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ruian chuangbo machine co.,ltd
Home ProductsAir Expanding Shaft

8kg/Cm2 Air Expanding 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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8kg/Cm2 Air Expanding Shaft

8kg/Cm2 Air Expanding Shaft
8kg/Cm2 Air Expanding Shaft 8kg/Cm2 Air Expanding Shaft

Large Image :  8kg/Cm2 Air Expanding Shaft

Product Details:
Place of Origin: Zhejiang
Brand Name: CBB
Certification: CE
Model Number: Sl
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
Material: Medium Carbon Steel Lug Material: Aluminum/Steel/Rubber
Inside Expanding: Rubber Type: Lug Type
Diameter: 22-300mm Surface: Chrome Coating
High Light:

300mm Air Expanding Shaft


8kg/cm2 Air Expanding Shaft


8kg/cm2 air expandable shaft

Steel material lug type Air Expanding Shaft Big Capacity Fast Deliver


    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.



    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


    Size of Air Expanding Shaft

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



  • Short time: only takes 3 seconds for the separation and placement of the inflating shaft and the core can be complete the inflating and deflating, and it can be tightly occluded with the core without decomposing any part at the end of the shaft.
  • Simple placement: it can be moved and fixed at any position of the cure on the shaft surface by inflating and deflating.
  • High economic efficiency: shaft design for special functions, thick, thin, wide, narrow all kinds of paper tube can all be used.
  • Long life time: although the inflatable shaft is a mechanical accessories, but its own structure of each part has a fixed specification, can be used interchangeably, so that its maintenance is convenient.
  • Factory directly supply.
  • All specification can be customized.

    Air shaft type: 

    According to the expanding elements material, the air expanding shaft has following type:

  • Lug type (Steel material)
  • Lug type (Aluminum material)
  • Leaf type
  • Multi bladder type
  • Other type

    Our strengths:

  1. The first domestic independent R & D manufacturer and more than 20 years of professional manufacturing.
  2. Casting exquisite, beautiful, practical and useful.
  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.


    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.


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.

    In the past 5 years, annual growth rate has been above 20%.

    In 2019, our annual sales exceeded US$7 million, and we successfully listed on the Dutch Caribbean Securities Exchange, DCSX at the end of 2019.

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Contact Details
ruian chuangbo machine co.,ltd

Contact Person: Cai

Tel: 86-15558888956

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