कॉमर एल-25ए गियरबॉक्स के लिए एल-25ए उर्वरक स्प्रेडर गियरबॉक्स अनुपात 1:2.78 का प्रतिस्थापन।

The L-25A Fertilizer Spreader Gearbox Ratio 1:2.78, a direct replacement for the Comer L-25A Gearbox, is also widely known as a fertilizer distributor gearbox. It is an essential component of agricultural machinery, specifically engineered for soil preparation, crop treatment, and fertilizer spreading. Positioned at the center of the machine, it transmits power from the tractor's power take-off (PTO) to the spinning discs or augers that evenly distribute fertilizer across the fields. Engineered for durability and reliability, this agricultural gearbox ensures consistent power transmission to meet varying operational demands throughout the growing season.

Equipped with precision bevel gears and hardened shafts enclosed in a lightweight yet robust aluminium housing, this gearbox for fertilizer spreader maintains a fixed 1:2.78 ratio at up to 540 RPM input speed, delivering up to 31 N·m of output torque with a maximum power rating of 5.2 kW (7 HP). The compact 4.1 kg design fits seamlessly into a wide range of spreader platforms, from compact mowers and band saws to large-scale chemical fertilizer spreaders. Whether you operate across flat arable fields, sloped pastures, orchards, or row-crop systems, this fertiliser spreader gearbox provides the mechanical backbone your operation depends on for precise, consistent performance in all conditions.

तकनीकी मापदंड

हमने एसजीएस/टीयूवी राइनलैंड द्वारा समर्थित तृतीय-पक्ष आपूर्तिकर्ता ऑडिट और कंपनी सत्यापन पूरा कर लिया है। यह सत्यापन खरीदारों को कंपनी की पहचान, व्यावसायिक संचालन, आपूर्तिकर्ता प्रोफ़ाइल और सामान्य विनिर्माण क्षमता की समीक्षा करने में मदद करता है। ऑर्डर की आवश्यकताओं के अनुसार उत्पाद-विशिष्ट निरीक्षण रिपोर्ट, सामग्री दस्तावेज़ या अनुपालन रिकॉर्ड प्रदान किए जा सकते हैं।

न्यूनतम ऑर्डर मात्रा (एमओक्यू): उत्पाद के प्रकार और ऑर्डर की राशि के आधार पर इसे लचीले ढंग से निर्धारित किया जा सकता है।

उदाहरण: नए ग्राहक उचित परिस्थितियों में 1-5 नमूने मंगवा सकते हैं।

मिश्रित ऑर्डर: विभिन्न मॉडलों को संयोजित करना समर्थित है; कुल ऑर्डर राशि लगभग 1,500 तक पहुंचनी चाहिए।

छोटे ऑर्डर: 1-2 पीस से शुरू होने वाले ऑर्डर स्वीकार किए जाते हैं, लेकिन प्रति यूनिट कीमत अपेक्षाकृत अधिक होगी।

समय सीमा: मानक पुर्जों के लिए 10-25 कार्यदिवस; अनुकूलित घटकों के लिए 20-45 कार्यदिवस; परियोजना-आधारित उपकरणों के लिए 45-120 कार्यदिवस।

व्यापार के नियम: EXW, FOB, CIF और DAP आम तौर पर मान्य हैं; FCA, CFR, CPT, CIP और DDP शर्तों पर विशेष रूप से बातचीत की जा सकती है।

एल-25ए उर्वरक स्प्रेडर गियरबॉक्स के आयाम

Benefits of the L-25A Fertilizer Spreader Gearbox 1:2.78

1. Enhanced Precision Distribution
The fixed 1:2.78 ratio ensures repeatable, calibrated rotational output at every PTO cycle, enabling uniform fertilizer distribution across the spread width. Consistent output speed eliminates hot spots and skip zones, directly reducing over-application. Over a full season, precision spreading translates to measurable savings on input costs while protecting soil health from nutrient imbalance.

