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Quick Details

  • Place of Origin: Hebei, China (Mainland)
  • Brand Name: DaCheng
  • material: rubber
  • hardness: 65±5 shore A
  • diameter: 0.2m-3m
  • total length: 1m-28m
  • shape: various

Packaging & Delivery

Packaging Details wooden case or as client's required
Delivery Time within 7 days

Contact Person: Grady Wang

 

Mobile: 86-13253291538

 

Skype: constructionrubber

 

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.

 

1. What's the material of culvert making balloon?

 

Our culvert making balloon is mainly made of rubber and fiber reinforced layer (canvas) through vulcanized process.

 

2. Which specification can you produce?

 

Our factory is a professional manufacture of rubber balloon with rich experience. Our produced specification is as follows:

 

Diameter: 80mm-2200mm

 

Length: 1m-28m

 

Note: The above is our standard specification and we can also customize it as client's special requirements.

 

 

3. How to control the pressure when we inflate it?

 

Please reference below table and you can find that the pressure is smaller and smaller with the increase of the diameter.

 

Diameter (mm)

Pressure (Mpa)

80

0.12

120

0.10

150

0.08

200

0.07

250

0.05

400

0.04

500

0.035

600

0.03

700

0.027

800

0.026

900

0.025

......

......

2200

0.005

 

 

4. Do you only make circular shape?

 

No, we can make ten more shapes, please reference below shape drawing.

 

 

5. Where can it be used?

 

It can be used for construction project (culvert, pile, roof truss, girder) and water conservancy project (shipyard, slipway, wharf).

 

6. How should we store it?

 

A. It should be clean after being used and stored in aeration-drying room to avoid direct sunlight and damp environment.

 

B. No touch release agent and other organic solvent.

 

7. Why choose us?

 

A. Good quality and competitive price

 

B. Quality guarantee: 1 years

 

C. Long working life: 10 years

 

D. Good reputation and credit

 

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China (Mainland) | Manufacturer, Trading Company
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