DF-19 (Shear, Crush, Razor Cut Holder)

The Dienes Model DF-19-105 shear knife holder provides zero clearance vertical and horizontal stroke support for exceptional blade stiffness in operation. Slit widths to 19mm (0.748”) are possible. Originally developed for the aluminum foil industry, with a rigid flat blade, the DF-19 also has a dish blade design for synthetic and other softer materials. Two Year Warranty!

Recent advancements have included interchangeable, quick replacement lower heads for replacing dull blades, or if crush cutting or razor slitting is preferred over shear slitting for a particular web material. A simple Turn Knob release allows knife head changes with the knife body remaining on the machine.

DF-19 Technical Bulletin

Download the DF-19 Specification Sheet


  • 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
  • Spanner Wrench – for PQG holders only
  • 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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Operating Pressure

Replacement Dish Blade


Replacement Flat Blade



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