CMN-SLX-14375 化肥撒布机变速箱，传动比 1:1.44，铝制直角，15马力，540转/分动力输出轴

The CMN-SLX-14375 Fertilizer Spreader Gearbox, also called a fertilizer distributor gearbox, is an essential component of agricultural machinery specifically engineered for soil preparation, crop treatment, and precision fertilizer spreading. Positioned at the center of the spreader machine, this agricultural gearbox transmits power directly from the tractor's power take-off (PTO) to the spinning discs or augers, ensuring fertilizer is evenly distributed across the field. With a compact aluminum right-angle housing, a standard 540 RPM PTO input, and a 1:1.44 step-up ratio delivering an output of approximately 777 RPM, it is purpose-built to optimize spinning-disc performance while keeping machine weight to a minimum. The unit handles up to 15 HP of continuous power, making it suitable for both light utility tractors and mid-range agricultural vehicles used across grain farms, pastures, orchards, and specialty crop operations worldwide.

Engineered for durability and long service life in chemically aggressive environments, the CMN-SLX-14375 fertilizer spreader gearbox features precision-cut bevel gears (23/16 teeth, Module 3.5), high-quality sealed bearings, and robust oil seals that protect internal components from fertilizer dust, moisture, and chemical corrosion. The lightweight aluminum alloy housing reduces overall implement weight without sacrificing structural rigidity, improving tractor balance and fuel efficiency during large-area spreading operations. Whether you operate a center-pivot irrigated grain field, a vineyard, a sports turf management fleet, or a horticultural nursery, this fertilizer gearbox is engineered to deliver consistent rotational speed and torque under variable load conditions. As a leading fertilizer spreader gearbox manufacturer, CMN Transmission backs every unit with ISO 9001 and CE certified quality standards, giving global OEMs and agricultural distributors the confidence of a supplier that has shipped to more than 60 countries since 2000.

技术参数

我们已完成由SGS/TÜV莱茵支持的第三方供应商审核和公司验证。该验证有助于买家了解公司身份、业务运营、供应商资质和整体生产能力。我们可根据订单要求提供产品相关的检验报告、材料文件或合规记录。

最低订购量（MOQ）： 根据产品类型和订单数量灵活设置。

示例： 新客户在适当情况下可申请 1-5 个样品。

混合订单： 支持组合不同型号；订单总金额必须达到约 $1,500。

小额订单： 我们接受 1-2 件起订，但单价会相对较高。

交货时间： 标准零件交货期为 10-25 个工作日；定制零件交货期为 20-45 个工作日；项目设备交货期为 45-120 个工作日。

贸易条款： EXW、FOB、CIF 和 DAP 一般支持；FCA、CFR、CPT、CIP 和 DDP 条款可具体协商。

Features of the CMN-SLX-14375 Fertilizer Spreader Gearbox

1. PTO Interface & Spline Compatibility
The CMN-SLX-14375 input shaft is machined to accept the industry-standard 1-3/8 inch Z6 (6-spline) PTO stub, matching the 540 RPM standard found on the vast majority of agricultural tractors from 20 HP to 100 HP. This precise spline compatibility eliminates adapter bushings, reduces runout, and prevents the vibration, misalignment, and accelerated wear that occur when non-standard interfaces are forced together. The result is a clean, low-vibration power path that protects both the gearbox and the tractor PTO shaft over thousands of operating hours.

2. Optimized 1:1.44 Ratio for Spinner-Disc Performance
The carefully engineered fertilizer spreader gearbox ratio of 1:1.44 steps up the 540 RPM tractor PTO to approximately 777 RPM at the output shaft, delivering the rotational speed required to achieve wide, even throw patterns across the full spreading width. The 23/16 bevel tooth count and Module 3.5 specification ensure smooth meshing with minimal noise and heat generation under sustained load. Alternative configurations are also available from CMN Transmission to cover different spreader designs and disc-RPM requirements, making us a flexible agricultural gearbox partner for OEM customers.

3. Corrosion-Resistant Aluminum Alloy Construction
Fertilizer is one of the most corrosive substances a gearbox will encounter in regular agricultural service. The CMN-SLX-14375 addresses this with a precision die-cast aluminum alloy housing that is inherently resistant to oxidation and chemical attack from nitrogen, phosphate, and potassium-based granular fertilizers. Internal bearing seats are machined to tight tolerances, and double-lip oil seals at all shaft exits block fertilizer dust and moisture ingress. This corrosion-resistant design extends service intervals and dramatically reduces the total cost of ownership compared to standard cast-iron housings left exposed to fertilizer residue.

