Types Of Rock Bolts MF33 MF40

Product Description

Main technical performance: Initial anchoring force: 3~7 tons; Pipe ring pull-off load: 8~10 tons; Anchor pipe pull-off resistance: 12~13 tons; Corrosion resistance is 20~30% higher than that of A3 steel, which is conducive to long-term use.

Specifications and parameters

Main Specifications: MF43 MF40 MF33

Length (mm): 1200, 1500, 1800, 2000, 2500

Material: Q235, 16Mn（Q345  Q355）, 20 Mnsi.

Technical features

1. the uncooked cloth adopts high-strength alloy strip steel;.
2. Simplest installation.
3. No anchoring agent required.
4. High friction between anchor and rock body;.
5. High shear and tensile strength; 6. Equipped with high-strength pallet, the pallet is subjected to uniform force.
6. The top of the roadway is higher than the size of the anchor rods.

Usage

1. Determine the anchor gap role in accordance to the format requirements, and drill the gap with drilling rig.
2. Blow out the rock powder in the gap with pressurized air.
3. The rod physique set up on the anchor disk, with an have an impact on drill anchor into the gap pipe slit anchor drilling gap diameter endorsed calculation method: rock layer: drilling diameter = (0.9-0.95) x anchor diameter anchor drilling depth: anchor size +100mm drilling deflection price <1% coal layer: drilling diameter = (0.9-1.00) x anchor diameter anchor drilling depth: anchor size +200mm drilling deflection fee <1.5%. Drill deflection <1.5%.