Gearbox Penyebar Pupuk L-25A Rasio 1:1.9 Pengganti untuk Gearbox Comer L-25A

The L-25A Fertilizer Spreader Gearbox Ratio 1:1.9 Replacement for Comer L-25A Gearbox, also called fertilizer distributor gearbox, is an essential component of agricultural machinery, specifically designed for tasks such as soil preparation, crop treatment, and fertilizer spreading. Located 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. These fertilizer spreader gearboxes are engineered for durability and reliability, ensuring consistent power transmission to meet varying operational demands.

Equipped with a precisely machined series of gears and shafts housed in a robust aluminium casing, this agricultural gearbox adjusts the rotational speed and torque based on the spreading requirements, optimizing machine performance across diverse terrains and crop types. Whether fitted to chemical fertiliser spreaders, rotary mowers, or band saws, the L-25A delivers consistent PTO-driven performance at 540 r/min input. Built to withstand the rigorous conditions of agricultural work, this gearbox for fertilizer spreader applications plays a crucial role in enhancing the efficiency and effectiveness of key farming tasks season after season.

Parameter Teknis

Kami telah menyelesaikan audit pemasok pihak ketiga dan verifikasi perusahaan yang didukung oleh SGS / TÜV Rheinland. Verifikasi ini membantu pembeli meninjau identitas perusahaan, operasional bisnis, profil pemasok, dan kemampuan manufaktur secara umum. Laporan inspeksi khusus produk, dokumen material, atau catatan kepatuhan dapat diberikan sesuai dengan persyaratan pesanan.

Jumlah Pesanan Minimum (MOQ): Dapat diatur secara fleksibel berdasarkan jenis produk dan jumlah pesanan.

Contoh: Pelanggan baru dapat meminta 1–5 sampel dalam keadaan yang sesuai.

Pesanan Campuran: Penggabungan berbagai model didukung; jumlah total pesanan harus mencapai sekitar $1.500.

Pesanan Kecil: Pemesanan mulai dari 1-2 buah didukung, tetapi harga satuannya akan relatif lebih tinggi.

Waktu Tunggu: 10–25 hari kerja untuk suku cadang standar; 20–45 hari kerja untuk komponen yang disesuaikan; 45–120 hari kerja untuk peralatan berbasis proyek.

Syarat Perdagangan: EXW, FOB, CIF, dan DAP umumnya didukung; ketentuan FCA, CFR, CPT, CIP, dan DDP dapat dinegosiasikan secara khusus.

Dimensi Gearbox Penyebar Pupuk L-25A

Features of the L-25A Fertilizer Spreader Gearbox 1:1.9

1. Enhanced Precision & Ratio Accuracy
The 1:1.9 fertilizer spreader gearbox ratio is precision-machined to deliver calibrated spinner disc speed, enabling uniform fertilizer distribution across varying field widths. This controlled output directly reduces over-application waste, cuts input material costs, and minimizes environmental runoff, making it an environmentally responsible choice for modern precision farming operations where application accuracy is critical.

2. Superior Durability in Harsh Conditions
Constructed with a high-strength aluminium housing and precision-hardened internal gear sets, this fertiliser spreader gearbox is built to resist the corrosive effects of chemical fertilizers, moisture ingress, soil debris, and extreme temperature fluctuations. The sealed design and robust oil seals prevent contamination of internal components, ensuring reliable operation across thousands of working hours even in the most demanding field environments.

3. Optimized Fuel Efficiency
The L-25A's optimized gear mesh geometry and low-friction internal components minimize parasitic power losses during torque transfer from the tractor PTO shaft. This efficient mechanical design reduces unnecessary engine load, translating directly into measurable fuel savings per hectare treated. For large-scale farming operations handling multiple fields per season, this efficiency advantage compounds into significant operational cost reductions over the working lifetime of the gearbox.

