L-25A 化肥撒布机变速箱速比 1:1.9,可替代 Comer L-25A 变速箱
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.
这款L-25A型肥料撒布机变速箱(速比1:1.9)是Comer L-25A变速箱的替代品,也称为肥料分配器变速箱,是农业机械的重要组成部分,专为土壤准备、作物处理和肥料撒布等作业而设计。它位于机器中心,将拖拉机动力输出轴(PTO)的动力传递至旋转的圆盘或螺旋输送器,从而将肥料均匀地撒布在田间。这些肥料撒布机变速箱经过精心设计,经久耐用、可靠性高,可确保动力传输稳定,满足各种作业需求。
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.

技术参数
| 模型 | L-25A 变速箱 1:1.9 |
| 替换品牌 | 科默 |
| 产品详情 |
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| 应用范围 |
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| 比率因子 | 1:1.9 |
| 连接 1 外径(英寸)和花键 | 1.3/8-6 |
| 连接点 2 外径 | 25.00 毫米 |
| 模型 | L-25A |
| 最大输入功率 | 11千瓦 |
| 最大输入转速 | 540 转/分钟 |
| 最大输出功率 | 11千瓦 |
| 最大输出功率 | 15马力 |
| 最大输出扭矩 | 99 N·m |
| 减速齿轮装置 | 3-4 |
| 含油 | 不 |
| 最大油容量 | 0.35升 |
| 最大换油周期 | 500小时 |
| 油品SAE粘度等级 | 80W-90 |
| 房屋材料 | 铝 |
| 重量 | 4.1公斤 |
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L-25A 化肥撒布机变速箱尺寸

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
L-25A变速箱优化的齿轮啮合几何结构和低摩擦内部组件最大限度地减少了从拖拉机动力输出轴传递扭矩过程中的寄生功率损耗。这种高效的机械设计降低了不必要的发动机负荷,从而直接转化为每公顷耕作面积的显著燃油节省。对于每季耕作多块田地的大型农场而言,这种效率优势会在变速箱的使用寿命内累积,最终转化为显著的运营成本降低。
4. Wide Versatility Across Applications
这款用于肥料撒播机的农用变速箱与颗粒状、球状、液体和有机肥料以及石灰和堆肥撒播机完全兼容。其标准的 1-3/8 英寸六花键动力输出轴输入轴连接和 25 毫米输出轴适用于各种拖拉机品牌和撒播机型号,可适应从平坦耕地到山坡果园等各种地形,是混合农业企业的理想之选。
5. 低维护设计
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
L-25A 型肥料撒布机变速箱直接从拖拉机的动力输出轴 (PTO) 接收旋转动力,该轴的标准转速为 540 转/分。通过内部锥齿轮传动装置(减速级 3-4),该输入转速以 1:1.9 的传动比进行转换,从而产生约 284 转/分的合适输出转速,以驱动肥料撒布机的旋转盘、搅拌器或螺旋输送器。同时,变速箱将输入轴的扭矩放大至输出轴最大 99 牛·米,确保旋转机构产生足够的离心力,将颗粒状或液态肥料均匀地撒布在预定的撒布宽度上。这种精确的转速-扭矩转换是高品质农用变速箱区别于普通替代品的关键所在,它直接影响肥料撒布的均匀性和准确性。
轻巧而坚固的铝制外壳(总重 4.1 公斤)内装有精密研磨的锥齿轮和在优质滚动轴承中运行的硬化钢轴。输入轴和输出轴出口处均安装了多唇油封,可防止肥料粉尘、水分、作物残渣和土壤颗粒进入,否则这些物质会加速齿轮齿面和轴承滚道的磨损。密封油浴中注入了 0.35 升 SAE 80W-90 齿轮润滑油,在所有运动的齿轮和轴承表面之间形成流体动力油膜,从而显著减少连续田间作业过程中金属间的直接接触和热量产生。考虑到典型撒播作业中氮肥、磷肥和钾肥产生的强腐蚀性化学环境,铝制外壳本身的耐腐蚀性尤为重要。
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.

