Your Source for Hydraulic Pumps, Motors & Gearboxes | Growshine International | May 8, 2025

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Welcome to Growshine International, your trusted partner in the import and export of high-quality heavy machinery parts. We specialize in providing reliable solutions for engineering machinery, heavy trucks, agricultural machinery, and automobiles. With a focus on hydraulic components, gearboxes, and a vast range of accessories, Growshine is dedicated to sourcing and delivering the exact parts you need to keep your equipment running smoothly and efficiently. From essential hydraulic system repair components to complete replacement units, our expertise covers diverse applications across various industries.

Explore our extensive selection of Hydraulic Motors designed for various applications. We offer popular radial piston hydraulic motors like the MK series, including Mk05, Mk09, Mk12, Mk18, Mke18, Mk23, Mke23, MK35, and Mk47, often used in Poclan machinery. Additionally, find the robust Hagglunds Compact Ca Series motors such as Saon, Caon, Ca50, Ca70, Ca100, Ca140, and Ca210, known for their compact size and high torque output. Finding the right agricultural machinery hydraulic motor sources is crucial, and Growshine delivers.

Our inventory includes Staffa Hydraulic Motors, famous for their reliability in various industrial and mobile applications. This range features Single Speed Fixed Displacement motors like Hmb150, Hmb200, Hmb270, Hmb325, Hmb400, Hmb700, and the well-known Staffa Hmb series: Hmb060, Hmb080, Hmb100, Hmb125, Hmb150, Hmb200, Hmb270, Hmb325, Hmb400, and Hmb700. We also stock the 2-Speed Hmc Staffa Motor series: Hmc080, Hmc100, Hmc125, Hmc200, Hmc270, and Hmc325. These heavy equipment parts are vital for optimal performance.

We supply Hydromatik Hydraulic Motors, including the versatile A6VM series: A6vm055, A6vm080, A6vm107, A6vm140, A6vm160, A6vm250, and other A6VM models. Part numbers like Pg201529 , F062681 , and 11972743 are readily available. Find genuine and aftermarket solutions for these critical components. We also provide A2fe motors such as A2fe180 and A2fe250, and the popular A2FM series: A2FM10, A2FM12, A2FM16, A2FM23, A2FM28, A2FM32, A2FM45, A2FM56, with part numbers including 9655739 , 10r0518 , 4480065 , 10r-0518 (10r0518) , and 448-0065 (4480065) . Looking for Hydromatik A6VM rebuild kits? We can help.

Our offering extends to Sai Hydraulic Motors, including the Hydraulic Low Speed GM series: GM2, GM3, GM4, GM5, GM6, GM7, and GM9. These motors are known for their high torque at low speeds. We also stock Low Pressure Vickers Hydraulic Vane Motors like 25m, 35m, 45m, 50m, 26m, 36m, 46m, and 51m. We specialize in auto parts import export China, providing access to a global supply chain.

Discover our comprehensive range of Hydraulic Piston Pumps. This includes specialized models like the A2vk Polyurethane PU Metering Pump in sizes A2vk12, A2vk28, and A2vk55, essential for precise fluid dispensing. We offer the reliable A4vso Pump series: A4vso40, A4vso71, A4vso125, A4vso180, A4vso250, A4vso355, A4vso500, and A4vso750, widely used in various hydraulic systems.

We supply Hydromatik A4vtg Pumps, including A4vtg071, A4vtg071hw, A4vtg071ep1, A4vtg071ep2, A4vtg090, A4vtg090hw, A4vtg090ep1, and A4vtg090ep2, often found in mobile equipment. Find Eaton Vickers Pvxs Pumps such as Pvxs-250m06r0001r01svvadf, Pvxs-066, Pvxs-090, Pvxs-130, Pvxs-180, and Pvxs-250. These Eaton Vickers PVXS pump suppliers are crucial for maintaining equipment like excavators and loaders. We also carry Epiroc Atlas Copco Pumps like the A10vso series: A10vso18, A10vso28, A10vso45, A10vso71, A10vso100, A10vso140, and other A10vso models, with part number 3222338040 . Hydromatik A4VSO rebuild kits are part of our extensive offerings.