2. Industrial-Grade Durability
The aluminium housing resists corrosion from fertilizer chemicals, moisture, and field debris without the weight penalty of cast iron. Internal components are precision-machined from hardened steel, with oil seals and sealed bearings that block dust and water ingress. This fertilizer spreader gearbox is built to endure thousands of operating hours across multiple growing seasons in the harshest field conditions.

3. Optimized Fuel Efficiency
Precision gear meshing and oil-bath lubrication minimize internal friction losses, ensuring that nearly all of the tractor's PTO power reaches the spreading mechanism. The result is lower engine load at equivalent spreading speeds. Farmers operating large acreage report measurable reductions in fuel burn per hectare compared to worn or poorly-matched agricultural gearbox alternatives, improving the economics of each spreading pass.

4. व्यापक अनुप्रयोग क्षमता
Compatible with granular NPK blends, pelleted urea, lime prills, organic compost, and various seed spreader configurations, this agricultural gearbox for fertilizer spreader adapts to diverse material types and terrain profiles. Its standard 1-3/8" six-spline PTO connection and 22 mm output shaft accept a wide range of spreader disc assemblies, making it a true all-round solution for mixed-crop farms and diversified operations.

5. कम रखरखाव की आवश्यकता
The oil-bath lubrication system bathes all gears and bearings in a continuous film of 80W-90 gear oil, eliminating grease nipple schedules and reducing service visits. With the first oil change required only at 50-70 hours and subsequent intervals at 500 hours or annually, maintenance demands are minimal. Modular design means individual fertilizer spreader gearbox parts such as seals and bearings are readily replaceable without full gearbox removal.

6. Direct Comer L-25A Compatibility
Engineered as a bolt-on replacement for the original Comer L-25A gearbox, this unit matches OEM mounting dimensions, shaft diameters, and spline counts precisely. Operators can swap in the CMN Transmission L-25A without modifying spreader frames, PTO drivelines, or disc mounts. This compatibility cuts machine downtime during the critical spreading season, making it the preferred choice for fleet managers seeking cost-effective, reliable spares from trusted उर्वरक फैलाने वाले गियरबॉक्स manufacturers.

Working Principle

The power transmission sequence begins at the tractor's PTO output shaft, which rotates at the industry-standard 540 RPM. The PTO driveline connects to the gearbox input shaft via a 1-3/8" six-spline coupling, locking the two shafts together securely. This standard interface ensures compatibility across a wide range of tractor brands and models. As the tractor engine engages the PTO, rotational energy flows continuously through the coupling into the L-25A gearbox input shaft, starting the entire power conversion process. The input shaft is supported by precision-grade bearings that manage both radial and axial loads generated during field operation.

Once inside the housing, input torque passes through a matched pair of precision-cut bevel gears at the heart of this fertilizer distributor gearbox. The 1:2.78 gear ratio increases rotational speed from the 540 RPM tractor PTO to an output of approximately 1,501 RPM, which is ideal for driving centrifugal spreading discs at the speed needed for accurate lateral distribution of granular or pelleted fertilizers. Bevel gear geometry also changes the torque direction by 90 degrees in some configurations, allowing the output shaft to be oriented perpendicular to the input. The gear mesh is optimized for quiet, low-vibration operation even at maximum load.

The output shaft, measuring 22 mm in outside diameter, transmits up to 31 N·m of torque directly to the spinner disc assembly or agitator mechanism mounted on the spreader frame. This torque level is engineered specifically for the resistance forces encountered when accelerating fertilizer granules from the disc surface at the spreading speed required for uniform lateral distribution across swath widths of several meters. The output shaft is supported by a heavy-duty sealed bearing that withstands both the continuous rotational load and the intermittent shock loads caused by uneven fertilizer flow or material bridging in the hopper. Stable output speed ensures repeatable spreading patterns run after run.

The aluminium housing is partially filled with 80W-90 gear oil to a maximum capacity of 0.35 litres. As the gears rotate, they carry a continuous film of oil across all contact surfaces, reducing friction, dissipating heat, and extending component life far beyond what grease-packed alternatives can achieve. The oil-bath system requires no external pump and operates silently under all load conditions. The correct fertilizer spreader gearbox oil level should be verified before each spreading season and after the first 50-70 hours of operation. Subsequent oil changes at 500-hour or annual intervals keep the lubrication film in peak condition and prevent accelerated gear and bearing wear caused by degraded lubricants.

