Vertical power unit

OIL-IMMERSED DOUBLE SPEED POWER UNIT

This innovative hydraulic home elevator system features a silent helical  rotor pump paired with the JL36 / JL36-4 valve group. Its compact  design allows easy installation in narrow hoistways or under staircases,  delivering ultra low noise operation. The power unit is also ideal for outdoor elevators, factory passenger  and freight elevators, heavy duty freight lifts, laboratory lifts, and  outdoor accessibility lifts. Up to 3 kW single-phase motor.

Compact Structure 

The fully enclosed oil-immersed design (IP68)  submerges both the motor and pump in hydraulic  oil, cushioning mechanical vibration, suppressing  structural noise at the source, and ensuring efficient  heat dissipation.

Dual-Voltage Intelligent Adaptation 

Both 220V single-phase / 380V three-phase are  available, also can be customized, compatible with  global mainstream industrial voltage standards  and adaptable to different regional grid conditions.  Up to 3kW single-phase motor.

Energy Efficiency Optimization 

The VFD control reduces motor power consumption  by 60% during standby and low-speed operation.  The system's overall energy efficiency reaches IE4  level, saving over 35% energy compared to  traditional vane pump solutions.

Silent Operation 

The fully enclosed, oil immersed design (IP68 rated) completely submerges  the motor and pump in hydraulic oil. It effectively dampens mechanical  vibration transmission, suppresses structural noise at the source, and  ensures efficient heat dissipation. Thanks to the oil immersed structure and elastic shock absorbing mounts,  the unit achieves a noise level as low as 50 dB(A), measured at a 1 meter  distance. Compared with conventional vane pumps, this unit adopts our  custom-designed silent pump that eliminates oil pulsation by around 60%  (peak < 0.2 MPa), greatly improving elevator running stability.

Variable-Frequency Precision Control 

With the integrated VFD drive technology stepless speed regulation,  precisely controlling elevator speed especially the start/stop acceleration.

Reliability  

With the Class F insulated motor (temperature rise ≤80K) and silent helical  rotor pump (service life ≥10,000 hours), the MTBF exceeds 5,000 hours.