Редуктор разбрасывателя удобрений T-281A с передаточным отношением 1:2,91 (замена редуктора Comer T-281A).

Растениеводство

Essential for the uniform application of granular and compound fertilizers across row crops including wheat, corn, soybeans, canola, and vegetables. The consistent output speed of the T-281A ensures even particle throw across all working widths, promoting optimal nutrient uptake and preventing over- or under-application that would reduce crop yield and quality.

Управление пастбищами

In livestock farming operations, the gearbox drives spreaders to apply fertilizer and lime evenly across grazed pastures. Uniform nutrient distribution improves forage density and nutritional value, supporting healthier livestock grazing conditions. The T-281A handles the demanding duty cycles typical of large-scale pasture programs where continuous spreading passes cover hundreds of hectares per season.

Уход за газоном и дерном

Golf courses, sports fields, and amenity lawns require precise and customizable fertilizer application rates to maintain turf quality. The T-281A gearbox provides the consistent disc RPM required for accurate spreading of fine granular turf fertilizers, allowing greenkeepers and groundskeeping teams to maintain application precision that meets professional turf standards without uneven greening or burn risk.

Садоводство и питомники

Greenhouse operations and plant nurseries use spreader gearboxes to distribute controlled-release fertilizers and soil conditioners across potted plant ranges and ornamental crop beds. The repeatable output speed of the T-281A ensures that fertilizer granules are distributed with the accuracy required for sensitive ornamental species where nutrient overdose or patchiness would result in visible plant quality degradation and commercial loss.

Ландшафтный дизайн и садоводство

For small-scale and medium-scale landscaping contractors, fertilizer spreaders fitted with the T-281A gearbox provide controlled nutrient spreading across garden beds, flower strips, and public green areas. The gearbox's compact size and light 7 kg weight make it well suited to smaller spreader platforms used by landscaping teams who need reliable performance without the weight penalty of heavier cast iron units.

Сады и виноградники

Tree fruit and vine growers rely on precise fertilizer placement around root zones to maximize nutrient uptake while minimizing waste and runoff. The T-281A's consistent disc drive speed allows orchard and vineyard spreaders to deliver fertilizer within the accurate bandwidth required for high-value permanent crops, where uneven application would create visible tree-to-tree variation in yield, fruit size, and sugar content at harvest.

Почвенные добавки

Beyond standard granular fertilizers, the T-281A is suited to spreading soil amendment materials such as agricultural lime, dolomite, gypsum, and granulated compost. These materials are used to correct soil pH, improve soil structure, and replenish depleted minerals. The gearbox handles the varied particle sizes and bulk densities of these materials reliably, making it a versatile asset across soil health management programs.

Fertilizer Spreader Gearbox and PTO Driveline Shaft

Fertilizer spreader gearboxes are the power conversion heart of centrifugal and pendulum spreading systems. They receive rotational energy from the tractor's PTO system and deliver it at the correct speed and torque to drive spinning discs, agitators, or augers that distribute fertilizer, seed, or granular soil amendments across the application width. The T-281A gearbox with its 1:2.91 step-up ratio converts 540 RPM PTO input into approximately 1,572 RPM output, which is the optimum disc speed for many centrifugal spreader designs to achieve the required throw distance and uniformity pattern. The aluminium housing keeps weight low while maintaining structural rigidity, and the corrosion-resistant materials and sealed bearings protect internal components from the chemically aggressive fertilizer environment. An agricultural gearbox of this specification is the defining component for spreader performance, since no adjustment of tractor speed, bout width, or application rate can compensate for a worn or incorrectly specified gearbox delivering inconsistent disc RPM. Quality fertilizer spreader gearboxes from certified manufacturers ensure that the spreading system delivers the uniform application uniformity that modern precision farming practices require.

