Miyachi Unitek offers a full line of fine spot resistance welding equipment, which includes weld heads with force ranges from 0.09lbs to 150lbs.

In fine spot resistance welding, the weld heads are of linear motion design with linear races or bearings and spring-driven force adjustment. Low inertia weld heads with low mass electrode holders and low friction bearings provide fast “follow-up.” “Follow-up” refers to the capacity of the weld head to accelerate and remain in contact with the workpieces as the workpieces become molten and melt together during the weld.

Recent advances in resistance welding equipment and weld head design include electronic weld heads where weld head movement and force are electronically controlled, and/or electronically monitored, via a precise schedule. The precise control of electronic welding equipment such as electromagnetic weld heads gives users the capability to set the timing for each element of the force profile. This helps minimize impact force, duplicate the force profile between weld stations, and deliver electronic evidence of the actual weld force profile. The control of welding equipment such as electronic weld heads can be independent of, or integrated into, resistance welding power supplies.