Kenya Rubber Balloons for Culvert Making (450mm, 600mm, 900mm,)

Inflatable core mold for culvert formwork
Inflatable culvert rubber mandrel, is also called pneumatic rubber airbag, rubber air bladder, inflatable rubber balloon, rubber core mold, mandrel etc.It is used for concrete pre-casting formwork projects in culvert bridge construction.Material
The rubber mandrel is formed by three layers:
Inner lay is high srength synthetic polymer fabric, to withstand force skeleton and prevent the mandrel
from unlimited expansion.outside layers are vulcanized synthetic rubber.It is comprised by rubber mandrel, athree-way valve and a0.1mpa pressure gage.Type
It could be round, rectangle, octagon, hexagon, trapezoidal pipeline, etc.Product show
Technical parameters Rubber core moldDia(mm)Pressure (MPa)800.121200.101500.082000.072500.054000.045000.0356000.037000.0278000.0269000.02522000.005
Feature
1-Easy operation, save work, save time, save material.
2-Have good ageing resistance performance and long service life this product use synthetic rubber, natural rubber and strengthen layer vulcanize. Has very good resistance to bulge, flexibility and elasticity, so can satisfy all sorts of work in the conditions of use.
3- Widely applicable temperature ,within the scope 10 °C ~+90 °C of the material without change.
4- For building light-duty construction provides favorable conditions to stress hollow concrete component, due to the rubber mandrel, the weight than use stress solid component light 20%, so it can reducing the weight of the upper structure of building, can make the pile foundation short, increase span,make the construction become simple and safety.
5- Construction technology is simple, safe, health, use it only need afew simple tools, without special process. only put the mandrel into negative reinforcement cage, inflate air to achieve work pressure, then pouring the concrete. When the concrete freezing, put gas out mandrel ,in thus complete the product component forming, and it not pollute the environment.
Our work.Packing
Woven bags with wooden pallet,container or according to your request.Our workshopContact
Nancy Lee
Mobile:+86 18931803806