Compare to the two post car lift, the hydraulic four post car lift, also called as four column car lift, has its special characters:
1. Cable tubing hidden installation, beautiful appearance.
2. Hydraulic drive, steady lifting, pneumatic unlock.
3. Manual descent, safe and easy.
4. Hydraulic lifts are also used for the secondary lift.
5. Four wire ropes are used to force the lifter to rise and fall synchronously to prevent the vehicle from sliding sideways.
6. Equipped with anti-skid device.
7. Bridge deck spacing adjustable, suitable for all kinds of vehicles.
Model    Lifting Capacity    Lifting Height    Lifting Time    Down Time    Pass Width    Total Width    Total Height    Weight
HST440W (1st   Lifting)    4000kg    1900mm    60    ≥20≤40    3014mm    3414mm    2319mm    1543kg
                (2nd Lifting)    2000kg    250mm    
HST440    4000kg    1900mm    60    ≥20≤40    3014mm    3415mm    2319mm    1165kg 
https://www.haosailmachinery.com/auto-maintenance-machinery/hydraulic-four-post-car-lift.html