drive augers or spinners that operate on a perpendicular axis without complex intermediate linkages. From the output shaft, power flows into the auger flighting or connected secondary gearboxes that drive individual auger sections in vertical or horizontal array configurations.<\/p>\n

The overall effectiveness of an auger spreader depends on synchronizing two primary systems: the material delivery system, which moves product from storage toward the distribution point at a controlled pace, and the material distribution system, which disperses product at the target spread width and rate. The CMN190-R3 coordinates these systems through its multi-output capability. One output drives the floor chain or conveyor at a deliberate pace while a linked secondary output or gearbox drives distribution beaters or augers at higher velocity to break up clumps and distribute product evenly.<\/p>\n

If the gearbox fails to synchronize these two actions, the spreader will jam or apply product unevenly. The CMN190-R3’s precise gear engagement and controlled output ratios prevent this by maintaining a consistent mechanical relationship between input speed and all output speeds throughout the full operating range from light seeding applications to dense manure spreading at maximum throughput.<\/p>\n

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

Application Scenarios<\/h2>\n
\n

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

Feed mills and fertilizer blending plants use this fertilizer spreader gearbox to drive augers in dosing, weighing, and packaging systems. Precision gear engagement ensures accurate material delivery during blending, supporting consistent product quality batch after batch. Compatibility with automated control systems enables synchronization with crushers, dryers, and bagging units, creating continuous workflows that reduce manual labor and energy consumption across large-scale production facilities.<\/p>\n<\/div>\n

\n

Crop Farming and Seeding<\/h3>\n

The CMN190-R3 is a core component for uniform fertilizer and seed application across grain, vegetable, and fruit cropland. The controlled output RPM and torque ensure that spinner discs or auger flights maintain consistent spread patterns regardless of variation in field terrain or material flow rate. Growers using variable-rate application technology benefit from the gearbox’s compatibility with electronic speed controllers, enabling zone-based nutrient management for optimal yield outcomes.<\/p>\n<\/div>\n

\n

Pasture and Livestock Farm Management<\/h3>\n

Livestock operations use fertilizer spreader gearboxe<\/strong><\/a>s to distribute organic waste, pelleted fertilizer, and pasture lime across grazing land. The high output torque of 1686 N\u00b7m at 368 RPM is well matched to large-capacity trailed spreaders that handle wet, heavy materials. Even coverage across pastures reduces nutrient hot spots and bare patches, improving forage yield and quality for cattle, sheep, and dairy herds while complying with nutrient management requirements in regulated farming regions.<\/p>\n<\/div>\n

\n

Lawn, Turf, and Sports Field Maintenance<\/h3>\n

Professional turf managers at golf courses, sports stadiums, and racetracks use compact fertilizer spreader equipment powered by agricultural gearboxes like the CMN190-R3 to apply granular fertilizer, top-dressing sand, and grass seed. The modular design allows these gearboxes to be fitted to lighter purpose-built turf spreaders, and the ability to customize output RPM through ratio selection lets operators match spread rate precisely to turf type and agronomic prescription.<\/p>\n<\/div>\n

\n

Horticulture and Greenhouse Nurseries<\/h3>\n

In greenhouse and nursery operations, smaller auger conveyors driven by this fertilizer distributor gearbox meter granular fertilizer and growth media from storage bins to potting lines and irrigation mixing tanks. The right-angle output configuration suits overhead conveyor arrangements that feed material downward into pots or raised beds, reducing manual handling labor in high-value plant production facilities where precise nutrient dosing directly impacts crop uniformity and market grade.<\/p>\n

Distributie van bodemverbeteraars<\/h3>\n

Agricultural lime, gypsum, compost, and other bulk soil amendments are effectively distributed using the CMN190-R3 in trailed or mounted spreader frames. The 88 HP rating and cast iron durability handle the abrasive nature of lime and calcium-based amendments that rapidly wear inferior gearbox housings and seals. Operators applying soil amendments for pH correction or drainage improvement across large field areas benefit from the gearbox’s consistent torque output, which prevents auger stall when material bridges inside the hopper.<\/p>\n

\n

Agricultural Auger Conveyor Systems<\/h3>\n

Designed for high-capacity grain, fertilizer, and feed conveying in farm settings, the CMN190-R3 integrates with tractor PTO systems or standalone motors to drive horizontal and inclined augers across silos, hoppers, and storage facilities. Its corrosion-resistant cast iron housing withstands fertilizer dust, humidity, and temperature swings typical of working farms and agri-processing plants, making it a long-term component for fixed and mobile conveying installations.<\/p>\n<\/div>\n

\n

Industrial Material Handling and Mixing<\/h3>\n

In industrial settings, the gearbox powers screw conveyors and mixing augers used for bulk material processing such as cement, chemical powders, and industrial aggregates. Modular shaft and flange options allow direct connection to rotary valves, batch mixers, and silo dischargers. With optional real-time sensor integration, operators can monitor load conditions and prevent jamming in automated production lines, improving safety and throughput in manufacturing and construction material facilities.<\/p>\n<\/div>\n<\/div>\n

