1. Brief description CM-V Spiral tube machine is used to produce big paper tube with inner diameter of 75-450mm through changing mandrel. It consists of paper stands, gluing stands, tube forming device and cutter. 2. Technical parameter Model: CM-V Inner Diameter of tube: 75mm-450mm Thickness of tube wall: 2mm-15mm Speed: 1-15m/min Power: 15KW, 380V 50HZ Weight: ~2.7T Dimension: 4000mm*1800mm*1800mm