Copper And Aluminum Tube Butt Welding Machine , Tube Butt Welding Machine Descrpition This butt welding machine are mainly used to weld copper and aluminum tube. According to the specification: diameter of the tube (12.5mm 7.94mm 6.35mm 4.76mm), welding thickness: 0.35-0.9mm, we recommend to choose 50KVA power machine. The fixture will clamp the work piece under the effect of cylinder while the welding cylinder will squeeze the work piece for welding. Feature 1.Adpot