How To Select Power Unit for Elevator

How to Select Power Unit for Elevator

1. Confirm elevator load and speed

Calculate the rated load capacity and rated speed of the home elevator. The power unit output torque and flow must match the requirement to lift the full load smoothly. Keep a reasonable safety margin.

2. Check lifting height

The total lifting height affects the system pressure and oil volume demand. Higher travel needs larger oil tank and higher pressure reserve.

3. Motor power and voltage

Most home elevator power units use single-phase 220V AC motor, which is convenient for household power supply. For heavier load or high lifting speed, three-phase power can be considered. Select proper motor power according to calculation.

4. Hydraulic pump type

Gear pumps are widely used for home elevators due to low cost and stable performance. Piston pumps are for higher pressure and quieter operation but with higher price.

5. Noise level

Since it is installed in residential space, low noise is critical. Choose low-noise motor and pump assembly, with sound insulation design if necessary.

6. Safety functions

Verify key safety configurations: emergency lowering valve, pressure relief valve, overload protection, check valve to prevent free fall, and manual lowering function in case of power failure.

7. Control matching

Match with your elevator control system. Confirm solenoid voltage, valve type (on-off or proportional) and interface compatibility.

8. Oil tank size and heat dissipation

Select tank volume enough for oil circulation. For frequent use, good heat dissipation structure is required to avoid overheating of hydraulic oil.

9. Installation dimension

Check overall size of the power unit. It needs to fit the reserved machine room or cabinet space of home elevator.

10. Environment and maintenance

Consider ambient temperature and ventilation. Choose power units with easy access for oil replacement and routine maintenance