A PTO shaft, also called a Power Take-Off shaft, is the mechanical drivetrain component that connects the tractor's output PTO flange to the input shaft of an implement such as the fertilizer spreader gearbox. Rather than requiring each piece of agricultural machinery to carry its own engine, the PTO system allows a single tractor to power a wide range of attached implements from wood chippers and balers to rotary tillers, flail mowers, and fertilizer spreaders. A standard сельскохозяйственный вал отбора мощности consists of two universal joints, inner and outer telescoping tubes allowing length adjustment, and a female spline socket that connects to the tractor's male PTO stub shaft. For 540 RPM applications, this is typically a 1-3/8" 6-spline (Z6) connection, matching the input shaft specification of the T-281A exactly.

The driveshaft must be the correct length so that it neither fully collapses nor fully extends at the maximum and minimum hitch positions, and the operating angles at both universal joints should remain equal and within the manufacturer's angular limits (typically below 15 degrees for continuous duty operation). PTO shaft guards are mandatory in most jurisdictions for operator safety. When selecting or replacing a PTO shaft for use with the T-281A gearbox, ensure that the shaft's torque rating meets or exceeds the gearbox's 8.1 kW / 540 RPM input specification to prevent driveline failure under peak spreading loads. CMN Transmission supplies compatible PTO shaft assemblies alongside the T-281A gearbox to ensure a fully matched, tested driveline system.

The T-281A gearbox and the PTO driveshaft form an integrated power transmission system. The PTO shaft delivers torsional power from the tractor at 540 RPM to the gearbox input spline. The gearbox then steps up this speed to the disc output RPM through its internal bevel gear set, while simultaneously changing the power transmission direction as required by the spreader machine geometry. Any weakness in either component directly compromises the whole system: a worn PTO shaft with loose universal joints introduces torsional vibration that accelerates gearbox bearing wear, while a gearbox with worn gears or low oil delivers inconsistent disc speed that results in poor fertilizer distribution uniformity. For this reason, it is best practice to inspect and if necessary replace both the PTO shaft and the gearbox at the same service interval, ensuring the complete driveline is in optimum condition for the spreading season ahead.

Почему стоит выбрать редукторы для разбрасывателей удобрений от CMN Transmission?

Korea CMN Transmission Co., Ltd. was established in 2000 and is headquartered in Sandan-o, Danwon-gu, Ansan-si, Gyeonggi-do, Korea. With over 100 dedicated factory employees, CMN Transmission operates as a fully integrated R&D, manufacturing, sales, and service organization focused exclusively on agricultural transmission products. Over more than two decades, CMN has grown from a domestic Korean manufacturer into a globally recognized agricultural gearbox brand, currently exporting to more than 60 destinations worldwide and maintaining long-term supply relationships with OEM machinery builders and independent equipment distributors across all major agricultural markets.

Our product range covers the complete spectrum of agricultural gearbox types, including rotary cutter gearboxes, rotary tiller gearboxes, feed mixer gearboxes, rotary mower gearboxes, fertilizer spreader gearboxes, flail mower gearboxes, post hole digger gearboxes, round baler gearboxes, square baler gearboxes, disc mower gearboxes, center pivot irrigation gearboxes, hydraulic drive gearboxes, silage machine gearboxes, orchard sprayer gearboxes, rotary rake gearboxes, combine harvester gearboxes, grain storage gearboxes, grain transportation gearboxes, corn header gearboxes, cutting bar gearboxes, and poultry feeding gearboxes. Our custom agricultural gearbox capability covers nearly one thousand specifications, enabling CMN to serve diverse machinery platforms that fall outside standard catalog dimensions.

With an annual production capacity exceeding 500,000 units, CMN Transmission consistently delivers reliable performance and long-term durability across all product lines. Our manufacturing facility operates under ISO 9001 certified quality management protocols, with dimensional inspection at every key machining stage and functional testing of assembled gearboxes before shipment. CE certification covers all products exported to European Union markets, ensuring full compliance with EU Machinery Directive safety requirements.

CMN Transmission currently exports to the United States, Canada, Mexico, Brazil, Argentina, France, Germany, Italy, Spain, the United Kingdom, Russia, China, India, Thailand, Vietnam, Turkey, Australia, New Zealand, and many more markets. Our experience spans providing technical solutions for global agricultural machinery OEMs, regional distributors, and direct-to-farm supply programs, giving us unmatched insight into the performance demands and maintenance realities of agricultural gearboxes across all major farming systems worldwide.

