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 SHEARWELDERS EXCLUSIVE FEATURES:
The HMA and DMA Shearwelder are machines that join two coil ends together by using either TIG, MIG, PLASMA, or LASER welding. The coil ends can be overlapped or butt welded depending on the application. These machines are designed for use on either start/stop or continuous lines such as:
- Coil Buildup
- Tube/Pipe Mill
A hardened steel roll planisher smooths out the weld and reduces weld overthickness.
Precision machined, adjustable copper weld clamps insure consistent pressure throughout the weld cycle.
Tab pushers assist the operator in creating a perfect fit up for seamless edge-to-edge welding.
Die set and special alloy shear blades are reversible for extended life.
HMA/DMA Shearwelder for precise, thin-gauge, butt- or overlap welds
Why Choose Guild
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.