Our company and Changsha Railway Construction Heavy Industry Company jointly developed a rubber gasbag suitable for tunnel lining engineering. It can be combined with advanced lining trolley auxiliary work, which greatly improves the efficiency of lining construction in tunnel engineering. It is easy to operate, saves labor, saves time, and can be used repeatedly.
Our company and Tianjin Municipal Engineering Corporation jointly developed a rubber gasbag applied to the quick prefabricated beam formwork, which replaces the traditional way of using PE to control the hole. The gasbag reaches the specified outer diameter within 1Mpa pressure, and the hole is formed quickly, the hole is uniform, and the bellows is better adhered to the cement, which is quick and convenient to use and can be used repeatedly. Greatly improve the quality and production efficiency of the beam.
Rubber gasbag for lining trolley
| ID | OuterDiameterbefore expansion | Expansion pressure | Max expansion outer diameter | Length | Weight | Connector type |
| 150mm | 166mm | 2.5Mpa | 300mm | 25m | 30kg | Self-sealing joint |
Fast inflatable gasbag for prefabricated beam
| ID | Outer diameter before expansion | Expansion pressure | Max expansion outer diameter | Length | Weight | Connector type |
| 51mm | 70mm | 1.0Mpa | 100mm | 7m | 1.4kg | Self-sealing joint |
| 57mm | 80mm | 1.0Mpa | 110mm | 7m | 2.0kg | Self-sealing joint |