High-quality lip seals fitted to both input and output shaft bores prevent fertilizer dust, field debris, and moisture from entering the gearbox interior. Fertilizer chemicals, particularly nitrogen-based compounds and lime, are highly corrosive when in contact with unprotected metal surfaces. The dual-lip seal design maintains positive exclusion of contamination even during prolonged operation in dusty conditions or when the spreader is washed down with high-pressure water. The aluminium housing itself provides inherent corrosion resistance, and an epoxy-coated finish further protects external surfaces. Together, these measures ensure the gearbox interior remains clean, dry, and properly lubricated throughout its service life.

In field conditions, foreign objects, hopper blockages, or disc jamming can cause sudden torque spikes that would otherwise damage internal gears or the tractor driveline. The L-25A gearbox is designed to operate within its rated 5.2 kW / 31 N·m envelope, and is typically paired with an upstream PTO shaft fitted with a slip clutch or shear bolt safety device. When torque exceeds the preset limit, the slip clutch disengages momentarily, preventing the overload impulse from reaching the gearbox. This protective pairing between the fertilizer spreader gearbox and the PTO safety device safeguards the most expensive drivetrain components and minimizes costly downtime during peak-season spreading operations.

उर्वरक फैलाने वाले गियरबॉक्स के अनुप्रयोग

How to Correctly Replace the L-25A Gearbox

1. Safety Preparation and Machine Isolation
Before beginning any gearbox removal work, disengage the tractor PTO and shut down the tractor engine completely. Apply the parking brake, remove the ignition key, and wait for all rotating components to come to a full stop. Place wheel chocks under tractor wheels and spreader axle. Disconnect the PTO driveshaft from both the tractor output and the gearbox input. This full isolation procedure prevents accidental PTO engagement during the removal process, which could cause severe injury.

2. पुराने गियरबॉक्स का तेल निकाल दें
Position a suitable drain pan beneath the old gearbox. Remove the oil drain plug (typically at the lowest point of the housing) and allow all gear oil to drain completely. Proper oil disposal in accordance with local environmental regulations is required. Draining before removal prevents spillage on the spreader frame and into the soil. Note the condition and color of the drained oil, as excessive contamination or metal particles indicate internal wear that may have contributed to gearbox failure.

3. Remove the Spreading Disc or Output Coupling
Using appropriate spanners, remove the retaining nut or bolt securing the spreading disc, vane assembly, or output coupling to the gearbox output shaft. Mark the disc position relative to the shaft before removal if a keyway or splined connection is used, to ensure correct angular alignment during reinstallation. Set the disc and all fasteners aside in a clean location. Inspect the output shaft bore for signs of fretting, corrosion, or wear caused by a loose disc connection on the previous unit.

4. Unbolt and Remove the Old Gearbox
Support the old gearbox weight manually or with a suitable support stand before removing the mounting flange bolts. Undo each mounting bolt in a diagonal sequence to release clamping load evenly. Once all bolts are removed, slide the gearbox forward to disengage it from any locating dowels or the spreader frame boss. Clean the mounting face on the spreader frame thoroughly with a wire brush and rag, removing all traces of old gasket material, rust, and fertilizer residue before fitting the replacement unit.

5. Inspect PTO Driveline Components
Before installing the new L-25A gearbox, inspect the PTO driveshaft, safety shield, slip clutch, and cross-joint assembly for wear or damage. Replace any worn universal joints, cracked guards, or slipping clutch discs. Installing a new gearbox onto a worn driveline transfers vibration and shock loads into the new unit, accelerating bearing and gear wear. This inspection step is especially important if the previous gearbox failed due to overload, as the PTO driveline is often damaged in the same event.

