What Are The Different Types Of Expanding Air Shafts?

As an important transmission device, the expanding air shaft provides stable transmission and bearing functions for mechanical equipment in various industries.

According to the different structures of the inflatable part, the expanded air shaft can be divided into plate inflatable shaft, key inflatable shaft, through-bar inflatable shaft, etc. The diameter and size of the inflatable shaft can be customized according to the needs of customers, 3", 6", 12", etc., the length of the inflatable shaft can also be customized according to the length of the reel, PRE China factory has been in the field of inflatable shaft production for more than 20 years, has rich experience in customization, can be described according to the needs of customers, such as the type of inflatable shaft, dimensions, the tolerance grade of the important dimensions on the shaft, the order quantity, and special requirements. PRE China factory carefully gives a customized plan, and then submits a sketch for the customer to confirm before production.

The slatted air shaft (Leaf Type Pneumatic Shaft)expands the whole plate, the fulcrum is evenly dispersed, and the force is uniform, which can be applied to machinery with high winding precision or lighter winding items, such as: drying machine, flexo printing machine, gravure machine, trademark printing machine and so on. Other machinery includes: coating machine, leather machine, setting machine, embossing machine, slitting machine, die-cutting machine, rewinding machine, paper tube machine, bag making machine, laminating machine, laminating machine, film blowing machine, foaming machine, laminating machine, embossing machine, paper machine, non-woven machine, cloth inspection machine, hot stamping machine, battery equipment and other related machinery supporting the use.

Keybar-type inflatable shaft(Lug Type Air Expanding Shaft): The key-bar inflatable shaft expands up a single keybar, and the fulcrum spreads to each keybar to balance the force, and the key-bar inflatable shaft can be applied to items with heavy mechanical winding capacity. Features: The shaft body is made of high-quality steel pipe, the surface is chrome-plated, and the aluminum convex key is flexible and flexible; It is equipped with high-quality rubber liner and quick filling and exhaust nozzle, with good sealing effect, long service life, detachable shaft head, and easy maintenance. The scope of application includes, for example: cloth, paper, film, printing, leather, composite materials, etc., suitable for coating, slitting, printing, rewinding, composite, papermaking, bag-making, plastic and other related machinery rewinding and unwinding, can effectively improve work efficiency.

The main difference between slatted inflatable shaft and keyed inflatable shaft: Bonded inflatable shaft is mainly used for unwinding materials, and slatted inflatable shafts are mainly used for winding materials. The requirements for unwinding are generally not high, as long as the die is tightened. However, in the winding process, with the size of the winding material diameter, the strength of the shaft will be greater and larger, that is, the larger the coil diameter, the greater the force of the bearing, at this time, if the key inflatable shaft is used, the force in the core is completed by the keys on the shaft body one by one, if the force is too large, the core will be deformed, because the key protrusion is formed by a contact point. The plate inflatable shaft is different, the area in contact with the core is large, forming a large circle in contact with the core, and the core will not be deformed due to the problem of contact surface and strength.

Through-key inflatable shaft(Multi Bladder Type Air Expanding Shaft): multi-airbag design, the length of the airbag is similar to that of the main body of the inflatable shaft; It can be used for rewinding and unwinding. The use of through-bar inflatable shaft is very wide, and all machines with winding, unwinding and slitting can be applied to through-strip inflatable shaft, even including the light metal industry.

The meaning of the existence of the inflatable shaft is all over our work and life, such as napkins, newspapers, packaging bags, etc. Here are some examples:
1) Printing Equipment:
The inflatable shaft is a key component necessary for the transmission of the printing machine.
It is mainly used for paper transmission, printing plate transmission, etc.
In printing equipment, the inflatable shaft can ensure the stability and accuracy of the transmission and meet the requirements of high-speed operation.
2) Industrial Equipment:
Inflatable shafts are also used in various mechanical equipment, such as coating machines, packaging machines, paper cutters, etc.
In these devices, the inflatable shaft stabilizes the operation of the transmission system by realizing the positioning and load-bearing function of the shaft.
For example, in the field of packaging machinery, inflatable shafts are often used in the winding part of materials such as paper and plastic film, and the tightening and release of materials can be achieved by adjusting the internal air pressure.
3) Medical Equipment:
Inflatable shafts are also used in medical devices such as high-speed centrifuges, hemocentrifuges, etc.

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