Vertical compression test bench 1000 kN / Traction 700 kN

THE SOLUTION PROVIDED BY LF 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

PROBLEMATIC 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 was designed to apply controllable forces in compression or traction, with controllable speed, position, and force.
A double-acting hydraulic cylinder generates both a compression force (rod extension) and a traction 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 that automatically adjusts the inclination of a variable displacement pump’s plate based on the maximum required load (pressure). This system ensures that sufficient pressure is always available while optimizing the power consumed by the pump.
Two protective doors are structured to protect the operator in the event of possible projections of elastomer or liquid contained in the tested products.