6. Install and Torque the New L-25A Gearbox
Position the new CMN Transmission L-25A gearbox onto the clean spreader frame mounting face, aligning the flange holes and any locating dowels. Apply a thin film of anti-seize compound to the mounting bolt threads to prevent future corrosion-induced seizure. Insert all mounting bolts and tighten them in a diagonal sequence to the manufacturer-specified torque (typically 25-35 N·m for M8 grade 8.8 fasteners). Do not over-torque, as this can distort the aluminium flange and cause misalignment of the internal gear mesh.

7. Fill with Fresh 80W-90 Gear Oil
Remove the oil fill plug and pour SAE 80W-90 gear oil into the gearbox to the correct level, not exceeding the 0.35-litre maximum capacity. Use the oil level check plug to confirm the correct fertilizer spreader gearbox oil level before reinstalling the fill plug. Correct fill level is critical: overfilling causes seal blowout and leaks, while underfilling starves bearings and gears of lubrication, leading to rapid wear. Replace the fill plug and tighten firmly, then wipe away any spilled oil from the housing exterior.

8. Reconnect PTO and Run-In Check
Reattach the spreading disc and PTO driveshaft. Reconnect the PTO driveline, ensuring the safety shield is correctly positioned and secured. Start the tractor and engage PTO at idle speed (low RPM) for a 5-minute unloaded run-in period. Listen for abnormal noise and check for oil leaks at all seal points. After the run-in, shut down the tractor and re-inspect all mounting bolts for tightness. The first oil change should be scheduled at 50-70 operating hours to flush any assembly debris from the new gearbox before returning to normal service intervals.

Common Troubleshooting for the L-25A Fertilizer Spreader Gearbox

उर्वरक फैलाने वाले यंत्र का गियरबॉक्स और पीटीओ ड्राइव शाफ्ट

The relationship between the fertilizer spreader gearbox and the PTO shaft is the defining mechanical interface of any tractor-driven spreading system. The Power Take-Off (PTO) shaft is the conduit through which the tractor engine delivers rotational energy to the spreader. Typically operating at 540 RPM on agricultural tractors, the PTO shaft connects to the gearbox input via a splined coupling that must be matched in profile, diameter, and spline count for secure, lash-free power transfer. In the case of the L-25A, the input accepts a 1-3/8" six-spline shaft in accordance with ISO 500 standards, making it compatible with the vast majority of compact to mid-size agricultural tractors used worldwide.

The PTO shaft assembly itself consists of an inner and outer tube section that telescope to accommodate tractor-to-implement distance variation as the tractor turns and as suspension movement occurs during field travel. Universal joints at both ends of the PTO shaft absorb the angular misalignment between the tractor PTO output and the gearbox input. These joints must be maintained within the manufacturer's specified maximum operating angle to avoid vibration, noise, and premature joint wear. With the L-25A gearbox installed on a correctly dimensioned spreader hitch, the PTO driveline angle should remain below 15 degrees across the full range of tractor drawbar movement.

The fertilizer distributor gearbox serves three critical functions that the PTO shaft alone cannot perform. First, it increases rotational speed from 540 RPM PTO input to approximately 1,501 RPM at the output, matching the disc speed required for effective fertilizer throw and lateral distribution. Second, it redirects the rotational axis where required by the spreader geometry, allowing vertical disc mounting on horizontally-arranged PTO input systems. Third, it multiplies torque to provide the rotational force needed to overcome the inertia of heavy spreading discs loaded with granular material, especially during startup and when material flow rates are high.

Safety integration between the PTO shaft and the gearbox is equally important. Every PTO driveline must incorporate a slip clutch or shear bolt overload protection device positioned between the tractor output and the gearbox input. This device is calibrated to release torque when the spreader disc jams or encounters a blockage, preventing the impulse load from being transmitted back through the gearbox and into the tractor driveline. Without this protection, a single disc jam could fracture gear teeth, shear the input shaft, or damage the tractor transmission. CMN Transmission recommends using matched PTO shafts with pre-set slip clutches rated to the L-25A's 5.2 kW / 31 N·m working load when ordering replacement or new installation PTO driveline assemblies.

