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ruian chuangbo machine co.,ltd
Home ProductsAir Expanding Shaft

3 Inch Core Air Expandable Shaft

We have cooperate with CBB Ruian Chuangbo for more than 8 years, Chuangbo is one of our main suppliers in China. During that time, we have never had any quality problems, and the delivery is very timely. We will help solve some of our questions about the products in time. I believe we will cooperate better and longer

—— Kaku Kohli

High-quality products and timely delivery are of great help to the production of our machines. We don’t have to treat other Chinese suppliers like we do. Chuangbo always delivers on time before the delivery date, which is very good. Supplier

—— Lorena Martínez

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3 Inch Core Air Expandable Shaft

3 Inch Core Air Expandable Shaft
3 Inch Core Air Expandable Shaft 3 Inch Core Air Expandable Shaft 3 Inch Core Air Expandable Shaft 3 Inch Core Air Expandable Shaft

Large Image :  3 Inch Core Air Expandable Shaft

Product Details:
Place of Origin: Zhejiang
Brand Name: CBB
Certification: CE
Model Number: AL3
Payment & Shipping Terms:
Minimum Order Quantity: 1 piece
Price: USD100-1000/piece
Packaging Details: Plywood carton
Delivery Time: 7-30 days
Supply Ability: 2000 pieces per month
Detailed Product Description
Brand: CBB Material: Aluminum Leaf
Power: Pressed Air Type: Lath Type
Diameter: 75mm Colour: Brown
Suitable: 3 Inch Core Customized: Available
HS Code: 8443919090
High Light:

3 inch core air expandable shaft


75mm air expandable shaft


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Lath Type Air Expanding Shaft For Rewind Part For 3 Inch Core Good Concentricity


    CBB brand new air shaft is a special shaft for winding and unwinding. The shaft is created by the keys on the surface, which will be expand when the high-pressure gas filled in the shaft. Air shaft is easy to operate, the user only have the air supply with the air pressure controlled within 6-8kg/cm2. Just aired the shaft through the air valve and when user want to lock the web. Just push the core activities of the air valve to deflate, the keys will revert to its original appearance, then web can be removed easily.



    Product Purpose

    It is applicable to winding and unwinding shaft of the related machines in coating ,cutting,printing,compounding,paper making,bag making,plastic items,specially the occasion of the high-efficient roundness required or surface winding and unwinding of the paper tube.Moreover,it also can improve efficiency and quality of the products. 

It has advantages of convenient operation,quick, air shaft has big stress area, the stress distribution uniformity etc.




    Air shaft application in all industries

Industry Name
Air shaft for printing industry Flexo printing machine
Offset printing machine
Gravure printing machine
Air shaft for cutting industry Cutting machine
Air shaft for slitting industry Slitting machine
Air shaft for coating industry Coating machine
Air shaft for laminating industry Laminating machine
Air shaft for bag making industry Bag making machine

Air shaft can used for every kinds of machine which need rewind and unwind.


    Size of Air Expanding Shaft

Standard size of air shaft is useful all over the world for almost all kinds of machines

Specifications Diameter of air shaft before fill up air Diameter of air shaft after fill up air Inside diameter of suitable paper core
1" Ø 24mm Ø 27 - Ø 28mm Ø 25 - Ø 26mm
1.5 " Ø 36mm Ø 40 - Ø 42mm Ø 38 - Ø 38.5mm
2 " Ø 49mm Ø 52 - Ø 54mm Ø 50 - Ø 51mm
3 " Ø 74mm Ø 79 – Ø 82mm Ø 75.5 - Ø 78mm
4 " Ø 99mm Ø 104 – Ø 106mm Ø 101 - Ø 102mm
5 " Ø 125mm Ø 130 – Ø 133mm Ø 126 - Ø 128mm
6 " Ø 150mm Ø 154 – Ø 156mm Ø 151 - Ø 153mm
8 " Ø 200mm Ø 206 – Ø 213mm Ø 202 - Ø 204mm
10" Ø 250mm Ø 260 - Ø 264mm Ø 252 - Ø 256mm
12" Ø 300mm Ø 308 - Ø 310mm Ø 302 - Ø 305mm

We can customized other sizes of air shaft even if the air shaft is not standard size.



  • Expands instantaneously for fast roll mounting.
  • Grips cores securely without core or roll damage.
  • Used for unwind or rewind positions, especially for slitting machine unwinding.
  • 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.
  • All specification can be customized.

    Our strengths:

  • Adoping high power press machine to realize interference fit
  • Adopting hi-precision cold-drawn steel tube as the shaft body
  • Adopting whole long key bar and pagoda springs for key type air shafts
  • Adopting special equipment to connect air chamber and shaft head
  • Quality control
  • Packaging


    1. When can I get the quotation?

Usually quoted within 24 hours after receiving your inquiry. If you are very urgent to get the price, please call

us or tell us in your email, so that we can regard your inquiry priority.

    2. How should I place the order?

For air shaft and roller, please show us your drawing, or let us know your request, and then we will provide you drawing for confirmation.

    3. What is the MOQ?

We don't have MOQ request, 1 pieces order is OK.

    4. What about the lead time for production?

Up to your quantity, normally less than one month.

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

Yes. We are profeesinal in the machinery parts, our main products including aluminum guide roller, air shaft, powder brake, centrifugal blower, torque motor and so on.


About CBB Chuangbo:

    Ruian Chuangbo Machinery Co.,Ltd. is one of the biggest manufacturer of machinery parts in East China

    We have a factory more than 20,000 square meters and more than 180 employees in the company.

    The company has advanced production level and scientific research equipment, the products are matched with printing, packaging, plastics, paper, textile, pharmaceutical machinery and other industries. The products sold to allover the country and export to more than thirty countries and regions, such as: India, Pakistan, Israel, Russia, Spain and so on.

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Contact Details
ruian chuangbo machine co.,ltd

Contact Person: Cai

Tel: 86-15558888956

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