HWIDA company developed this production line combining with the 1990s advanced technology of Westen Europe. The main machine is SJZ51/105 or SJZ65/132 conical twin-screw extruder, match with double-pipe single-control stainless steel spraying calibration to from a production line. It avoids the waste condition when one pipe is adjusted and the other one is affected. The auto single-control double haul-off and cutter are combined with the front calibration technology to make operation more flexible. Let you enjoy economic benefit which is from separately control double-pipe extruding. The diameter is about 20-63.It can fully use the extruding capacity of the extruder, even if it produces small diameter pipe, and it can get great output too. The main Technical parameter 1. Max output of extruder (kg/h) : 150-250 2. Vacuum tank length(m) : 6 3. Haul-off speed: 0-15 4. Max diameter of twin pipe (mm) : 63 5. Haul-off force(m/min) : 2000 6. Drive motor power(kw) : 18.5 Please visit and feel free to contact us if you are interested in the plastic machines.