Gearbox Penyebar Pupuk L-25A Rasio 3.3:1 Pengganti untuk Gearbox Comer L-25A
The L-25A Fertilizer Spreader Gearbox Ratio 3.3:1 Replacement for Comer L-25A Gearbox, also called a fertilizer distributor gearbox, is an essential component of agricultural machinery specifically designed for soil preparation, crop treatment, and fertilizer spreading. Positioned at the mechanical center of the spreader, 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 across different field conditions and fertilizer types.
Gearbox Penyebar Pupuk L-25A Rasio 3.3:1 Pengganti Gearbox Comer L-25A, juga disebut gearbox distributor pupuk, adalah komponen penting dari mesin pertanian yang dirancang khusus untuk persiapan tanah, perawatan tanaman, dan penyebaran pupuk. Terletak di pusat mekanis penyebar, gearbox ini mentransmisikan daya dari power take-off (PTO) traktor ke cakram atau auger yang berputar untuk mendistribusikan pupuk secara merata di seluruh lahan. Dirancang untuk daya tahan dan keandalan, gearbox pertanian ini memastikan transmisi daya yang konsisten untuk memenuhi berbagai tuntutan operasional di berbagai kondisi lahan dan jenis pupuk.
Equipped with a precision series of gears and shafts, the gearbox for fertilizer spreader applications adjusts rotational speed and torque based on the spreading requirements, optimizing overall machine performance. Its compact aluminium housing keeps weight at just 4.1 kg while ensuring structural integrity under demanding agricultural conditions. Built to withstand the rigorous environments of chemical fertiliser application, this fertiliser spreader gearbox plays a crucial role in enhancing the efficiency and effectiveness of key farming tasks, including grain crop nutrition programs, pasture fertilization, and lawn or turf management. As a direct Comer L-25A replacement, installation is straightforward with matched splines and mounting dimensions, minimizing machine downtime during the growing season.

Parameter Teknis
| Model | Gearbox L-25A 3.3:1 |
| Ganti Merek | Pendatang |
| Detail produk | - Semua gearbox dipasok tanpa oli. - First oil change after 50-70 operating hours, then after 500- 700 operating hours or at least once a year. - Hubungi kami untuk daya pada RPM yang berbeda. |
| Rentang aplikasi | - Berbagai aplikasi (pertanian) - Penyebar pupuk kimia - Gergaji pita |
| Faktor rasio | 3.3:1 |
| Daya masukan maksimum | 2.2 kW |
| Kecepatan rotasi input maksimum | 540 r/min |
| Daya keluaran maksimum | 2.2 kW |
| Daya keluaran maksimum | 3 HP |
| Torsi keluaran maksimum | 124 N·m |
| Diameter luar sambungan 1 | 25 mm |
| Diameter luar sambungan 2 | 25 mm |
| Sambungan 3 diameter luar | 25 mm |
| Gear arrangement reducing | 5-6 |
| Mengandung minyak | TIDAK |
| Kapasitas oli maksimum | 0,35 liter |
| Penggantian oli maksimal selang | 500 jam |
| Tingkat kekentalan oli SAE | 80W-90 |
| Bahan perumahan | Aluminium |
| Berat | 4,1 kg |
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



Key Benefits of L-25A Fertilizer Spreader Gearbox 3.3:1
1. Antarmuka PTO dan Kompatibilitas Spline
Poros input gearbox penyebar pupuk ini dikerjakan dengan presisi untuk menyesuaikan dengan spline PTO traktor standar yang beroperasi pada 540 RPM, memastikan koneksi yang aman dan bebas getaran. Pencocokan PTO yang tepat sangat penting di lapangan, karena spline yang tidak cocok menyebabkan ketidaksejajaran poros penggerak, keausan bantalan yang dipercepat, dan potensi kegagalan poros. CMN L-25A memiliki koneksi berdiameter luar 25 mm pada ketiga poros, memberikan opsi kopling serbaguna untuk berbagai konfigurasi penyebar dan pengaturan poros penggerak PTO.
2. Gearbox Ratio and Output Options
The 3.3:1 fertilizer spreader gearbox ratio is carefully selected to convert 540 RPM tractor PTO input into the precise output speed needed for consistent spinner disc performance. This ratio ensures the disc rotates at the ideal RPM for uniform granule distribution across varying working widths. The gearbox supports multiple output shaft configurations, enabling compatibility with different disc mounts, agitator drives, and twin-disc spreader designs, making it a versatile core component for a wide range of machines.
3. Konstruksi Aluminium Tahan Korosi
Fertilizer compounds including ammonium nitrate, urea, and potassium chloride are highly corrosive to unprotected metal components. The L-25A uses a lightweight yet robust aluminium alloy housing with specialized protective coatings, sealed precision bearings, and high-durability gaskets throughout. This corrosion-resistant construction prevents chemical ingress during extended application seasons, protecting internal gears and shafts from degradation. The aluminium housing also reduces overall machine weight, benefiting PTO load management on compact tractors.
4. Integrasi Pengaduk dan Penggerak Cakram
The L-25A is engineered with a multi-output shaft configuration (X, Y, Z axes with 25 mm outside diameter connections) to simultaneously drive spinning discs and agitator mechanisms where spreader designs require it. Agitators prevent material bridging in the hopper, a common problem with hygroscopic fertilizers in humid conditions, ensuring continuous, uninterrupted flow to the spreading discs. This integrated dual-drive capability reduces the need for additional gearbox stages and simplifies the spreader drivetrain overall.
