T&H Lemont ships the third of three TIG mills

T&H Lemont recently shipped the third of three TIG mills to a longtime customer that produces stainless steel pipe. Known for its innovative and durable products for commercial HVAC, industrial refrigeration, power generation, and industrial processing applications, the company chose T&H Lemont to supply a series of high-quality mills to support its reputation for manufacturing equipment that is built to last.

These three identical mills, T&H Lemont model number WU11M-12, produce pipe diameters from 3/8 to 1.050 inches. The wall thickness range is from 0.020 to 0.065 inch. The mill speed is 50 feet per minute. 

The investment includes entry equipment for continuous operation. A double uncoiler, a shear end welder, and an accumulator provide a buffer so production doesn’t stop. It has a six-roll, water-cooled weld box and an inert gas system to protect and cool the weld. Furthermore, a camera-based weld seam tracking unit provides lateral and vertical positioning of the tricathode welding carriage. Each welding torch also has an independent adjustment and the system uses arc voltage control (AVC) for welding parameter stability. The flying cutoff system is a hybrid, using a carriage drive system from T&H Lemont, model FCO-125, and a rotary cutting head specified by the customer. 

Operator conveniences include single-point adjustments on the vertical roll stands, lubrication points on the operator side of the mill, and a welding control system installed within view of the weld box, allowing the operator to observe the welding process while making adjustments on the fly.