4. Dual-Output & Agitator Drive Integration
Several fertilizer spreader configurations in the CMN product range incorporate dual-output shaft arrangements, enabling simultaneous drive of both the main spreading disc and an internal agitator mechanism. The agitator prevents granular material from bridging or arching inside the hopper, which is a common cause of uneven spreading patterns and wasted inputs. By integrating this function into the gearbox drive rather than relying on a separate motor, the machine design stays simpler, lighter, and more reliable. This makes the CMN-SLX-14375 series an ideal basis for fertilizer spreader gearbox parts replacements or new OEM implement designs.

5. Field-Serviceable Design
Routine maintenance is made straightforward with clearly identified fill, drain, and level plugs positioned for easy access even when the gearbox is mounted on the implement. An integrated breather vent equalizes internal pressure as the oil heats and cools during operation, preventing seal blowout. The simple bolt-flange mounting interface means the unit can be removed and reinstalled with basic hand tools, reducing downtime during peak spreading seasons. For agricultural dealers and fertilizer spreader gearbox suppliers stocking aftermarket parts, the CMN-SLX-14375 is designed for fast, confident servicing in the field.

6. 广泛的农业应用
The CMN-SLX-14375 fertiliser spreader gearbox is designed to perform across the broadest possible range of agricultural spreading tasks. From large-scale broadacre grain farms and intensive vegetable production to orchard floor management, vineyard inter-row spreading, sports turf maintenance, and landscaping applications, this gearbox adapts to whatever the implement requires. Its compact footprint and light 17 kg net weight also make it suitable for sub-compact spreader designs used on ATV and small-tractor platforms, extending the CMN product advantage even into smaller-scale professional markets.

工作原理

When the tractor operator engages the PTO lever, the tractor's internal clutch pack connects the engine's power output to the rear PTO stub shaft, which spins at the standardized 540 RPM. The fertilizer spreader gearbox is connected to this stub through a PTO driveline shaft (typically a telescoping cardan shaft assembly with universal joints at each end). The input spline socket of the CMN-SLX-14375, machined to 1-3/8 inch Z6 specification, mates directly and positively with the driveline shaft's yoke end, creating a solid mechanical connection that transmits full torque without slippage.

Inside the compact right-angle aluminum housing, the input shaft carries a precision-ground bevel gear with 16 teeth (the drive pinion). This meshes at 90 degrees with the larger 23-tooth bevel wheel on the output shaft, producing the 1:1.44 step-up ratio. At 540 RPM input, the output shaft therefore delivers approximately 777 RPM to the spreader disc. The bevel gear mesh is the heart of the agricultural gearbox for fertilizer spreading: the Module 3.5 tooth form ensures a generous contact ratio and robust tooth strength capable of handling the shock loads and inertia peaks that occur when granular material suddenly releases from the hopper. All gear surfaces are case-hardened and precision-lapped for smooth, quiet operation and maximum durability.

The output shaft, presented as a machined solid shaft of Phi 25 mm diameter, connects to the spreader disc hub via a key, pin, or friction coupling depending on the implement manufacturer's design. Rotating at approximately 777 RPM and transmitting up to 15 HP of continuous mechanical power, the output shaft provides the centrifugal energy the disc needs to throw granular fertilizer particles outward in a controlled pattern. The right-angle geometry of the gearbox means the disc can be positioned horizontally beneath the hopper while the PTO drive shaft approaches from the rear in a conventional in-line orientation, simplifying implement framing and reducing material interference.

Both the input and output shafts run on matched pairs of heavy-duty tapered or deep-groove rolling element bearings selected to handle the combined radial and axial loads generated by bevel gear mesh forces. During field operation, particularly when crossing uneven ground or when disc imbalance creates transient bending moments, these bearings absorb the dynamic loads and prevent them from being transmitted destructively into the housing or gear teeth. The fertilizer spreader gearbox is therefore not merely a speed converter but a structural element of the implement's powertrain, and the bearing system is dimensioned accordingly.