5. Field Serviceability and Maintenance Access
Memantau level oli gearbox penyebar pupuk dan melakukan perawatan rutin menjadi mudah dengan sumbat pengisian, pengurasan, dan level yang mudah diakses pada L-25A. Ventilasi pernapasan terintegrasi mencegah penumpukan tekanan selama siklus termal di lapangan, sementara titik inspeksi memungkinkan pemeriksaan visual cepat di antara operasi. Gearbox menampung hingga 0,35 liter oli gir SAE 80W-90, dengan penggantian oli pertama direkomendasikan pada 50 hingga 70 jam operasi dan selanjutnya pada interval 500 jam atau setiap tahun, meminimalkan waktu servis dan menjaga waktu henti seminimal mungkin.
6. Kompatibilitas Penggantian Direct Comer L-25A
Engineered as a precise OEM-equivalent replacement for the original Comer L-25A, this agricultural gearbox for fertilizer spreader applications matches all critical mounting dimensions, spline profiles, and shaft diameters of the original unit. Operators do not need to modify machine brackets, shielding, or driveshafts for installation. This direct compatibility makes it one of the most practical and cost-effective solutions among fertilizer spreader gearbox parts available from global suppliers, reducing both procurement lead times and installation labor costs significantly.

How Does the L-25A Gearbox Work
The L-25A fertilizer spreader gearbox begins its operation the moment the tractor PTO shaft engages. Tractor PTO output, standardized at 540 RPM for most compact and mid-range tractors, is delivered to the input shaft of the gearbox. Through the internal 3.3:1 bevel or angular gear reduction stage (gear arrangement 5-6), this 540 RPM input is converted into a lower output speed with proportionally increased torque, reaching up to 124 N·m at the output shaft. This speed-torque transformation is fundamental to proper spreading performance: too high an output RPM causes uneven granule throw patterns and over-spreading at field edges, while too low a speed results in poor distribution width and nutrient deficiency patches. The 3.3:1 ratio of this gearbox is specifically calibrated for single-disc and twin-disc centrifugal fertilizer spreaders, producing the optimal disc rotational speed for uniform distribution of granular fertilizers, lime, seed, and other agricultural amendments.
Unlike single-output industrial gearboxes, the L-25A is designed with three output connection points (X, Y, and Z axes), each with a 25 mm outside diameter, allowing the power flow to be directed simultaneously or selectively to different driven components within the spreader. In practical field operation, the primary output (Z-axis) typically drives the main spreading disc or discs, while the secondary output can be routed to an agitator shaft within the hopper. This multi-axis architecture is particularly valuable on larger-capacity spreaders where material flow consistency is critical for maintaining accurate application rates across entire field sections. The gearbox housing centres all these axes within a compact aluminium body weighing only 4.1 kg, simplifying installation on both trailed and mounted spreader frames.
The aluminium alloy housing provides structural rigidity while reducing overall component weight compared to cast iron alternatives. Internal gear surfaces are finish-ground to tight tolerances, ensuring smooth meshing under the full 2.2 kW (3 HP) input load and minimizing heat generation during sustained operation. Sealed bearing units at all shaft entry points prevent fertilizer dust, soil particles, and moisture from contaminating the gear oil, which is specified at SAE 80W-90 viscosity. The oil film established between gear teeth and bearing races is the primary protection against metal-to-metal wear. Without adequate lubrication, tooth pitting, spalling, and eventual gear failure occur rapidly, particularly in the corrosive chemical environment of fertilizer spreading operations.
Selama pengoperasian lapangan terus menerus, persambungan roda gigi menghasilkan panas yang meningkatkan suhu muatan oli 0,35 liter di dalam rumah roda gigi. Seiring peningkatan suhu, tekanan di dalam rumah roda gigi yang tertutup rapat juga meningkat. Ventilasi pernapasan terintegrasi menyeimbangkan tekanan internal ini untuk mencegah kegagalan segel dan kebocoran oli di sekitar titik masuk poros. Fitur yang tampaknya kecil ini sangat penting untuk keandalan gearbox jangka panjang: tanpa ventilasi yang efektif, segel oli akan terdorong keluar di bawah tekanan internal, yang akhirnya memungkinkan senyawa pupuk korosif untuk mencemari oli dan mempercepat keausan internal. Sistem ventilasi CMN L-25A dirancang untuk beban termal maksimum yang diharapkan pada pengoperasian terus menerus 540 RPM, memastikan penyeimbangan tekanan yang aman sepanjang hari kerja tanpa memerlukan intervensi operator. Di akhir setiap musim, pengurasan oli lengkap dan pengisian ulang dengan oli roda gigi SAE 80W-90 yang baru menghilangkan kontaminan dan produk sampingan asam yang terakumulasi dari paparan pupuk kimia, mengatur ulang tingkat perlindungan untuk musim tanam berikutnya.

Aplikasi Gearbox Penyebar Pupuk
Orchards and Vineyards
Penyebaran pupuk presisi di kebun buah dan kebun anggur membutuhkan aplikasi terkontrol yang menargetkan zona akar tanpa memberikan pupuk berlebihan di ruang antar baris atau mencemari sumber air. Torsi keluaran stabil L-25A (hingga 124 N·m) memastikan kinerja cakram yang konsisten bahkan saat beroperasi pada beban input yang lebih rendah dari maksimum, seperti yang umum terjadi pada konfigurasi penyebar pupuk di kebun dengan baris sempit. Presisi ini melindungi sistem akar yang sensitif dan memastikan bahwa tanaman pohon dan anggur bernilai tinggi menerima input nutrisi yang akurat sepanjang siklus pertumbuhan.
Pengelolaan Padang Rumput
In livestock and dairy farming, pasture productivity depends heavily on balanced fertilizer programs. This agricultural gearbox enables centrifugal spreaders to apply granular lime, ammonium nitrate, and compound fertilizers evenly across permanent pastures and paddocks. Consistent spreading maintains forage grass quality throughout the season, supporting healthy livestock grazing and reducing the supplementary feed costs associated with poor pasture nutrition. The corrosion-resistant construction handles the aggressive nature of calcium ammonium nitrate and similar pasture fertilizers.
