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The HMA/DMA Shearwelders are the world's most precise thin gauge machine. Capabilities include material down to approximately .005" thick and as narrow as approximately .187" wide.
 The world's most precise thin-gauge Shearwelder, the semi-automatic HMA/DMA Shearwelder is ideal for thin-gauge strip processing lines where coil ends can be positioned manually from the shear to the weld station. It is capable of handling most materials up to 20" (500 mm) wide and thicknesses from .005" (0.12 mm) to .160" (4.0 mm).

HMA/DMA SHEARWELDER EXCLUSIVE FEATURES:

The HMA and DMA series Shearwelders are machines that join two (2) coil ends together by using either TIG, MIG, PLASMA, or LASER welding. The coil ends can be either overlapped or butt welded depending on the application. These machines are designed for use on either start/stop or continuous lines such as:

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 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.
  The Guild exclusive ab pusher 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.