Adjustable features make the HMA and DMA Shearwelders easy to operate. The trailing coil end is sheared, then positioned in the weld station. The leading end of the second coil is sheared and then positioned in the weld station. Welding is automatic and features a variable-speed, solid-state DC motor drive and control.
Other features include reversible shear knives and weld backup bar. The HMA Shearwelder features hand operated shear and weld clamps while these items on the DMA are hydraulically operated. Edge alignment guides have hardened, replaceable faces and are adjustable. The automatic weld carriage is supported on four ball bushings for precise alignment.
The tab welding option modifies the welder for precision welds on narrow, thin gauge materials. It is used primarily on single traverse wind or press feed lines, where a perfect edge-to-edge weld is required, on narrow strip, from about .187″ (4.75 mm) to 7″ (180 mm) wide.
An exclusive feature allows the operator to make consistent high quality edge-to-edge welds on the narrowest and thinnest materials. Extra-long, completely contained side guides are also provided to assure proper strip alignment in the machine.