ANTO Hydraulic Water Expansion Anchor Bolt Manufacturers  

Product Description Water Swelling Friction Bolt is made by high strength welded tube folded itself and welded to seal at both end of bolt.   Working principle: When the bolt is used in the hole, the bush with a hole is connected with a chuck of a high-pressure water pump. Start the pump and inject the water into tube, the folded wall of bolt is forced to expand. When the pump reaches a standard pressure, the wall of bolt holds onto the strata and creates a big friction strength to support.Thus, a safety and stable support system is formed. Advantages of Water Swelling Friction Bolt: 1. Simple installation, saving labor cost. 2. Be used in wide variety of ground conditons. 3. With high supporting strength. Product Parameters Item  No. Bolt…