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Aluminium Key Type Air Expanding Shaft Used for Packing Machine
Aluminium Key Type Air Expanding Shaft Used for Packing Machine Aluminium Key Type Air Expanding Shaft Used for Packing Machine Aluminium Key Type Air Expanding Shaft Used for Packing Machine Aluminium Key Type Air Expanding Shaft Used for Packing Machine Aluminium Key Type Air Expanding Shaft Used for Packing Machine

Aluminium Key Type Air Expanding Shaft Used for Packing Machine

Product ID : JCT-AD-004
Product Tags :
Product Attributes :

Air Shafts are used in the manufacturing processes for fitting into a core onto which materials such as paper, card and plastic film are wound. An Air Shaft is designed so that, on fitting into a core, it can be readily expanded, thereby achieving a quick and firm attachment, it may also be easily deflated to facility easy withdrawal of the shaft after winding of product is complete. Their efficient design makes them ideal for mounting onto bearing housings to enable the winding or unwinding of rolls of stock material with the minimum of equipment down time. 

Product Description


Aluminium Key Type Air Expanding Shaft Used for Packing Machine


Product Description



What is an Air Shaft ?

Air Shafts are used in the manufacturing processes for fitting into a core onto which materials such as paper, card and plastic film are wound. An Air Shaft is designed so that, on fitting into a core, it can be readily expanded, thereby achieving a quick and firm attachment, it may also be easily deflated to facility easy withdrawal of the shaft after winding of product is complete. Their efficient design makes them ideal for mounting onto bearing housings to enable the winding or unwinding of rolls of stock material with the minimum of equipment down time. The advantage of using an Air Shaft is its ability to grip the core, without damage, whilst providing a positive interface to control the web via motors & brakes. Air Shafts are available as either Key/Lug Type (with bladder down the center) or Board/Leaf Type (bladders on the periphery of the shaft).

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Key type (Lug Style) air shaft

  • Expands instantaneously for fast roll mounting.

  • Grips cores securely without core or roll damage.

  • Used for unwind or rewind positions.

  • Manual or automatic rotary union air supply.

  • Positive collapse for quick roll removal.

  • Reliable performance.

  • Manufactured to your specifications to suit your equipment.

  • Ideal for plastic, aluminum or steel cores.

  • Urethane surface lugs are available to enhance gripping.

Key type air shaft Data:
 


key type air shaft order sample
ModelExternal diameter without air inflating ( Φ mm)
External diameter with air inflating ( Φ)mmApply to reel pipe with internal diameter as below( Φ)mm
2"Φ49Φ52~ Φ54Φ50~51
3"Φ74~ Φ75Φ80~ Φ82Φ75.5~ Φ78
4"Φ99~100Φ104~ Φ106Φ~101~102
5"Φ125Φ130~133Φ126~ Φ128
6"Φ150Φ154~156Φ151~ Φ153
8"Φ200Φ206~264Φ202~204
10"Φ250Φ260~ Φ264Φ252~256
12"Φ300Φ308~310Φ302~305


Lug Type Air Shaft Structure :


Key type air shaft structure.jpg

Lug Type Air Shaft  Keys allocation drawing :

key type air shaft allocation.jpg



 
Key type air shaft weight calculation :
L2 (Shaft body)+100 length calculation2"3"6~12"
600~1000mm8~12 (kg)15~20(kg)For special calculating
 1000~1300mm12~14(kg) 20~25(kg) 
 1300~1600mm14~16(kg)  25~30(kg)
1 600~2000mm 16~20(kg)30~38(kg) 

 

Key type air shaft bearing capacity :

Material2"3"6"
Aluminum alloy/300~500(kg)800~1200(kg)
Steel 45#100(klg) Max.800~1000(kg)1200~1800(kg)


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Application



The air expanding shaft has a wide range of applications. For machines with winding, unwinding and slitting, the air expanding shafts can be used on them. It also can be also applied in the light metal industry.

Printing equipment:

drying machine, flexo printing machine, gravure machine, Grooving machine ,trademark printing machine, etc.;

Other machinery:

Coating machine, leather machine, setting machine, embossing machine, slitting machine, die cutting machine, rewinding machine, paper tube machine, bag making machine, laminating machine, film blowing machine, Foaming machine, Extruder machine, knurling machine, paper machine, non-woven machine, cloth inspection machine, bronzing machine, stamping machine battery equipment and so on

 

2.How does the air shaft work?

When the air shaft inflated by  high-pressure, the surface of it can be raised up and after deflating the air,the surface will quickly retract . The advantage of using an air shaft  is that it can greatly improve the working effeciency .

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Advantage of key strip type air shaft



1)Material advantage

A.Base roller

We adopt  hi-precision cold-drawn steel tube as the shaft body.The thickness of this kind of tube is uniform so when the rubber balloon inside is inflated ,all key strips will stick out at same height and good material can help keep a better dynamic balance .

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B.Key strip and springs

For the key strip,we adopt a whole piece of aluminum plate to make it.And it can form a good protective ring around the air  bladder. We adopt the pagoda springs to support the air  bladder which can bear 300000 compressions. .

我们的键条_副本11.jpg

2)Processing advantage

A.The connection of spindle head and steel tube is interference fit

We are using a high power press machine which can produce 80T thrust to realize all the combination of spindle head and steel tube. While other suppliers knock the spind head into the steel tube with a big hammer,no quality and accuracy.


B.The connection between our air bladder and shaft head have good sealing performance and very stable.

We use special equipment to connect the air bladder and the shaft head and then lock the outside by iron ring,,which will realize tight seal.

While,many other suppliers fasten both ends by iron wire,this operation is easy to leak ,has badly sealing performance.

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Company


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FAQ


1. How should I place the order?

For air shaft , please send us your drawing, or let us know your request.

 

2. What is your MOQ?

1 Piece.

 

3. What material of your shaft is made of?

45# steel ,aluminum.

 

4. Can you produce relative product,like adapter,hand shank?

Yes,Sure.



Contact us 


For more information of our product, please get in touch with us directly to :


Jinan Jinchangtai Industry And Trade Co.,ltd
 

Ms. Vicky (EXP. MANAGER)

Skype: +86 15552511819
Mob/Whatsapp: 0086-15552511819
Tel: 0086-0531-61300169
Fax: 0086-0531-61300169
Email: sales01@jctprinting.com
ADD: B1406,Sheng jing Square,Zhengfeng Road,250014,Lixia District,Jinan City,Shandong Province,China


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