4. Wide Versatility Across Applications
This agricultural gearbox for fertilizer spreader use is fully compatible with granular, pelleted, liquid, and organic fertilizer types, as well as lime and compost spreaders. Its standard 1-3/8" six-spline PTO input shaft connection and 25 mm output shaft suit a wide variety of tractor makes and spreader models across diverse terrains, from flat arable fields to hillside orchards, making it a highly versatile choice for mixed farming enterprises.

5. Desain dengan Perawatan Rendah
Featuring an oil-bath lubrication system with a simple drain plug and fill port, monitoring the fertilizer spreader gearbox oil level takes only seconds. The compact 0.35 L oil capacity uses widely available 80W-90 gear oil, and oil changes are required only every 500 operating hours or annually, whichever comes first. Modular component design means individual fertilizer spreader gearbox parts can be replaced without discarding the entire unit, reducing long-term maintenance expenditure.

6. Direct Comer L-25A Drop-In Replacement
Engineered as a direct dimensional and functional replacement for the original Comer L-25A unit, this gearbox matches all critical mounting bolt patterns, shaft diameters, and interface dimensions exactly. No custom adapters, machining, or bracket modifications are required. This true drop-in compatibility minimizes machine downtime during a gearbox replacement and makes it the preferred choice for contractors and dealers sourcing reliable fertilizer gearbox replacements at competitive cost.

How Does the L-25A Fertilizer Spreader Gearbox Work

The L-25A fertilizer spreader gearbox receives rotational power directly from the tractor's Power Take-Off (PTO) shaft, which operates at a standardized 540 r/min. Through the internal bevel gear arrangement (gear set reducing stage 3-4), this input speed is transformed at a 1:1.9 ratio, delivering an appropriate output rotational speed of approximately 284 r/min to drive the spinner discs, agitators, or augers of the fertilizer spreader. Simultaneously, the gearbox multiplies torque from the input shaft up to a maximum of 99 N·m at the output shaft, ensuring the spinning mechanism generates sufficient centrifugal force to project granular or liquid fertilizer evenly across the intended spread width. This precise speed-to-torque conversion is what differentiates a high-quality agricultural gearbox from generic substitutes, directly influencing the uniformity and accuracy of fertilizer distribution.

The lightweight yet strong aluminium housing (total unit weight 4.1 kg) encloses precision-ground bevel gears and hardened steel shafts running in quality rolling-element bearings. Multi-lip oil seals installed at both the input and output shaft exits prevent the ingress of fertilizer dust, moisture, crop debris, and soil particles that would otherwise cause accelerated abrasive wear of the gear flanks and bearing raceways. The sealed oil bath, filled with 0.35 L of SAE 80W-90 gear lubricant, creates a hydrodynamic film between all moving gear and bearing surfaces, drastically reducing metal-to-metal contact and heat generation during continuous field operation. The aluminium housing's natural corrosion resistance is particularly valuable given the highly aggressive chemical environment created by nitrogenous, phosphatic, and potassic fertilizers encountered in typical spreader operations.

The L-25A gearbox is rated to handle a maximum continuous input power of 11 kW (15 HP). The internal gear and shaft assembly is designed with calculated safety margins to absorb the momentary shock loads and torque spikes that are unavoidable during the start-up of a loaded spreader disc, changes in spreading rate, or brief material bridging in the hopper outlet. When the gearbox is paired with a properly rated PTO drive shaft incorporating a slip clutch or shear bolt overload protection device, the system is further protected against catastrophic torque events caused by foreign object ingestion or sudden disc blockages. This layered approach to load management ensures both the fertilizer spreader gearbox and the upstream driveline components are protected from damage during real-world agricultural use.

To maintain optimal internal conditions, the gearbox is supplied dry and must be filled with SAE 80W-90 gear oil to the specified 0.35 L capacity before first operation. The initial oil change should be performed after 50 to 70 operating hours, as this early service interval removes metal particles generated during the gear and bearing bedding-in period. Thereafter, oil changes at 500-hour intervals or annually prevent oxidation and contamination of the lubricant, which would otherwise lead to inadequate film strength, elevated operating temperatures, and premature internal wear. Checking the fertilizer spreader gearbox oil level at the start of each season and after extended storage periods is strongly recommended as part of a responsible preventive maintenance regime.