When you source the T-281A or any other fertilizer spreader gearbox from CMN Transmission, you are backed by two decades of agricultural transmission expertise, a certified manufacturing infrastructure, a global export logistics network, and a committed after-sales technical support team. Contact us today to discuss your requirements and experience the CMN Transmission standard of agricultural gearbox quality.

Часто задаваемые вопросы

В: Является ли редуктор разбрасывателя удобрений Comer T-281A прямой заменой редуктора CMN T-281A?
A: Yes. The CMN T-281A is engineered as a direct dimensional and functional replacement for the original Comer T-281A unit. The mounting bolt pattern (4 x Ø11 mm on 108 x 108 mm centers), input spline (1-3/8" Z6), output shaft diameter (30 mm), housing envelope, and gear ratio (1:2.91) all match the Comer specification, enabling drop-in installation without modification to the spreader frame, PTO shaft, or disc coupling. This is why it is the preferred replacement choice for fertilizer spreader gearbox customers worldwide who want a reliable, cost-effective Comer T-281A replacement.

Q: What oil should I use in the T-281A fertilizer gearbox, and how do I check the fertilizer spreader gearbox oil level?
A: The T-281A requires SAE 80W-90 gear oil meeting GL-4 or GL-5 API specification. The gearbox is supplied dry (without oil) from the factory, so oil must be added before first use. To check the fertilizer spreader gearbox oil level, position the gearbox horizontally, remove the level check plug on the side of the housing, and confirm that oil is present at the plug port. The maximum oil capacity is 0.5 L. Overfilling causes seal blow-out due to excessive internal pressure. The first oil change should be performed at 50–70 operating hours to flush break-in particles, then every 500 hours or at least once annually.

Q: What is the fertilizer spreader gearbox ratio of the T-281A, and does it affect spreading width?
A: The fertilizer spreader gearbox ratio of the T-281A is 1:2.91, meaning the output shaft rotates 2.91 times faster than the input shaft. With a standard 540 RPM PTO input, the output shaft delivers approximately 1,572 RPM to the spreader disc. This output speed is a primary determinant of the centrifugal throwing force and throw distance of the fertilizer particles, directly affecting application width. A higher-ratio gearbox produces a wider throw with a given disc and vane geometry. If your spreader requires a different disc RPM for a specific application width, please contact our technical team, as CMN manufactures multiple ratio variants within the T-281A series.

Q: Can the T-281A gearbox be used on mowers and rotary tillers as well as fertilizer spreaders?
A: Yes. While the T-281A is primarily designed and marketed as a fertilizer distributor gearbox, its application range includes mowers and multi-row rotary tillers that use compatible mounting and shaft specifications. The step-up 1:2.91 ratio is particularly suited to applications requiring higher output speed from a 540 RPM PTO input. However, operators should always confirm that the gearbox torque rating (39 N·m output) and input power (8.1 kW maximum) are appropriate for the intended machinery load before installation. Contact our technical team for application confirmation if you are fitting the T-281A to non-spreader equipment.

Q: Are fertilizer spreader gearbox parts available for the T-281A if I need to rebuild it?
A: Yes. CMN Transmission maintains a spare parts program for its agricultural gearbox range including fertilizer spreader gearbox parts for the T-281A. Key service parts available include shaft oil seals, bearing sets, and gear sets for customers who prefer to rebuild rather than replace the complete gearbox unit. For high-volume OEM customers, component-level supply can be arranged on request. Contact our parts team with your gearbox serial number and a description of the required components for pricing and availability. For most field replacement situations, however, installing a complete new unit is faster and more cost-effective than rebuilding a worn original.

Q: What causes premature gearbox failure in fertilizer spreaders, and how does the T-281A prevent it?
A: The most common causes of premature failure in fertilizer spreader gearboxes are insufficient lubrication (low or wrong oil), corrosion from fertilizer chemical contact, PTO shaft misalignment, and contamination of the oil by external moisture or dirt through failed seals. The T-281A addresses each of these failure modes with its sealed bearings that resist contamination, aluminium housing with corrosion-resistant treatment, precision-machined shaft fits that minimize misalignment, and clear lubrication instructions including the critical first oil change at 50–70 hours. Following the maintenance schedule outlined in the installation guide will prevent the majority of premature gearbox failures that operators experience with inadequately maintained units.