Pertanian Tanaman
The L-25A fertilizer gearbox is essential for the uniform application of nitrogen, phosphorus, and potassium fertilizers across high-value crops including wheat, corn, soybeans, and vegetables. Consistent spreading at the correct rate directly influences nutrient uptake efficiency, reducing waste and improving yield per hectare. The 3.3:1 ratio provides the precise disc RPM needed to achieve even distribution across full working widths without streaking or under-application in headlands.
Pengelolaan Rumput dan Lahan
For commercial turf management on sports fields, golf courses, and municipal parks, precision nutrient application is critical for appearance and playing surface quality. The L-25A fertilizer spreader gearbox provides the stable, consistent output speed needed for accurate spreader calibration across variable travel speeds. Its lightweight aluminium housing makes it suitable for smaller PTO-driven tractor spreaders used on golf fairways and sports pitches, where machine weight and turf surface pressure are important operational considerations.
Penataan Lanskap dan Berkebun
For professional landscapers and large garden contractors using compact tractor-mounted spreaders, the L-25A offers a reliable and affordable fertilizer gearbox solution. Its 2.2 kW input power rating is well-suited to small-framed tractors in the 20 to 40 HP range commonly used in landscaping work. Controlled fertilizer application using this gearbox supports the establishment of new plantings, flower beds, and garden turf areas where over-application of nutrients could cause scorching or environmental runoff issues.
Horticulture and Nurseries
Greenhouse and nursery operations require precise, low-volume fertilizer applications without over-application that can damage sensitive root systems. The 3.3:1 fertilizer spreader gearbox ratio delivers controlled disc speeds suitable for both coarse and fine granular fertilizer products used in horticulture. The compact, lightweight design of the L-25A allows it to be fitted to small-scale PTO-driven spreaders used between polytunnel rows and in outdoor nursery beds, providing accurate distribution for ornamental plants, bedding plants, and container-grown stock.
Perbaikan Tanah
Beyond fertilizers, this fertilizer distributor gearbox is effective for spreading agricultural lime, gypsum, dolomite, and organic granular compost products used for soil pH correction and structure improvement. These materials are often heavier and more abrasive than standard fertilizers, making the robust sealed bearing arrangement and corrosion-resistant housing particularly valuable. Uniform lime spreading at correct application rates significantly impacts long-term soil health and the effectiveness of subsequent fertilizer programs.
Seed and Granule Spreading
Beyond conventional fertilizer products, the L-25A gearbox powers spreaders used for oversowing grass seed, applying slug pellets, distributing sand dressings on sports pitches, and spreading granular pesticide products. The consistent output speed provided by the 3.3:1 ratio ensures repeatable spread patterns regardless of the granule density or size, making it a versatile drive component across multiple agricultural and land management spreading tasks throughout the year.

L-25A Fertilizer Distributor Gearbox Components
Rumah Gearbox Aluminium
The housing is precision die-cast from high-strength aluminium alloy, providing a rigid, dimensionally stable enclosure for all internal components. At just 4.1 kg total weight, the housing significantly reduces machine-mounted load on spreader frames compared to cast iron alternatives. Internal surfaces are machined to exact tolerances for precise bearing seat and gear alignment. The housing also incorporates mounting flanges compatible with standard Comer L-25A mounting patterns, ensuring bolt-in replacement without frame modification.
Poros Masukan
The input shaft is manufactured from high-tensile alloy steel with a splined profile designed to match standard tractor PTO driveshafts. It is supported by precision angular contact bearings that handle both the radial load from gear meshing and the axial load from PTO driveshaft coupling. The shaft surface is hardened for wear resistance at the spline engagement zone, ensuring long-term dimensional stability even under repeated attachment and detachment of PTO drive shafts in seasonal farm use. The 25 mm outside diameter provides robust engagement with standard agricultural PTO couplings.
Set Roda Gigi Bevel
The angular power transmission within the L-25A is achieved through a precision-cut bevel gear pair providing the 3.3:1 reduction ratio. Bevel gear teeth are cut to DIN accuracy standards and heat-treated for surface hardness combined with a tough core, maximizing resistance to contact fatigue and tooth breakage under shock loading. The gear mesh geometry is optimized to minimize noise and vibration during operation, which is particularly important for operators working near the spreader for extended periods during field applications.
Output Shafts (X, Y, Z)
Three output shaft positions (X, Y, and Z axis) are available with 25 mm outside diameters, providing flexible connection options for different spreader designs. Each output shaft is machined from alloy steel and supported by radial ball bearings dimensioned for the maximum 124 N·m torque output. The shaft ends feature keyway slots or spline profiles as specified for the target application, enabling secure coupling to disc hubs, agitator shafts, or other driven components without slippage under full operating load.
Sealed Precision Bearings
Semua posisi poros di dalam L-25A ditopang oleh bantalan bola alur dalam tertutup atau bantalan kontak sudut yang dipilih untuk profil beban radial dan aksial gabungan di setiap lokasi. Segel bantalan yang dipasang di pabrik mencegah debu pupuk dan kelembapan masuk ke dalam alur bantalan sekaligus mempertahankan muatan gemuk integral bantalan sepanjang masa pakainya. Dudukan bantalan di dalam rumah aluminium dibor dengan presisi untuk pemasangan interferensi yang rapat, mencegah pergerakan mikro dan korosi gesekan yang mengurangi masa pakai bantalan pada mesin yang beroperasi di lingkungan pertanian dengan getaran tinggi.
Shaft Oil Seals
Rotary shaft seals are fitted at each shaft exit point through the housing wall, providing a dynamic sealing barrier that prevents gear oil from leaking out and contaminating fertilizer material, while simultaneously blocking fertilizer dust and chemicals from entering the oil sump. The seal lip material is selected for chemical compatibility with SAE 80W-90 gear oil and resistance to the aggressive chemical compounds found in urea, ammonium nitrate, and other common fertilizer formulations, ensuring long seal life without swelling or hardening.