Bidang Aplikasi

L-25A Fertilizer Spreader Gearbox Parts

Rumah Gearbox
The precision die-cast aluminium housing forms the structural backbone of the L-25A, encasing all rotating components within a rigid, accurately dimensioned enclosure. Its smooth internal surfaces reduce churning losses, while precisely bored bearing seats ensure correct gear mesh geometry is maintained throughout the service life. The external surface incorporates mounting flanges and bolt holes that match the original Comer L-25A footprint exactly.

Poros Masukan
The hardened and ground input shaft is splined to accept a standard 1-3/8" (6-spline) PTO connection, the universal standard for European agricultural machinery operating at 540 r/min. Manufactured from high-tensile alloy steel and heat-treated for surface hardness, the input shaft transmits up to 11 kW of continuous PTO power into the gearbox without distortion or fretting at the spline interface, even under the vibration and shock loading typical of field operation.

Roda Gigi Bevel
The mating bevel gear pair forms the heart of the L-25A's power transmission path, converting the axis of rotation from the PTO input to the output shaft direction while simultaneously stepping the gear ratio to 1:1.9. Both gears are precision hobbed and lapped from case-hardening steel, then carburized and hardened to achieve the surface hardness and core toughness required to handle the 99 N·m maximum output torque across an extended service life.

Poros Keluaran
The 25 mm diameter output shaft delivers the converted rotational power directly to the fertilizer spreader's disc drive hub or auger coupling. Machined to tight dimensional tolerances and fitted with a keyway or spline as specified by the model variant, the output shaft is supported by robust rolling-element bearings at both ends to manage radial and axial loads generated by the weight and centrifugal imbalance of the spinner disc assembly during high-speed operation in the field.

Bantalan
Deep groove ball bearings or tapered roller bearings, selected according to the load requirements of each shaft position, support both the input and output shafts within the housing bores. These standard-dimension bearings from recognized manufacturers are dimensioned to handle the combined radial and axial loads generated during spreader disc operation, and their dimensions are fully interchangeable with original Comer L-25A specification bearings, simplifying sourcing of fertilizer spreader gearbox parts during overhaul.

Segel Oli
Rotary shaft lip seals are installed at every point where a rotating shaft exits the aluminium housing, creating a positive barrier against the ingress of fertilizer dust, moisture, crop material, and soil contamination that would otherwise rapidly destroy the gear oil film and accelerate internal wear. Manufactured from NBR or FKM rubber compounds selected for compatibility with 80W-90 gear oil and agricultural chemical environments, these seals maintain their sealing integrity across the full operating temperature range of the gearbox.

Sistem Pelumasan
The L-25A employs a splash lubrication system in which the rotating bevel gear picks up SAE 80W-90 oil from the 0.35 L reservoir at the base of the housing and distributes it to all gear tooth contact zones and bearing positions as it rotates. An oil level check plug and drain plug are provided in accessible positions on the housing. This self-contained oil-bath system requires no external pump or filtration equipment, making the fertilizer gearbox self-sufficient and simple to maintain in the field environment.

Mounting Hardware and Fasteners
The housing incorporates four tapped or through-bored mounting holes on a bolt circle pattern matching the original Comer L-25A specification, accepting standard metric fasteners. The mounting flange dimensions (74 mm x 74 mm bolt circle with 11 mm diameter holes as shown in the dimensional drawing) allow direct bolted attachment to the fertilizer spreader's central gearbox mounting frame without modification. High-tensile steel fasteners used to secure the gearbox to the spreader frame are critical safety items and must be torqued to the manufacturer's specified values.