The PTO shaft guard or safety shield is a legal requirement in most countries and is an essential safety component that prevents operator contact with the rotating shaft. Both the PTO shaft guard and the gearbox input shield must be correctly fitted and secured at all times during PTO operation. Damaged or missing guards should be replaced before the machine is returned to service. CMN Transmission can supply compatible PTO shaft assemblies with CE-certified safety guards that are dimensionally matched to the L-25A gearbox input connection.

When sourcing a replacement PTO shaft for use with this agricultural gearbox for fertilizer spreader, the key specification parameters include overall collapsed and extended length (to suit the tractor-to-spreader hitch distance), the input and output yoke profiles (to match both the tractor PTO and the gearbox input splines), and the power rating of the slip clutch (which should match the maximum power rating of the L-25A, being 5.2 kW at 540 RPM). Pairing the correct PTO shaft with the L-25A gearbox ensures that the entire drivetrain from tractor to spreading disc operates as a matched, reliable system that delivers consistent spreading performance season after season.

Operators seeking both a replacement fertilizer spreader gearbox and a compatible PTO shaft assembly are encouraged to contact CMN Transmission directly. Our technical team can supply matched gearbox and PTO shaft packages configured to your specific tractor model, spreader type, and hitch geometry, eliminating the risk of dimensional or power-rating mismatches that could compromise both performance and equipment longevity in the field.

How to Select the Right Fertilizer Spreader Gearbox

1. Load Capacity and Power Rating
The gearbox must be rated for the full combined mechanical load of the fertilizer material weight, disc inertia, and spreading resistance under your specific operating conditions. The L-25A is rated at 5.2 kW and 31 N·m, which is appropriate for single-disc compact spreaders. For twin-disc or large-capacity hopper spreaders, evaluate whether a higher power rating from the CMN Transmission fertilizer spreader gearboxes range is required before ordering.

2. Gear Ratio and Spreading Speed
The fertilizer spreader gearbox ratio directly controls the disc rotational speed and therefore the lateral throw distance and spreading width. The 1:2.78 ratio of the L-25A is matched to standard 540 RPM PTO applications where a moderate disc speed is required for granular fertilizers across typical arable field widths. If your spreading prescription requires a different disc speed, CMN Transmission can advise on alternative ratio models from our agricultural gearbox catalogue.

3. Material and Build Durability
Fertilizer spreading environments are exceptionally corrosive due to the hygroscopic and reactive nature of common fertilizer compounds. Aluminium housings, as used in the L-25A, provide excellent corrosion resistance at lower weight than cast iron. Internal gears and shafts should be case-hardened alloy steel with precision-ground tooth profiles. Verify that any fertilizer spreader gearbox under consideration uses sealed bearings and chemical-resistant shaft seals before purchasing.

4. Dimensional Compatibility
For replacement applications, ensure that the replacement gearbox matches OEM mounting dimensions, flange bolt pattern, input spline size, and output shaft diameter exactly. The L-25A Comer replacement from CMN Transmission is dimensionally matched to the original Comer gearbox, ensuring bolt-on installation without frame modification. For new spreader builds, share your frame drawing and shaft requirements with our fertilizer spreader suppliers team for a confirmed fitment check.

5. Maintenance Accessibility
A gearbox that is difficult to service in the field will accumulate deferred maintenance, shortening service life and increasing total ownership cost. The L-25A features accessible oil fill and drain plugs, a simple oil-bath lubrication system requiring only periodic oil changes, and modular seal and bearing components that are widely available from CMN Transmission. When comparing fertilizer spreader gearbox manufacturers, always evaluate the availability and cost of wear parts before making a purchasing decision.

CMN ट्रांसमिशन के फर्टिलाइजर स्प्रेडर गियरबॉक्स क्यों चुनें?

Korea CMN Transmission Co., Ltd. was established in 2000 and is headquartered in Sandan-o, Danwon-gu, Ansan-si, Gyeonggi-do, Republic of Korea. With over 100 factory employees dedicated exclusively to the R&D, manufacturing, sales, and after-sales service of agricultural gearboxes, CMN Transmission has built more than two decades of specialized expertise in the exact category of products that farmers and OEMs depend on. Our engineering team understands the unique demands of agricultural PTO drivelines and designs every gearbox, including our fertilizer spreader gearbox range, to perform reliably across thousands of field hours.