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

Proper Maintenance of CMN190-R3 Fertilizer Distributor Gearbox<\/h2>\n

1. Check and Maintain Correct Oil Level
\nBefore each use and at regular weekly intervals during heavy-season operation, verify the fertilizer spreader gearbox oil level at the sight glass or dipstick port. Running the gearbox with insufficient oil causes elevated gear and bearing temperatures, accelerated wear, and eventual seizure. Use only the ISO VG grade specified in the product documentation; mixing different oil viscosities or types degrades the lubrication film and shortens service life. Keep the fill plug area clean before opening to prevent contamination.<\/p>\n

2. Schedule Periodic Oil Changes
\nReplace the gear oil at the manufacturer-recommended interval, typically at the first 50 hours of operation for new units to flush in any metallic break-in particles, then every 500 operating hours or annually for seasonal agricultural equipment, whichever comes first. Drain the old oil while the gearbox is warm to remove suspended wear debris more completely. Flush the housing with clean oil before refilling, and inspect the drained oil for unusual contamination such as water emulsification, dark carbonized particles, or metallic sheen.<\/p>\n

3. Inspect Shaft Seals Regularly
\nOil leakage at the input or output shaft exit points indicates lip seal wear or damage, which must be addressed promptly. Operating with a leaking seal allows fertilizer dust and moisture to enter the gear chamber, contaminating the oil and accelerating bearing wear from within. Replacement seals for the CMN190-R3 are standard sizes and can be sourced from local agricultural machinery suppliers. Always clean shaft surfaces carefully before fitting new seals to avoid cutting the new lip on machining burrs.<\/p>\n

4. Monitor Operating Temperature
\nTouch-test the gearbox housing periodically during operation. A correctly lubricated and loaded unit should feel warm but not painfully hot to a brief touch. Sustained high housing temperatures, above approximately 80 degrees C, indicate overloading, low oil, oil contamination, or bearing failure. If abnormal heat is detected, stop the machine, allow it to cool, and investigate the cause before resuming work. Persistent overtemperature will degrade gear and bearing surfaces within hours of continued operation.<\/p>\n

5. Keep the Breather Vent Clean
\nThe breather vent on the gearbox housing allows thermal pressure inside the casing to equalize as oil heats and cools. A blocked vent creates internal overpressure that forces oil past shaft seals even when the seals themselves are in good condition. In dusty field environments, breather mesh can become clogged with fine fertilizer or soil particles within a single season. Clean the breather at each oil change, or replace it with a fresh unit if the mesh cannot be cleaned adequately with compressed air.<\/p>\n

6. Check and Torque Mounting Bolts
\nVibration from the field and from the gear train itself can gradually loosen the M12 and M10 mounting hardware that secures the gearbox to the spreader frame. Check fastener torque at the start of each season and after the first 10 hours of operation on a new installation. Loose mounting bolts allow the gearbox to shift under load, misaligning the PTO driveline and creating shock loads on the input shaft splines that accelerate wear. Use thread-locking compound on fasteners that show repeated loosening.<\/p>\n

7. Clean Thoroughly After Each Season
\nAt the end of the spreading season, wash the gearbox exterior with low-pressure water to remove fertilizer salt deposits that cause corrosion on exposed surfaces and fasteners. Allow the housing to dry completely before storage, and apply a light coat of rust-preventive spray to unpainted cast iron areas and exposed shaft ends. Internal oil provides sufficient protection for the gear chamber during storage if the oil level is correct. Store the gearbox in a covered location away from direct UV exposure and freezing conditions.<\/p>\n

8. Listen for Unusual Noise During Operation
\nNew bearing failure, tooth surface spalling, and oil starvation each produce distinctive audible signatures before they result in complete mechanical failure. A low rumbling or growling sound that increases with RPM typically signals a failing bearing. A sharp repetitive clicking sound points to tooth damage or a foreign object in the gear mesh. Whining or whistling at specific speeds may indicate inadequate lubrication. Early detection through routine sound checks allows planned parts replacement rather than unscheduled field breakdowns at peak spreading time.<\/p>\n

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

Veelvoorkomende probleemoplossing<\/h2>\n
\n

Gearbox Making Unusual Noise<\/h3>\n

A low rumbling or growling sound that increases proportionally with PTO speed points to bearing failure, which occurs when the internal rolling elements develop fatigue spalling or the lubricant film breaks down. Repetitive clicking or knocking at a specific interval may indicate a chipped or broken gear tooth. Whining at moderate RPM often signals inadequate oil causing metal-to-metal contact. In all cases, stop the machine immediately, allow it to cool, drain and inspect the oil for metallic particles, and replace the affected component before returning the gearbox to field service.<\/p>\n<\/div>\n

