The Motor Orbital OMS is a face-ported cycloidal hydraulic motor. Leveraging mature orbital technology, it has become a mainstream product in the field of low-speed, high-torque drives. Hanjiu, a company with deep expertise in the manufacturing of hydraulic power components, has launched the Motor Orbital OMS. With its stable performance and high adaptability, it is widely used in construction machinery, agricultural machinery, material handling equipment, and other fields, providing reliable power support for various types of equipment.
The Motor Orbital OMS features a pillar-type stator-rotor design with a simplified internal structure and fewer moving parts. Its volume is only 1/3 to 1/2 that of a piston motor of the same torque rating, making it lighter and better suited for installation in equipment with limited space. With high torque density, a rated pressure of up to 16 MPa, and a maximum operating pressure approaching 20 MPa, it delivers a maximum output torque of 1,900 Nm. It can directly drive components such as wheels, tracks, and slewing mechanisms without requiring additional reduction gears, thereby simplifying the equipment’s transmission system and reducing overall design and manufacturing costs. Hanjiu has optimized the internal structural layout of the motor and standardized the design of the mounting flange and output shaft to support quick installation and replacement, making it compatible with a wide range of equipment interfaces.
The Motor Orbital OMS employs face-seal distribution technology, offering high distribution accuracy and automatic wear compensation. It achieves a volumetric efficiency of at least 90% and a total efficiency of at least 85%, resulting in low operational energy consumption. Its speed range spans 15–1,850 rpm, and stepless speed regulation is achieved by adjusting the hydraulic system flow. The minimum stable speed reaches 15 rpm with no crawling phenomenon. Torque output remains constant across the entire speed range, and forward/reverse switching is smooth and shock-free. This motor features low starting pressure, with starting torque reaching 80%–90% of the rated torque. It starts easily under load conditions, is compatible with both open and closed hydraulic systems, and supports a variety of hydraulic fluids, meeting the power requirements of diverse operating conditions.
Industrial environments are complex, and the Motor Orbital OMS offers excellent environmental adaptability and durability. Core components are made of high-strength carburized steel that has undergone quenching treatment, resulting in high surface hardness and strong wear resistance; the sealing system features a high-pressure shaft seal design capable of withstanding high return oil pressure, eliminating the need for additional return oil lines. It operates stably in environments ranging from -20°C to 80°C and effectively prevents oil leakage. The motor utilizes double-row tapered roller bearings with strong radial load-bearing capacity, enabling direct drive of heavy-duty working mechanisms. Its contamination-resistant design blocks impurities in the hydraulic fluid, reducing wear on core components. With an average mean time between failures (MTBF) exceeding 8,000 hours, it is suitable for long-term operation in harsh environments such as mines, farmlands, and factory workshops—where dust, humidity, and oil contamination are prevalent.
Hanjiu specializes in the R&D and production of Motor Orbital OMS units. We strictly adhere to industry standards and have established a comprehensive quality control system covering the entire production process. Every unit undergoes multi-dimensional testing—including pressure, speed, and torque—before leaving the factory to ensure consistent and reliable quality. Hanjiu offers a wide range of models, including the OMS80, OMS100, OMS160, and OMS395, covering various displacement specifications. These products are available in three structural configurations: standard, wheel-type, and bearingless. We also provide customization services to quickly address specific customer requirements. Leveraging precision machining equipment and proven manufacturing processes, Hanjiu’s orbital motors deliver exceptional value for money. Combined with a comprehensive after-sales support system, our products have gained widespread recognition and are sold in numerous regions.
Choosing the OMS orbital motor means choosing efficient, stable, and durable hydraulic power. As a professional supplier of OMS orbital motors, Hanjiu places technological innovation at the core of its operations and quality assurance at the foundation, providing customers with high-quality products and attentive service. For more information on product specifications, customization options, and pricing, please visit the Hanjiu official website to inquire and make a purchase.
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