The majority of dock lift manufacturers use lift cylinders that “dead end” when the lift cylinder is fully extended. “Dead ending” the lift cylinder puts stress into the lift cylinder components. The power unit’s pressure relief valve must open and mechanical stops are required.
A PentaFlow Lift Cylinder has an internal mechanical valve that opens automatically every time the cylinder reaches full extension. The hydraulic oil is ported directly back to the reservoir.
This PentaFlow design eliminates the high stress to the lift cylinder components as well as the need for mechanical stops.
There is a clear advantage to PentaFlow Lift Cylinders.
Contact a Pentalift Sales Representative for more information.