Application Areas
农作物种植
Essential for the uniform application of granular and liquid fertilizers across arable crops including grains, cereals, vegetables, and fruits. The 1:1.9 gear ratio ensures the spinner discs achieve the correct speed for wide, even spread patterns, promoting optimal nutrient absorption at the root zone, preventing localized burning, and maximizing yield potential per hectare.
牧场管理
In livestock farming operations, this fertilizer gearbox ensures even distribution of nitrogen and compound fertilizers across permanent pastures and temporary leys, promoting vigorous grass growth and improving forage quality. Uniform application avoids the uneven growth patterns and palatability issues caused by irregular spreading, resulting in healthier grazing conditions and improved animal performance through the entire grazing season.
草坪和草皮管理
Ideal for commercial turf management on sports fields, golf course fairways and roughs, and municipal parks, the L-25A provides precise, customizable fertilizer application rates for healthy, uniform grass growth. Its consistent output torque ensures repeatable disc speed regardless of tractor PTO load variation, delivering the application accuracy demanded by professional grounds management where presentation standards are paramount.
园艺和苗圃
Used in greenhouse operations, open-air nurseries, and protected cropping facilities, this agricultural gearbox for fertilizer spreader applications enables accurate distribution of controlled-release fertilizer granules or specialist horticultural fertilizers for potted plants and ornamental crops. The compact and lightweight design of the L-25A unit suits the narrower aisle widths and confined headlands typical of specialist horticultural production environments.
土壤改良和石灰撒施
L-25A 型肥料撒播机齿轮箱同样适用于撒播土壤改良剂,包括农业石灰、白云石、石灰粉和有机堆肥。这些材料通常比标准肥料更重、更具磨蚀性,因此 L-25A 坚固的密封外壳和硬化的内部组件尤其适合这种高要求的应用,而其他齿轮箱在这种应用中会迅速出现磨损。
果园和葡萄园
在果树、葡萄藤和浆果灌木的敏感根系区域进行精准施肥,需要严格控制施肥量,以避免根系灼伤和养分失衡。L-25A 稳定的 1:1.9 输出比可确保每次施肥作业的圆盘速度一致,使种植者能够设定并保持每行树木的精确施肥量,因此是专业果园和葡萄园营养管理方案的理想之选。
Landscaping and Amenity Grounds
For commercial landscaping contractors and amenity grounds teams maintaining roadsides, roundabouts, school grounds, and public open spaces, the L-25A provides controlled fertilizer spreading in areas where over-application onto hard surfaces or water features is unacceptable. Its compact size and simple PTO-driven operation make it compatible with compact utility tractors commonly used in amenity grounds maintenance fleets.

L-25A Fertilizer Spreader Gearbox Parts
变速箱壳体
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.
输入轴
经过硬化和研磨的输入轴带有花键,可连接标准的 1-3/8 英寸(6 齿花键)动力输出轴 (PTO),这是欧洲农业机械在 540 转/分钟转速下运行的通用标准。该输入轴采用高强度合金钢制造,并经过热处理以提高表面硬度,即使在田间作业中常见的振动和冲击载荷下,也能将高达 11 千瓦的连续动力输出轴 (PTO) 功率传递到变速箱,而不会在花键接口处发生变形或磨损。
锥齿轮
配合锥齿轮副构成了 L-25A 动力传输路径的核心,将旋转轴从动力输出轴输入方向转换为输出轴方向,同时将齿轮比提升至 1:1.9。两个齿轮均采用渗碳钢精密滚齿和研磨,然后进行渗碳和淬火处理,以达到在较长的使用寿命内承受 99 N·m 最大输出扭矩所需的表面硬度和芯部韧性。
输出轴
直径 25 毫米的输出轴将转换后的旋转动力直接传递至肥料撒布机的圆盘驱动轮毂或螺旋钻联轴器。该输出轴经过精密加工,尺寸公差极小,并根据型号规格配备键槽或花键。输出轴两端均采用坚固的滚动轴承支撑,以承受田间高速作业时,由撒布盘组件的重量和离心不平衡产生的径向和轴向载荷。
轴承
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.
