43 × 2 m pipe seam bolt, 40 × 1.5 m seam pipe anchor 

 Pipe seam pipe seam anchor bolt slotted bolt rock friction stability 
 Main Specifications: MF45 MF43 MF40 MF39 MF33 
 Length: 1200MM-3600MM 

 Pipe seam anchor is an anchor full-length, take the initiative to reinforce the new anchor of the surrounding rock, it is three-dimensional part of a longitudinal slotted high strength steel pipe, when installed in smaller than the diameter drilling can be immediately exert radial pressure within the full length of the hole wall and prevent the friction of the surrounding rock fell and bolt tray pallet load bearing capacity, so that the surrounding rock in the three-stress state and to achieve great rock. 
 Pipe seam bolt in the case of blasting vibration surrounding rock anchor shift, post-anchoring force increased significantly, when the surrounding rock occurrence of significant displacement, the bolt does not lose its support resistance, it rose shell anchor There are better features. 
 The main technical performance 
 (1) the initial anchoring force: 3 to 7 tons; 
 (2) tube ring pull off load: 8 to 10 tons; 
 (3) anchor tube tensile breaking capacity: 12 to 13 tons; 
 (4) The corrosion resistance of 20 ~ 30% higher than the A3 steel, which will help long-term use. 
 Bolt known as the "rock friction stabilizer slit tube, seam tube bolt dedicated strong support supplies, underground culvert roof and other projects supporting the use of advanced materials, manufacturing process is simple, easy to use, underground anchor and shotcreting, anchoring and strong, tensile strength, there is a strong expansion force, so that the entire roof will become one flesh. 
 Meaning and the Size of the slit tube bolt Product Type: 
 The slit tube bolt Product Type MF diameter (mm) / Length (mm), where M means "anchor". F said slit tube. Such as MF43/1600 slit tube bolt, its outer diameter is 43 mm, a length of 1600mm. 
 Technical requirements 
 1) The slit tube bolt surface should be smooth, without serious injury, rust. Welds shall be no cracks, no porosity slag not allowed to burn through the wall. The tray should be able to move freely on the rod. Block-ring interface and pipe vents mutual dislocation 170o-190o appropriate. 
 2) retaining ring weld pull out force ≥ 80kN tensile strength of the rod limit ≥ 110kN initial bolting ≥ 25kN / m, the tray carrying capacity ≥ 65kN. 
 3, the product 
 Using a pneumatic drill and drill bolt holes in the roof, the tray into the anchor rod, and then the wind hammer the rod into the bolt hole, so that the tray and roof Bangdai Post real. 
 In addition to the reference table, using bolt, the choice of hole diameter should be in accordance with the specific conditions of the rock, make the selection in press with the GBJ86 standard provisions. 
 The company's main 
 Supporting categories: slotted anchor rock friction stabilizer the MF43 seam pipe bolt the MF40 pipe seam bolt the MF33 tube slotted bolt (slotted bolt, seam tube bolt) Φ30, Φ33, Φ40, Φ43 tray mesh 
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