The ZJMK series is a high-performance end-face flow motor engineered specifically for demanding high-pressure environments. By integrating a precision pinion gear and high-capacity bearings, the ZJMK series ensures exceptional reliability and stability even when subjected to severe radial loads, making it a premier choice for heavy-duty hydraulic applications.
Optimized for efficiency and versatility, this motor is especially suited for the rotary drive systems of small excavators with a tonnage under 3.5 tons. Its modular design allows for the seamless assembly of tight overflow valves or other essential blocks directly onto the motor, significantly reducing installation complexity and maximizing operational uptime.
| Max Speed (RPM) | 80 MAX | Max Pressure (MPa) | 11.5 - 13.5 MPa |
|---|---|---|---|
| Displacement (LPM) | 160 / 195 / 245 | Max Torque (Nm) | 310 - 425 Nm |
| Brake Torque (Nm) | 785 (at 2Mpa-3.9Mpa) | Brake Open Pressure | 2Mpa - 3.9Mpa |
| Pinion Module | 0 | Pressure Angle | 20° |
| Number of Teeth | 11 | Pitch Diameter | φ53 (Mod coeff 0.4) |
Equipped with large capacity bearings to maintain high reliability under extreme radial stress.
The integrated pinion gear design reduces wear and extends the service life of the motor.
Perfectly tailored for rotary drives in excavators under 3.5 tons for peak performance.
Specialized flow architecture allowing the motor to operate efficiently at high pressures.
Easy integration of overflow valves and block components directly on the unit.
Flexible ordering options for displacement, flange size, and shaft codes to fit your needs.
Real-time tracking of ZJMK series stock to ensure rapid delivery and project continuity.
Expert guidance on displacement selection and flange mounting for precision installation.
Strict adherence to hydraulic standards with rigorous pressure and torque testing.
Tailored specifications for ports and drain lines based on your unique machinery requirements.
Global shipping network ensuring secure transport of heavy hydraulic components.
Scheduled maintenance recommendations to optimize the lifespan of the orbital motor.
| Performance Metric | Standard Motors | ZJMK Series |
|---|---|---|
| Radial Load Stability | Moderate | Excellent (High Capacity) |
| Integration Speed | External Valves | Direct Assembly |
| Pressure Rating | Standard | High Pressure Optimized |
| Maintenance Cycle | Frequent | Extended Service Life |
| Application Fit | General Purpose | Precision Mini-Excavators |
The ZJMK series is specifically engineered for the rotary drive of small excavators with a tonnage of less than 3.5 tons, providing the necessary torque and stability for rotation.
Yes, a drain line is required for proper operation. The back pressure in the drain line should be kept to a maximum of 20 bar (290 psi).
Facing the standard rotary direction at the output shaft end: Port A pressurized results in Clockwise (CW) rotation, while Port B pressurized results in Counter-Clockwise (CCW) rotation.
The combination of an integrated pinion gear and large capacity bearings allows the motor to absorb significant radial forces without compromising internal precision.
Yes, the ZJMK series is designed so that tight overflow valves or other necessary blocks can be easily assembled directly on the motor body.
We offer multiple mounting options including standard 4-hole flanges (Ø190/Ø125) and square flanges to ensure compatibility with various chassis designs.