How to Correctly Install the L-25A Gearbox

1. Inspeksi Pra-Pemasangan
Before mounting the gearbox, inspect all mating surfaces on both the spreader frame and the gearbox housing for burrs, paint runs, debris, or corrosion that could prevent full face-to-face contact. Verify that the bolt hole pattern on the spreader frame matches the L-25A's 74 mm x 74 mm mounting pattern with 11 mm clearance holes. Check input and output shaft ends for any transit damage to the spline teeth or keyways. Do not install a damaged unit.

2. Initial Oil Fill Before Mounting
This gearbox is supplied dry without oil. Before installation, fill the gearbox with 0.35 L of SAE 80W-90 gear oil through the designated fill port, then refit and tighten the fill plug securely. Checking the fertilizer spreader gearbox oil level with the unit in its operating attitude ensures the correct fill volume is confirmed before any shaft rotation occurs. Never operate the gearbox without oil as this will cause immediate and irreversible internal damage.

3. Secure Mounting to Spreader Frame
Offer the gearbox up to the spreader's central gearbox mounting frame and align all four mounting holes. Insert grade 8.8 or better M10 bolts, plain washers, and spring washers. Hand-tighten all four fasteners before torquing diagonally in two stages to the recommended torque value (typically 40-45 N·m for M10 grade 8.8 bolts). Diagonal tightening prevents housing distortion and ensures the mounting flange is pulled uniformly square to the frame face, maintaining correct internal gear alignment.

4. Connect the PTO Drive Shaft
Slide the PTO drive shaft's 1-3/8" six-spline yoke onto the gearbox input shaft, engaging the splines fully until the locking collar or roll pin retainer clicks into place and secures the connection axially. Ensure the PTO shaft's overrun clutch or slip clutch is oriented in the correct direction as marked by the manufacturer. Verify that the PTO shaft length allows for correct operating angles and that adequate overlap of the telescoping shaft sections is maintained throughout the full range of tractor-to-spreader geometry.

5. Attach the Spreader Disc Assembly
Fit the fertilizer spreader disc hub onto the 25 mm output shaft, engaging the key or spline drive as appropriate to the specific model. Retain the disc hub using the specified locking method, whether a shaft end nut with cotter pin, a roll pin, or a flanged hub bolt pattern. Check that the disc runs true without visible radial run-out or wobble, as disc imbalance at 284 r/min output speed will generate vibration loads transmitted back into the gearbox output shaft bearings, shortening their service life.

6. Check PTO Shaft Guard and Safety Chain
Fit the PTO shaft's plastic outer guard over the driveline and connect both ends of the safety chain to fixed anchor points on the tractor and spreader respectively so the guard cannot rotate with the shaft. The guard must overlap the gearbox input shaft yoke area without contacting the gearbox housing. This is a mandatory safety requirement: a rotating unguarded PTO shaft is an extreme entanglement hazard, and many jurisdictions impose legal obligations on operators to ensure correct guarding before field operation.

7. No-Load Run-In and Final Checks
With all personnel clear of the spreader and PTO arc, engage the PTO at low engine RPM and run the gearbox for 5 minutes without load, listening for any abnormal noise such as grinding, knocking, or rattling that would indicate incorrect assembly or internal contact. Stop the PTO, allow 2 minutes to elapse, then check for any oil leaks at the shaft seals or housing joint faces. Recheck all mounting fastener torques after this initial run-in. Only after confirming all checks are satisfactory should the spreader be loaded and taken into field operation for the first time. Contact your CMN Transmission dealer for technical support if any issues are observed during the run-in period.

Correct Maintenance of the L-25A Gearbox

Fertilizer Spreader Gearbox and PTO Driveline Shaft

The Power Take-Off (PTO) shaft is the mechanical link between a tractor and its attached implements. Standardized by ISO 500 at 540 r/min for agricultural applications, the PTO shaft transmits engine power from the tractor's gearbox-driven PTO stub to the implement's input shaft via a telescoping driveshaft fitted with universal joints at both ends. Without the PTO, tractor-mounted implements such as fertilizer spreaders, mowers, round balers, and rotary tillers could not function. The PTO shaft is therefore not merely a convenience feature but the fundamental power supply for the entire family of PTO-driven agricultural machinery in widespread global use.

