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Friction Type Airshaft

*Friction shaftis special type airshaft which also known as differential airshaft. It is mainly used in rewinding process of the operation of the machine. In the most case, it is widely used in cutting machine or slitting machines. Its advantage is it can guarantee the precision during function. 
We welcome make Friction air shaft according to your drawing.
  • Any Length According to Customer Dimension Drawing

  • Steel

  • Depend on Design

  • 25-30 Days for Normal Order, Hurry Order is Negotiable

  • Wooden Box / Paper Box / Paper tube / Bubble Film

  • By Sea / By Air / By Train / By Fedex or other Express way

  • ISO9000/CE/ROHS/Certificate of Origin

  • Technical Video Support

  • T/T/Credit Card/Paypal.....


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   --1. Airshaft Overall Function:

Friction Type Airshaft 34

In the natural state, the Friction Ring of the Friction Airshaft is separated from the body steel tube of the Friction Shaft. When the inner steel tube is rotated, the Friction Ring may not rotate.

The Friction Airshaft is driven by the motor to wind up. After the Friction Shaft is connected with the air source, the Friction Rings rotates with the Friction Airshaft steel body due to the expansion of the air tube, so as to support the convex keys or balls on the Friction ring and play the role of clamping the Core on it. (core means paper tube or plastic tube or others)

During operation, the Friction Ring is controlled to slip with a certain slip torque value (torque), and the slip amount just compensates for the resulting speed difference, so as to accurately control the tension of each roll of material, achieve constant tension coiling, and ensure the coiling quality.

With the progress of winding materials, the tension required increases with the increase of winding diameter of winding materials. The tension is increased by adjusting the air pressure through the pneumatic system. The air pressure increases, the tension increases, the air pressure decreases, and the tension decreases.

    --2. Airshaft Feature----Friction Ring:

       The Friction Ring is the most important part for this type of Airshaft. According to different using situation, we use different type of Friction Airshaft Ring.

         For the 3inch type Air Friction Shaft, in China, our Friction Ring standard Inner diameter is 60mm, Outside diameter is 75mm. Sometimes, we also use 55mm or 50mm inner diameter. This dimension could be designed by customer. 


          The Ring width as standard is 25mm, but 35mm or 50mm or other dimension is ok for making. 

We support smaller or bigger dimension customerization.

          In order to reduce weight, some customers would like to using some Friction Airshaft ring parts by aluminum or nylon.

We are able to provide solutions.

Friction Type Airshaft 72

Ball Type Friction Ring

Friction Type Airshaft 70

Key + Ball Type Friction Ring

Friction Type Airshaft 79      Double Key Type Friction Ring

    --3. Airshaft Body:

Friction Type Airshaft 37

       The body is the most important part in Airshaft. 

        The Friction Airshafts in 99.99% case, their inner body is made by steel. The body steel tube of the Friction Shafts as our standard have 3 inner grooves. Inside the grooves, there will be friction felt and air tube.

        Weight load ability example: 3inch

       2000mm length Air shaft ---- weight load 500kg as maximum



       The length of the body tube of the airshafts  will decide the cost of 1piece Air shaft

       Our factory is ok to make Friction Type Air shafts at any length and any diameter.

       Just  need to give us a drawing and tell us the weight load!

       Then we can help any things related with air expanding shaft!

For more details please contact Airshaft sales:

Don't worry weight load and dimension, as a reliable Airshaft Factory, We accept all dimension Air shaft tailor making!

Bigger than Bigger

      --4. Airshaft 2 sides:

      The 2 sides of the Airshafts are the most interesting parts of Airshaft Design. It is usually the assemble             position of the Air expanding shaft.

      We have a lot of drawing example for customer reference.

Airshaft drawing example 2Airshaft drawing example 1

2. Friction airshaft

      We have can make the 2 sides of the Airshafts according to requirements!

       --5. Airshaft Inflation air valve:

       The Air inflation valve of the pneumatic shaft is one of the most important things in it.

        If the Air shaft using poor quality air valve, then it will often leaking air, and then result into using trouble!


        Normal Airshaft Suppliers are using the copper material air valve in order to saving cost,

        However, This type Copper Valve have a higher possibility of air leaking,

        For us, we are using the high quality Stainless Steel Air Valve, it is more more stable in quality!


Better Staineless Steel Airshaft Air Valve  【√】


Normal Copper Air valve for Air shaft


        We don't want to see the machine stop production just for reason of a small Air valve.

        Therefore, a good AirShaft with better Air Inflation Valve will help users to avoid a lot of using troubles.

        We Guarantee the long time using of Air inflation Valve on the Airshaft!

           --6. Airshaft Inflation Inner Bladder:

          The Inner Bladder or Inner Tube of the Friction Type Airshaft is the most special type.

            For reason of the special structure of the inflatable shaft, it use the Flat TPU tube as the expanding tube.

            Each groove has one pieces Bladder. If one Airshaft have 6 groove, length 1m, then it will use 6m of the Air              tube.



          Our company are using high quality TPU raw material, It can ensure the good using of the airshaft.

            Each roll of the Airshaft Inner Bladder is 50m, it is ok for purchasing for spare parts.

Multitube Airshaft Bladder 02Multitube Airshaft Bladder 01   Multitube Airshaft Bladder 03


           --7. Friction Airshaft Special Bladder Small Air valve:

              The most interesting part of the Friction Airshaft is: Except the bigger Air valve on the tube, there is another smaller Air valve inside the TPU tube.


                It is for connection the air, so it quality is also very important.


Multitube Airshaft Small Air valve 01

Air shaft smaller Air valve 1

Multitube Airshaft Small Air valve 02

Air shaft smaller Air valve 2


            In order to improve the quality and ensure the using experience of Airshaft for customer,

            Our company also upgrade the copper matertial in Stainless steel. It has lower possibilty of air                          leaking!

            --8. More about us:

          We, R.J Machinery is confident to say we are a reliable Air shaft factory in China and can make                          large quantity exporting supply and lower quantity customerization! 


           Our goal is to make customer feel satisfied about the quality and price of the Airshaft!        

           We welcome if you would like to have an online factory tour!

           It only take 1 minute!

           This is the video of Our Factory will fully equipped Airshaft Manufactuering Devices.

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