The CMN-SLX-14375 operates in a splash-lubrication environment: the gear wheel dipping into the oil reservoir on each revolution picks up fluid and distributes it across gear flanks, bearing races, and shaft journals. The oil level is maintained via the fertilizer spreader gearbox oil level plug located on the housing face, which should be checked at the start of each spreading season. Double-lip radial shaft seals at every shaft exit prevent oil from weeping outward and contaminating fertilizer product, while simultaneously blocking fine dust and moisture from entering the bearing chamber. A pressure-equalizing breather vent prevents internal pressure buildup that would otherwise force oil past seals during warm-up and cool-down cycles.

应用领域

The CMN-SLX-14375 fertilizer spreader gearbox delivers reliable, precise spreading performance across a wide spectrum of agricultural and land management applications

CMN-SLX-14375 Fertilizer Gearbox Components

变速箱壳体
The die-cast aluminum alloy housing forms the structural skeleton of the entire gearbox, supporting all shaft bearings and enclosing the gear mesh and oil bath. It is precision-machined at all bearing bores and mating faces to maintain strict alignment between input and output shafts across the operating temperature range. The aluminum material provides an excellent strength-to-weight ratio, reducing the overall implement weight while resisting the surface corrosion caused by fertilizer dust and agrochemical spray drift. Mounting flanges are drilled to standard bolt-circle patterns for direct replacement of legacy gearboxes on common spreader platforms.

输入轴
The input shaft is manufactured from high-strength alloy steel and carries the drive bevel pinion gear (16 teeth, Module 3.5) at its inner end. The outer end is broached to the 1-3/8 inch Z6 spline form that accepts the standard PTO driveline shaft yoke. The shaft runs on two precisely spaced rolling element bearings that handle both the radial load from gear mesh forces and the axial thrust generated by the bevel tooth helix angle. Surface hardening at critical wear points extends input shaft service life even under continuous high-torque use during peak spreading operations.

锥齿轮组
The 23/16 tooth bevel gear pair is the core power-conversion element of the agricultural gearbox. Both gears are cut from case-hardening steel, carburized, and precision-lapped as matched pairs to achieve quiet operation and uniform tooth load distribution. The Module 3.5 tooth form provides generous tooth depth and contact length, giving the mesh high load capacity relative to the compact overall size of the gearbox. The 90-degree shaft intersection angle is held to within tight angular tolerances during assembly to ensure correct tooth contact pattern and prevent edge loading that would cause premature pitting or tooth breakage.

输出轴
The output shaft presents a 25 mm diameter solid alloy steel stub that connects to the spreader disc hub or a secondary drive component. It carries the 23-tooth bevel wheel and is supported in two heavy-duty rolling element bearings to cope with the significant bending moment generated when a loaded spreader disc rotates at approximately 777 RPM. The output shaft end is machined with a standard keyway and thread for secure disc attachment, and the journal surfaces are ground to close dimensional tolerances to ensure precise bearing fit and long oil-seal life at this critical location.

轴承
Four bearing units (two per shaft) of matched type and radial clearance class support the gear shafts under combined radial and axial loading. The bearing selection is determined by the combined load factor from bevel gear mesh forces and the inertia of the rotating disc assembly. Pre-loaded or adjustably preloaded bearing pairs are used to eliminate shaft float, which would allow gear backlash to increase over time and cause impact noise and accelerated flank wear. All bearings are sourced from major quality suppliers and are selected for compatibility with the ISO VG 90 or 140 gear oil specified for this unit.

油封
Double-lip radial shaft seals are installed at every point where a rotating shaft exits the housing: input shaft, output shaft, and any auxiliary drive stub. The primary sealing lip retains gear oil inside the housing while the secondary dust-exclusion lip prevents fine fertilizer particles, grit, and moisture from entering the bearing chamber from outside. Seal materials are selected for chemical compatibility with the full range of fertilizer granule types, including nitrogen-based urea prills, ammonium nitrate, DAP, MAP, and compound blended products that would degrade standard nitrile rubber seals over time.

