Combine Harvester Hydraulic Spool Valve | Gerotor Draper Header Motors

Wuhan Xinlaifu Hydraulic Equipment Co., Ltd. is one of the leading manufacturers and suppliers of combine harvester hydraulic spool valve | gerotor draper header motors in China. With abundant experience, we warmly welcome you to buy high quality customized products at competitive price from our factory. Also, OEM&ODM service is available.

Type	Spool Valve
Max Torque	Cont.11-46n.m/int15-88n.m
Max Speed	Cont400-1950rpm/int.500-2450rpm
Max Flow	Cont.16-20l/min Int.20-25l/min
Max.output	Cont.1.8-2.4kw/int.2.6-3.2kw
Certificate	ISO/CE
Highlight	Combine Harvester Draper Header Motor, BMM Gerotor Hydraulic Motor, CE Gerotor Hydraulic Motor

This product is a core component kit specially designed for the hydraulic drive system of modern combine harvester grain headers (Draper Header). It integrates a high-performance Hydraulic Spool Valve and a highly efficient and durable Gerotor Motor. This system is responsible for precisely controlling the lifting and tilting of the header, as well as providing stable and speed-adjustable driving force for the flexible canvas conveyor belt (or steel chain rake). It is crucial for ensuring harvesting efficiency, crop integrity, and operational safety.

Core value: Through precise hydraulic distribution and efficient torque output, it ensures the header responds quickly and operates stably, adapts to crops with different yields and humidity levels, maximizes field operation efficiency, and reduces grain loss.

1. Hydraulic Multi-way Directional Valve (Hydraulic Spool Valve)
• Function Description: Acting as the "control center" of the system, this valve block usually contains multiple independent spools, which are used to separately control the lifting cylinders and drive motors of the header. The operator can remotely achieve stepless speed regulation and direction control in the cab via a handle or an electric control switch.
• Key Features:
◦ Precise Control: The spool design ensures linear and accurate flow control, achieving smooth lifting of the header and gentle starting and stopping of the motor, so as to avoid impact damage.
◦ Optional Load Sensing: High-end models are equipped with a load-sensing function, which can automatically adjust pressure and flow according to actual needs, significantly reducing system energy consumption and heat generation.
◦ Sturdy and Durable: The valve body is made of high-strength cast iron or steel, with internal precision grinding, strong resistance to high pressure and pollution, and can adapt to the harsh vibration and dust environment of the harvester.
◦ Compatibility: The standard interface design facilitates integration with the original factory or mainstream harvester hydraulic systems.
2. Gerotor Hydraulic Motor (Gerotor Draper Header Motor)
• Function Description: As the "power execution terminal" of the system, it directly converts hydraulic energy into mechanical energy to drive the flexible conveyor belt (Draper Belt) of the header to operate. The gerotor structure is known for its compactness and high torque starting force.
• Key Features:
◦ High Starting Torque: Especially suitable for the starting needs of the conveyor belt under heavy load and wet crop conditions, effectively preventing slipping and clogging.
◦ Stable Low-Speed Performance: It can run stably even at extremely low speeds without crawling, ensuring the gentle conveying of light or fragile crops (such as soybeans and rapeseeds).
◦ Compact Structure and High Power Density: Small in size and light in weight, it is easy to install and arrange in the narrow space of the header.
◦ High Reliability: The internal gear pair is designed simply and efficiently, with few wearing parts, long service life and low maintenance requirements.
◦ Bidirectional Rotation: Convenient for handling blockages or performing reverse cleaning operations.

• Increasing work efficiency: Fast-responsive valves and powerful motors ensure that the header keeps up with the forward speed of the harvester, reducing downtime.
• Reducing grain loss: Stable and adjustable conveying speed prevents crop shedding, breaking, or accumulation caused by excessively fast or slow speeds.
• Enhancing adaptability: Precise control capabilities enable it to easily handle complex working conditions such as lodged crops, high humidity, and high-yield plots.
• High reliability: Professional-grade design and manufacturing standards ensure continuous and stable operation throughout the harvest season, reducing breakdowns and downtime.
• Easy maintenance: Modular design allows for convenient disassembly of individual components when replacement is needed, saving maintenance time and costs.

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