\n

Oil Leaking from Shaft Seals<\/h3>\n

Oil weeping or dripping at the input or output shaft exit points means the lip seals have worn beyond their effective sealing range, have been damaged by a sharp edge on the shaft, or have hardened and cracked due to age and heat exposure. First check the breather vent to confirm it is clear; a blocked vent creates internal pressure that pushes oil past seals that would otherwise function correctly. If the vent is clear, replace the seals with the correct size nitrile lip seals, cleaning the shaft surfaces carefully to remove rust or burrs before fitting the new components.<\/p>\n<\/div>\n

\n

Oververhitting van de versnellingsbak<\/h3>\n

Excessive housing temperature occurs when the internal components are generating more friction heat than the housing surface area can dissipate. The most common causes are low oil level, wrong oil viscosity for the ambient temperature, overloading the gearbox beyond its 88 HP rating, or a failing bearing that has lost its rolling geometry and is generating heat through sliding contact. Check and correct the oil level first, then verify the PTO power demand does not consistently exceed rated capacity. If the problem persists after oil correction, disassemble and inspect the bearings for raceway damage or cage collapse.<\/p>\n<\/div>\n

\n

Shaft Spline Wear or Slippage<\/h3>\n

The 8x32x38x6 input spline profile and the 1-3\/8″ Z6 output spline are precision-machined contact interfaces that will wear prematurely if the coupling fit is loose or if the PTO shaft yoke is not fully seated before the locking collar is engaged. Spline wear shows as angular play at the coupling and a characteristic clunking noise when PTO power is suddenly engaged or disengaged. Once the spline teeth are worn beyond service limits, the affected shaft must be replaced. Prevent this by always confirming coupling engagement before engaging the PTO and by verifying that the PTO shaft stub dimensions match the gearbox specification.<\/p>\n<\/div>\n

\n

Vibration Transmitted to the Machine Frame<\/h3>\n

Abnormal vibration felt through the spreader frame and the tractor hitch typically originates from PTO shaft angle misalignment, loose gearbox mounting bolts, an out-of-balance spinner disc, or a damaged PTO shaft universal joint. Start by checking all M12 and M10 mounting fasteners and re-torquing them to specification. Then inspect the PTO shaft operating angles at both ends; angles exceeding the universal joint manufacturer’s limit cause cyclical velocity fluctuation that translates into vibration. Also check the spreader discs or auger flights for impact damage or material buildup that creates rotational imbalance.<\/p>\n<\/div>\n

\n

Gearbox Difficult to Turn by Hand<\/h3>\n

If the gearbox cannot be turned freely by hand when the PTO is disconnected, the cause is typically a seized bearing, a gear tooth fracture with debris lodging in the mesh, or severe oil starvation that has fused gear surfaces together. Attempting to power through this resistance with the tractor PTO engaged will cause rapid catastrophic failure and may damage the tractor PTO transfer case as well. Remove the gearbox from the machine, drain the oil, and disassemble to identify the seized or fractured component. In most cases involving seized bearings, all bearings in the unit should be replaced simultaneously since the thermal event that seized one likely damaged the others.<\/p>\n<\/div>\n

\n

Mounting Bolts Repeatedly Loosening<\/h3>\n

Fasteners that require repeated tightening during the spreading season indicate that the mounting surface is not rigid enough to prevent relative movement between the gearbox and the frame during operation. This movement generates fatigue cycling in the fasteners. Check the spreader frame at the mounting pad area for cracks, distortion, or worn bolt holes that allow the gearbox to rock. Apply a medium-strength thread-locking compound to the fastener threads after confirming the mounting surface is solid. If bolt holes in the frame have worn elongated, the frame will need repair before the gearbox can be reliably retained.<\/p>\n<\/div>\n

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

Versnellingsbak en aftakas van de kunstmeststrooier<\/h2>\n

The fertilizer spreader gearbox and the PTO drive shaft function as an inseparable mechanical pair in every tractor-powered spreading operation. The CMN190-R3 fertilizer spreader gearbox transfers rotational power from the tractor PTO to the spinner discs, augers, or agitators that distribute fertilizer, seed, or granular material across the field. Its 1.46:1 gear reduction steps the 540 RPM tractor PTO speed down to 368 RPM at the output, while simultaneously increasing torque from 1149 N\u00b7m to 1686 N\u00b7m. This torque amplification is what allows the gearbox to drive large augers through wet, dense, compacted materials without stalling. The sealed cast iron housing and precision bevel gears maintain this power transfer reliably across full working seasons without requiring daily attention beyond oil level monitoring.<\/p>\n

A PTO shaft, also called a power take-off shaft, is the mechanical drivetrain component that transfers rotational power from the tractor to the attached implement. Rather than requiring every piece of farm machinery to carry its own engine, the PTO shaft allows a single tractor to power a wide range of tools, including rotary tillers, flail mowers, balers, and fertilizer spreaders. The shaft consists of a telescoping steel tube assembly with universal cross-and-bearing joints at each end that accommodate the angular misalignment between the tractor and the moving implement, and a protective plastic or metal safety shield that covers the rotating shaft to prevent entanglement injuries.<\/p>\n