Sistem Pelumasan
The L-25A uses a splash lubrication system where the rotation of the lower bevel gear churns the 0.35-litre SAE 80W-90 oil charge, flinging lubricant onto all gear surfaces and bearing races during operation. Fill, level, and drain plugs are accessible from the exterior of the housing for straightforward oil level checks and changes in the field. SAE 80W-90 gear oil provides the viscosity film needed at fertilizer spreader operating temperatures, protecting all gear and bearing surfaces from direct metal contact throughout the full service interval of up to 500 operating hours.
Breather Vent
Ventilasi penyeimbang tekanan merupakan komponen kecil namun penting dalam sistem keandalan L-25A. Selama pengoperasian, perputaran roda gigi dan perubahan suhu lingkungan menyebabkan campuran udara-oli di dalam rumah mesin mengembang dan menyusut. Tanpa ventilasi, perbedaan tekanan ini memberi tekanan pada seal oli poros, yang akhirnya memaksa seal tersebut keluar dari posisinya dan memungkinkan terjadinya kebocoran. Ventilasi ini menggabungkan jalur filter yang rumit yang memungkinkan penyeimbangan tekanan udara sekaligus mencegah percikan oli cair keluar dan menghalangi masuknya partikel pupuk atau air ke dalam bagian dalam rumah mesin.

How to Properly Maintain Your Fertilizer Spreader Gearbox
1. Initial Oil Fill Before First Use
The L-25A is supplied completely dry without oil. Before operating the gearbox for the first time, fill it with the correct quantity of SAE 80W-90 gear oil up to the level indicated by the oil level plug. Use a clean funnel to avoid introducing contamination. Fill slowly to allow trapped air to escape. Failure to add oil before first operation will result in immediate and severe gear and bearing damage within minutes of running, causing premature failure that voids any warranty coverage on the unit.
2. First Oil Change at 50 to 70 Hours
Perform the first fertilizer spreader gearbox oil level change after 50 to 70 operating hours. This critical early service interval removes metal particles generated during the initial bedding-in period when gear tooth surfaces and bearing races are polishing to their final running geometry. These fine metallic particles are abrasive and will accelerate wear if left in the oil. Drain the old oil warm after operation, flush briefly with fresh oil if the drained oil appears dark or metallic, then refill with 0.35 litres of fresh SAE 80W-90.
3. Regular Oil Changes Every 500 Hours or Annually
Following the initial change, renew the gear oil every 500 operating hours or at minimum once per year, whichever interval comes first. Agricultural gearboxes operating in fertilizer environments are subject to oil contamination from acid byproducts of fertilizer chemical reactions, absorbed moisture from humid operating conditions, and ongoing fine metallic wear particles. Regularly renewed SAE 80W-90 oil maintains full lubrication film integrity between all gear and bearing surfaces, preventing the progression of surface fatigue and extending service life well beyond average industry replacement intervals.
4. Inspect Oil Seals and Housing for Leaks
Before each operating season and periodically during intensive spreading campaigns, inspect all shaft exit points and housing joint faces for evidence of oil seepage or active oil leaks. A thin film of oil around a shaft seal indicates seal lip wear that will progress to a full leak. Replacement shaft seals are standard metric sizes and are available from CMN as fertilizer spreader gearbox parts. Addressing seal leaks promptly prevents oil starvation of internal gears and avoids environmental contamination of soil and water from mineral oil spillage during field operations.
5. Clean the Gearbox Exterior After Each Season
Fertilizer residue accumulating on the gearbox exterior is highly corrosive, particularly in humid storage conditions. After the spreading season concludes, thoroughly clean the external surfaces of the aluminium housing using water and a mild detergent, paying particular attention to crevices around shaft exits, mounting flanges, and plug recesses where fertilizer granules and dust accumulate. Allow the gearbox to dry completely before storage to prevent moisture-accelerated corrosion of the housing surface, fasteners, and exposed shaft sections. A light coat of spray oil on exposed shaft ends provides additional corrosion protection during off-season storage.
6. Check and Clean the Breather Vent
Inspect the breather vent for blockage at each pre-season service. Fertilizer dust mixed with oil mist can slowly clog the vent passage, preventing effective pressure equalization during operation. A blocked vent creates internal positive pressure that forces gear oil past shaft seals, leading to rapid oil loss and dry running damage. Remove the breather and flush it with clean solvent or compressed air to confirm free airflow before the spreading season commences. This two-minute check can prevent costly gearbox failures that would otherwise require complete unit replacement mid-season.
7. Monitor for Unusual Noise or Vibration
During operation, pay attention to any change in running noise or vibration from the gearbox area. A regular grinding noise may indicate bearing wear or contamination. A metallic knocking sound suggests gear tooth damage or a loose internal component. Increased vibration transmitted through the spreader frame can indicate shaft misalignment or bearing failure. Catching these symptoms early allows repair or replacement before catastrophic failure causes damage to the spreading discs, PTO driveshaft, or spreader frame. Contacting a CMN technical representative promptly when abnormal symptoms appear minimizes total repair costs.

Fertilizer Spreader Gearbox and PTO Driveline Shaft
Poros penggerak daya (PTO) dan kotak roda gigi penyebar pupuk membentuk jantung dari keseluruhan sistem penggerak penyebar pupuk. PTO traktor adalah poros keluaran putar standar, biasanya digerakkan dari transmisi traktor pada 540 RPM (dan pada traktor yang lebih besar pada 1000 RPM untuk alat-alat bertenaga lebih tinggi). Energi rotasi ini secara mekanis disalurkan melalui poros penggerak teleskopik dengan sambungan universal, yang biasa disebut poros PTO atau poros kardan, dari traktor ke kotak roda gigi yang terpasang pada penyebar. Tanpa sambungan sistem penggerak ini, cakram atau auger penyebar tidak memiliki sumber daya dan tidak dapat berfungsi.
