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Quick Details

  • Structure: Spline
  • Material: Steel, 45# steel/aluminum alloy
  • Coatings: Nickel
  • Torque Capacity: 600N.M
  • Length: customized
  • Model Number: Air expanded shaft
  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: TJ-brand
  • Type: Key type air shaft
  • working width: 600-2000mm
  • Diameter: 1inch 2inch 3inch 6inch
  • Deivery time: 7-14days
  • 45# steel: load weight over 800kgs&15000 mm width
  • aluminum alloy: load weight under 800kgs&15000 mm width
  • expanding shaft Application: High torque and load requested machine
  • requirement: drawing specification from customer
  • Note: All the specification can be customized

Packaging & Delivery

Packaging Details standard carton
Delivery Time 7-14days

TJ China air shaft suppliers hot selling High Precision Expandable Air Shaft, key pneumatic expanding air shaft


Taiwan Brand-Tianji

Reliable Quality,Reasonable Price and Good Service. 

Any email will be replied with 24 hours.  Thanks for your time!

Skype me(Sandra):tianji201206



Product Description  

 Expanding shaft Brief introduction

The air shaft introducing foreign advanced production equipment and fabrication technology, using imported balloon, the shaft is casting by aluminum alloy, shaft body plating chromium, accurate assembly,convenient to use and long operating life. When using, match with our company's professional configuration of the aerate gun filling gas for the nozzle jet, to make the shaft of off-axle appearance uniform expansion, thereby lock nitrogentreated barrel, when unloading, press on deflated mouth to deflated, then nitrogen-treated barrel can be unloaded.

 Expanding shaft  Performance and advantages

Air shaft in practical applications, it has advantages of convenient operation, quick, without damage rolls etc. 

Product usage

It is widely used in printing, cutting, coating, compounding and other machineries’ releasing and winding scroll.


This type have two kinds 45# steel and aluminium alloy, we recommend aluminum alloy tube if normal load weight less than 800kg and length less than 1500mm.

  All the specification con be customized.


Air shaft  specification:

L2+appromiate weitht:

L2+70 length2"3"6"standard typeDia before gas-filledDia after gas-filledInner dia apply to roller
600-1000 mm8-12 kg15-20 kgseparately1" standard typeΦ25mmΦ28mm~Φ32mmΦ26mm~Φ30mm
1000-1300 mm12-14 kg20-25 kgcalculate2" standard typeΦ49mmΦ52mm~Φ54mmΦ50.5mm~Φ52mm
1300-1600 mm14-16 kg25-30 kg 3" standard typeΦ74mmΦ79mm~Φ81mmΦ75.5mm~Φ78.5mm
1600-2000 mm16-20 kg30-38 kg 4" standard typeΦ149mmΦ155mm~Φ157mmΦ151mm~Φ153mm


 Air Shaft Photos Show:



 Strip type air shaft:


 Friction type

Other seires:





Packaging & Shipping  

About packaging   

About shipping & payment




Our Services  

  Why do you choose us?            

                                                                           Your choice,I promise.

Eight reasons to choose us

1,Perfect service system and after-sale protection

2,Quality problems will be solved within 24hours.

3,two or more free shipping within the pearl river delta.

4,Companies carry out the ERP management, improve enterprise fast response, one-to-one customer service tracking processing.

5,Quality assurance, free trial for 15 days, replacement within three months and one year warranty.

6,Supporting professional matched other equipments.

7,The company has more than one product testing units, the implementation of ISO9001: 2008.

8,Unique development and design capabilities to meet the needs of special-purpose equipment manufacturing.

Five Core strengths

1,The first domestic independent R & D manufacturer and 13 years of professional manufacturing. 

2,Casting exquisite, beautiful, practical and durable. 

3,Complete specifications, cost-effective and spot supply.

4,Independent research and development, special specifications can be customized.

5,Selected materials, high-tech treatment, up to the international standard test


Company Information 

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 More concerned for our products , please do not hesitate to inquiry now!

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China (Mainland) | Manufacturer, Trading Company
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6 Transactions 30,000+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $44,000
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