Q: Is the T-281A suitable for spreading liquid fertilizer as well as granular?
A: The T-281A is designed for use with granular, prilled, and granulated fertilizer spreading systems using disc or pendulum mechanisms. It is not designed for liquid fertilizer injection or liquid spreading systems, which use hydraulic drive motors or different gearbox configurations. If your spreader uses a disc system driven by a PTO gearbox for solid material application and you want to spread liquid fertilizers, consult the spreader manufacturer regarding the suitability of the disc system for liquid material before assuming any gearbox replacement will resolve application quality issues. For solid granular material spreading applications, the T-281A is a fully appropriate replacement gearbox.

Q: How long does the T-281A fertilizer spreader gearbox typically last?
A: With correct installation, proper 80W-90 oil fill, first oil change at 50–70 hours, and regular 500-hour oil changes, the T-281A should provide 5–10 or more seasons of reliable service depending on annual operating hours and working conditions. Gearboxes operated in highly corrosive environments, with frequent washing that allows water ingress, or without regular maintenance may experience shorter service life. The aluminium housing and sealed bearings are specifically chosen for long-term durability in the agricultural environment. CMN Transmission backs the T-281A with a standard warranty and a technical support team that can advise on maximizing unit life in specific field conditions.

Q: How do I know if my fertilizer spreader gearbox needs replacing rather than servicing?
A: Signs that indicate replacement is preferable to servicing include persistent oil leakage after seal replacement, grinding or clicking noise from the gear mesh that does not resolve after oil change, visible play in the input or output shaft indicating worn or damaged bearings, housing cracks or fractures from impact damage, and erosion of the aluminium housing wall from prolonged fertilizer chemical contact. If the gearbox has significant shaft play or the gear set is worn, rebuild costs typically approach or exceed the cost of a new replacement unit, making the T-281A replacement gearbox the more cost-effective choice for restoring spreader performance quickly.

Q: Does CMN Transmission supply fertilizer spreader gearboxes in other ratios for different spreading applications?
A: Yes. CMN Transmission manufactures a full range of fertilizer spreader gearboxes covering multiple ratio configurations to support diverse spreader designs and application requirements. Available ratios within the T-281 series and related models include 1:1.35, 1:1.84, 1:2.16, and 1:2.91, as well as unity (1:1) ratios for specific machine designs. Twin-output and three-output variants are also available for spreaders with agitator drives. Please contact our technical sales team with your spreader make, model, current gearbox code, and required output speed to confirm the correct replacement gearbox specification for your application.

Отзывы покупателей

Джеймс | Растениеводство | Соединенные Штаты
"We run about 800 acres of corn and soybeans in Iowa and had three spreader gearboxes go bad at the start of spring. Ordered the T-281A units from CMN and they arrived in good condition within two weeks. The spline fit on the 1-3/8" Z6 input was spot on, no fiddling needed. We did the first oil change right at 60 hours like the instructions said. Opening that drain plug we were looking for metal particles and honestly there were very few, which tells you the gears are machined properly. Running strong since."

Robert | Grain Farming | Canada
"I manage a grain farm outside Edmonton and we spread a lot of urea in the spring. Our old Comer gearbox on the Amazone spreader was starting to make noise after about 4 seasons. The CMN T-281A dropped right in, bolt holes matched, shaft sizes matched. Arrived to Canada well packed, no damage. We are now at 200 hours on it and the oil level is holding fine with no leaks at all. Good quality for the price. Will definitely order again when the other spreader needs a replacement."

Carlos | Wheat Farming | Mexico
"Hello! We have a wheat operation in Sonora with 5 spreaders. Bought two T-281A gearboxes last October for the dry fertilizer season. The team here said the installation was easier than previous aftermarket brands because the dimensions really were identical to the Comer original. We have been spreading MAP and urea with them and after 150 hours they still run smooth and cool. The aluminum housing has held up to washing down with water after spreading. Good product, and the CMN team replied fast when I had a question about oil spec."

