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-The Ordinary Expansion Bolt Swellex Type is a friction bolt made from pressed steel tubing.
-Ordinary Expansion Bolt Swellex Type expands 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.
Ordinary Expansion Bolt Swellex Type 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 Ordinary Expansion Bolt Swellex Type
> Ordinary Expansion Bolt Swellex Type
> 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 |
> Ordinary Expansion Bolt Swellex Type Accessories
> Ordinary Expansion Bolt Swellex Type Length
Length: 0.9m to 3.0m or as requested.
> Surface: Black / Plastic coated / Thermal Diffused or as requested.
