The WELDPLAST S4 is the first extrusion welder of its kind with brushless, maintenance-free motor for generating preheated air. Output of up to 4 kg / 8.8 lbs. per hour is possible thanks to the S4?s powerful drive system.FEATURESCompact housing design reduces noise and guarantees optimal cooling for the electronics and driveMicroprocessor to regulate the welding process and to monitor the toolMenu with function programsDual-sided, twist-free wire intakeMaintenance-free blowerVARIOUS ACCESSORIES AVAILABLE ON REQUEST