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Rubber Shutter Balloon for Culvert Making (made in China)

Basic Info

Model No.:  Diameter range 150mm-2200mm

Product Description

  • Model NO.: Diameter range 150mm-2200mm
  • Size: 50-2400mm
  • Specification: As Drawing Requests
  • HS Code: 40169500
  • Usage: Concrete Pipe Making
  • Trademark: Dacheng
  • Origin: China
Contact information
Sales Manager: Ms Jenny Lee
Mobile Phone: +86-18678456530
Tel: 86-318-8538202
Fax: 86-0318-2210707
Website: Www. Zqdcrubber. COM
Companies: Zaoqiang Dacheng Rubber Co., Ltd. 


Inflatable rubber mandrel is a kind of cylinder bag that can expand, shrink, used to form concrete
Component of cavity. It is easy to be used, economic, and durable. It can not only save materials, but also
Has the shape characteristics, as it could be round, rectangle, octagon, hexagon, trapezoidal pipeline, etc. 


Items Index
Terence of Thickness, mm 3.2±0.2
Hardness(Shore A) 65±5
Adhesive tension of rubber and fabric, N/25mm ≥8
Tensile strength, M PA ≥12
Elongation at break, % ≥350
300% Stretch set length, M PA 6
Stretch for deformation ratio ≤20 %(Prevent distortion)
Suitable temperature, °C -10~80
Appearance No cracks, no bubbles on the surface; 
The length of impurities trace is not more than 3mm; 
The depth is not more than 1.5mm; 
The quantity of the trace is not more than one; 
The deformation is not more than 2mm. 


1. Inflatable core mold design scientific and reasonable
2. Inflatable core mold has good aging resistance performance, long life characteristics
3. Inflatable core mold temperature range In the range of -10 Degree ~ +90 Degree, Inflatable core
Mold material will not change
4. Inflatable core mold provides the necessary condition for the bridge, construction of light
5. Inflatable core mold construction technique is simple, safe, health. When Inflatable core mold in
Application, using a few of simple tools, no need of special process. 

As long as Inflatable core mold into a steel cage, inflating pressure of up to the working pressure
(according to the pressure gauge and instructions for quasi), namely the pouring of concrete, the initial
Set of concrete, the Inflatable core mold bleed out, can complete the molding product components, and
Inflatable core mold does not pollute the environment. 


It is usually used in reinforced concrete members, bridge construction, irrigation works and tunnels, such
As stake, roof, roof board column, beam, building, water conservancy project(shipyards, slipway, dock). 


Q: Which specification can you produce? 
A: Our factory is a professional manufacture of rubber balloon with rich experience. Our produced
Specification is as follows: 
Diameter: 150mm-2200mm
Length: 1m-28m
Note: The above is our standard specification and we can also customize it as client's special

Q: Can What kind of shape can you make? 
A: We can make more than ten shapes including cylinder, round, rectangle, octagon, hexagon, trapezoidal
Pipeline, etc, or according your requirements and drawings. 

Contact us if you need more details on Rubber Shutter Balloon for Culvert Making (made in China). We are ready to answer your questions on packaging, logistics, certification or any other aspects about China Pipe Plug with Rubber Bag、China Rubber Pipe Plug. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Culvert Airbags

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