油封
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.
润滑系统
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
壳体设有四个螺纹孔或通孔安装孔,其螺栓孔位布局与原装 Comer L-25A 规格一致,可使用标准公制紧固件。安装法兰尺寸(螺栓孔圆直径 74 mm x 74 mm,孔径 11 mm,如图所示)允许直接用螺栓固定到肥料撒布机的中央变速箱安装框架上,无需任何改装。用于将变速箱固定到撒布机框架上的高强度钢紧固件是关键的安全部件,必须按照制造商规定的扭矩值进行拧紧。

How to Correctly Install the L-25A Gearbox
1. 安装前检查
安装变速箱前,请检查吊具框架和变速箱壳体上的所有配合面,确保无毛刺、油漆流挂、碎屑或腐蚀等可能妨碍完全接触的缺陷。确认吊具框架上的螺栓孔位与 L-25A 的 74 mm x 74 mm 安装孔位(带 11 mm 间隙孔)相符。检查输入轴和输出轴的轴端,查看花键齿或键槽是否有运输损坏。切勿安装损坏的部件。
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 肥料撒布机变速箱 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
将变速箱对准撒布机中央变速箱安装框架,并对齐所有四个安装孔。插入 8.8 级或更高等级的 M10 螺栓、平垫圈和弹簧垫圈。先用手拧紧所有四个紧固件,然后分两个阶段沿对角线方向拧紧至推荐扭矩值(通常 M10 8.8 级螺栓的扭矩为 40-45 N·m)。沿对角线方向拧紧可防止壳体变形,并确保安装法兰与框架面均匀垂直,从而保持正确的内部齿轮对准。
4. Connect the PTO Drive Shaft
将动力输出轴的 1-3/8 英寸六花键轭滑入变速箱输入轴,确保花键完全啮合,直至锁紧环或卷销固定器咔嗒一声卡入到位,从而将连接轴向固定。确保动力输出轴的超越离合器或滑动离合器方向与制造商标记的方向一致。确认动力输出轴的长度能够保证正确的操作角度,并且在拖拉机与撒布机几何形状的整个范围内,伸缩轴各节之间始终保持足够的重叠。
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
将动力输出轴的塑料外护罩安装在传动轴上,并将安全链的两端分别连接到拖拉机和撒布机上的固定锚点,以确保护罩不会随轴旋转。护罩必须覆盖变速箱输入轴轭区域,但不得与变速箱壳体接触。这是一项强制性安全要求:旋转的无护罩动力输出轴极易造成缠绕危险,许多司法管辖区都规定操作人员有法律义务在田间作业前确保正确安装护罩。
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
Break-In Oil Change (50-70 Hours)
Drain and replace the gear oil after the first 50 to 70 operating hours regardless of its apparent visual condition. This critical service removes fine metallic particles shed by the gear flanks and bearing surfaces during the initial bedding-in period. If left in the gearbox, these particles act as an abrasive lapping compound that accelerates wear. Drain the old oil while it is still warm from operation to ensure complete removal of suspended particles, then refill with fresh SAE 80W-90 to the correct level.
Regular Oil Level Monitoring
Check the fertilizer spreader gearbox oil level at the start of each operating season, after any prolonged storage, and every 50 hours of in-season operation. With the spreader on level ground, remove the oil level check plug and verify oil is present at the port. A low level indicates either seal wear with external leakage or emulsification from moisture ingress. Top up with the correct SAE 80W-90 grade only. Never mix different viscosity grades or oil types as this can compromise lubricant film strength.
Scheduled Oil Changes (500 Hours / Annual)
Perform a full drain and refill of the 0.35 L SAE 80W-90 oil charge every 500 operating hours or at least once per year, whichever falls first. Oxidized gear oil loses its extreme-pressure additive package, reducing protection of heavily loaded gear tooth contact zones. When draining, check the drained oil for metallic debris, milky emulsification (indicating moisture ingress), or unusual discoloration. Any of these signs warrant a more thorough inspection of the gearbox interior, oil seals, and housing integrity before returning to service.
