DF25 Shear Cut Holder

The DF25 shear cut top knife holder is a narrow, moderate speed pneumatic circular knife holder. You can cut narrow slit widths down to 25 mm (0.984 in) at line speeds of up to 1,219 m/min (4,000 ft/min). Weighing only 3.7 kg (8.15 lbs.), the DF25 is designed around the superior and time tested Dienes zero clearance double shaft guidance system which maximizes top knife holder rigidity resulting in cleaner slits and longer circular knife life. A micrometer adjustment device allows for precise depth control setting to ensure the highest slitting quality. Features include choice of dovetail or linear bearing mounts, quick change lower circular knife head, optional Easy-Set tab, 130 mm (5.118 in) diameter circular blade and a TWO YEAR WARRANTY! When your operation requirements demand slitting know-how, high quality, and long life – there is one place to go – Dienes.

Download the DF-25 Shear Cut Holder Parts List
Drawing subject to change and may not represent the most up-to-date version.


  • 360° Guard – for operator safety
  • Oil Wicks – for blade lubrication
  • Vacuum Guard – to minimize slitting dust
  • ES-Tab – for bottom knife alignment on Center Linear Bearing mounting system
  • Knife removal guards
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Additional information

Dienes Part #

Drawing Number

Minimum Slit Width Inches

Minimum Slit Width Millimeters

Maximum Web Speed ft/min

Maximum Web Speed m/min


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