Vertical test bench compression 1000 kN / traction 700 kN

THE SOLUTION PROVIDED BYLF TECHNOLOGIES

Our customer, a designer and manufacturer of shock absorbers, approached us with a requirement for a vertical bench to apply compressive or tensile forces at controllable speeds, positions and forces.

Main functions

Objective

Characterise the force/displacement curve of a shock absorber at low speed

Issues

• Simple to operate and design
• Large stroke 1500 mm
• High force Compression 1000 kN / Traction 700 kN
• Risk of splashing elastomer or liquid contained in the tested products.

Solution and Result

The vertical machine has been designed to apply compressive or tensile forces at controllable speed, position and force.
A double-acting hydraulic cylinder generates both a compressive force (rod extension) and a tensile force (rod retraction).
The useful hydraulic pressure is generated by a variable-displacement pump, controlled by a load-sensing system.
Load-sensing system: a hydraulic system which automatically adjusts the inclination of the plate of a variable-displacement pump, according to the maximum load (pressure) required. This system ensures that sufficient pressure is always available, while optimizing the power consumed by the pump.
Two protective doors have been designed to protect the operator in the event of any elastomer or liquid splashes contained in the products tested.