Oil Seal and Gasket Inspection
Inspect both input and output shaft oil seals visually at each service interval and after any prolonged storage, checking for cracking, hardening, or distortion of the rubber lip, and for oil weeping at the seal-to-shaft interface. The housing joint gasket should also be checked for compression set or cracking. Seals showing any sign of deterioration must be replaced immediately, as fertilizer chemicals rapidly attack compromised seals and contaminate the gear oil once an ingress path is established. Replacement seals matching original dimensions are available as fertilizer spreader gearbox parts.
Mounting Fastener Torque Verification
Vibration and thermal cycling during field operation can cause mounting fasteners to gradually loosen, potentially allowing the gearbox to shift position relative to the spreader frame. Check and re-torque all four mounting bolts to their specified torque values at the start of each season and after every 100 hours of operation. Pay particular attention to the PTO drive shaft yoke retaining hardware and the spreader disc hub locking fastener. Loose mounting allows the gearbox to rock under load, generating fretting corrosion at the mounting face and abnormal loads on the gear mesh.
End-of-Season Storage Preparation
At the end of the spreading season, clean the gearbox exterior thoroughly with water to remove all traces of fertilizer residue, which is hygroscopic and corrosive. Apply a coat of light anti-corrosion oil spray to all exposed metal surfaces, shaft ends, and the housing exterior. Change the gear oil before storage rather than at the start of the next season, as used oil becomes acidic over storage periods and will attack internal surfaces. Store the spreader under cover in a dry location to protect the gearbox and associated hardware from moisture-induced corrosion during the off-season period.

肥料撒播机变速箱和动力输出轴
动力输出轴(PTO轴)是拖拉机与其所连接农具之间的机械连接装置。根据ISO 500标准,农业应用中PTO轴的转速为540转/分。它通过两端装有万向节的伸缩式传动轴,将拖拉机变速箱驱动的PTO轴头的发动机动力传递至农具的输入轴。如果没有PTO轴,诸如施肥机、割草机、圆捆打捆机和旋耕机等拖拉机农具将无法工作。因此,PTO轴不仅仅是一个便利装置,而是全球广泛使用的PTO驱动型农业机械的基本动力来源。
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.
L-25A变速箱输入轴采用标准的1-3/8英寸六花键轭形接头,这种接头广泛应用于绝大多数欧洲540转/分农用动力输出轴(PTO)。在为该变速箱选择或指定用于肥料撒布机的动力输出轴时,必须确认以下几个参数:该轴必须能够在540转/分的转速下持续传递至少11千瓦的功率;其收缩和伸展长度必须在拖拉机所有提升位置范围内都能保证正确的啮合和间隙;万向节角度必须保持在制造商建议的范围内,以避免振动引起的共振;此外,该轴必须配备额定功率合适的过载保护装置,例如滑动离合器或剪切螺栓联轴器,以在发生盘片堵塞或异物撞击时保护变速箱和拖拉机传动系统。
当拖拉机动力输出轴(PTO)接合时,旋转动力从拖拉机PTO短轴流出,经由伸缩式PTO传动轴,通过1-3/8英寸花键连接进入L-25A变速箱的输入轴。锥齿轮组以1:1.9的传动比转换动力,然后将其传递至输出轴,驱动撒布盘。操作员通过控制拖拉机PTO的接合和撒布盘挡板的开度来控制撒布量,而变速箱则始终保持正确的撒布盘转速,不受油门细微变化的影响。因此,用于化肥撒布机的农用变速箱既是动力转换器,又是传动系统中的缓冲元件,能够吸收微小的速度波动,防止其影响田间撒布的均匀性。
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.
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为什么选择 CMN Transmission 的化肥撒布机变速箱?