润滑系统
The CMN-SLX-14375 employs a bath-splash lubrication system in which the rotating gear wheel continuously picks up oil from the reservoir at the bottom of the housing and distributes it as a fine mist across all gear and bearing surfaces. The oil level is set precisely at the level plug port on the side of the housing: oil should just reach the lower edge of the plug hole when the gearbox is in its normal operating orientation. A screw-type breather vent on the top of the housing allows thermal expansion gases to escape without building pressure that would force oil past seals. Drain and fill plugs are fitted with magnetic inserts to capture ferrous wear particles, giving the service technician an early warning of abnormal internal wear at each oil change.

How to Lubricate the Fertilizer Distributor Gearbox Correctly

Step 1-Select the Correct Oil Grade
Use a high-quality mineral or synthetic gear oil of ISO VG 90 viscosity grade for standard ambient temperature conditions (5 to 35 degrees C). In tropical climates or where ambient temperatures consistently exceed 35 degrees C, upgrade to ISO VG 140. Never substitute engine oil, hydraulic fluid, or grease for gear oil in this unit, as these lubricants lack the extreme-pressure (EP) additive package needed to protect hardened bevel gear flanks under the high contact stresses generated at the tooth pitch line. Using the wrong lubricant type will lead to rapid wear, scuffing, and premature gearbox failure.

Step 2-Check Oil Level Before Each Season
At the start of each spreading season, and after any extended storage period, remove the fertilizer spreader gearbox oil level plug and verify that oil is present at the correct level. The oil level should be flush with the lower edge of the level plug port when the gearbox is in its installed operating orientation on the implement. If oil does not flow out or is not visible when a clean wire probe is inserted, top up immediately using the correct grade before operating. Over-filling is also harmful: oil above the correct level generates excessive churning losses, heat, and foam that reduces lubrication effectiveness.

Step 3- Initial Oil Change After Break-In Period
During the first 20 to 50 hours of operation, newly machined gear and bearing surfaces generate fine metallic wear particles as they bed in and establish their final running clearances. These particles, even though they are very small, act as abrasive grit if left in the oil. Drain the fertilizer gearbox oil completely after the first 20 to 50 operating hours, flush the housing briefly with a small quantity of clean oil of the same grade, and refill with fresh oil. After this initial change, inspect the magnetic drain plug for accumulated metal particles and note the quantity as a baseline for future comparisons.

Step 4-Scheduled Oil Changes Every 200 Hours or Annually
Change the gear oil completely every 200 operating hours or at the end of each annual spreading season, whichever comes first. Drain the oil while the gearbox is warm (shortly after a spreading run) so the fluid flows freely and carries suspended wear particles out with it. Clean and reinstall the magnetic drain plug, refit the drain plug with a new sealing washer if required, refill via the fill port to the correct level, and test-run the spreader briefly before returning to field work. Never allow old, heavily contaminated oil to remain in the gearbox over the winter storage period, as acids formed by oil degradation will attack bearing surfaces and gear flanks during storage.

Step 5-Inspect Oil Seals and Replace if Needed
At each oil change, thoroughly clean the exterior of the gearbox and inspect all shaft exit points for signs of oil weeping or seeping. A thin film of oil around a seal lip indicates the seal is beginning to fail and should be replaced before the next spreading season. Allowing a leaking seal to continue in service results in accelerating oil loss, fertilizer ingress into the bearing chamber, and eventually bearing seizure. Replacement seals are available as part of the CMN fertilizer spreader gearbox parts service kit and can be installed with basic tools and a seal driver without specialist equipment.

Step 6-Flush After Exposure to Water Ingress
If the implement has been power-washed and water has entered the gearbox housing (visible as a milky or emulsified appearance when the drain plug is removed), drain and flush the unit immediately. Water in gear oil catastrophically reduces the oil film strength and causes hydrogen embrittlement of bearing steel, leading to rapid spalling failure even at normal operating loads. After flushing with clean oil of the correct grade, inspect the bearings for any roughness when the shaft is turned by hand, and replace any bearing showing signs of corrosion or roughness before returning the spreader to service.

Step 7-Check and Clear the Breather Vent
The breather vent is a small but critical component that equalizes pressure inside the gearbox as oil temperature changes during operation. If the vent becomes blocked with fertilizer dust, caked product, or paint overspray, pressure builds inside the housing on warm-up and forces oil past shaft seals and the housing gasket. Check the vent at each oil change by unscrewing it and verifying that air can pass freely through the internal filter or baffled passage. Clean or replace the vent if any restriction is found. A clear breather vent is one of the simplest and most effective steps in extending fertilizer spreader gearbox oil seal life.