The PTO shaft connects the tractor’s rear PTO stub to the input shaft spline of the CMN190-R3 using the matching 8x32x38x6 spline profile. As the tractor engine runs and the PTO is engaged, rotational energy flows from the tractor crankshaft through the gearbox PTO transfer case into the PTO shaft, then into the fertilizer spreader gearbox input shaft. Inside the gearbox, the bevel gear set changes the rotation axis by 90 degrees and applies the 1.46:1 ratio, delivering 1686 N\u00b7m to the output shaft that drives the spreader’s distribution mechanism.<\/p>\n

Correct PTO shaft length is critical in this pairing. The shaft must be long enough to remain engaged at maximum hitch height and short enough to prevent metal-on-metal contact between telescoping sections at minimum height. A shaft that is too short can pull apart under field conditions, dropping the rotating assembly; one that is too long can telescope fully and transmit shock directly into the gearbox input bearings. Most fertilizer spreader manufacturers specify the correct PTO shaft length for each model, and the CMN190-R3’s 95 mm input shaft engagement zone accommodates standard Category 1 and Category 2 PTO coupling profiles.<\/p>\n

A slip clutch or shear bolt coupling is typically installed in the PTO-as<\/strong><\/a> assembly between the tractor and the gearbox. This overload protection device disconnects the drive train instantly if the spreader jams, protecting both the gearbox internal components and the tractor PTO from the massive torque spike that a sudden jam produces. For the CMN190-R3 operating at 1686 N\u00b7m output, correct slip clutch calibration is an important installation step that fertilizer spreader gearbox suppliers and OEM equipment builders should address during the initial machine commissioning process.<\/p>\n\n\n\n
\"CMN190-R3<\/td>\n\"PTO-as\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Versnellingsbak van een rotorkopeg versus versnellingsbak van een kunstmeststrooier<\/h2>\n
\n
\n

Wat is een tandwielkast voor een roterende snijder?<\/h3>\n

A rotary cutter gearbox is the core mechanical assembly inside rotary cutters and brush hogs used to mow tall grasses, clear vegetation, and shred crop residue. These units are built to absorb high shock loads generated when blades strike embedded rocks or dense woody stalks, making impact resistance and shear protection their primary design priority. The input shaft connects directly to the tractor PTO, and the gearbox redirects this power downward through a right-angle transfer to drive one or more horizontal blade shafts at cutting speed.<\/p>\n

Voordelen van een tandwielkast voor roterende maaiers<\/h4>\n
    \n
  • Shock Load Tolerance:<\/strong>\u00a0Heavy-walled castings and oversized shaft diameters absorb sudden impulse loads from blade strikes without cracking the housing or shearing internal components, a daily occurrence in brush clearing work.<\/li>\n
  • High Speed Output:<\/strong>\u00a0Gear ratios are selected to deliver blade speeds of 1,000 RPM or higher, producing the cutting velocity needed to shear thick stems cleanly and eject material from the deck without clogging.<\/li>\n
  • Slip Clutch Integration:<\/strong>\u00a0Most rotary cutter gearboxes are paired with a slip clutch or shear bolt coupling on the PTO driveline that disengages power instantly when a blade hits an immovable object, protecting the gearbox from catastrophic overload.<\/li>\n
  • Compact Form Factor:<\/strong>\u00a0The right-angle design keeps the gearbox low-profile within the cutter deck, maintaining ground clearance and reducing center of gravity for stable operation on slopes.<\/li>\n<\/ul>\n

    Toepassingen van de tandwielkast van de roterende snijder<\/h4>\n
      \n
    • Roadside and Pasture Mowing:<\/strong>\u00a0Municipal road departments and ranchers use rotary cutter gearboxes to maintain right-of-way vegetation and control pasture weeds cost-effectively across large areas.<\/li>\n
    • Crop Residue Management:<\/strong>\u00a0After harvest, rotary cutters shred corn stalks, sunflower stalks, and sorghum stubble to accelerate field decomposition and prepare for the next planting season.<\/li>\n
    • Orchard Floor Management:<\/strong>\u00a0In orchards, low-profile rotary cutters with compact gearboxes mow cover crops and grass aisles between tree rows where equipment clearance is limited.<\/li>\n
    • Land Clearing:<\/strong>\u00a0Heavy-duty rotary cutter gearboxes rated above 150 HP handle initial clearing of brushy land, saplings, and dense vine growth in land development or farm expansion operations.<\/li>\n<\/ul>\n<\/div>\n
      \n

      Wat is een versnellingsbak voor een kunstmeststrooier?<\/h3>\n

      A fertilizer spreader gearbox, also called a fertilizer distributor gearbox, is an agricultural gearbox specifically engineered to transmit power from the tractor PTO to the spinning discs, augers, or beaters that evenly distribute granular or bulk material across fields. Unlike cutting gearboxes, fertilizer spreader gearboxes prioritize consistent torque delivery, corrosion resistance against fertilizer compounds, and gear ratios tuned to the rotational requirements of spreading mechanisms rather than blade cutting speeds. They form the mechanical core of spreaders used in crop farming, pasture management, turf care, and soil amendment application.<\/p>\n

