For Jiaxing hollow beam mandrel Huzhou hollow beam mandrel, inflatable mandrel called the bridge inflatable mandrel, rubber inflatable mandrel is an expandable, contraction of the cylindrical bag inflatable mandrel, made of rubber and fiber reinforced layer vulcanized made , having a high tensile strength, elasticity and airtightness, a cavity for forming concrete elements, in the manufacture of hollow members, put it in the middle, and filled with compressed air, inflated after sufficient strength to withstand the pressure of concrete, can replace the original wooden mold, bamboo mold, steel, open the valve that shrink capsules and capsules can be extracted from the cavity. It is easy to use, economical and durable, can be repeatedly used, not soft, inflatable can shrink any folded, curled, for reinforced concrete pumping holes, including piles, roof trusses, roof columns, beams, construction, hydraulic engineering (dock , berth, quay). Construction Practice has proved that the capsule pumping holes process equipment is simple, not only to save material, and has the shape changing characteristics, can be as round, oval, rectangular, arched, octagonal, trapezoidal and other pipeline. You can also become a straight hole, variable cut faces and other structures can become light, thin-walled hollow, concrete properties has been used to change the status of a rigid template to reduce costs and speed up the construction progress of concrete products supporting products. Hebei Hengshui military bridge Rubber Co., Ltd. specializes raw processing of various types and specifications of balloon mold, hollow bridge. inflatable mandrel and shaped balloon mold, can be customized according to the demand side, drawings, company a lot of processing, low price and good quality. 24 hour free technical advice, please contact us, we are happy to serve you. Bridge mandrel stable performance, easy to use, the bridge mandrel is industrial supplies, its use is very wide pan-Wai. Here are just one of them: the bridge mandrel, because different regions or different areas of use and the name, such as: inflatable mandrel, balloon mold, inflatable mandrel, bridges inflatable mandrel, etc., inflatable core model point is low cost, easy to use, easy to transport, suitable for storage. Octagonal inflatable mandrel., Octagonal inflatable mandrel is mainly used in bridge plate into the hole, tunnel into the hole, ditch into the hole, empty board into the hole mold, octagonal inflatable mandrel. Into a round, square, oval, octagonal core inflation mold., octagonal inflatable mandrel. length of 8 m, 10 m, 13 m, 16 m, 20 m, etc.