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Multi Bladder Type Air Expanding Shaft 1 Inch for Machine

Air shaft is a special shaft for winding and unwinding. The shaft is designed by the key/leaf/lug on the surface, which will be expanded when the high-pressure gas filled enter into the shaft inside. The customer just aired the shaft through the air valve and when user want to lock the coils or web, and just push the core of the air valve to deflate, the keys will revert to its original appearance, then web can be dismantled simply.

 

Product tags

Description

Name:Multi Bladder Type Air Expanding Shaft 1 Inch
Model:1inch diameter
Expanding elements:Rubber Lugs
Outer Diameter:24.5mm–24.8mm(can be customized as per customers’ demands or drawings)
Inner Diameter of Applicable Tube:25.4mm(Customers need to inform their CORE ID exactly)
Shaft BodySteel
Shaft EndSteel
ColourSilver

 

1inch air shafts are used in the producing processes for fitting into a core onto which materials such as fabric, nonwoven and plastics are winded. An Expanding Shaft is designed so that, on fitting into a core, it can be easily expanded, thereby achieving a quick and firm attachment, it may also be rapidly deflated to facility easy withdrawal of the shaft after winding of product is complete.

Specially recommended surface multi bladder inflation shaft:

The traditional air shaft has only a single central airbag, and the expansion force applied to each key is not uniform, and the concentricity is difficult to ensure, and the maintenance of the bladder is difficult after the damage, which is very time consuming.

The surface continuous long-key inflatable shaft has many advantages:

1. The key strips and airbags are evenly arranged on the surface of the shaft body. Unscrew the two ends of the convex key and press the rubber key strip to remove the airbag easily. The maintenance process is less than ten minutes. The disassembly process does not reduce the flatness and balance of the pneumatic shaft.

2. Since the expansion parts are evenly distributed on the shaft diameter surface, the flatness and balance of the whole shaft are good, and the concentricity is high, which is especially suitable for high-speed operation of the machine;

3. Multiple sets of airbags share the internal intake valve of the air-expansion shaft, so they are not eccentric and ensure high torque characteristics.

4. The key strip is made of rubber and steel sheet. The airbag is installed under the key strip. When the steel is swollen and contracted, the steel sheet acts to protect the airbag. The height of each key strip is consistent and stops at the limit device, so it will not damage the inner wall of the paper tube. Where the torque requirements are particularly high, the key strips must be made of steel, aluminum or hard plastic.

This new scientific air shaft product, to meet the needs of higher performance, will become the mainstream of the future market.

5, Scope of application: Used in the occasion of high requirements for the uniformity of the end face of the rewinding and unwinding, high-speed operation.

Technique parameter 

ModelInner Diameter of Paper TubeShaft Diameter Before ExpandingShaft Diameter After Expanding
1″ ShaftΦ25.4mmΦ24.5mmΦ27.5mm-Φ28mm
1.5″ ShaftΦ38mmΦ37mmΦ41mm
2″ ShaftΦ50mmΦ49mmΦ53mm
3″ ShaftΦ76.2mmΦ74mm-Φ74.5mmΦ82mm
4″ ShaftΦ102mmΦ100mmΦ108mm
6″ ShaftΦ152.4mmΦ150mmΦ158mm
8″ ShaftΦ203.2mmΦ200mmΦ210mm
10″ ShaftΦ254mmΦ250mmΦ260mm
12″ ShaftΦ304.8mmΦ300mmΦ312mm

Packing and Shipping

Order Details

Item Name1inch Multi Bladder Type Air Expanding Shaft
MOQ(Minimum Order Quantity)1Pc
Lead time15-18 days after receiving the deposit
Calculated Weight8kg/Meter
PackageCarton/Wooden Box
Price TermEXW,FOB, CIF, etc
Payment termTT,L/C,Western Union
Country of OriginChina

 

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