Gearbox penyebar pupuk L-25A melakukan transformasi mekanis mendasar pada energi rotasi poros PTO. Pada input 540 RPM, set roda gigi reduksi 3,3:1 mengubah kecepatan ini menjadi RPM output yang lebih rendah, sekaligus meningkatkan torsi output dari input PTO yang relatif rendah hingga 124 N·m pada poros output. Amplifikasi torsi ini sangat penting karena cakram berputar pada penyebar pupuk membutuhkan kecepatan rotasi yang relatif rendah tetapi gaya putar yang besar untuk melemparkan bahan pupuk granular ke seluruh lebar kerja mesin, yang dapat berkisar dari 6 hingga 28 meter pada penyebar modern tergantung pada bahan dan konfigurasi baling-baling.
Poros PTO yang menghubungkan traktor ke gearbox harus dicocokkan dengan cermat baik dengan poros PTO traktor maupun spesifikasi poros input gearbox. L-25A menerima poros penggerak PTO standar dengan kopling betina yang sesuai untuk poros input berdiameter 25 mm. Poros penggerak itu sendiri memiliki dua sambungan universal di kedua ujungnya, memungkinkan traktor untuk berartikulasi untuk kemudi dan penyesuaian ketinggian alat sambil mempertahankan transmisi daya terus menerus ke gearbox penyebar. Bagian poros dalam dan luar yang dapat diperpanjang mengakomodasi panjang yang bervariasi antara PTO traktor dan input gearbox saat sambungan tiga titik traktor dinaikkan dan diturunkan, dan saat traktor berbelok di lapangan.
Faktor penting dalam memperpanjang umur pakai gearbox adalah sudut operasi poros penggerak PTO. Sambungan universal pada poros penggerak menghasilkan getaran siklik saat beroperasi pada sudut yang curam, dan getaran ini ditransmisikan langsung sebagai beban impuls ke bantalan poros input gearbox. Bantalan poros input L-25A dirancang untuk sudut kerja normal, tetapi pengoperasian terus-menerus pada sudut poros PTO yang curam di atas 15 hingga 20 derajat akan secara signifikan memperpendek umur pakai bantalan. Pemilihan panjang poros PTO yang tepat dan perhatian yang cermat terhadap jarak traktor ke alat penyebar pupuk selama penyambungan mencegah sudut poros penggerak yang berlebihan dan melindungi gearbox dari keausan yang dipercepat ini.
Poros penggerak PTO modern untuk aplikasi penyebar pupuk juga dilengkapi dengan kopling bebas (freewheel) yang memungkinkan cakram penyebar terus berputar sebentar setelah PTO dilepas, menyerap inersia rotasi cakram yang berputar tanpa membalikkan torsi kembali melalui gearbox. Fitur ini sangat penting saat berbelok di ujung lahan: operator melepas PTO sebelum berbelok untuk menghentikan penyebaran material, dan kopling bebas memungkinkan sisa putaran cakram untuk mereda dengan aman tanpa membebani poros input gearbox atau menyebabkan getaran poros penggerak. Memilih poros PTO dengan pelindung keselamatan yang sesuai, profil yang benar (bulat, lemon, bintang, atau sudut lebar tergantung pada penyebar) dan spesifikasi kopling bebas sama pentingnya dengan memilih gearbox yang tepat untuk aplikasi penyebar pupuk.
![]() | ![]() |
Gearbox Penyebar Pupuk vs Gearbox Mesin Pemotong Rumput Flail
Apa Itu Gearbox Penyebar Pupuk?
A fertilizer spreader gearbox, also called a fertilizer distributor gearbox, is the central power transmission component of centrifugal or spinner-disc fertilizer spreading machines. It receives rotational input from the tractor PTO, reduces speed through a precision gear reduction stage, and drives one or more spinning discs or agitators to distribute granular fertilizers, lime, seed, or other agricultural products uniformly across the field.
Key Advantages:
- Lightweight aluminium housing minimizes total spreader machine weight
- Corrosion-resistant design handles aggressive fertilizer chemical environments
- Multiple output shaft configurations for disc and agitator drive
- Precise gear ratios calibrated for optimal disc spreading RPM
- Simple, accessible lubrication system suitable for field servicing
Aplikasi: Chemical fertilizer spreaders, lime and gypsum spreaders, seed broadcasters, granular pesticide applicators, sand dresser spreaders for turf, organic granule distributors, and compost top-dressing machines across arable, pastoral, horticultural, and turf management sectors.
Apa Itu Gearbox Mesin Pemotong Rumput Flail?
A flail mower gearbox is the core power transmission unit in a flail mower, designed to convert high-speed, moderate-torque tractor PTO input into the lower-speed, very high-torque output required to spin a heavy flail rotor carrying multiple impact hammers or Y-blades. The rotor must generate sufficient tip speed and inertia to chop standing vegetation, crop stalks, or light brush at high throughput rates, placing very different demands on the gearbox compared to a fertilizer spreader application.
Key Advantages:
- Heavy-duty cast iron or alloy steel housing handles extreme shock loads
- High-torque output shafts drive large diameter, heavy flail rotors
- Overload protection through slip clutch or shear bolt mechanisms
- Robust sealing for extremely dusty vegetation cutting conditions
- Large oil capacity for sustained high-power operation
Aplikasi: Grass and pasture flail mowing, roadside vegetation management, orchard floor mulching, vineyard row maintenance, crop residue incorporation, light brush cutting, verge management for local authorities, and amenity grass area maintenance.