Fertilizer spreader gearboxes serve as the critical power transformation device between the raw PTO output and the application mechanism of the spreader. The tractor PTO delivers 540 r/min at relatively low torque. The fertilizer distributor gearbox accepts this input and converts it to the speed and torque required by the spinning disc or auger mechanism. In the case of the L-25A at a 1:1.9 ratio, the input speed of 540 r/min is stepped up to approximately 1,026 r/min at the output, while the corresponding output torque is delivered at up to 99 N·m to drive the disc at the rotational speed needed for correct fertilizer throw distance and spread pattern. Different fertilizer spreader gearbox ratio values are available across the Comer L-25A family to suit different spreader designs, disc diameters, and target spread widths, allowing the machine designer to optimize spreading performance for their specific product.

The L-25A gearbox input shaft accepts the standard 1-3/8" six-spline yoke fitting used on the vast majority of European 540 r/min agricultural PTO drive shafts. When selecting or specifying a PTO driveshaft to pair with this gearbox for fertilizer spreader applications, several parameters must be confirmed: the shaft must be capable of transmitting at least 11 kW at 540 r/min continuously; the collapsed and extended length must provide correct engagement and clearance across the full range of tractor lift positions; the universal joint angles must remain within the manufacturer's recommended limits to avoid vibration-induced resonance; and the shaft must incorporate an appropriately rated overload protection device, either a slip clutch or shear bolt coupling, to protect the gearbox and tractor driveline in the event of a disc blockage or foreign object impact.

When the tractor PTO is engaged, rotational power flows from the tractor PTO stub, through the telescoping PTO driveshaft, into the L-25A gearbox input shaft via the 1-3/8" splined connection. The bevel gear set converts this power at the 1:1.9 ratio before delivering it to the output shaft, which drives the spreader disc. The operator controls the spreading rate through the tractor's PTO engagement and the spreader's shutter plate opening, while the gearbox consistently maintains the correct disc speed regardless of minor throttle variations. The agricultural gearbox for fertilizer spreader use thus acts as both a power converter and a buffering element in the driveline, absorbing minor speed variations before they can affect the uniformity of the spreading pattern across the field.

A worn or incorrectly specified interface between the PTO shaft and the fertilizer spreader gearbox introduces speed variation at the disc, directly translating into uneven fertilizer distribution. Excessive play in the spline connection causes rotational shock loading each time the disc encounters resistance, accelerating wear of both the gearbox input shaft splines and the PTO shaft yoke. Choosing a high-quality, correctly specified agricultural gearbox from a reputable fertilizer spreader gearbox manufacturer such as CMN Transmission, and pairing it with a properly matched PTO drive shaft, is the foundation of accurate, efficient, and economical fertilizer application in every field condition encountered during the growing season.

Mengapa Memilih Gearbox Penyebar Pupuk dari CMN Transmission?

Korea CMN Transmission Co., Ltd. was established in 2000 and is headquartered in Sandan-o, Danwon-gu, Ansan-si, Gyeonggi-do, Korea. Over more than two decades of focused product development and manufacturing, CMN Transmission has grown into one of the most recognized and trusted names among global fertilizer spreader gearbox manufacturers, supplying OEM customers, distributors, and aftermarket dealers across more than 60 countries worldwide. With a dedicated factory workforce of over 100 skilled employees committed exclusively to the R&D, manufacturing, sales, and aftersales service of agricultural gearboxes, CMN Transmission operates a vertically integrated production facility equipped with CNC machining centres, gear grinding machines, heat treatment lines, and CMM quality inspection equipment. This infrastructure supports an annual production output exceeding 500,000 gearbox units across the company's comprehensive product range, providing the manufacturing depth needed to fulfil both large OEM build programmes and time-critical aftermarket replacement orders reliably throughout the year.