肥料撒播机变速箱和动力输出轴

Fertilizer spreader gearboxes transfer power from the tractor's PTO to the spinner discs, agitators, or auger systems that distribute fertilizer, seed, or granular soil amendments. The gearbox performs three essential functions: it changes the direction of the power path through the right-angle bevel gear set, converts the 540 RPM tractor PTO speed to the approximately 777 RPM required at the spreading disc through the 1:1.44 step-up ratio, and provides the structural interface between the PTO传动轴 and the spreader implement frame. The CMN-SLX-14375's durable, corrosion-resistant design ensures consistent spreading performance across a full season's use with multiple corrosive fertilizer product types, while the standard 1-3/8 inch Z6 input spline ensures compatibility with the universal PTO driveline shaft specification used on virtually all agricultural tractors globally.

A PTO shaft, also called a Power Take-Off shaft or PTO driveline shaft, is a mechanical drivetrain component that transfers rotational power from the tractor's rear PTO stub to the input of the connected implement's gearbox. Rather than requiring every piece of farm machinery to carry its own engine or motor, the PTO shaft lets a single tractor power a wide range of agricultural implements including rotary tillers, flail mowers, wood chippers, round balers, fertilizer spreaders, orchard sprayers, post hole diggers, and silage machines. The PTO driveline shaft used with fertilizer spreaders typically consists of a telescoping inner and outer tube that accommodates the changing effective length between the tractor and implement as the suspension deflects during field operation, combined with a universal joint (U-joint) at each end that accommodates the angular misalignment between the tractor PTO stub and the gearbox input shaft. The tubes may be square-profile, star-profile, or multi-spline form to transmit high torque while still sliding freely under compression.

The PTO driveline shaft and the fertilizer spreader gearbox form an integrated power transmission system that must be correctly matched in torque rating, operating angle, and length to deliver reliable performance. When the tractor PTO is engaged, torque flows from the tractor stub through the near-side yoke and inner tube of the driveline shaft, through the far-side yoke, and into the Z6 spline socket of the CMN-SLX-14375 input shaft. The telescoping length of the shaft accommodates the three-point linkage movement as the implement rises and falls over uneven ground. The universal joints at each shaft end compensate for the angular difference between the tractor's PTO axis and the gearbox input axis, which changes dynamically during transport and field turns.

To protect the gearbox from overload, it is strongly recommended that the PTO driveline shaft assembly include a friction-disc slip clutch or shear-bolt overload device immediately adjacent to the gearbox input yoke, sized to slip or break below the rated torque of the CMN-SLX-14375 gearbox. This protects both the gearbox and the tractor PTO shaft from the shock loads that occur if the spreading disc strikes a hard obstruction. CMN Transmission also supplies a comprehensive range of matched PTO shaft assemblies with appropriate guard tubes, overload devices, and yoke specifications that are pre-sized for compatibility with the CMN-SLX-14375 gearbox series, simplifying the procurement process for OEM implement manufacturers and replacement part buyers.

• Spline compatibility: The PTO shaft yoke end must match the 1-3/8 inch Z6 spline of the CMN-SLX-14375 input shaft for correct mechanical engagement.
• Torque rating: The PTO shaft rated torque (and any overload device release torque) must be equal to or greater than the maximum torque output of the gearbox at 15 HP and 540 RPM input to prevent shaft or U-joint failure under peak spreading loads.
• Operating length: The telescoping stroke of the PTO shaft must cover the full range of implement movement without the inner shaft bottoming out at full compression or separating at full extension, which would cause catastrophic driveline failure.
• Operating angle: Universal joints should operate below 15 degrees of angle at all times during field work to avoid the velocity variations and vibration that occur at high U-joint angles, which can cause premature gearbox input-shaft bearing fatigue.