Perbandingan Berdampingan
| Fitur | Gearbox Penyebar Pupuk | Gearbox Mesin Pemotong Rumput Flail |
|---|---|---|
| Fungsi Utama | Speed reduction to drive spinning disc at spreading RPM | Speed reduction with high-torque output for rotor cutting inertia |
| Typical Housing Material | Aluminium alloy (lightweight priority) | Cast iron or alloy steel (strength priority) |
| Berat Khas | 3 to 8 kg (compact and light) | 15 to 60+ kg (heavy duty) |
| Output Torque Range | Up to 124 N·m (L-25A) | 200 N·m to 2000+ N·m |
| Main Environmental Hazard | Chemical corrosion from fertilizer compounds | Abrasive dust, plant debris, and impact shock loads |
| Konfigurasi Keluaran | 1 to 3 outputs (disc and agitator drive) | Single output (rotor shaft drive) |
| Perlindungan Beban Berlebih | Generally not required (low shock environment) | Essential: slip clutch or shear bolt on input |
| Kapasitas Minyak | 0.35 L (L-25A) | 0.8 L to 3+ l |
| Seasonal Corrosion Risk | High (chemical fertilizer exposure) | Moderate (plant sap, moisture, abrasion) |

Mengapa Memilih Gearbox Penyebar Pupuk dari CMN Transmission?
Korea CMN Transmission Co., Ltd. didirikan pada tahun 2000 dan berkantor pusat di Sandan-o, Danwon-gu, Ansan-si, Gyeonggi-do, Korea. Dengan lebih dari 100 karyawan pabrik yang berdedikasi dan lebih dari dua dekade spesialisasi yang terfokus, CMN Transmission telah berkembang dari produsen regional menjadi pemasok gearbox pertanian yang diakui secara global, mengekspor ke lebih dari 60 destinasi di seluruh dunia dan mendapatkan reputasi untuk kualitas, konsistensi, dan keandalan teknis di beberapa pasar pertanian paling menuntut di dunia.
Rangkaian produk CMN Transmission sangat komprehensif, meliputi gearbox pemotong putar, gearbox pembajak putar, gearbox pengaduk pakan, gearbox pemotong rumput putar, gearbox penyebar pupuk, gearbox pemotong rumput flail, gearbox penggali lubang tiang, gearbox mesin pengepak jerami bundar, gearbox mesin pengepak jerami persegi, gearbox pemotong rumput cakram, gearbox irigasi poros tengah, gearbox penggerak hidrolik, gearbox mesin silase, gearbox penyemprot kebun, gearbox penggaruk putar, gearbox mesin pemanen gabungan, gearbox penyimpanan biji-bijian, gearbox pengangkutan biji-bijian, gearbox kepala pemanen jagung, gearbox batang pemotong, dan gearbox pemberian pakan unggas. Solusi gearbox pertanian khusus yang mencakup hampir seribu spesifikasi juga tersedia untuk mitra OEM yang membutuhkan rasio atau konfigurasi khusus di luar rentang katalog standar.
With an annual production output exceeding 500,000 units, CMN Transmission consistently delivers reliable performance and long-term durability across all product categories. Quality management is underpinned by ISO 9001 certification, CE conformity marking, Environmental Management certification, and Occupational Health and Safety certification, providing global OEM customers and distributors with documented assurance of production consistency and product safety compliance in all major export markets.
Produk CMN Transmission diekspor secara aktif ke Amerika Serikat, Kanada, Meksiko, Brasil, Argentina, Prancis, Jerman, Italia, Spanyol, Inggris Raya, Rusia, Cina, India, Thailand, Vietnam, Turki, Australia, Selandia Baru, dan banyak pasar tambahan lainnya di seluruh benua yang berpenduduk. Jaringan distribusi global ini memastikan bahwa pelanggan di seluruh dunia dapat mengakses gearbox pertanian CMN asli untuk aplikasi penyebar pupuk dengan dukungan logistik yang andal dan layanan teknis purna jual yang responsif.
When you choose CMN Transmission as your fertilizer spreader gearbox supplier, you gain access to a manufacturer that has invested over 20 years in understanding the specific demands of agricultural power transmission, supported by engineering capability to provide custom solutions, and backed by a global service network. Whether you are a machine OEM requiring consistent volume supply, a regional distributor building inventory of replacement parts, or an individual farmer seeking a dependable and cost-effective replacement for worn machinery, CMN Transmission has the technical expertise and production capacity to meet your requirements with confidence.

Pertanyaan yang Sering Diajukan
Q: Is the CMN L-25A a direct replacement for the Comer L-25A gearbox?
A: Ya. Gearbox penyebar pupuk CMN L-25A dirancang sebagai pengganti yang presisi secara dimensi dan fungsional untuk Comer L-25A asli. Pola baut pemasangan, diameter poros (25 mm pada ketiga titik sambungan), dimensi rumah, dan rasio roda gigi 3,3:1 semuanya sesuai dengan spesifikasi OEM Comer. Dalam sebagian besar aplikasi penggantian langsung, tidak diperlukan modifikasi pada rangka penyebar, poros penggerak, atau pemasangan cakram. Selalu periksa kembali dimensi pemasangan penyebar spesifik Anda dengan gambar dimensi CMN sebelum memesan jika mesin sebelumnya telah dipasangi suku cadang non-Comer.
Q: What oil should I use in the L-25A fertilizer spreader gearbox?
A: The recommended lubricant is SAE 80W-90 GL-4 or GL-5 mineral gear oil. This viscosity grade provides the correct oil film thickness at fertilizer spreader operating temperatures to protect bevel gear tooth surfaces and all bearing races. The gearbox holds a maximum of 0.35 litres. Do not substitute engine oil, hydraulic fluid, or other lubricant types, as incorrect viscosity or additive chemistry can reduce gear and bearing protection and shorten gearbox service life significantly. Always use a clean funnel and confirm the level with the oil level plug before first operation.
Q: When should I change the oil in my fertilizer spreader gearbox?
