Lien Sheng Ltd. has a long-time experience in the production of wire cut EDM machines.

Aristech is mainly engaged in the production of wire-cutting machines. In this process, a thin (0.1-0.5mm) bare semi-solid electrolytic copper wire passes from a weakly retracted bobbin, through fiber tensioners, deflection rollers, and guide heads, to the winding spindle. Continuous electrical connection of the electrode wire is provided by a sliding carbide contact. Electrode loss is prevented or reduced to an acceptable extent by continuous axial movement of the wire. The process requires dielectric deionized water, which circulates continuously through a filter and ion exchange resins.