Alejandro | Crop Farming | Argentina
"We manage 1,200 ha of wheat and corn in the Pampas region and use several centrifugal spreaders for our fertilizer program. Replaced three worn gearboxes with the CMN T-281A mid-season and honestly could not believe how easy it was. Arrived in Buenos Aires in good condition, the spline was identical to our existing driveshafts, and we had all three running within an hour. After doing the first oil change at 65 hours as instructed, everything is clean inside, no excessive metal particles, no abnormal wear. Very impressed with the quality for an aftermarket part."

Жан-Люк | Зерновое земледелие | Франция
«Мы заказали несколько редукторов у CMN для наших разбрасывателей удобрений в Босе. Передаточное число 1:2,91 идеально подходит для дисков наших машин. Доставка во Францию ​​заняла около 18 дней, что вполне приемлемо. Алюминиевый корпус имеет качественную отделку, а соединения валов точно совпадают. После сезона внесения азотных удобрений утечек масла и посторонних шумов нет. Мы рекомендуем трансмиссии CMN нашим партнерам-сельскохозяйственным предприятиям во Франции».

Клаус | Смешанное сельское хозяйство | Германия
«Мы управляем сельскохозяйственной фермой в Баварии, где используем несколько разбрасывателей навоза и искусственных удобрений. Заказали 4 редуктора T-281A в качестве резервного запаса для наших разбрасывателей Amazone и Rauch. Технические характеристики точно соответствовали данным Comer, передаточное число 1:2,91 подтверждено. Замена масла через 50 часов показала чистоту масла, без аномального содержания частиц. Сейчас, после 300 часов работы, все четыре агрегата работают без каких-либо проблем. Команда продаж CMN проявила профессионализм и быстро ответила на наши технические вопросы. В дальнейшем мы будем использовать их в качестве основного поставщика запчастей».

Дэвид | Пахотное земледелие | Соединенное Королевство
«У нас крупное смешанное пахотное хозяйство в Линкольншире. Во время весенней программы внесения азотных удобрений у нас вышел из строя редуктор разбрасывателя Vicon, что привело к двухдневному простою. Заказали редуктор T-281A у компании CMN Transmission. Доставка в Великобританию заняла менее 3 недель, он был хорошо упакован и снабжен четкой инструкцией по заправке маслом. Установили его сами примерно за 45 минут. Алюминиевый корпус кажется прочным, посадка вала чистая, и с тех пор он работает тихо. Очень довольны соотношением цены и качества по сравнению с ценой оригинальной детали, которую нам предложили».

Рахул | Сельскохозяйственная техника | Индия
«Мы — сервисная мастерская сельскохозяйственной техники в Пуне, обслуживающая множество фермеров по всей Махараштре. У нас в наличии несколько запасных редукторов для разбрасывателей удобрений, используемых производителями сахарного тростника и хлопка. CMN T-281A — один из лучших по совместимости редукторов, которые мы пробовали. Шлиц 1-3/8 Z6 идеально подходит для всех деталей, качество отделки корпуса хорошее, и за все 12 проданных нами единиц товара гарантийного обслуживания не было ни одного случая. Быстрый ответ от CMN на наш запрос и хорошая упаковка, учитывая большое расстояние доставки в Индию».

Эндрю | Зерновое земледелие | Австралия
«Мы выращиваем пшеницу и рапс в Австралии и импортируем большую часть запчастей для разбрасывателей из Кореи или Европы. CMN T-281A прибыл в Перт в отличном состоянии. Я немного волновался из-за длительной транспортировки, но упаковка была надежной, внутри коробки ничего не двигалось. Сам редуктор кажется хорошо сделанным, он тяжелее, чем некоторые дешевые аналоги, которые я пробовал раньше. Мы уже отработали два сезона, около 280 часов, и никаких проблем не возникло. Отличная связь с командой CMN во время оформления заказа. Буду рекомендовать другим фермерам в регионе».