A: Perform the first oil change after 50 to 70 operating hours. This early service removes metallic particles generated during the initial running-in period when gear tooth surfaces are polishing to their final geometry. After the first change, renew the oil every 500 operating hours or at minimum once per year, whichever comes first. In fertilizer spreading applications, annual oil renewal at the end of the spreading season is strongly recommended even if 500 hours has not been reached, as acid byproducts from fertilizer chemical reactions can contaminate and degrade gear oil quality over storage periods.
Q: What does the 3.3:1 fertilizer spreader gearbox ratio mean for spreading performance?
A: The 3.3:1 ratio means that for every 3.3 revolutions of the PTO input shaft, the output shaft completes one revolution. At a standard 540 RPM PTO input, the output shaft rotates at approximately 164 RPM. This output speed is the designed operating RPM for the type of spinning disc used in the spreader this gearbox is designed to power. The correct disc RPM ensures granules are thrown at the right velocity to achieve the specified working width and distribution pattern. Using an incorrect gear ratio results in either under-throwing (poor working width) or over-throwing (uneven patterns) of fertilizer material.
Q: Can I use the L-25A gearbox at 1000 RPM PTO instead of 540 RPM?
A: No. The L-25A is rated for a maximum input speed of 540 r/min. Operating the gearbox with a 1000 RPM PTO input exceeds this rating by 85%, which will rapidly overload and destroy internal bearings and gear tooth surfaces. If your tractor only has a 1000 RPM PTO, the L-25A is not compatible. Contact CMN Transmission directly to discuss whether an alternative model rated for 1000 RPM PTO input is available for your specific spreader application. Never attempt to run the gearbox above its maximum rated input speed under any circumstances.
Q: How do I check the oil level in the fertilizer spreader gearbox?
A: Position the gearbox in its normal installed orientation on the spreader. Remove the oil level plug (typically located on the side of the housing at the correct fill level position). Oil should be level with the bottom of the level plug hole. If oil flows out when the plug is removed, the level is correct. If the hole is dry, the level is low and oil should be added via the fill plug until oil reaches the level plug hole. Always use the correct SAE 80W-90 gear oil when topping up. Replace both plugs securely after checking to prevent contamination entry or leakage during operation.
Q: Why is my fertilizer spreader gearbox leaking oil?
A: The most common causes of oil leakage from fertilizer spreader gearboxes are worn or damaged shaft oil seals, a blocked breather vent causing internal pressure buildup that forces oil past seals, loose or damaged fill or drain plugs, or housing gasket deterioration. Inspect all shaft exit points for oil weeping. Check that the breather vent is unobstructed and allows free airflow. Replacement oil seals and gaskets are available from CMN as standard fertilizer spreader gearbox parts. If the housing itself shows cracks, contact CMN for a complete replacement unit rather than attempting housing repair.
Q: What is the difference between a fertilizer spreader gearbox and a fertilizer distributor gearbox?
A: There is no functional difference. Fertilizer spreader gearbox and fertilizer distributor gearbox are different names for the same type of agricultural power transmission unit. The term spreader gearbox emphasizes the spreading function, while distributor gearbox emphasizes the distribution of material. Both terms describe a gearbox that takes PTO rotational input and drives a spinning disc, auger, or agitator mechanism to distribute granular agricultural products including fertilizers, lime, seed, and soil amendments across field or turf surfaces. The CMN L-25A is referred to by both names in different markets worldwide.
Q: How long does the CMN L-25A fertilizer spreader gearbox typically last?
A: With correct installation, proper initial oil filling, timely oil changes at the specified intervals (first at 50 to 70 hours, then every 500 hours or annually), and regular cleaning of fertilizer residue from the exterior, the CMN L-25A can provide many seasons of reliable service. The most common causes of premature gearbox failure are operating without sufficient oil, neglecting oil changes, allowing fertilizer to corrode the housing and seals, running above the maximum 540 RPM rated input speed, and operating with excessive PTO driveshaft angle. Avoiding these factors is the most effective way to maximize service life.
Q: What fertilizer spreader brands and models is the L-25A compatible with?
A: As a direct replacement for the Comer L-25A, the CMN version is compatible with all spreader models that originally used the Comer L-25A gearbox with a 3.3:1 ratio, including machines from brands such as Amazone, Kuhn, Vicon, Sulky, Bogballe, and various OEM-branded spreaders that sourced their original Comer gearbox. However, spreader model ranges are extensive and some machines may use variant configurations. Always verify the shaft diameters, mounting bolt pattern, and overall housing dimensions of your specific spreader against the CMN L-25A dimensional drawing before ordering to confirm direct compatibility.

Ulasan Pelanggan
Alejandro, Pertanian Tanaman, Argentina
"Saya sudah bertani gandum dan jagung di Pampas selama lebih dari 20 tahun dan saya sudah sering mengganti gearbox, percayalah. Kami mengganti tiga unit yang aus di tengah musim dengan CMN L-25A dan jujur saja, saya tidak percaya betapa mudahnya pemasangannya. Tiba di Buenos Aires dalam kondisi bagus, spline-nya cocok sempurna di ketiga mesin, dan kami kembali melakukan penyebaran pupuk dalam waktu dua jam. Penggantian oli pertama dilakukan tepat pada 60 jam seperti yang tertera dalam instruksi, oli diperiksa dan bersih di dalamnya, tidak ada serpihan logam, tidak ada endapan gelap. Sangat terkesan dengan kualitasnya untuk harga yang kami bayar."
