Maximum mild steel rolling capacity 4000x65 mm / 3000 x 80 mm Hydraulic piston Useful surface on the rollers 4100 mm 1 x upper roller diameter 480 mm 2x Side rollers diameter 450 mm supported with anti-deflection Capacity map plate yield 255MPa upper roller 800 mm Roller shutter 4000X65 mm D 3000 mm Pre-fold 4000x48 mm D 3000 mm Minimum bending diameter 4000x 58 mm D 1000 mm rolling Pre-fold 4000x45 mm D 1000 mm