CMN Transmission exports to over 60 countries across six continents, including the United States, Canada, Mexico, Brazil, Argentina, France, Germany, Italy, Spain, the United Kingdom, Russia, India, Thailand, Vietnam, Turkey, Australia, New Zealand, and many more agricultural markets worldwide. Our logistics infrastructure supports both small emergency single-unit shipments via express air freight and high-volume OEM supply chain deliveries by sea. As one of the leading fertilizer spreader suppliers globally, we maintain inventory for rapid fulfilment of standard model orders.

With an annual production output exceeding 500,000 gearbox units across all product lines, CMN Transmission delivers the production scale that OEM manufacturers and large agricultural machinery distributors require. Our manufacturing processes are governed by ISO 9001 quality management certification, Environmental Management certification, and Occupational Health and Safety certification. CE marking is applied to all applicable products, confirming compliance with European machinery safety directives for customers in EU and EEA markets.

Beyond fertilizer spreader gearboxes, CMN Transmission's catalogue covers rotary cutter gearboxes, rotary tiller gearboxes, feed mixer gearboxes, rotary mower 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, corn header gearboxes, and cutting bar gearboxes, covering nearly one thousand specifications in total. This breadth means agricultural machinery builders can source multiple gearbox types from a single, trusted technical partner.

CMN Transmission provides pre-sale application engineering support to help customers select the correct gearbox ratio, shaft configuration, and power rating for their specific machine. Our team can supply dimensional drawings, CAD data, and technical data sheets to support machine design and procurement decisions. For OEM applications requiring custom gear ratios, modified shaft dimensions, or non-standard mounting configurations, our engineering team manages the development process from specification to production. We work collaboratively with machine designers to ensure every custom agricultural gearbox for fertilizer spreader application performs to specification from first installation.

CMN Transmission's fertilizer spreader gearboxes and broader agricultural gearbox range are used as original equipment by machinery manufacturers across Europe, the Americas, and Asia. Our combination of consistent dimensional accuracy, certified quality management, competitive pricing, and global logistics capability makes us the preferred choice for purchasing managers seeking reliable long-term supply partnerships. Whether you are a single farmer sourcing a replacement gearbox, a regional dealer stocking service parts, or a major OEM requiring annual supply agreements, CMN Transmission has the infrastructure and expertise to meet your needs every season.

अक्सर पूछे जाने वाले प्रश्नों

Q: Is this L-25A gearbox a direct drop-in replacement for the original Comer L-25A?
A: Yes. This CMN Transmission L-25A is engineered as a precise dimensional replacement for the Comer L-25A gearbox. The mounting flange bolt pattern, input spline specification (1-3/8" six-spline), output shaft diameter (22 mm), and overall housing dimensions are matched to the Comer OEM unit. In most cases, installation requires only unbolting the old unit and bolting on the new one without any frame modification or adapter plates. If you have a non-standard Comer variant, please share your machine serial number with our technical team for confirmation before ordering.

Q: What type and quantity of oil does the L-25A fertilizer spreader gearbox require?
A: The L-25A requires SAE 80W-90 mineral gear oil, with a maximum fill capacity of 0.35 litres. All gearboxes are supplied dry (without oil), so you must fill to the correct level before the first run. To check the fertilizer spreader gearbox oil level, remove the level check plug on the housing side and verify oil is present at the plug bore level. The first oil change should be carried out at 50-70 operating hours to purge any assembly debris, and subsequently every 500 hours or at least once per year. Using incorrect oil viscosity or contaminated oil will accelerate internal wear.