Our piston pump selection includes Variable Displacement Eaton Vickers Pvh Piston Pumps: Pvh57, Pvh74, Pvh98, Pvh131, Pvh141, and other Pvh models. For transit mixers, we offer specific Eaton Piston Pumps like 3923, 4623, 5423, 6423, 7620, and 7623. We provide high-quality piston pump repair parts and kits. For Liebherr machinery, we stock pumps like A11vo95, 10017105, A11vo130, A11vo145, A11vo190, and A11vo260, with Liebherr part numbers 10035832A , 10017105A , 11067017 , and 10803187 . Get genuine Liebherr hydraulic pump repair components here.

We also offer Hydraulic Variable Worldcup Park Denis Pumps, including P7w1r2bc1000, P6w, P7w, P8w, and specific models like Hydraulic P7w 2L1b C10 00 from the Park Denis P6, P7, P8 Series: P8w, P6w, P7w, P8w. Our inventory includes A7vsl Pumps such as A7vsl250, A7vsl355, A7vsl500, A7vsl1000, and A7V models like A7V250, A7V355, A7V500, A7V1000, with part numbers including 5613116 , 5617518 , 5617519 , and 5608490 . We stock Sauer Piston Pumps from the 90r and 90L series, including 90r075, 90r100, 90r130, 90r180, 90r250, 90L075, 90L100, 90L130, 90L180, and 90L250. Find genuine Sauer 90 series piston pump manual or parts with us.

Explore our selection of Hydraulic Vane Pumps. This includes Park Denis Vane Pumps like T6cr, T6cy, T6d, T6ds, T6dm, with part numbers such as 021434007 and 021434-007 (021434007) . We also supply Sandvi Vane Pumps with part numbers 703650 and 663400018 . Find Hydraulic Variable Vane Pumps like PV7, 1PV6V3, 1PV2V3, Pvv1, Pvv4, and Pvv52. We offer comprehensive vane pump repair solutions.

We stock Vickers Vane Pumps, including Intra Hydraulic models like 25vq, 35vq, 45vq, 2520vq, 3520vq, 3525vq, 4520vq, 4525vq, and 4535vq, with part numbers such as 1212501 , 2310039048 , and 121-2501 (1212501) . Find Tokyo Keiki Tokimec Sqp Vane Pumps: Sqp1, Sqp2, Sqp3, Sqp4, Sqp21, Sqp31, Sqp41, Sqp32, Sqp42, and Sqp43. We provide high-quality parts for reliable operation. We are a trusted OEM hydraulic cartridge supplier.

Maintain your hydraulic systems with our extensive range of Vane Pump Cartridges and Cartridge Kits. We offer OEM cartridges like T7EEC, T7edbs, T7edb, T7ddbs, T67edcm, T67edcs. Find Tokyo Keiki Tokimec Sqp Vane Pump Cartridge Kits covering models Sqp1, Sqp2, Sqp3, Sqp4, Sqp21, Sqp31, Sqp41, Sqp32, Sqp42, and Sqp43. We provide Vickers vane pump cartridge kits for various applications.

We stock a wide variety of Vane Pump Cartridges and Kits with numerous part numbers, including 3G2720 (3G-2720) , 7j0554 , 1u2667 , 7j580 , 3G2195 , 3G1266 , 3G2233 , 7j7966 , 3G7654 , 3G2835 , 4t0422 , 3G7659 , 3G7665 , 3G2237 , 3G2721 , 3G2718 , 4t1893 , 1u2671 , 7j7967 , 7j1397 , 3G7664 , 4t2626 , 6e4719 , 1u2668 , and 9j5053 . We also offer OEM Park Denis Pump Cartridge Kits like T7EEC, T7edbs, T7edb, T7ddbs, T67edcm, T67edcs, T6edcr, and T67edcrs. These hydraulic cartridge kits are essential for pump maintenance.

Our inventory includes specialized gearboxes and drives. Find Gear Reduction units from Oerlikon and Fairfield, including Planetary Gearbox, Track Drive, Final Drive, and Swing Drive models like Oerlikon Cw18, CT18, CT26, CT35, CT45, CT50. We provide reliable solutions for engineering machinery final drive repair and swing drive gearbox needs. We also offer Bonfiglioli Winch Gearboxes, including series 805, 806, 810, 811, and 813. Need Bonfiglioli winch gearbox parts? We have them.

