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Bird-Nest Type Multitube Airshaft

*Bird-Nest Multitube Airshaft is one of the type of the multitube airshaft.
We accpet tailor making Airshaft according to customer drawing.

More information about Air shaft is in our production description page!
  • Any Length According to Customer Dimension Drawing

  • Steel/Aluminum/Carbon Fiber

  • Depend on Design

  • 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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  (Content Writer: Mr Terrence Qi)

 --1. Bird-Nest Multitube Airshaft Overall Function:


Bird-Nest Multitube Type Airshaft is another type of Multitube Airshaft. 

It is normally made for diameter bigger than 200mm = 8inch type. Because its advantage is this structure could help to reduce the weight of the Multitube Airshaft.

The normal 200MM diameter Multitube Air shaft need to use solid aluminum tube for production. As we all know, the solid tube is always very heavy, and it would caused some trouble for working.

But if we change it into the Bird-Nest Multi Bladder Air Shaft, we use aluminum profile and make a hollow inner structure. This structure is much more lighter in weight. It can provide great convience for workers.

   --2. Why need to choose Bird-Nest Type multitube airshaft:

       Bird-Nest type Airshaft looks like the Bird nest, it is where its name come from.

It has the hollow structure, but its overall function is the same with the other multitube airshaft.

     But why you need to choose bird-nest type considering the using of airshaft?

There are serveral reasons you may need to consider:

     1. Diameter problem:

    The aluminum multitube airshaft is made by aluminum profile. It is a kind of aluminum tube. In normal case, only standard type have aluminum profile modules.

Like 3inch or 6inch, it is ligher.

     However, when it comes to bigger diameter, we need to choose solid aluminum tube. It is much more heavier. But Bird-Nest type can help to reduce the weight because of the hollow structure.

      And sometimes, certain diameter type airshaft do not have suitable aluminum tube. But bird-nest type is ok for any diameter customerization. There it will become a good choice for customers. Especially for bigger diameter type.

    2. Material Reason:

     Some customers would consider using steel material for making the multitube airshaft when there is a bigger diameter requirement or others. But steel is extremely heavy if it is made into bigger diameter.

     Because bird-nest type airshaft is still aluminum material based air shaft. As a result, it can hold bigger weight load while keeping a ligher self-weight.

    3. Cost:

    If using solid aluminum tube or steel tube to make bigger diameter airshaft. The cost would be higher. For reason there is few standard raw material tube in market. Sometimes the bird-nest multitube air shaft is a more ecnomic choice for us.

    4. Air shaft Performance:

    Although customers could choose lug type as the bigger diameter air expanding shaft choice. Multitube air shaft still have a lot of advantages, such as ligher weight, and uniform expanding, lower concentricty and jumping and easy repairing work as well.

    It can suit high-speed machine rotation requirement or high precision machine. Lug type air shaft is weaker in these area.

    To sum up, in certain using circumstances, the bird-nest multitube air shaft is a very good choice for customers.


    --3. Airshaft Feature----Expanding Strip:

       According to the different using situation of customer, we have different expanding strip design. In normal case, we will provide with the NBR rubber + Steel Sheet type Expanding element for Multitube Airshaft. 

         At the same time, we have other material like:

        (1) Full Rubber Expanding Element (without steel sheet)

        (2) Full Aluminum

        (3) Polyurethane 

        (4) Steel 



          We welcome if customers have any other material requirements or dimension design for Pneumatic Shaft!

Multitube Airshaft Expanding Strip 01

Airshaft Rubber Expanding Strip

Multitube Airshaft Expanding Strip 03

Airshaft Polyurethane  Expanding Strip

Multitube Airshaft Expanding Strip 04

Airshaft Polyurethane Expanding Strip

(save/download photo and see clear)

    --4. Airshaft Body of Bird-Nest Type Multi Bladder Airshaft:


      For this Bird-Nest Type Airshaft, we only use Aluminum Tube as the Material. But if you have higher raw material requirement. We can even consider using Stainless Steel, Carbon Fiber or Titanium

         Weight Load Ability:

       Although it is the hollow type Airshaft, its weight load ability is also good for using. 

        Our Bird-Nest Type Air shaft is examed by customers all over the world.


       Our factory is ok to make Multitube 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!

      --5. 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

Airshaft drawing example 3

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

       --6. 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!

           --7. Airshaft Inflation Inner Bladder:

          The Inner Bladder or Inner Tube of the Multitube 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


           --8. Multitube Airshaft Special Bladder Small Air valve:

              The most interesting part of the Multitube 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!

            --9. 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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Mr Terrence

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