The JMS/ZJMS series is a premium line of high-pressure end-face flow motors engineered for exceptional durability and precision. Featuring an integrated pinion gear and high-capacity bearings, these motors are specifically designed to maintain superior reliability and operational stability even when subjected to intense radial loads.
Optimized for compact machinery, the JMS series is the ideal rotary drive solution for small excavators with a tonnage of less than 2 tons. Its versatile design allows for the seamless integration of overflow valves and necessary blocks, ensuring a streamlined installation process and peak hydraulic efficiency in demanding environments.
| Displacement Range | 160 / 195 / 245 LPM | Max Speed | 80 RPM |
|---|---|---|---|
| Max Pressure | 11 - 15 MPa | Max Torque | 375 - 420 Nm |
| Brake Torque | 441 Nm (at 2Mpa-4.9Mpa) | Brake Pressure | 2Mpa - 4.9Mpa |
| Drain Line Requirement | Required (Max Back Pressure 20bar) | Rotation Control | CW (Port A) / CCW (Port B) |
| Suitable Equipment | Excavators < 2 Tons | Gear Module | 0.34 - 0.5 |
Integrated pinion gears and large capacity bearings ensure stability under high radial loads.
End-face flow design allows for consistent performance under high-pressure operating conditions.
Easily assemble overflow valves or necessary blocks directly onto the motor body.
Optimized for small excavator rotary drives, ensuring smooth and precise rotation.
Multiple displacement options (160, 195, 245) to match specific machine requirements.
Compatible with time delay valves and shockless relief valves for smoother operation.
Real-time tracking of JMS series motor stock levels to ensure rapid delivery.
Expert guidance on hydraulic circuit design and installation for small excavators.
Strict adherence to hydraulic manufacturing standards for every unit produced.
Scheduled service reminders to maximize the lifespan of your hydraulic motor.
End-to-end shipment visibility for global hydraulic component distribution.
Tailored specifications for pinion gear dimensions and pressure settings.
| Performance Metric | Standard Motors | JMS Series Motor |
|---|---|---|
| Radial Load Stability | Moderate | High Reliability |
| Installation Time | Complex Setup | Direct Assembly |
| Pressure Tolerance | Standard | High-Pressure Optimized |
| Service Lifespan | Average | Extended (High-Cap Bearings) |
| Operation Smoothness | Standard | Shockless (with Option) |
The JMS series is specifically engineered for the rotary drive of small excavators with a tonnage of less than 2 tons, providing high torque and stability.
A drain line is essential to prevent internal pressure buildup; the back pressure should be maintained at a maximum of 20 bar (290 psi) to protect the seals.
Rotation is controlled by the pressurized port: Port A pressurized results in Clockwise (CW) rotation, while Port B pressurized results in Counter-Clockwise (CCW) rotation.
Yes, the JMS/ZJMS series is designed so that light overflow valves or other necessary blocks can be easily assembled directly on the motor.
The integrated pinion gear, combined with large capacity bearings, allows the motor to withstand high radial loads without compromising reliability.
The maximum torque varies by displacement model, reaching up to 420 Nm for the higher displacement versions.