Rotary Cutter Gearbox vs. Fertilizer Spreader Gearbox

什么是旋转切割机齿轮箱？

A rotary cutter gearbox is a high-torque, shock-resistant power transmission device at the heart of rotary cutters (also called brush hogs, slashers, or mulchers) used for mowing tall grasses, dense weeds, brush, and light woody vegetation. Designed to absorb the massive shock loads that occur when heavy rotating blades strike solid obstacles such as stones, stumps, and fence posts, the rotary cutter gearbox is typically built from cast iron or heavy-walled ductile iron and dimensioned for extreme durability rather than light weight. The input shaft connects to the tractor's 540 or 1000 RPM PTO, while the output shaft drives one or more heavy steel blades through a step-down ratio that increases torque at the expense of blade tip speed, keeping the cutting geometry stable under high vegetation loads.

旋转切割机齿轮箱的优点

• Extreme shock resistance: Heavy-section gear teeth and oversized shafts absorb the sudden torque spikes that occur when spinning blades encounter embedded rocks, tree stumps, or dense clumps of vegetation, preventing catastrophic gear failure during normal land-clearing operations.
• High continuous torque capacity: Rotary cutter gearboxes are rated in HP multiples far above their nominal input because cutting vegetation imposes highly variable load profiles; heavy-duty units may be rated at 60 to 200 HP for commercial vegetation management equipment.
• Multiple blade configurations: Single-blade, twin-blade, and multi-spindle output arrangements allow the gearbox design to be adapted to different mowing widths and cutter deck configurations without changing the basic power input specification.
• Proven longevity in harsh use: The cast-iron construction and conservative design margins typical of rotary cutter gearboxes result in service lives measured in thousands of hours when correctly maintained, making them a cost-effective investment for professional vegetation management contractors.

旋转切割机齿轮箱的应用

• Roadside and right-of-way mowing: Municipal and highway department contractors use rotary cutter gearboxes on heavy-duty tractor-mounted mowers to maintain grass verges, median strips, and fence lines along public roads.
• Pasture renovation and brush control: Overgrown paddocks, scrubby pastures, and regrowth areas after fire or flood are cleared with rotary cutters before reseeding or reintroducing stock.
• Orchard and vineyard inter-row mowing: Compact rotary cutters with appropriate gear ratios maintain grass and weed cover between fruit tree rows without scalping the soil or throwing debris into the tree canopy.
• Airfield grass management: Aviation safety authorities require regular mowing of airside grass areas; heavy-duty rotary cutter gearboxes provide the reliability essential in this safety-critical maintenance context.

什么是肥料撒播机齿轮箱？

A fertilizer spreader gearbox, also called a fertilizer distributor gearbox, is an agricultural gearbox specifically designed for precision power transmission from the tractor PTO to the spinning discs, augers, or agitators in fertilizer spreading machines. Unlike the brute-force approach of a rotary cutter gearbox, the fertilizer spreader gearbox prioritizes precise gear ratios, compact and lightweight housing designs (commonly aluminum alloy), and chemical corrosion resistance, since granular fertilizer products are highly corrosive to both metals and elastomers. The step-up ratio in a typical fertilizer gearbox delivers the high disc RPM needed for wide, even spreading patterns while keeping the PTO operating at standard 540 RPM.

肥料撒布机齿轮箱的优点

• 轻质铝合金结构： Reduces implement total weight by up to 40% compared to cast-iron alternatives, improving tractor fuel economy and reducing soil compaction during spreading passes.
• 耐腐蚀设计： Sealed bearings, double-lip shaft seals, and chemical-resistant housing materials protect internal components from the highly corrosive environment created by nitrogen, phosphate, and potassium fertilizer products.
• Precision speed conversion: Fixed, accurately maintained gear ratios deliver consistent disc RPM regardless of engine throttle variation, ensuring repeatable spreading width and application rate across the entire field.
• Wide application versatility: The same fertilizer spreader gearboxes can be used for granular fertilizer, lime, gypsum, seeds, and granular pesticides, making them high-utilization components across all seasons of the farming calendar.

肥料撒布机齿轮箱的应用

• Broadacre grain farming: Large-scale application of basal and top-dressing fertilizer blends across wheat, corn, and soybean fields at rates from 100 to 1,000+ kg/ha.
• Pasture and livestock support: Urea and compound fertilizer application to improve pasture growth rate and forage quality between grazing rotations.
• Horticultural and specialty crop production: Controlled spreading of low-rate granular fertilizers in vegetable, soft fruit, and herb production systems.
• Sports turf and amenity management: Precision low-rate application of slow-release granular fertilizers on sports pitches, golf fairways, and amenity parkland.

并排比较