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What do you know about 3 inch Key strip type-Cantilever air shaft?

What do you know about 3 inch Key strip type-Cantilever air shaft?

A: Feature JCTPRINT

Wide range of applications : Inflatable shaft as an independent design of accessories, from 1 inch to 12 inches, the shaft head length and the length of the 2 sides shaft end are determined by the customer's actual needs, the machine where there are strips, printing, rewinding, coating, laminating, bag making, paper making, etc,The air-expansion shaft can be applied to machines that are machined for equipment or other related centers.
Economical and Efficient : The design of the shaft is designed for practical work.It can be applied to various types of roll tube which various thick and wide.
Long service life and easy maintenance : Although the air shaft is a mechanical accessory, each part of its own construction JCTPRINT

It has fixed specifications, the surface of the parts is generally oxidized / chrome / nickel-plated to increase the surface wear resistance to reduce friction, parts can be used interchangeably, making it easy to maintain.
Single accessory : The air shaft is a single part of the winding and unwinding machine，each part of the structure has a fixed size and can be disassembled and combined to make maintenance easy and durable.
Large carrying capacity : The air-expansion shaft can be designed according to the actual model, using high-quality materials to increase the load capacity. The light-weight roll tube can be choose aluminum alloy material, It can be selected from steel materials with a weight of more than 1 ton JCTPRINT
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Short working time: Separating and placing the coil tube takes only 2 seconds to complete the inflating and deflation action. It is easy and convenient to place the coil tube. It is suitable for all kinds of equipments for winding and unwinding. axis.
The key type air expansion shaft expands from a single key strip, and the fulcrum spreads to each of the key strips to balance the force, and can be applied to articles with heavy mechanical load carrying capacity.

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B : Common size JCTPRINT

Type	Unaerated diameter（Ø mm）	Inflated diameter （Ø mm）	Applicable volume tube inner diameter （Ø mm）
1"	24.8	24.8-28	25-26
1.5"	37	40-42	38-38.5
2"	49	52-54	50-51