Q: What does the 1:2.78 fertilizer spreader gearbox ratio mean in practice?
A: A 1:2.78 fertilizer spreader gearbox ratio means that for every single revolution of the PTO input shaft, the gearbox output shaft completes 2.78 revolutions. At the standard 540 RPM PTO speed, the output shaft therefore rotates at approximately 1,501 RPM. This step-up ratio is specifically chosen for single-disc fertilizer spreaders that require a higher rotational speed at the disc than the PTO can directly provide, ensuring adequate centrifugal force for lateral throw of granular fertilizer. If you need a different disc speed for your specific spreading application, CMN Transmission offers alternative ratio models.

Q: What is the maximum power and torque rating of this agricultural gearbox?
A: The L-25A is rated at a maximum input and output power of 5.2 kW (7 HP) at 540 RPM, with a maximum output torque of 31 N·m. These ratings define the upper continuous working limits of the gearbox and should not be exceeded in normal operation. For applications requiring higher power, such as heavy twin-disc spreaders or high-capacity hopper systems, CMN Transmission's range of larger agricultural gearbox models for fertilizer spreaders should be considered. Contact our technical team with your power and torque requirements for a product recommendation.

Q: Can I use this gearbox with fertilizers other than granular NPK products?
A: Yes. The L-25A is compatible with a wide range of granular materials including NPK blends, single-nutrient fertilizers (urea, ammonium nitrate, muriate of potash), lime prills, pelleted compost, and granulated micronutrient products. For liquid fertilizer systems, a different spreader disc and agitator configuration is required, but the gearbox itself is fully compatible with liquid application spreader builds where the disc or agitator loads remain within the 5.2 kW / 31 N·m rating. Always rinse spreader disc and hopper components with fresh water after applying hygroscopic or reactive fertilizers to prevent corrosive residue accumulation.

Q: What is the weight and housing material of the L-25A fertilizer spreader gearbox?
A: The L-25A weighs 4.1 kg and features a die-cast aluminium alloy housing. The aluminium construction provides several practical advantages over cast iron alternatives: it is significantly lighter, which simplifies installation and reduces total spreader weight, improving tractor stability and reducing soil compaction on sensitive ground. Aluminium also provides inherent resistance to the corrosive effects of fertilizer chemicals, particularly ammonium-based compounds and potassium chloride. The housing exterior is further protected by an epoxy finish coating to prevent surface corrosion from prolonged fertilizer exposure.

Q: What fertilizer spreader gearbox parts are available as spares from CMN Transmission?
A: CMN Transmission stocks a comprehensive range of fertilizer spreader gearbox parts for the L-25A, including input and output shaft oil seals, deep-groove ball bearings, bevel gear sets, housing gaskets, and mounting hardware. Genuine CMN replacement parts are machined to the same specifications as the original components and are the only parts recommended for warranty-approved repairs. To order spare parts, please provide the gearbox model (L-25A), the specific part required, and your quantity. Our parts team can also assist with identifying worn components from photographs or part number references.

Q: Is a warranty provided with the CMN Transmission L-25A fertilizer gearbox?
A: Yes, all CMN Transmission agricultural gearboxes are covered by our standard manufacturing warranty against defects in materials and workmanship. The warranty requires that the gearbox be installed, filled with the correct oil, and operated within its rated power and torque limits. Damage resulting from overload, incorrect oil, contaminated lubrication, improper installation, or operation without PTO driveline overload protection is not covered under warranty. Please retain your purchase documentation and contact our after-sales team with any warranty claim enquiries, supported by photographs of the defect and your operating details.

Q: Can CMN Transmission supply custom fertilizer spreader gearboxes to different ratios or shaft configurations?
A: Yes. CMN Transmission maintains a catalogue of nearly one thousand agricultural gearbox specifications and can also develop custom agricultural gearbox solutions for OEM manufacturers and specialty machine builders. Whether you require a different fertilizer spreader gearbox ratio, alternative input or output shaft dimensions, a modified mounting flange, or a left-hand rotation variant, our engineering team can review your requirements and advise on standard variants or custom development options. Minimum order quantities apply for fully custom designs. Contact us with your technical specification and application details for a quotation.