韩国CMN变速器有限公司成立于2000年,总部位于韩国京畿道安山市檀园区三檀路。二十多年来,CMN变速器专注于产品研发和制造,已发展成为全球肥料撒播机变速箱制造商中最受认可和信赖的品牌之一,为遍布全球60多个国家的OEM客户、分销商和售后市场经销商提供产品。CMN变速器拥有超过100名技术精湛的员工,他们专注于农业变速箱的研发、制造、销售和售后服务。公司运营着一座垂直整合的生产设施,配备了CNC加工中心、齿轮磨床、热处理生产线和三坐标测量机(CMM)质量检测设备。这一完善的基础设施支持公司年产量超过50万台变速箱,涵盖其全系列产品,为公司全年可靠地完成大型OEM项目和时间紧迫的售后市场更换订单提供了充足的生产实力。
CMN Transmission的产品组合涵盖了农业动力传动的方方面面,包括旋转切割机变速箱、旋耕机变速箱、饲料搅拌机变速箱、旋转割草机变速箱、肥料撒布机变速箱、甩刀式割草机变速箱、挖坑机变速箱、圆捆机变速箱、方捆机变速箱、圆盘式割草机变速箱、中心支轴式喷灌机变速箱、液压驱动变速箱、青贮机变速箱、果园喷雾器变速箱、旋转耙变速箱、联合收割机变速箱、粮食储存和运输变速箱、玉米收割台变速箱、切割杆变速箱和家禽饲料机变速箱,此外,CMN Transmission还具备定制农业变速箱的生产能力,可满足近千种规格的要求。如此广泛的产品覆盖范围使CMN Transmission成为拥有多种产品线、且变速箱需求各异的机械制造商的一站式供应商。
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.

常见问题解答
Q: Is the CMN L-25A a true direct replacement for the Comer L-25A fertilizer spreader gearbox?
答:是的。CMN L-25A 的设计旨在完美替代原装 Comer L-25A 变速箱,尺寸和功能完全一致。所有关键尺寸均匹配,包括安装螺栓孔(74 毫米 x 74 毫米,4 个 M10 孔)、1-3/8 英寸六花键输入轴和 25 毫米输出轴直径。对于任何原先使用 1:1.9 速比 Comer L-25A 变速箱的机器,安装 CMN L-25A 无需任何加工、定制适配器或支架改装。
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?
答:是的。L-25A 的密封铝制外壳和多唇油封可有效防止在撒播颗粒状肥料、农业石灰、白垩粉、白云石和颗粒状堆肥时遇到的腐蚀性和磨蚀性物质。对于液态肥料,请确保输出轴和盘轮毂的连接适用于潮湿环境,并采取足够的防溅措施,以防止液态肥料喷溅到变速箱壳体接头和油封上,尤其是在长时间运行过程中。
Q: What is the weight of the L-25A gearbox and why does the housing material matter?
答:L-25A 的重量仅为 4.1 公斤,这得益于其压铸铝外壳。如此轻的重量减轻了肥料撒布机中央框架和连接件所承受的额外力矩,这对于紧凑型和轻型撒布机而言至关重要。铝材固有的耐腐蚀性在化肥环境中是一项显著优势,因为强度相同的铸铁外壳需要持续进行细致的表面保护,以防止外壳壁锈蚀穿孔和齿轮油被氧化铁颗粒污染。
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?
答:Comer L-25A 系列包含多种型号,详见 Comer 变速箱产品目录参考表(型号范围为 9.124.xxx)。需要识别的关键参数包括:齿轮比(在齿轮比列中查找“1.90”)、输入轴连接类型(X 型、Y 型或 Z 型轴)以及输出轴类型。上方的参考规格图显示了轴类型代码和安装配置。请向我们的技术团队提供您现有的 Comer 型号代码(例如 9.124.912 或 9.124.019),我们将确认正确的 CMN 对应型号并查询库存情况。
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.

