Model Number: JH02-4500.4/4A Brand Name: LONGEM Key Specifications/Special Features: The features of four stations welding machine for aluminum and plastic doors and windows are listed as follows:1.It can be used to weld three point, two point, single point, transom, cross-transom and special angle.2.The four heads can work alone or together, which have many ways of combination and high efficiency.3.The right head can weld in any angle from 30°to 180°. ModelLJ02-4500.4/4A Input Power 4.5kw Power Supply 220V/50Hz Air Pressure 0.6~0.8Mpa Air Consumption 200L/min Welding Height 20-120mm Welding Range 400-4500mm Overall Dimension 5400*950*1700 Weight 2000kgs