Knuckle Joint Press Machine

Knuckle joint press is ideal for forming operation where cloe tolerances are required. It is designed for operation which require slow but high force at lower zone of the stroke, therefore perfectly suited for coining, extruding, sizing and thick plate blanking. By virtue of the linkage system, the ram speed is very slow as it approaches the BDC. This low punch entry speed allows enough time to provide plastic flow of material during critical cold forming zone. Through the cold-forge procedure, the grain structure of steels is mini–eliminated to reinforce its resistance strength about two times. This advantage can improve the materials with better mechanical characteristics which are closer to tolerances, thus a lower cost material is allowed to be adapted for cold forging production.