Hydrabolts
- -The Hydrabolts is a friction bolt made from pressed steel tubing.
- -Hydrabolts expand and unfolds in the rock hole through the pressure of water.
- -The installation is convenient and fast and can provide uniform support for the rock strata.
- -It is suitable for rock strata under various conditions.
Hydrabolts Introduction
Hydrabolts are made of seamless steel bars with an outer diameter larger than the drilled diameter. No nut equipment is required. They are double-layer special-shaped tubular rods. The components include end sleeves, special-shaped pipe rods, retaining rings, water injection pipes, plates, etc. Put the steel pipe into the anchor hole and use high-pressure water to expand it. During the expansion process, the Hydrabolts undergoes permanent deformation. The wall of the anchor pipe completely fits the irregular wall of the anchor hole. The entire length of the anchor creates friction and self-locking forces, thereby strengthening the rock mass.
Hydrabolts Key Features
Installation is rapid and effortless
No resin or grout is necessary
Remains stable despite blasting vibrations and varying rock strengths
Boasts an extensive expansion range, ensuring even load distribution along the hole
Delivers immediate structural support
Two designs of Hydrabolts
> Hydrabolts
> New improved Bolt with non-return valve which limits "spring-back" giving increased pull-out resistance and keeps high strength expansion.
| Item Description | Tube Thickness(mm) | Inflated Bolt Dia (mm) | Drill Hole Dia (mm) | Minimum UTS (mm) | Elongation% | Mass/Meter |
| 27mm | 2 | 41 | 35-38 | 120 | 10 | 2kg/m |
| 27mm | 2 | 54 | 45-51 | 160 | 10 | 2.8kg/m |
| 37mm | 3 | 54 | 45-51 | 240 | 10 | 3.75kg/m |
> Hydrabolts Accessories
> Hydrabolts Length
Length: 0.9m to 3.0m or as requested.
> Surface: Black / Plastic coated / Thermal Diffused or as requested.