Q: What tractor PTO speed is the L-25A fertilizer spreader gearbox compatible with?
A: The L-25A is rated and specified for use at 540 RPM PTO input speed, which is the standard low-speed PTO setting on the overwhelming majority of compact to mid-size agricultural tractors used worldwide. It is not designed for use at 1000 RPM PTO speed, which would exceed the rated input speed and would cause significant overspeed of the output shaft. If you need a gearbox for a 1000 RPM PTO application, please contact CMN Transmission to identify a suitable alternative from our broader fertilizer spreader gearboxes product range. We can also advise on intermediate RPM requirements.

ग्राहक समीक्षाएँ

James Whitfield, Wheat Farming, United Kingdom
"Been running this L-25A gearbox on my Amazone ZA-M twin disc spreader for about eight months now and it's been flawless. We spread around 200 acres of wheat with NPK 23-0-10 last autumn and the disc speed stayed rock solid the whole time. Weighs next to nothing compared to the original Comer unit we replaced. First oil change at 60 hours as recommended, came out clean. Really happy with it."

Fernando Albuquerque, Soybean and Corn Farming, Brazil
"We ordered four of these gearboxes for our fleet of compact spreaders used on soybean and corn farms across Mato Grosso state. The 1:2.78 ratio was perfect for what we needed. Everything arrived well packed from Korea in about 12 days. Installation was easy because the bolt pattern matched our spreader frames perfectly. No issues after three months and around 150 hours on the busiest unit. Good value for price."

Trevor MacAllister, Crop Farming, Australia
"My original Comer gearbox seized up mid-season right when I needed it most. Found CMN Transmission online and ordered this replacement L-25A. The customer service team were incredibly responsive, answered my technical questions the same day and confirmed dimensions before I ordered. Unit arrived in under two weeks to rural Queensland and fitted straight on without any mods. Has been working perfectly through the wet season so far."

Klaus Hoffmeister, Farm Equipment, Germany
"We ordered this gearbox as a replacement for our old Comer unit on the fertilizer spreader. The quality is very good; the aluminum housing is lightweight and cleanly finished. The only minor criticism: the packaging could have been a bit sturdier. Technically absolutely correct specifications, fits exactly, and runs quietly. We will order from CMN Transmission again."

Michael Dupont, Lawn and Turf Management, Canada
"I manage a golf course and two sports complexes and we use a small disc spreader for our turf fertilizer program. The original gearbox wore out after about five seasons of heavy use, which is pretty good going honestly. This CMN replacement is quieter than the original and has the same ratio so we didn't need to change any spreader settings. Running 80W-90 Castrol gear oil as recommended. Very satisfied with the purchase."

Antoine Moreau, Vineyard Maintenance, France
"We use fertilizer spreaders across our vineyards in Burgundy and the gearboxes take a real hammering on the slopes. Ordered three of these L-25A units as workshop spares and one has already been fitted. No noise, no leaks, and the aluminium housing seems to shrug off our potassium sulphate applications without any corrosion. The technical documentation supplied with the unit is very complete. Shipping to France took about 10 business days, which is acceptable."

Roberto Perez Vega, Agricultural Machinery, Mexico
"We bought this gearbox as a spare part for our fertilizer spreader in Guadalajara. We've had it in intensive use for corn and sorghum for four months now and it works perfectly. The sales team helped us confirm compatibility with our spreader model before purchasing, which is much appreciated. The price is very competitive compared to other European brands. We definitely recommend it."

Rajiv Choudhary, Crop Farming, India
"Our company ordered 10 units of L-25A gearboxes and all came with the correct specifications. They also fit perfectly on our fertilizer spreader. The CMN Transmission team answered all our technical questions very quickly. The quality is very good and the price is also reasonable. We intend to order more next season."

Carlos Mendez Bianchi, Soy and Wheat Farming, Argentina
"Ordered this as an emergency replacement when our main gearbox failed during the pampas spreading season. CMN Transmission processed the order the same day and arranged air freight dispatch so we received it within six days. Fitted it on the night it arrived and was back spreading by morning. It has now covered over 80 hours and is running perfectly. I cannot fault the product or the service. Will be keeping two of these as on-site spares from now on."