Pneumatic knife holders -

Slitting Products

Pneumatic Knife Holders
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Double E is the exclusive supplier of Mario Cotta knife holders in North America. The company offers a variety of knife holders for shear, crush, and razor slitting applications. Double E engineers will happy to assist in recommending the proper knife holder to suit any material, speed, or tension requirements.

"Gold" Series Pneumatic Knife Holders

Type 2


  • “Gold” and “Platinum” knife holders share many features including:
  • Easy upgrade – direct replacement for common holders.
  • Removable and reversible blade cartridge allows cutting on both sides of the anvil with the same cartridge. Switch to new cartridge in seconds.
  • Precise setup control knob uses three simple settings for error-free setup.
  • Dual rod construction ensures rigidity to reduce vibration and improve cut quality.
  • Calibrated depth knob adjusts vertical stroke after sharpening of blades – just dial in the diameter.
  • Blade guard for safety.
  • Quick cant angle adjustment without tools.
  • “Gold” – Ideal for speeds up to 5,000 fpm and web material thickness up to 700 gsm.
"Platinum" Series Pneumatic Knife Holders

Type 3

  • All of the same features listed for "Gold" Series knife holders above.
  • “Platinum” – Ideal for speeds up to 9,000 fpm and web material thickness up to 2500 gsm.
"Tiny" Series Pneumatic Knife Holders

Type 1

  • Ideal for shear cutting of lightweight web material (film, lightweight paper, tissue, etc.).
  • Narrow slit widths down to one inch.
  • Perfect retrofit for outdated shaft-on-shaft shear cut systems.
  • Speeds up to 2000 fpm.
“PPS” Series Shear Cut and Crush Cut Knife Holders

  • Lower cost alternative for basic slitting applications.
  • Ideal for high speeds (up to 8000 fpm) and heavyweight materials.
  • Solid body construction minimizes vibration and yields exceptional cut quality.
  • Calibrated depth knob adjusts stroke after sharpening blades – just dial in the diameter.
“Rocky” Crush Cut Knife Holders

  • Crush cut force of 135 lbs. with narrow slit width capability (slits down to one inch).
  • Solid body, rigid construction to minimize vibration and improve cut quality.
  • Optional safety shroud.
  • Easy adjustment.
“Lisa” Score and Razor Cut Knife Holders

  • Narrow slit widths – down to just over a half inch.
  • Replaceable cartridge allows holder body to stay in place – no repositioning after quick blade change.
  • Hot cut knife holders also available (perfect for slitting nonwovens) - hot blade cuts and seals the edge.

Related Pages:


Producer of Roofing Material Improves Slitting Quality and Safety with Gold Holders
Specialty Paper Maker Upgrades to New Fully Automatic “Expando” Slitting System
Tissue Manufacturer Improves Cut Quality with Mario Cotta “Gold” Series
Wrapping Paper Maker Keeps Production Line Running at Optimum Efficiency

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