CMN Transmission's product portfolio covers the full breadth of agricultural power transmission requirements, including 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 and transportation gearboxes, corn header gearboxes, cutting bar gearboxes, and poultry feeding gearboxes, together with a custom agricultural gearbox manufacturing capability covering nearly one thousand specifications. This breadth of product coverage makes CMN Transmission a single-source supplier for machinery manufacturers with diverse gearbox requirements across multiple product lines.

Quality assurance at CMN Transmission is underpinned by CE marking, ISO 9001 Quality Management System certification, ISO 14001 Environmental Management certification, and OHSAS 18001 Occupational Health and Safety certification. These internationally recognized standards govern every aspect of the production process from incoming raw material inspection through final product testing and dispatch. Customers sourcing from CMN Transmission can request full certification documentation and dimensional inspection records as part of their incoming goods acceptance process. Export destinations served include 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, with dedicated logistics experience covering the import documentation, phytosanitary, and product compliance requirements of each major market. Contact CMN Transmission today to discuss your fertilizer spreader gearbox for sale requirements, request a technical datasheet, or obtain a volume quotation for your supply programme.

Pertanyaan yang Sering Diajukan

Q: Is the CMN L-25A a true direct replacement for the Comer L-25A fertilizer spreader gearbox?
A: Yes. The CMN L-25A is engineered as a dimensional and functional drop-in replacement for the original Comer L-25A unit. All critical dimensions match, including the mounting bolt circle (74 mm x 74 mm, 4 x M10 holes), the 1-3/8" six-spline input shaft, and the 25 mm output shaft diameter. No machining, custom adapters, or bracket modifications are required for installation on any machine that originally used a Comer L-25A gearbox with ratio 1:1.9.

Q: What oil should I use to fill the L-25A fertilizer spreader gearbox, and what is the correct oil capacity?
A: Use SAE 80W-90 GL-4 or GL-5 gear oil. The L-25A has a maximum oil capacity of 0.35 litres. The gearbox is supplied without oil and must be filled before first operation. Perform the first oil change after 50 to 70 operating hours to flush out bedding-in wear particles, then change the oil every 500 hours or annually. Correct fertilizer spreader gearbox oil level should be confirmed with the unit in its operating attitude before starting the machine.

Q: What does the 1:1.9 fertilizer spreader gearbox ratio mean, and does CMN offer other ratios?
A: A 1:1.9 fertilizer spreader gearbox ratio means that for every one revolution of the input shaft, the output shaft completes 1.9 revolutions. At a standard 540 r/min PTO speed, this delivers approximately 1,026 r/min at the output to drive the spreader disc. This ratio is commonly specified for standard twin-disc fertilizer spreader designs. The Comer L-25A series includes models with ratios ranging from 1.25 to 3.00 to suit different spreader disc diameters and target throw widths. Contact CMN Transmission for availability of other ratio variants.

Q: What is the maximum input power and torque this agricultural gearbox can handle continuously?
A: The L-25A agricultural gearbox is rated for a maximum continuous input power of 11 kW (15 HP) at 540 r/min, with a corresponding maximum output torque of 99 N·m. These ratings represent the continuous duty capacity under normal operating conditions with correct oil fill and adequate ambient temperature. Brief overload peaks above the rated power, such as those occurring during disc start-up, are managed by the gear safety factor built into the design, but the gearbox should always be paired with an appropriate PTO overload protection device.

Q: Can the L-25A fertilizer gearbox be used on spreaders applying liquid fertilizer, lime, or compost?
A: Yes. The L-25A's sealed aluminium housing and multi-lip oil seals provide effective protection against the corrosive and abrasive materials encountered when spreading granular fertilizers, agricultural lime, ground chalk, dolomite, and granular compost. For liquid fertilizer applications, ensure the output shaft and disc hub connection is appropriate for the wet environment and that adequate splash guarding is in place to prevent liquid fertilizer spray from reaching the gearbox housing joints and oil seals over extended operating periods.