用户评价
James, Crop Farming, United States
“我们在伊利诺伊州中部种植了大约2800英亩的玉米和大豆,变速箱的损耗非常大。去年春天,我们从CMN Transmission公司购买了两台L-25A变速箱,用来替换我们双盘式撒播机上磨损的Comers变速箱。说实话,就适配性和性能而言,我感觉不出任何区别。所有部件都完美契合,油封质量看起来也不错,其中一台已经运行了大约180个小时,没有任何问题。价格比我们之前咨询的OEM报价还要优惠。我们还会继续订购。”
Thierry, Grain Farming, France
“我为我们在博斯地区的粮食农场的施肥机订购了两台L-25A变速箱。交货时间比预期稍长,但客服响应迅速,并及时与我沟通。安装完毕后,变速箱运行完美。1:1.9的传动比完全符合我们的需求。我对这个价位的质量非常满意。我向其他法国农民推荐这家施肥机变速箱制造商。”
Klaus, Agricultural Machinery, Germany
“我们在巴伐利亚经营一家大型农机修理厂,经常需要更换化肥撒布机的变速箱。CMN Transmission 的 L-25A 变速箱与原装 Comer 零件完全相同,精确到毫米。所有四个安装螺栓、输入轴和输出轴以及壳体都完美契合。我们现在有十二台库存,可以毫无问题地销售给我们的农业客户。质量和价格都很合适。海运交货时间大约三周,我们完全可以接受。”
David, Orchards and Vineyards, United Kingdom
“我购买了这款L-25A 1:1.9速比的变速箱,用来替换我们Amazone撒布机上用了大约800小时后出现轴承异响的Comer变速箱。安装过程非常简单,包括加注润滑油在内,大约只用了45分钟。这款变速箱的运行噪音比旧变速箱刚买来时还要小。我唯一要提醒的是,变速箱出厂时是完全干燥的,所以使用前一定要记得加注80W-90润滑油!除此之外,我对这款变速箱非常满意。与通过英国经销商网络购买原装Comer变速箱相比,这款变速箱性价比很高。”
Carlos, Sugarcane Plantations, Brazil
“我们为圣保罗的农业机械车队采购了6台L-25A变速箱。1:1.9的传动比非常适合我们甘蔗种植园的施肥机。铝材和密封件的质量看起来都很棒。CMN的技术支持通过电子邮件迅速解答了我们关于施肥机变速箱油位的所有问题。交货安排井然有序,并提供了完整的进口文件。强烈推荐CMN作为施肥机供应商。”
Michael, Wheat Farming, Australia
“我们在维多利亚州的农场已经使用这台L-25A装置一个完整的麦子和油菜籽种植季了。这里夏季的条件比较恶劣,尘土飞扬,天气炎热,但变速箱表现非常出色。没有漏油,也没有噪音问题。我们在种植季开始和中期都检查了油位,油位始终正常,这说明密封件工作良好。从韩国发货大约需要三周时间,这对我们来说很合适,因为我们是在淡季订购的。以后肯定还会再次从这家肥料撒布机变速箱供应商购买产品。”
Marco, Agricultural Parts Distributor, Italy
“我们为艾米利亚-罗马涅大区的经销商客户订购了十台L-25A型变速箱。这些用于肥料撒布机的变速箱质量非常好,1:1.9的传动比经过验证,与标称规格相符。CMN的客服人员顺利地向我们发送了尺寸图纸和CE认证证书。交货时间也得到了遵守。与欧洲同类产品相比,价格很有竞争力。CMN是一家非常优秀的农业零部件供应商。”
Somchai, Rice and Vegetable, Thailand
“我们为泰国水稻和蔬菜农场的施肥机购买了这款变速箱。1-3/8英寸的输入轴花键与我们的动力输出轴完美匹配,25毫米的输出轴也如预期般连接到我们的圆盘轮毂。安装大约花了一个小时,变速箱已经运行了三个月,没有任何问题。由于物流跟踪信息更新较慢,我对服务的评价略低,但产品本身的质量很好,我们会为第二台机器再次订购。”
Robert, Pasture Management, Canada
作为一家服务于加拿大草原市场的机械进口商,我定期为我们的经销商网络储备肥料撒布机变速箱。现在,CMN L-25A 已成为我首选的 Comer L-25A 替换件。其尺寸精度在多次订购中始终保持良好;CE 认证文件无需催促即可提供;我的经销商反馈的保修索赔极少。铝制外壳的质量明显优于我试用过的其他一些韩国同类产品。运往加拿大的物流也很顺畅。CMN 是一个值得信赖的长期合作伙伴。
其他信息
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