      Voordelen van een versnellingsbak voor kunstmeststrooiers<\/h4>\n
        \n
      • Corrosiebestendigheid:<\/strong>\u00a0Cast iron housings with sealed chambers and nitrile lip seals protect internal components from the highly corrosive ammonium nitrate, urea, and potassium chloride compounds that rapidly attack unprotected steel.<\/li>\n
      • Torque Multiplication:<\/strong>\u00a0Gear reductions that multiply tractor PTO torque provide the sustained force needed to move large quantities of dense wet material without mechanical stall or material bridging in the hopper.<\/li>\n
      • Multi-Output Flexibility:<\/strong>\u00a0Many fertilizer spreader gearboxes like the CMN190-R3 support multiple output configurations to drive several auger or spinner assemblies simultaneously from a single PTO input.<\/li>\n
      • Variable Rate Compatibility:<\/strong>\u00a0Optimized gear ratios and sensor-compatible designs allow integration with GPS variable-rate application controllers that adjust spread rate by field management zone.<\/li>\n<\/ul>\n

        Toepassingen van de versnellingsbak van de kunstmeststrooier<\/h4>\n
          \n
        • Granular Fertilizer Application:<\/strong>\u00a0These gearboxes power disc spreaders and auger spreaders applying NPK fertilizer, urea, and compound granules to arable cropland at precise agronomic rates.<\/li>\n
        • Organic Waste and Manure Spreading:<\/strong>\u00a0High-torque fertilizer gearboxes drive the floor conveyors and distribution beaters inside large organic waste spreaders handling wet, heavy livestock slurry and solid manure.<\/li>\n
        • Lime and Soil Amendment Distribution:<\/strong>\u00a0Bulk agricultural lime, dolomite, and gypsum are distributed via auger spreaders fitted with these gearboxes for soil pH correction across large farm areas.<\/li>\n
        • Seed Spreading:<\/strong>\u00a0Grass seed, winter cover crop seed, and wildflower mixtures are broadcast with fertilizer-type spreaders fitted with agricultural gearboxes configured for the lighter disc or fan spreading mechanisms.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n

          Vergelijking naast elkaar<\/h3>\n
          \n\n\n\n\n\n\n\n\n\n\n\n\n
          Functie<\/th>\nTandwielkast van de roterende snijder<\/th>\nVersnellingsbak voor kunstmeststrooier<\/th>\n<\/tr>\n<\/thead>\n
          Primaire functie<\/td>\nDrive high-speed cutting blades<\/td>\nDrive augers, discs, or beaters for material distribution<\/td>\n<\/tr>\n
          Typische overbrengingsverhouding<\/td>\n1:1.5 to 1:2 (speed increase)<\/td>\n1.2:1 to 2:1 (speed reduction, torque increase)<\/td>\n<\/tr>\n
          Output RPM Priority<\/td>\nHigh speed (1000+ RPM)<\/td>\nControlled torque output<\/td>\n<\/tr>\n
          Behuizingsmateriaal<\/td>\nHeavy cast iron or ductile iron<\/td>\nCast iron with corrosion-resistant sealing<\/td>\n<\/tr>\n
          Shock Load Design<\/td>\nPrimary design priority<\/td>\nSecondary; sustained torque is primary<\/td>\n<\/tr>\n
          Corrosiebestendigheid<\/td>\nStandard agricultural paint finish<\/td>\nEnhanced sealing against fertilizer compounds<\/td>\n<\/tr>\n
          Typical HP Range<\/td>\n40 to 200+ HP<\/td>\n20 to 100 HP (CMN190-R3: 88 HP)<\/td>\n<\/tr>\n
          Variable Rate Integration<\/td>\nRarely required<\/td>\nCommon in precision agriculture<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

          \"Onderdelen<\/p>\n

          Waarom kiezen voor de kunstmeststrooier-versnellingsbakken van CMN Transmission?<\/h2>\n

          Established in 2000 in Ansan-si, Gyeonggi-do, Korea, CMN Transmission has spent over two decades refining the manufacturing processes for agricultural gearboxes. The depth of experience accumulated across rotary cutter, baler, fertilizer spreader, and harvesting gearbox programs gives CMN engineers practical insight into the real-world failure modes and performance requirements that buyers in the global agricultural machinery market face every season. With over 100 factory employees and annual output exceeding 500,000 units across all gearbox categories, CMN Transmission has the production depth to serve both small-volume buyers and large OEM accounts simultaneously. Consistent capacity means delivery commitments are reliably met without the long lead times or minimum order inflexibility that smaller manufacturers impose on international buyers.<\/p>\n