Q: What is the weight of the L-25A gearbox and why does the housing material matter?
A: The L-25A weighs 4.1 kg, thanks to its die-cast aluminium housing. This low weight reduces the additional moment load placed on the fertilizer spreader's central frame and hitch connection, important for compact and lighter spreader models. Aluminium's inherent corrosion resistance is a significant advantage in the chemical fertilizer environment, where a cast iron housing of equivalent strength would require careful ongoing surface protection to prevent rust-through of the housing walls and contamination of the gear oil with iron oxide particles.

Q: Do you hold the L-25A fertilizer spreader gearbox in stock for immediate dispatch?
A: CMN Transmission maintains substantial finished goods stock of the L-25A and other high-demand fertilizer spreader gearboxes to support urgent replacement orders during the peak spreading season. Contact our sales team with your order quantity and destination for a current lead time and shipping cost quotation. For dealers and importers requiring regular stocking quantities, we recommend establishing a blanket order arrangement to ensure priority allocation of stock during seasonal demand peaks when the L-25A fertilizer spreader gearbox for sale inquiry volume is highest.

Q: How do I identify which specific L-25A variant matches my existing Comer gearbox configuration?
A: The Comer L-25A series includes numerous code variants, as shown in the Comer gearbox catalogue reference table (code numbers in the 9.124.xxx range). Key parameters to identify are: gear ratio (look for "1.90" in the ratio column), input shaft connection type (shaft type X, Y, or Z), and output shaft type. The reference specification images above show the shaft type codes and mounting configurations. Provide our technical team with your existing Comer code number (e.g., 9.124.912 or 9.124.019) and we will confirm the correct CMN equivalent and check stock availability.

Q: What is the expected service life of the L-25A fertilizer spreader gearbox under normal agricultural use?
A: Under correct installation conditions, with proper initial and periodic oil changes using SAE 80W-90, and within the rated power and speed limits, the L-25A is designed for a service life exceeding 1,000 operating hours. Many units in the field significantly exceed this figure when regularly maintained. The primary wear items are oil seals and bearings, both of which are individually replaceable as standard fertilizer spreader gearbox parts, meaning the aluminium housing and gear set can often be rebuilt rather than replaced, extending the total useful life of the unit considerably beyond the initial 1,000-hour design target.

Q: Can CMN Transmission supply L-25A gearboxes with custom shaft configurations or special mounting options?
A: Yes. Beyond the standard catalogue configurations illustrated in the shaft type reference tables shown above, CMN Transmission offers custom agricultural gearbox configurations on request for OEM customers with specific shaft diameter, length, keyway, or spline requirements not covered by the standard range. Minimum order quantities apply for custom configurations. Contact our technical sales department with your dimensional requirements and annual volume forecast. We have extensive experience providing custom-engineered fertilizer spreader gearbox solutions for equipment manufacturers across Europe, the Americas, and the Asia-Pacific region.

Ulasan Pelanggan

James, Crop Farming, United States
"We run about 2,800 acres of corn and soybeans in central Illinois and we go through gearboxes pretty hard. Picked up two L-25A units from CMN Transmission last spring to replace worn Comers on our twin-disc spreader. Honestly can't tell the difference in terms of fit and performance. Everything lined up perfectly, oil seal quality looks good, and we've put about 180 hours on one of them already with zero issues. Price was better than the OEM quote we had. Will be ordering more."

Thierry, Grain Farming, France
"I ordered two L-25A gearboxes for our fertilizer spreaders on our grain farm in Beauce. Delivery took a little longer than expected but the customer service was very responsive and kept me informed. Once installed, the gearboxes work perfectly. The 1:1.9 ratio corresponds exactly to our needs. I am satisfied with the quality for the price. I recommend these fertilizer spreader gearbox manufacturers to other French farmers."

