DF50-180 shear cut top knife holder is a high speed pneumatic circular knife holder best utilized on light to medium paper and all non-woven materials. Cut widths down to 50 mm (1.969 in) at web speeds of up to 1,950 m/min (6,400 ft/min).
DF50-180 is designed with the innovative and well proven DIENES zero-clearance double shaft guidance system for vibration damping and maximizing top knife holder rigidity which results in cleaner slits and longer circular knife life. A micrometer adjustment device allows for precise depth control setting to ensure the highest slitting quality. This top knife holder also includes a pneumatically adjustable side force control for the precision ball-bearing guided lower head in order to maximize knife life and edge cut quality. DF50-180 features include choice of dovetail or linear bearing mounts, precision cant angle plates, 360 degree blade guard, quick change lower circular knife head, optional Easy-Set tab, optional oil wick, 180 mm (7.087 in) diameter circular blade.