          CMN’s product catalog covers nearly a thousand specifications across rotary cutter gearboxes, rotary tiller gearboxes, feed mixer gearboxes, rotary mower gearboxes, flail mower gearboxes, post hole digger gearboxes, round and square baler gearboxes, disc mower gearboxes, silage machine gearboxes, combine harvester gearboxes, and more. Buyers managing multiple machine types in their product line benefit from a single qualified supplier relationship covering a broad specification range. CMN Transmission’s fertilizer spreader gearboxes are used in farming operations across North America, South America, Europe, Oceania, and Asia. Active export experience in the United States, Canada, Mexico, Brazil, Argentina, France, Germany, Italy, Spain, the UK, Russia, India, Thailand, Vietnam, Turkey, Australia, and New Zealand means CMN understands import requirements, documentation standards, and technical specifications needed for different regional markets.<\/p>\n

          CMN accepts production to customer drawings and specifications for agricultural gearboxes, PTO shafts, U-joints, yokes, tubes, torque limiters, couplings, bearings, blades, chains, and sprockets. The engineering team provides design-for-manufacturability feedback, tooling development, prototype sampling, and first-article inspection before full production launch. This capability makes CMN a genuine product development partner for equipment manufacturers, not just a parts supplier. All CMN Transmission products are manufactured under CE and ISO 9001:2015 certified quality management systems. This certification means every production batch of fertilizer spreader gearboxes goes through documented inspection checkpoints covering dimensional accuracy, material certification, surface treatment, and functional load testing before shipment. Buyers can request quality documentation and inspection reports as part of the order process.<\/p>\n

          \"Fabrikanten<\/p>\n

          Veelgestelde vragen<\/h2>\n

          Q: What is the correct oil type and fill volume for the CMN190-R3 fertilizer spreader gearbox?<\/strong>
          \nA: The CMN190-R3 is designed for use with ISO VG 220 gear oil, which is the standard viscosity for right-angle agricultural gearboxes operating in the 0 to 40 degree C ambient temperature range. In very cold climates where starting temperatures drop below minus 15 degrees C, an ISO VG 150 grade reduces cold-start viscosity resistance. The fill volume for this size housing is approximately 0.8 to 1.0 liters; always fill to the center of the sight glass or dipstick mark rather than by volume alone, as housing orientation can affect how volume translates to actual sump depth. CMN’s technical team can confirm the exact fill specification for your mounting orientation if it deviates from standard.<\/p>\n

          Q: What is the actual fertilizer spreader gearbox ratio and how does it affect spreading performance?<\/strong>
          \nA: The CMN190-R3 has a 1.46:1 reduction ratio, meaning for every 1.46 revolutions of the input shaft (tractor PTO), the output shaft completes one full revolution. At the standard 540 RPM PTO speed, this produces 368 RPM at the output. For auger spreading applications, this output speed range is well matched to most commercial horizontal and vertical auger designs operating at their optimal material conveyance speed. Operators needing a different output RPM for specialized auger sizes or material flow rates can request a customized ratio; CMN Transmission offers alternative ratios within the same housing platform through tooling modifications.<\/p>\n

          Q: What PTO shaft and coupling specifications are compatible with the CMN190-R3 input shaft?<\/strong>
          \nA: The CMN190-R3 input shaft uses an 8x32x38x6 involute spline, which corresponds to a 38 mm major diameter with 8 teeth and a 6-degree pressure angle. This is compatible with standard 1-3\/8″ 6-spline (Z6) PTO shaft yokes used throughout North America and Europe in the 540 RPM PTO standard. The output shaft also uses a 1-3\/8″ Z6 six-spline profile for the driven side. Before ordering, confirm the yoke bore in your existing PTO shaft matches this specification; 1-3\/8″ 21-spline profiles are a different standard and require an adapter. CMN can supply the gearbox with modified shaft specifications if your driveline uses a non-standard coupling profile.<\/p>\n

          Q: Can the CMN190-R3 be used with a horizontal three-auger or four-auger fertilizer spreader configuration?<\/strong>
          \nA: Yes. The CMN190-R3 is designed specifically to serve as the central drive gearbox for multi-auger spreader configurations, including vertical double-auger, vertical four-auger, horizontal three-auger, and horizontal four-auger layouts. In multi-auger installations, the gearbox typically drives one or two primary auger sections directly from its output shaft, with secondary chain or gearbox linkages distributing power to the remaining auger sections. The right-angle output orientation is particularly suited to horizontal auger arrays where the auger shafts run perpendicular to the tractor’s direction of travel. Contact CMN’s engineering team with your specific auger spacing and torque requirements for mounting configuration guidance.<\/p>\n

          Q: What does the one-year warranty cover and how do I make a warranty claim?<\/strong>
          \nA: The CMN190-R3 warranty covers defects in materials and workmanship under normal operating conditions for 12 months from the verified date of delivery. This includes premature gear tooth failure not caused by overloading, bearing seizure not resulting from lubricant neglect, and casting defects. The warranty does not cover wear from abrasive contamination of the oil, damage from operating above the 88 HP rated input, seal failure caused by incorrect installation, or damage from incorrect oil type or level. To make a claim, contact CMN Transmission’s after-sales department with your purchase order reference, a description of the failure, and photographic evidence. Replacement parts or units are shipped to verified warranty cases upon confirmation.<\/p>\n