We stock a range of individual part numbers for various hydraulic and machinery components, including 3640982 , 190-2279 (1902279) , 195-3577 (1953577) , 187-9090 (1879090) , 112-6564 (1126564) , 235-4110 (2354110) , 364-0982 (3640982) , 1953577 , 1126564 , 2354110 , 10r-0538 (10r0538) , 10r0538 . We also provide parts like 63531440 , 10r4579 , Bhn1303 , 10r-4579 (10r4579) for Dieci, and Atlas Copco Epiroc parts such as 2657415044 , 57416927 , 55065740 , 1t833025600 , 9t-8345 (9t8345) , and 9t8345 . We are your source for Epiroc hydraulic pump parts and other specialized components.

Understanding the components is key to proper maintenance and repair. Here are some definitions:

Hydraulic Pump: Converts mechanical power into hydraulic energy by pumping fluid. Location: Often mounted on the engine or transmission power take-off (PTO). Example: Excavator (e.g., Caterpillar 336) Main Hydraulic Pump (A4VSO type). 中文: 液压泵：将机械能转化为液压能的装置，通过泵送流体实现。通常安装在发动机或变速箱的取力器（PTO）上。示例：挖掘机（如卡特彼勒 336）主液压泵（A4VSO 型）。 Русский: Гидравлический насос: устройство, преобразующее механическую энергию в гидравлическую, путем перекачивания жидкости. Часто устанавливается на двигатель или вал отбора мощности (ВОМ) трансмиссии. Пример: Главный гидравлический насос экскаватора (например, Caterpillar 336) (тип A4VSO).

Hydraulic Motor: Converts hydraulic energy back into mechanical power (rotary motion). Location: Connected to wheels, tracks, winches, or swing mechanisms. Example: Loader (e.g., John Deere 644K) Wheel Drive Motor (Sai GM type). 中文: 液压马达：将液压能转换回机械能（旋转运动）的装置。连接到车轮、履带、绞车或回转机构。示例：装载机（如约翰迪尔 644K）轮式驱动马达（Sai GM 型）。 Русский: Гидравлический двигатель (гидромотор): устройство, преобразующее гидравлическую энергию обратно в механическую (вращательное движение). Подключается к колесам, гусеницам, лебедкам или механизмам поворота. Пример: Гидромотор привода колес погрузчика (например, John Deere 644K) (тип Sai GM).

Planetary Gearbox: A type of gear system that uses planetary (or 'sun' and 'planet') gears to provide high torque reduction in a compact space. Location: Often integrated into final drives, swing drives, or winch drives. Example: Tracked Dozer (e.g., Komatsu D65) Final Drive Gearbox (Fairfield type). 中文: 行星齿轮箱：一种齿轮系统，利用行星（或“太阳”和“行星”）齿轮在紧凑空间内提供高扭矩减速。通常集成在终传动、回转驱动或绞车驱动中。示例：履带式推土机（如小松 D65）终传动齿轮箱（Fairfield 型）。 Русский: Планетарный редуктор: тип зубчатой передачи, использующий планетарные (или 'солнечную' и 'планетарные') шестерни для обеспечения высокого передаточного числа и крутящего момента в компактном корпусе. Часто интегрируется в бортовые редукторы, редукторы поворота или редукторы лебедок. Пример: Бортовой редуктор гусеничного бульдозера (например, Komatsu D65) (тип Fairfield).

Vane Pump Cartridge: The internal pumping element of a vane pump, typically consisting of a rotor, vanes, cam ring, and side plates. It's often replaceable as a unit. Location: Inside the body of a vane pump. Example: Forklift (e.g., Hyster H155FT) Vane Pump Cartridge (Vickers VQ series type). 中文: 叶片泵内芯/插装件：叶片泵的内部泵送元件，通常由转子、叶片、凸轮环和侧板组成。通常作为一个整体可更换。位于叶片泵体内部。示例：叉车（如海斯特 H155FT）叶片泵内芯（Vickers VQ 系列）。 Русский: Картридж лопастного насоса: внутренний элемент лопастного насоса, как правило, состоящий из ротора, лопастей, кулачкового кольца и боковых пластин. Часто заменяется как единый блок. Расположен внутри корпуса лопастного насоса. Пример: Картридж лопастного насоса вилочного погрузчика (например, Hyster H155FT) (тип Vickers серии VQ).

