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Core Holding

EMT International offers a premier lineup of customizable core holding products to meet our client’s unique application requirements.

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EMT’s lineup of customizable core holding products offers everything clients need to meet unique application requirements. Air shafts, mechanical shafts and air chucks are used in paper and converting winding, unwinding and rolling operation. These shafts and chucks expand to hold a roll core tightly, and then contract so that the shaft or chuck can be easily removed from the core.

Air shafts and chucks use a pneumatic bladder which expands under pressure, forcing lugs or leaves outward to grip the core. Deflating the bladder causes the leaves or lugs to retract.

Mechanical shafts use a rotating screw to axially move same with keyed ramps forward to force the lugs outward into the core. When the screw’s rotation is reversed, the lugs retract.


  • Journals precision machined to tight tolerances
  • Replacement cartridge
  • One-year parts/workmanship warranty
  • Customer drawing pre-approval
  • Ease of assembly/disassembly for field repair
  • Fast, easy bladder replacement lugs stay in place when bladder is removed
  • Fast response, no hassle repair or replacement
  • Shaft fits properly the first time


  • Each shaft is custom engineered to application specifications
  • Designs available to replace nearly any competitive shaft


  • Unwind stands
  • Rewind stands
  • Reels
  • Slitter reels/stands
  • Sheeters
  • Roll winders
  • Tissue and towel winders
  • Center wind winders
  • Packaging equipment
  • Printing splicers
  • Paper machine winders