WJ-BS-20A Spring Coiling Machine is an auto machine in making mattress springs. It produces biconical spring of the "Bennell" type for mattresses.It combines coiling, knotting, heating and outputting total four procedures in one machine. The speed is at 60 units one minutes. It has a nice structure which keeps a stable and safe productivity. Meanwhile, it is also very easy in adjusting. It is really the economic machine for all mattress factories. SPEED 60UNITES/MINUTE EXTERNAL SPRING DIAMETER Φ65-Φ90MM SPRING HEIGHT 80-200MM SPRING TURNS 4-7TURNS STEEL WIRE DIAMETER Φ2.2-Φ2.4MM MAIN DRIVE POWER 4KW SWIFT FRAME POWER 1.5KW HEAT TREATMENT POWER 15KW