OMS Orbital Motor OVERVIEW

Features and Benefits

• Superior Low-Speed Performance: Smooth rotation without crawling at minimum stable speed 15rpm, constant torque output in full speed range, shock-free forward/reverse switch

• High Efficiency & Low Leakage: Optimized internal flow channel reduces pressure loss; volumetric efficiency ≥90%, total efficiency over 85%, drain leakage 30% lower than standard models

• Heavy-Duty Durability: Ductile iron housing, carburized hardened friction pairs, reinforced roller bearings, wear-resistant Viton shaft seal optional; withstands continuous pressure up to 210bar, intermittent peak 275bar

• Flexible Customization: Multiple mounting flanges (square/A2/wheel mount), side/end oil ports, various shaft types, optional integrated brake, speed sensor and built-in check valves

• Space-Saving Structure: Smaller size than piston motors of equal torque, can directly drive wheels, slewing and reel mechanisms without extra reduction gears, simplifying equipment layout

Specifications OMS Series Orbital Motors

Applications

Packaging & Delivery

OMS Orbital Motor are typically packaged securely to prevent damage during transit. The packaging includes:

Protective Wrapping: To safeguard the pump from environmental damage.

Custom Crates: For larger, heavier pumps, ensuring safe handling.

Documentation: Includes installation, maintenance instructions, and warranty details.

Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.

OMS Orbital Motor FAQ:

1. What is the OMS Orbital Motor ?

• Advanced disc valve geroller structureIt adopts face distribution design with automatic wear compensation, keeping high volumetric efficiency after long running; column-inserted stator-rotor delivers big steady torque at low speed, low startup pressure.
• Heavy-duty bearing & robust housingDuctile iron body plus tapered roller bearings withstand strong radial loads, so it can directly drive wheels, winches and slewing parts without extra reducers. Continuous pressure up to 210 bar, peak 275 bar.
• Excellent durability for harsh environmentsHardened friction pairs, reinforced high-pressure shaft seal and full dustproof structure resist dust, vibration and moisture from farm, construction and forestry sites.
• Modular & interchangeable designMultiple flanges, ports, shafts and optional integrated brake/sensor. Fully drop-in replacement for Danfoss OMS series with identical mounting dimensions.
• High efficiency & easy maintenanceOptimized inner flow paths cut pressure loss; modular internal parts allow quick disassembly and replacement, lowering long-term service cost.
  
  

3. What is the working pressure range of OMS Orbital Motor ?

4. Can OMS Orbital Motor replace other brands?

Our OMS Series Orbital Motor serves as a universal drop-in replacement for multiple well-known hydraulic brands:

Sauer Danfoss OMS Series (Primary matching model)

All displacement sizes (80–500cc/rev) share the exact same mechanical mounting, spline shafts, oil port positions and pressure ratings as original Danfoss OMS motors. No machining or hose adjustment is required during replacement, fully interchangeable for machine repair and aftermarket upgrade.

Eaton Char-Lynn 2000 Series

It matches the dimension and performance of Eaton 2000 orbital motors, widely used on loaders, sweepers and harvesters as a cost-effective substitute.

Other compatible brands

It can also replace M+S MS series, White RS/MR series orbital motors, with matching torque, speed and pressure performance for most mobile machinery.

Key interchange advantages

Same overall outline, flange hole spacing and output shaft spline standards

Consistent continuous/peak working pressure and volumetric efficiency

Optional integrated brake, speed sensor and port layout to match original brand configurations

Lower cost and shorter lead time than original imported motors

5. What hydraulic oil is recommended for OMS Orbital Motor ?

• Primary Recommended Fluid

  Standard anti-wear hydraulic oil (AW/HM grade) with viscosity grades ISO VG32 and ISO VG46 are the official match for OMS series orbital motors.

• ISO VG 32 AW Hydraulic Oil: Suitable for indoor equipment, temperate climate and light-load agricultural machinery.

  ISO VG 46 AW Hydraulic Oil: Universal choice for construction, forestry and heavy farm machines; performs stably under high continuous pressure and summer high temperature.

• Special Climate Alternatives

• Cold northern regions below -20℃: Use HV high viscosity index anti-wear oil (HV32 / HV46) for better low-temperature fluidity.

  Sustained high-temperature heavy-load operation: ISO VG68 AW oil is acceptable as an alternative.

• Critical Oil Requirements

• Oil cleanliness standard: NAS 8 or higher, avoid particle contamination to prevent abrasion of geroller and valve plate.

  Working temperature range of matched oil: -20℃ ~ +80℃, consistent with the motor’s operating temperature limit.

  Do not mix different brands or types of hydraulic fluids.

6. What is the typical speed range of OMS Orbital Motor ?

• Low-speed limit: 15 rpm

  This is the minimum stable working speed of the OMS orbital motor. It delivers steady torque without jitter or creeping at low rotation, ideal for slow-speed drive like wheel hubs and winches.

• Max rated speed: 1850 rpm

  Do not run the motor continuously above this speed, otherwise excessive heat and rapid wear of internal friction pairs will occur.

• Practical common working speed

  Most agricultural, construction and forestry machinery runs within 50–800 rpm for long-term stable operation.
  
  

8. How can I get a quotation quickly

Please provide the following details:

• Model or displacement

• Working pressure

• Speed

• Quantity
  We will reply within 12 hours with a competitive quotation.

  
  

Certifications & Quality Assurance

OMS Orbital Motor are manufactured in compliance with international standards, ensuring high performance and reliability:

ISO 9001: Certified for quality management systems.

CE Certification: Ensures compliance with European safety, health, and environmental protection standards.

RoHS Compliance: Ensures the pump does not contain hazardous materials.

Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.

FAQ

1.What's our advantages?

Factory established in 2005;

With a great deal of production experience;

80+ employees become the professional team;

Constant updated ERP system ensure efficiency of work;

Sophisticated equipment ehanced the accuracy of products;

Professional salesmen provide the greast service;

With a large number of famous customers all over the world;

Great after-sales service;

With the long term cooperation with famous logistics and express company in China,provide the better goods service.

2.What is your payment terms?

Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.

3.Can you make my own brand on the products?

Of course we can. Just send me your logo  we can make it for you.

4.What is our main export market?

America(40.5%):USA, Canada, Argentina, Brazil

Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.

Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.

Others(5.8%).

The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.

The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.