Inflatable rubber mandrel( D*L=710*550*21000mm inflatable formwork used for making concrete formwork ) is a kind of cylinder bag that can expand, shrink, used to form concrete component of cavity, in the process of manufacturing  hollow component, put it in the middle, and filled with compressed air, make the capsule expand,  as the concrete component solidification then can empty gas from the cavity, pulled out the capsule. It is easy to be used,  convenient and durable, is soft and can  fold, curly, contraction when it isn't inflate, it have the enough strength to withstand the pressure of concrete when it is inflated, this is incomparable with any traditional template. it is used in reinforced concrete members, including stake, roof, roof board column, beam, building, water conservancy project (shipyards, slipway, dock). Construction practice proves that Inflatable rubber mandrel is simple, not only save materials, and has a shape characteristics, it could be round, oval, rectangle, vaulted, trapezoidal pipeline, etc. Also you can make a straight hole, etc, can make a building structure light, thin wall hollow, change the concrete performance have been used rigid characteristic template situation.

Standard specifications of Ard inflatable  rubber mandrel

1> Diameter (D)   : From 0.3m to 2.2 m.

2>Total Length (TL) : From 6m to28m.

3>Other specification also available upon customer’s request.

Technical parameters of inflatable rubber mandrel:

Cross Section

Accessories of Ard rubber airbag

 ARD rubber airbag

 Application