Versatile motor-driven component - design has cylinder unit where total of volumes on two sides of piston remains constant, it can run in any position, and no parts wear out

摘要

A tool with electrical drive motor has a pushing, pulling or hingeing action. The motor drives an hydraulic pump for a cylinder/piston unit providing the action, and the sum of the volumes of the cylinder on the two sides of the piston remains constant. ADVANTAGE - The product has no parts to wear out and it needs no maintenance. It can be operated in any position as it requires no container for pressurised liquid.