Contact: Grady wang
Pneumatic rubber mandrel is a kind of cylinder bag that can expand, shrink, used to form concrete component of cavity.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:
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.
4. Can you only make circular shape?
|Diameter (mm)||Pressure (Mpa)|
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 do you package it and should we store it?
In usually, we package it with wooden case when transport 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