Hollow bolt, bolt grouting, hollow grouting anchor, 
 Hollow grouting anchor rod for the length of its international standard waveform thread, together with the anchor head, plate, nut, only the pulp plug, and a special rapid grouting joints. 
 Hollow grouting anchor and anchor functions into one, and according to project needs and then cut any length, to facilitate construction. Grouting anchor bolts through the bottom of the orifice back from the pulp to make the full grouting, to better fill the cracks, rock and soil consolidation, to achieve improved high-pressure rock grouting, groundwater barrier, and can be easily impose stress, and prestressed. After the injection method than the first anchor and additional grouting easier and better ensure the quality of grouting and anchoring 
 Hollow grouting anchor Applications: hollow grouting anchor in tunnel construction, Slope, Pit Wall, mining and other aspects of geotechnical engineering in the successful application of Anchorage, has achieved good economic results. 
 Hollow grouting anchor main technical performance parameters 
 High-strength, light hollow grouting anchor technical performance parameters as follows, if the user has special requirements, our company can be redesigned to be met: 
 Specifications ZK25 ZK27 ZK28 ZK32 ZK38 other custom specifications 
 Diameter (mm) ￠ 25 ￠ 27 ￠ 28 ￠ 32 ￠ 38 
 Tensile strength (Kn) F ≥ 180 F ≥ 200 F ≥ 200 F ≥ 220 F ≥ 350 
 Tooth height (mm) 1.5 ± 0.1 
 Pitch (mm) 12.7 ± 0.1 
 Thread direction L 
 Standard length 2.0 3.0 3.5 4.0 4.5 (according to your requirements) 
 Note tensile strength and length can be produced according to customer design requirements 
 Drill: B19 drill, B19 anchor, B22 drill pipe, B22 air drill, drill to help anchor, coal drill, twist drill rod, hexagonal drill pipe, drill imitation of the British, bolt, drill pipe, left rotating bolt, right-handed bolt, glass, steel bolts, etc., hollow bolts, grouting anchor, hollow grouting anchor, self-feeding hollow grouting anchor, self-feeding drill pipe, drill pipe self-drilling, FRP bolts, pipe threaded slotted bolt so strong and so resin bolt 
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 Fax: 0537--2530678 
 Mobile: 15069731211 
 QQ: 1399893937 
 Manager: Zhang Song 
 Website: www.bafangjixie.com 
 E-mail: 1399893937@qq.com