          Q: Are OEM and ODM customizations available, and what lead time should I expect?<\/strong>
          \nA: CMN Transmission supports both OEM supply with private labeling and ODM custom engineering for modified shaft dimensions, gear ratios, flange patterns, and housing configurations. Standard production units from stock are typically available within 15 to 25 business days for order quantities up to 20 units. Custom specifications with tooling modifications require 30 to 60 days depending on the extent of changes required and current factory loading. OEM private-label orders with custom packaging and documentation have a 20 to 35 day lead time once artwork is approved. Contact the sales team with your project specifications for a formal quotation and confirmed delivery schedule. Minimum order quantities for customized variants are flexible for established accounts.<\/p>\n

          Q: How do I check the fertilizer spreader gearbox oil level on the CMN190-R3?<\/strong>
          \nA: The fertilizer spreader gearbox oil level should be checked with the gearbox at rest in its normal installed orientation and with the oil at approximately ambient temperature. Locate the oil level check port or sight glass on the side of the housing. The oil surface should be at or within 10 mm below the center of the sight glass or the fill port opening. If the level is low, add the specified ISO VG 220 grade through the fill plug on top of the housing, adding in small increments and rechecking between additions to avoid overfilling. Overfilling creates churning losses and elevated operating temperature. Check the level before every use during the first week of operation on a new or recently serviced gearbox.<\/p>\n

          Q: What is the difference between this agricultural gearbox for fertilizer spreaders and a general-purpose right-angle gearbox?<\/strong>
          \nA: Agricultural gearboxes for fertilizer spreader applications are specifically engineered for the duty cycle and environmental exposure of field use, which differs significantly from general industrial right-angle gearboxes. Key differences include nitrile lip seals rated for fertilizer compound exposure rather than standard mineral oil seals, mounting bolt patterns and housing geometries designed to integrate with spreader frame structures, input and output spline profiles matched to agricultural PTO standards, and gear ratios optimized for the 540 RPM PTO standard rather than arbitrary motor speeds. General industrial right-angle gearboxes can often deliver similar power ratings on paper but lack these field-specific design details, resulting in seal failures, incompatible shaft interfaces, and suboptimal gear ratios when applied to agricultural spreading equipment.<\/p>\n

          Q: Can I source individual fertilizer spreader gearbox parts for the CMN190-R3 without buying a complete unit?<\/strong>
          \nA: Yes, CMN Transmission can supply individual replacement fertilizer spreader gearbox parts for the CMN190-R3 including input shafts, output shafts, bevel gear sets, taper roller bearing kits, lip seal kits, breather vents, and mounting hardware sets. This parts availability is particularly valuable for distributors maintaining service inventory for machines already in the field. When ordering replacement parts, provide the CMN190-R3 model number and the specific component you need. For bearing replacements, the taper roller bearing part numbers fitted at factory can be obtained from CMN’s technical documentation on request, which allows sourcing from local bearing distributors as an alternative to ordering from CMN directly.<\/p>\n

          Q: Where can I find fertilizer spreader gearbox for sale with reliable OEM quality at competitive pricing?<\/strong>
          \nA: CMN Transmission supplies the CMN190-R3 and the broader range of fertilizer spreader gearboxes directly to importers, agricultural machinery manufacturers, equipment distributors, and service dealers in over 60 countries. Factory-direct supply eliminates intermediary margins, making the pricing significantly more competitive than equivalent units sourced through third-party distributors while maintaining the same CE and ISO 9001 certified manufacturing standards. Pricing is available on request for both standard production quantities and volume OEM orders. Sample units can be supplied to verified buyers for evaluation and integration testing before committing to a production order. Contact CMN’s export sales team through the inquiry form on this product page for a tailored quotation.<\/p>\n

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

          Klantenrecensies<\/h2>\n

          James Hoover, Dairy Farm, United States<\/strong>
          \n“We’ve been running four of the CMN190-R3 units on our large-frame manure spreaders for about 14 months now and honestly I wasn’t expecting this level of durability from an import gearbox at this price. We spread wet dairy manure almost daily from March through November, which is as hard as it gets on a gearbox. No seal leaks, no noise issues, nothing. Installation was pretty simple once we matched the 1-3\/8″ Z6 output to our existing drivelines. Would have given it five stars sooner if I’d known.”<\/p>\n

          Brendan Calloway, Crop Farming, Canada<\/strong>
          \n“Ordered three CMN190-R3 gearboxes for a batch of custom auger spreaders we build here in Saskatchewan. The ratio spec was exactly what we needed for our 540 PTO output setup, and the cast iron quality was noticeably heavier and better finished than the previous brand we sourced from. CMN’s technical team actually responded to my mounting dimension questions the same day, which doesn’t happen with most overseas suppliers. Delivery to Canada was faster than I expected. Going to make this our standard spec for this product line.”<\/p>\n

