Features This is a driving unit for tube expansion. It performs clockwise rotation, stopping, and counterclockwise rotation. 8 types of tube rollers are available depending on differences in the tube expansion capacity. The machine has a wide working range from 10-70 mm with a full range of pipe materials from copper to stainless steel, or super hard materials*Note Tube Expander and Mandrel coupling not included with Tube Roller Machine. Application Sugino tube expander is a product line widely used in boiler manufacturing plants. Heat exchangers. Repair, maintenance, and maintenance units in power plants. Petroleum. Heavy industry. apacity / Steel, stainess steel / 16-25 mm apacity /Copper / 19-38 mm No load / Current (A) / 2.8 No load / Speed (min) / 820 Full load / Full load / Current (A) / 8.0 Full load / Speed (min) / 480 Full load / Torgue (N.m) / 8.0 Maximum load / Current (A) / 9.0 Maximum load / Speed (min) / 450 Maximum load / Torgue (N.m) / 9.3 Spindle size / 12.7 mm