Expanding Air Shafts ~ Lug Shafts ~ Double E Company

Double E air shafts are dependable core gripping shafts with a longlasting internal bladder.

Minimized bladder failure means long air shaft life with little maintenance.

1	The air shaft has diamond pattern gripping lugs with a large surface area for best grip.
2	High strength steel or aircraft-grade aluminum housing.
3	Proprietary polyprene corded bladder resists puncture and abrasion; yields long air shaft life with minimal maintenance.
4	The air shaft has a journal connection system that does not use a press fit – maintenace, though rare, is quick and easy.
5	Stainless steel air valve will not corrode.
6	Custom heat-treated steel journals made to fit your machine.

If you would like a quotation on a steel or aluminum air shaft, please click here.

For high strength and light weight,
consider the Dura-Light Carbon Fiber Bladder Air Shaft

Please click here for information on safety chucks.

Dyna–Grip® Air Shafts - Advanced Design and Materials

Competing air shaft bladders are made with a common form of neoprene rubber which requires frequent replacement due to stretching and abrasion.
Double E air shaft lugs are available with a “diamond-grip” surface in steel, aluminum, or hard rubber, and have been field-proven to provide the maximum gripping performance possible.
Easy-maintenance journal connection - secured with flathead screws, a close tolerance fit, and deep insertion. Competing air shafts often use a tapered press fit, which requires a hydraulic press and heat to remove the journals. Bladder replacement on these air shafts can take hours while the bladder of a Dyna–Grip air shaft can be changed in just a few minutes.