Swellex MN12
- -Swellex MN12 is a friction bolt made from pressed steel tubing.
- -Swellex MN12 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.
Swellex MN12
Swellex bolts, also known as hydraulic expansion anchor bolts, are double-layer tubular bolts made from seamless steel pipes with an outer diameter larger than the anchor hole diameter. After the steel pipe is placed into the anchor bolt hole, high-pressure water is used to make it expand. During the expansion process, the Swellex bolt deforms, and the wall of the anchor bolt pipe completely adheres to the irregular hole wall of the anchor bolt hole. The frictional force and self-locking force generated along the entire length of the anchor bolt thereby reinforce the rock mass. It has the advantages of simple construction, full-length anchoring and strong anchoring force.
Swellex MN12 Key Features
Installation is effortless, requiring no resin or grout.
Stable despite vibrations and varying rock strengths.
Extensive expansion range ensures even load distribution.
Immediate structural support upon installation.
Two designs of Swellex MN12
> Swellex MN12
> 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 | Inflation Pressure(MPa) |
| 28mm | 2 | 41 | 32-39 | 120 | 20 | 2kg/m | 30 |
>Swellex MN12 Accessories
> Swellex MN12 Length
Length (m) | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | 2.7 | 3.0 |
Weight (kg) | 2.5 | 3.1 | 3.7 | 4.3 | 4.9 | 5.5 | 6.1 |
> Surface: Black / Plastic coated / Thermal Diffused or as requested.
