The HUTH 1674 Broad Range Tube Expander has a 5 HP motor, available in single-phase (30 amp) or three-phase (20-amp). The 3-1/2" cylinder produces 25,000 lbs of expanding power and the 5" cylinder produces 49,000 lbs of expanding power. Expand tubing from 3" up to, and larger than, 6" in diameter and 3" deep—work with mild steel, stainless steel, and more. Create a slip fit in seconds flat.