Final Drive: A gearbox system, often planetary, that reduces speed and increases torque just before the wheels or tracks, providing the final power transmission to the ground. Location: At the wheel hub or track sprocket. Example: Excavator (e.g., Volvo EC210) Track Drive Final Drive. 中文: 终传动：一种通常为行星式的齿轮箱系统，在车轮或履带之前降低速度并增加扭矩，提供最终的动力传输到地面。位于轮毂或履带驱动轮处。示例：挖掘机（如沃尔沃 EC210）履带驱动终传动。 Русский: Бортовой редуктор (финальная передача): система редуктора, часто планетарная, которая уменьшает скорость и увеличивает крутящий момент непосредственно перед колесами или гусеницами, обеспечивая окончательную передачу мощности на грунт. Расположен на ступице колеса или ведущей звездочке гусеницы. Пример: Бортовой редуктор привода гусеницы экскаватора (например, Volvo EC210).

Swing Drive: A gearbox and motor assembly that rotates the upper structure (cab and boom) of an excavator or crane. Location: Mounted below the cab, connected to the swing bearing. Example: Excavator (e.g., Komatsu PC300) Swing Drive Gearbox and Motor. 中文: 回转驱动：一种齿轮箱和马达组件，用于旋转挖掘机或起重机的上部结构（驾驶室和动臂）。安装在驾驶室下方，连接到回转支承。示例：挖掘机（如小松 PC300）回转驱动齿轮箱和马达。 Русский: Редуктор поворота: узел редуктора и гидромотора, который вращает верхнюю часть (кабину и стрелу) экскаватора или крана. Устанавливается под кабиной, соединяется с опорно-поворотным устройством. Пример: Редуктор поворота и гидромотор экскаватора (например, Komatsu PC300).

Winch Gearbox: A gearbox used to reduce the speed and increase the torque of a hydraulic motor or other power source driving a winch drum. Location: Attached to the winch drum assembly. Example: Tow Truck (e.g., Miller Industries Century) Winch Gearbox (Bonfiglioli type). 中文: 绞车齿轮箱：用于降低液压马达或其他驱动绞车卷筒的动力源的速度并增加扭矩的齿轮箱。连接到绞车卷筒组件。示例：拖车（如 Miller Industries Century）绞车齿轮箱（Bonfiglioli 型）。 Русский: Редуктор лебедки: редуктор, используемый для уменьшения скорости и увеличения крутящего момента гидромотора или другого источника питания, приводящего в движение барабан лебедки. Прикреплен к узлу барабана лебедки. Пример: Редуктор лебедки эвакуатора (например, Miller Industries Century) (тип Bonfiglioli).

Piston Pump: A type of hydraulic pump that uses pistons to pump fluid. Can be fixed or variable displacement. Location: Mounted on the engine or PTO. Example: Concrete Mixer Truck (e.g., Liebherr HTM 1204) Piston Pump (Eaton 5423 type). 中文: 柱塞泵：一种利用柱塞泵送流体的液压泵。可以是定量或变量排量。安装在发动机或取力器上。示例：混凝土搅拌车（如 Liebherr HTM 1204）柱塞泵（Eaton 5423 型）。 Русский: Поршневой насос: тип гидравлического насоса, использующий поршни для перекачивания жидкости. Может быть с постоянным или переменным рабочим объемом. Устанавливается на двигатель или ВОМ. Пример: Поршневой насос автобетоносмесителя (например, Liebherr HTM 1204) (тип Eaton 5423).

Metering Pump: A type of positive displacement pump used to dispense precise volumes of fluid, often chemicals or polyurethanes. Location: In industrial process lines or spraying equipment. Example: Polyurethane Foam Machine (e.g., Graco Reactor) Metering Pump (A2VK type). 中文: 计量泵：一种容积式泵，用于分配精确体积的流体，通常是化学品或聚氨酯。位于工业流程管线或喷涂设备中。示例：聚氨酯发泡机（如 Graco Reactor）计量泵（A2VK 型）。 Русский: Дозирующий насос: тип объемного насоса, используемый для дозирования точных объемов жидкости, часто химикатов или полиуретанов. Расположен в промышленных технологических линиях или распылительном оборудовании. Пример: Дозирующий насос установки для напыления полиуретана (например, Graco Reactor) (тип A2VK).

