Core Shafts and Expanding Core Shafts

Double E's Specialty – Carbon Fiber Expanding Core Shafts
DLB-2000 Carbon Fiber Expanding Core Shafts (for unwind and rewind applications) CF-1000 Carbon Fiber Through Shafts (Non-expanding core shafts are available for through-roll support using air chucks)	Carbon fiber shaft body provides the strength of steel at a fraction of the weight. Proprietary corded polyprene internal bladder expands with air to force the lugs to grip the inner diameter of the core. The special bladder material reduces bladder failure and minimizes maintenance. Deep journal insertion and a close tolerance fit ensure easy access when necessary. Comprehensive two year warranty even includes bladder (most applications).
Expanding Core Shafts (LugAluminum or Steel)
	The same design features as the carbon fiber shaft, with a metal housing.
DG-2000 Expanding Core Shafts in Steel or Aluminum *(for unwind and rewind applications)*
External Element (Strip Design) Core Shaft
	For multiple slit rewinding. Simple clamping unit secures bladder/gripping element assembly for easy maintenance. Durable hard rubber grippers offer excellent core grip. Protective Teflon strip covers bladder to reduce liklihood of bladder failure. Brass air valve resists corrosion.
SR-2000 Strip Core Shafts *(for multiple slit rewind applications)*
Pneumatic/Mechanical & Mechanical Expanding Core Shafts
	Mechanical operation for strongest grip. Intended for aggressive applications where rolls are heavy and line speeds are fast. Independent lug action accommodates core variations. Concentric expansion reduces vibration and roll bounce. Roll security is guaranteed because of fail-safe design.
Pneumatic/Mechanical and Fully Mechanical Core Shafts *(for high-speed and/or heavyweight winding applications)*
Differential Rewinding Core Shaft
	Works in low or high tension applications. Allows narrow and/or varying slit widths and yields uniformly wound rolls. Slipping occurs inside the shaft so no core dust is crated – contamination is minimized.
Differential Rewind Core Shafts *(for multiple slit differential rewinding applications)*
Carbon Fiber Expanding Reel Spool Shaft
	Much lighter in weight than expanding steel shafts; requires far less driving energy. Carbon fiber housing allows faster critical speeds without increasing core size. Pneumatic/mechanical system ensures true concentric expansion.
RS-2000 Expanding Carbon Fiber Reel Spool Core Shaft *(for reel spool winding applications)*

Core shafts are used throughout the converting and packaging industries to unwind and rewind web material. Core shafts usually expand to grip the inner diameter of a core to help control web tension.

Double E offers the right core shaft for your converting application.

FOR MORE GENERAL INFORMATION ABOUT DIFFERENT TYPES OF AIR SHAFTS, PLEASE CLICK HERE.

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