by Steve Mepsted, PWM Ltd.
British cold welding equipment manufacturer, PWM, is currently experiencing unprecedented demand for its cold welding machines. Sales of its EP500 rod welder, for example, have more than doubled during the last year. The EP500 offers many benefits. The machine has a wide capacity of 5.00 to 15.00 mm (0.197″ to 0.590″). It is pneumatically powered and can be connected to a central air supply or a dedicated compressor. Electrical power (a single-phase supply between 100 and 240 V) is only required for the control system, used to set the weld parameters.