Klaus, Agricultural Machinery, Germany
"We run a large agricultural machinery workshop in Bavaria and regularly need replacement gearboxes for fertilizer spreaders. The L-25A gearboxes from CMN Transmission are identical to the millimeter with the original Comer parts. All four mounting bolts, the input and output shafts, and the housing fit perfectly. We now have twelve pieces in stock and sell them to our agricultural customers without any problems. Quality and price are right. Delivery time is about three weeks via sea freight, which is acceptable to us."

David, Orchards and Vineyards, United Kingdom
"I bought the L-25A ratio 1:1.9 gearbox to replace a Comer unit that had developed a bearing noise after about 800 hours on our Amazone spreader. Installation was genuinely straightforward, took about 45 minutes including filling the oil. The gearbox runs quieter than the old one did even when it was new. My only note is that the unit ships bone dry so don't forget to fill it with 80W-90 before you run it! Other than that, very pleased. Good value compared to sourcing a genuine Comer replacement through the dealer network here in the UK."

Carlos, Sugarcane Plantations, Brazil
"We acquired 6 L-25A gearboxes for our agricultural machinery fleet in Sao Paulo. The 1:1.9 transmission ratio is perfect for our fertilizer spreaders in sugarcane plantations. The quality of the aluminum and the seals looks excellent. CMN's technical support answered all our questions about the oil level of the fertilizer spreader gearbox very quickly by email. The delivery was well organized with complete documentation for importation. Highly recommended as fertilizer spreader suppliers."

Michael, Wheat Farming, Australia
"We've been using this L-25A unit on our farm in Victoria for one full wheat and canola season now. Conditions here can be tough in summer with dust and heat, but the gearbox held up really well. No oil leaks, no noise issues. We checked the oil level at the start and halfway through the season and it was still at the correct level, which tells you the seals are doing their job. Shipping from Korea was around three weeks which worked fine for us as we ordered it during the off-season. Would definitely buy again from these fertilizer spreader gearbox suppliers."

Marco, Distributor Suku Cadang Pertanian, Italia
"Kami memesan sepuluh unit L-25A untuk pelanggan dealer kami di Emilia-Romagna. Kualitas gearbox untuk penyebar pupuk ini sangat bagus, rasio 1:1,9 telah diverifikasi dan sesuai dengan spesifikasi yang dinyatakan. Staf layanan pelanggan CMN mengirimkan gambar dimensi dan sertifikat CE kepada kami tanpa masalah. Waktu pengiriman dipatuhi. Harganya kompetitif dibandingkan dengan produk sejenis di Eropa. Pemasok suku cadang pertanian yang sangat baik."

Somchai, Nasi dan Sayuran, Thailand
"Saya membeli gearbox ini untuk penggantian alat penyebar pupuk pada usaha pertanian padi dan sayuran kami di Thailand. Poros input spline 1-3/8 inci sangat pas dengan poros penggerak PTO kami dan output 25 mm terhubung ke hub cakram kami seperti yang diharapkan. Pemasangan memakan waktu sekitar satu jam dan gearbox telah beroperasi selama tiga bulan sejak itu tanpa masalah. Saya akan memberikan penilaian layanan sedikit lebih rendah karena informasi pelacakan pengiriman lambat diperbarui, tetapi kualitas produknya sendiri bagus dan kami akan memesan lagi untuk mesin kedua kami."

Robert, Manajemen Padang Rumput, Kanada
"Sebagai importir mesin yang melayani pasar padang rumput Kanada, saya secara rutin menyediakan gearbox penyebar pupuk untuk jaringan dealer kami. CMN L-25A sekarang menjadi barang pilihan saya untuk penggantian Comer L-25A. Akurasi dimensinya konsisten baik di berbagai pesanan; dokumentasi CE selalu diberikan tanpa perlu dikejar, dan dealer saya melaporkan sangat sedikit klaim garansi. Kualitas housing aluminiumnya jauh lebih baik daripada beberapa alternatif Korea lainnya yang pernah saya coba. Logistik ke Kanada berjalan lancar. CMN adalah mitra yang andal untuk pasokan jangka panjang."