          Ricardo Venegas, Grain Farming, Mexico<\/strong>
          \n“I bought four CMN190-R3 units for a line of fertilizer spreaders that we manufacture for the local market. The 1.46:1 transmission ratio was ideal for the augers of our design. The cast iron housing is solid and the finish of the internal gears is of high quality. The after-sales support was very good; they sent us the complete technical documentation without any problems. After 8 months of field use, no failures have been registered. I would recommend it to any agricultural machinery manufacturer in Latin America.”<\/p>\n

          Fabio Rodrigues, Soybean Farming, Brazil<\/strong>
          \n“We tested the CMN190-R3 on our high-capacity fertilizer spreaders used in soybean fields in Mato Grosso. The 1686 N.m output torque was decisive for working with high specific weight fertilizers without clogging the auger system. We initially bought a batch of 10 units and have already closed our second order of 18 units. The direct factory price represents real savings compared to equivalent European brands. Robust packaging, no damage upon arrival. A partnership that is here to stay.”<\/p>\n

          George Hathaway, Agricultural Machinery, United Kingdom<\/strong>
          \n“I represent a machinery reseller network covering the UK, Ireland, and parts of Scandinavia. We’ve placed CMN190-R3 gearboxes into spreader refurbishment projects for three different end users over the past season and the feedback has been consistent: good build, good performance, no early failures. One client specifically commented that the oil seal quality was better than what came on the original OEM gearbox that was being replaced. The 1-3\/8″ Z6 output spline fits all the standard PTO shaft couplings used in this market without any adapter needed. Pricing is very competitive for the specification.”<\/p>\n

          Klaus Bergmann, Crop Farming, Germany<\/strong>
          \n“We use the CMN190-R3 in our line of grassland spreaders and are very satisfied after six months of field operation. The workmanship of the gearbox housing is solid, the gearing runs smoothly, and the oil level is still in the green zone after the first service. CMN’s technical support was competently accessible in English and quickly answered our questions about the flange configuration. For a price-performance comparison with European manufacturers, this gearbox is absolutely competitive. We plan to include it in our standard line.”<\/p>\n

          Craig Whitmore, Wheat Farming, Australia<\/strong>
          \n“I’ll be straight about it. I was hesitant about the lead time shipping from Korea to our workshops in New South Wales but the freight coordinator at CMN kept me updated every step of the way and it arrived two days earlier than estimated. We fitted two of these to a rebuilt twin-auger fertilizer box going onto a 150 HP tractor. After the first full seeding run, about 900 hectares of wheat country, both gearboxes are running without any dramas. The input shaft splines engaged perfectly with our PTO shaft yokes. Quality control clearly happens before these things leave the factory.”<\/p>\n

          Matias Fernandez, Soybean and Corn Farming, Argentina<\/strong>
          \n“We have used the CMN190-R3 for a full season on granular fertilizer spreaders in soybean and corn fields in the province of Buenos Aires. The performance has been very satisfactory. The output torque of 1686 N\u00b7m is more than enough for our 40 cm diameter horizontal augers at maximum load. The housing finish is neat and the seals have not shown any leaks. The one-year warranty offered by CMN also gives us the confidence to include it in our offering to end customers. Highly recommended without a doubt.”<\/p>\n

          Lorenzo Martinelli, Vineyard Management, Italy<\/strong>
          \n“We ordered six CMN190-R3 units to integrate into our horizontal screw fertilizer spreaders destined for the viticulture market in Northern Italy. The 1.46:1 transmission ratio fits well with our design specifications and the quality of the cast iron is evident to the touch. The response times of the CMN sales team were fast and precise, with complete technical documentation provided before the order. After the first season of use, the gearboxes are working without problems. We expect to increase the order volume for next year.”<\/p>","protected":false},"excerpt":{"rendered":"

          The CMN190-R3 is a right-angle agricultural gearbox built to drive auger-based fertilizer spreading and material conveying systems. It connects to a tractor’s 540 RPM PTO via the input shaft and transfers rotational power through precisely machined internal gearing to drive vertical or horizontal auger arrangements. Whether integrated into vertical double-auger configurations, vertical four-auger assemblies, horizontal three-auger setups, or horizontal four-auger spreaders, this fertilizer spreader gearbox adapts to a wide spectrum of machine designs and operational demands.<\/p>","protected":false},"featured_media":8040,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[309],"product_tag":[316,315,311,317,318,319,310],"class_list":{"0":"post-8288","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\/nl\/wp-json\/wp\/v2\/product\/8288","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/comments?post=8288"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/media\/8040"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/media?parent=8288"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/product_brand?post=8288"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/product_cat?post=8288"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/nl\/wp-json\/wp\/v2\/product_tag?post=8288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}