Richard, Pertanian Tanaman Pangan, Britania Raya
"Saya mengelola lahan pertanian campuran seluas 400 hektar di Kent dan telah menggunakan CMN L-25A selama dua musim penuh penyebaran pupuk. Saya memasangnya pada alat penyebar pupuk Amazone saya sebagai pengganti langsung unit Comer yang rusak Maret lalu. Sejujurnya, alat ini pas seperti dibuat khusus untuknya. Tidak perlu modifikasi, langsung dipasang dengan baut. Kualitas pengecoran aluminiumnya terlihat kokoh, dan setelah 180 jam saya melakukan penggantian oli dan oli yang keluar bersih. Tidak ada keluhan sama sekali dari segi kualitas produk. Pengiriman ke Inggris memakan waktu sekitar 12 hari, yang sedikit lebih lama dari yang saya harapkan, tetapi kemasannya sangat bagus."
Dave, Distributor Suku Cadang, Amerika Serikat
"Kami mendistribusikan suku cadang mesin pertanian di empat negara bagian di wilayah Midwest dan mulai menyediakan CMN L-25A sekitar delapan bulan yang lalu. Petani kami mengganti gearbox Comer yang aus dan jujur saja, tingkat kecocokannya sangat tinggi, mungkin 95% langsung pas tanpa masalah. Rasio 3,3:1 tepat untuk sebagian besar aplikasi cakram tunggal yang digunakan pelanggan kami. Kami hanya menerima dua pengembalian garansi dari 40 unit yang terjual, dan CMN menangani proses penggantian dengan cepat dan tanpa perdebatan. Tingkat dukungan purna jual seperti itu sangat penting bagi kami ketika merekomendasikan pemasok kepada pelanggan kami. Pasti akan terus memesan."
Klaus, Manajemen Padang Rumput, Jerman
"Kami mengoperasikan fasilitas peternakan besar dan menggunakan alat penyebar pupuk di seluruh area operasional kami. Kami memesan gearbox CMN L-25A sebagai pengganti unit Comer lama kami dan sangat puas. Kualitasnya bagus, dimensinya tepat, dan harganya jauh lebih rendah daripada yang terakhir kami bayarkan kepada dealer Jerman kami. Pengiriman ke Jerman memakan waktu sekitar 14 hari. Kami akan memesan 5 unit lagi selama siklus perawatan berikutnya. Sangat direkomendasikan dari pihak kami."
Marc, Pertanian Gandum, Kanada
"Saya menemukan CMN saat mencari pengganti gearbox penyebar pupuk lama saya yang macet saat pemupukan gandum musim dingin. Awalnya ragu memesan dari Korea, tetapi halaman produknya memiliki semua spesifikasi yang saya butuhkan dan dimensinya persis sama dengan Comer. Saya memesan pada hari Selasa, mendapat konfirmasi pengiriman dengan nomor pelacakan pada hari Kamis, dan gearbox tersebut sudah sampai di tangan saya di Ontario 9 hari kerja kemudian. Kemasannya kokoh, tidak ada kerusakan. Saya mengisinya dengan oli 80W-90 sesuai spesifikasi, memasangnya ke penyebar pupuk Kuhn saya, dan berfungsi dengan baik. Saya sangat senang dengan keseluruhan proses dari situs web hingga pengiriman."
Roberto, Petani Jagung, Meksiko
"Saya telah mengoperasikan traktor dan mesin pertanian selama bertahun-tahun di negara bagian Sinaloa. Saya membeli CMN L-25A untuk mengganti Comer yang rusak tepat di tengah musim pemupukan jagung. Kami memesan tiga unit, dan semuanya tiba dalam kondisi sempurna dan terbungkus rapi di Culiacan. Pemasangannya sangat mudah karena ukurannya tepat. Kami sudah menggunakannya selama 90 jam tanpa masalah. Harganya wajar dan kualitasnya meyakinkan kami. Saya pasti akan memesan lagi jika membutuhkan lebih banyak."
Shane, Manajemen Rumput, Australia
"Saya mengelola program nutrisi rumput untuk tiga lapangan golf di Queensland dan kami menggunakan alat penyebar pupuk yang digerakkan PTO untuk aplikasi pupuk di fairway. Gearbox asli pada salah satu mesin Vicon kami sudah sangat usang dan harga penggantian dari dealer lokal sangat mahal. Seorang kolega merekomendasikan CMN dan saya senang telah memesannya. L-25A tiba dalam kemasan yang rapi, terpasang sempurna, dan rasio 3,3:1 memberi kami kecepatan cakram yang tepat untuk produk granular kami. Setelah empat bulan, alat ini berjalan tanpa masalah. Saya pasti akan memesan dari CMN lagi."
Luca, Pemeliharaan Kebun Anggur, Italia
"Saya membeli dua buah untuk alat penyebar pupuk yang kami gunakan dalam produksi perkebunan anggur di Tuscany. Gearbox CMN L-25A tiba dalam kondisi baik, dengan kemasan yang memadai dan tanpa kerusakan selama pengiriman. Perakitannya mudah karena dimensinya persis sama dengan Comer asli. Kami telah menggunakannya selama 130 jam, oli diganti pada interval yang tepat, dan semuanya berfungsi dengan sempurna. Staf teknis CMN menjawab pertanyaan kami melalui email dengan jelas dan cepat. Nilai uang yang sangat baik."
Carlos, Produksi Kedelai, Brasil
"Peternakan kami di Mato Grosso memproduksi kedelai dalam skala besar, dan pemberian pupuk sangat penting untuk profitabilitas kami. Gearbox CMN L-25A tiba dengan cepat di Brasil, hanya dalam 11 hari kerja, dan kualitasnya melebihi harapan kami. Konstruksi aluminiumnya jauh lebih ringan daripada gearbox asli yang kami gunakan sebelumnya, yang membantu mengurangi beban pada mesin. Kami memasangnya tanpa modifikasi apa pun pada rangka penyebar pupuk. Kami sudah menggunakannya selama 200 jam dan masih berfungsi sempurna. Saya sangat merekomendasikannya untuk siapa pun yang membutuhkan pengganti Comer berkualitas."
Informasi Tambahan
| Diedit oleh | Yjx |
|---|





