The New Hydraulic Lifting Caster

US Patent #6550101 82

This caster was designed for several methods of operation:

Constant Force:

We supply a spring-over hydraulic power cell to give this caster a full 2.00" of controlled travel. This is not just a damping unit, it is a constant source operating in both directions. The power cell can be sized to give both a high or low rate to deflection ratio. This is an entirely self-contained closed loop system.

Power Lift:

This unit can be operated with either a power unit or a manual pump.