Talking About The Carrying Weight Of The Air Expanded Shaft

The pneumatic expansionable shaft is powered by high-pressure gas, and the shaft with a convex surface is controlled by inflation and deflation to achieve the surface expansion and tension control of the shaft. The inflatable shaft is used in the special winding and unwinding equipment, which is convenient for loading and unloading, saving time and improving work efficiency. It is also called pneumatic shaft, expansion shaft, flatulence shaft, inflatable roller, inflation shaft, pressure shaft, inflatable roller, etc.

How the inflatable shaft works:
Inflate the nozzle with the air strength alignment shaft, the parts will have an effect, press the sliding gas release switch of the air nozzle, the key bar will change back to its original appearance, and in normal work, the advantages of the air expansion shaft are also very significant, one is the inflation time period, the separation of the inflatable nozzle and the gas strength equipment is rapid, which can ensure that the change of gas pressure can be completed within three seconds.

The design of the air shaft takes into account a variety of working environments, and can adapt to different thicknesses, widths, and narrowness of the coil, so it has strong professionalism and versatility. The compact design of the air shaft allows each part to have a fixed size and can be used interchangeably, which makes maintenance easy and convenient. In terms of bearing capacity, the bearing capacity of the inflatable shaft can be customized according to customer needs, and the size of the shaft diameter will be determined to a certain extent according to the actual production load demand, and the material of the shaft itself can also withstand a certain degree of pressure and load capacity.

The load-bearing weight of an inflatable shaft is mainly related to the following two factors:
1) The size of the shaft diameter and the support capacity
The size of the shaft diameter can be determined by adjusting it according to the actual needs of the customer. It can increase the advantage of ease of use. In terms of inflation and air pressure stability, it can promote the accuracy of the size and specification of the shaft diameter and the capacity that can be supported.
2) Shaft tube material
Because different shaft tube materials, its bearing capacity is not the same, under normal circumstances, if you choose aluminum alloy as the inflatable shaft tube, then his bearing capacity is relatively poor, basically 300KG; if you choose steel as the inflatable shaft tube, then it is able to bear more than one ton of weight, so our inflatable shaft enterprise users can choose their own materials according to the characteristics of the product in the process of use.

Features of the inflatable shaft:
1) Wide application: inflatable shaft as an independently designed part, from 1 inch --- 12 inches, the length and size are determined by the actual needs of customers, where there are slitting, printing, rewinding, coating, laminating, bag-making, papermaking and other work equipment or other related center coiling machinery, can be applied to the factory inflatable shaft.
2) Cost-effective and efficient: The design of the inflatable shaft is designed for the actual work needs, and it can be applied to various types of coiled pipes such as thickness, thinness, width and narrowness.
3) Long use time, simple maintenance: although the inflatable shaft is a mechanical accessory, every part in its own structure has a fixed specification, can be used interchangeably, so that it is easy to maintain. PRE's China factory has strict requirements for the quality of all parts of the inflatable shaft, and the product quality is absolutely guaranteed.
4) Single accessory: The inflatable shaft is a single spare part of the winding and unwinding machinery, and each part in its structure has a fixed specification and size, which can be decomposed and combined, so that the maintenance is convenient and durable.
5) Short operation time: separating and placing the coil can be completed with only 2 seconds of inflation and deflation action, and the placement of the coil is simple and convenient, safe and applicable. All machines and equipment for winding and unwinding can be used for inflatable shafts. The length of the inflatable shaft can be up to six meters or more, and the shortest can be several hundred millimeters, all according to the customer's needs.
6) Large carrying capacity: the inflatable shaft can be designed according to the actual model, using high-quality steel to increase the carrying capacity. For example, steel materials can be used for bearing weight of more than 1 ton.
7) Professionalism: There are professional engineering and technical personnel to conduct market research on the design, installation and use of inflatable shafts.

Structure of the inflatable shaft:
1) The shaft body is made of high-quality steel pipe, chrome-plated surface, flexible and flexible aluminum convex key, equipped with high-quality rubber liner and quick filling and exhaust nozzle, good sealing effect, long service life, detachable shaft head, easy maintenance. After inflation, the unilateral expansion height can reach 5mm to 6mm, such as the diameter before expansion is 74mm to 75mm, and the diameter after expansion can reach 79mm to 82mm. 3 inch key inflatable shaft, usually using a coil tube inner diameter of 76mm.
2) The air shaft structure is generally made according to the needs of practical application, there is no standard part, and different types are selected according to the actual needs. The common types are aluminum alloy inflatable shaft, expansion key inflatable shaft and vane inflatable shaft, etc., and some distinguish between metal and non-metal. Large bearing weight: The size of the shaft diameter can be determined according to the actual needs of customers, and high-hard steel can be used to increase the bearing weight.

Inflatable shafts are mainly used in the following machinery:
The use of inflatable shaft is very wide, and all machines with winding, unwinding and slitting can be applied to inflatable shafts, even including light metal industries. For example, the inflatable shaft is mainly suitable for printing equipment: drying machine, flexo printing machine, gravure machine, trademark printing machine, etc.; 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.

About the load-bearing capacity analysis of plate inflatable shaft and key inflatable shaft:
Characteristics of plate type inflatable shaft: the expansion part is a plate, usually the expansion height can reach 4mm to 5mm, the day/machine drive plate expansion shaft expands the whole plate, the fulcrum is evenly dispersed, and the force is uniform. It can be used for high-precision machinery or lightweight items.
The characteristics of the key type gas shaft: the expansion part is the key block, usually the expansion height of one side can reach 5mm to 6mm, the expansion shaft of the single key block expands, the fulcrum is stressed by each key block, and the balance is forced, which can be applied to the items with heavy bearing capacity of the mechanical coil. The expansion shaft of the key type expands into a single key bar, and the fulcrum spreads to each key bar to balance the force, which can be applied to items with heavy bearing capacity of mechanical coils. It usually has a variety of sizes, including 1 inch and 1 inch .5 inch, 2 inch, 2.5 inch, 3 inch, 6 inch, 8 inch, 10 inch, 12 inch, etc., 12 inch, etc.

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