716 PK - Pneumatic expanding chucks with lugs

The 716/PK air chuck is recommended for unwinding and rewinding with cores.

The body of the chuck is normally made on steel and the expanders (lugs) come in either hardened steel, aluminium or rubber covered depending upon core material and torque requirements. It is available with side flange for mobile arms unwind stand mounting, or with a passing bore for passing bars mounting. It can be stepped for use with different core sizes. Expansion is accomplished by one rubber tyre that exerts pressure to engage the expanders when air is applied.

Standard sizes available for this Model are listed below.


  • Core diameter: from 70 to 300 mm
  • Chuck length: 210 mm
  • Expansion range: 8/10 mm on diameter
  • Air pressure: 5 bar (suggested 6 bar)

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