Radial Piston Motor: A type of hydraulic motor where pistons are arranged radially around an output shaft. Known for high torque at low speeds. Location: Often used for wheel drives or heavy-duty industrial applications. Example: Forestry Machine (e.g., Ponsse Ergo) Wheel Motor (Hagglunds CA type). 中文: 径向柱塞马达：一种液压马达，其柱塞呈径向围绕输出轴排列。以低速高扭矩著称。通常用于轮式驱动或重型工业应用。示例：林业机械（如 Ponsse Ergo）车轮马达（Hagglunds CA 型）。 Русский: Радиально-поршневой гидромотор: тип гидравлического мотора, где поршни расположены радиально вокруг выходного вала. Известен высоким крутящим моментом на низких оборотах. Часто используется для привода колес или в тяжелых промышленных применениях. Пример: Колесный гидромотор лесозаготовительной машины (например, Ponsse Ergo) (тип Hagglunds CA).

Here are some common questions customers have:

How often should I change the hydraulic oil in my equipment? The frequency depends on the equipment type, operating environment, and hydraulic fluid type. Always follow the manufacturer's recommendations in the operator's manual. Regular oil analysis can also help determine the optimal change interval and detect potential issues early. This is a common heavy equipment maintenance question.

What's the difference between a fixed displacement and variable displacement hydraulic pump? A fixed displacement pump delivers a constant volume of fluid per revolution, regardless of system pressure. A variable displacement pump can change the volume of fluid it delivers per revolution, often controlled by system pressure or external signals, allowing for more efficient power usage. Understanding variable displacement pump operation is key for hydraulic system efficiency.

Why is proper filtration important in a hydraulic system? Contamination is the leading cause of hydraulic component failure. Proper filtration removes solid particles, water, and other contaminants from the hydraulic fluid, protecting pumps, motors, valves, and cylinders from wear and damage, extending component life and maintaining system efficiency. Effective hydraulic system repair often starts with checking the fluid and filters.

Growshine International (格莳国际) is your specialist for import and export trade of engineering machinery parts, heavy truck parts, agricultural machinery parts, and auto parts. We connect global suppliers with customers needing reliable components. Our expertise spans fluid power parts and mechanical drive systems, ensuring you get the right fit for your needs.

Equipment Fault and Solution: Hydraulic Cylinder Drift
Fault: A hydraulic cylinder on a piece of engineering machinery (e.g., a backhoe loader boom cylinder) slowly extends or retracts on its own when the control valve is in the neutral or hold position and the cylinder is holding a load.
Possible Causes: The most common cause is internal leakage either within the cylinder itself (worn piston seals or bore) or within the directional control valve (worn spool or valve body). Less likely causes can include leaking pilot check valves if the circuit uses them.
Solution: 1. Confirm Internal Leakage: To differentiate between cylinder and valve issues, disconnect the hydraulic lines at the cylinder ports. Cap the ports on the cylinder and plug the lines. Actuate the control valve (momentarily) to ensure no pressure is trapped, then attempt to manually move the cylinder rod. If it still drifts, the problem is likely within the cylinder (seals or bore). If it holds firm, the issue is upstream. 2. Test the Valve: If the cylinder holds when capped, reconnect the lines to the cylinder. With a load on the cylinder, center the control valve spool. If the cylinder drifts, the control valve is leaking internally, allowing fluid to bypass the spool. 3. Repair/Replace: If the cylinder is leaking internally, it requires seal replacement or potentially repair of the bore if damaged. If the valve is leaking, it may need a valve rebuild kit, lapping of the spool and body, or outright replacement depending on the severity of wear. Always depressurize the system before attempting any repairs.

At Growshine, we are committed to providing high-quality aftermarket and genuine parts, including everything from hydraulic components like A6VM motors and A10VSO pumps to Staffa and Vickers parts, Fairfield gearboxes, and a wide array of vane pump cartridges. We aim to be your reliable source for all your heavy machinery and automotive part needs, ensuring your equipment operates at peak performance. Contact us today to find the specific part numbers and components you require.

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