Since the import / drilling hollow grouting anchor, hollow anchor bolt grouting 
 First, the product structure 
 Self-drilling hollow anchor structure composed of six parts of the hollow drill pipe, drill bits, only the pulp plug, connector, plate, nut. The drill bit wear-resistant alloy steel cast, and set the slurry out of the hole. Drill a "font" 10 "font," cone "type and other types of aquifers, different types of hollow bolt from high tensile strength alloy steel seamless steel pipe manufacturing into a connector, spacer, gaskets, nuts are alloy steel cast, intervals can also be used plastics 
 Second, the product features applications 
 Is a hollow bolt, self-drilling hollow anchor itself doubles as a drill pipe and grouting pipe. Before grouting may be for blowing dust tube, which excludes the dust formed by drilling, grouting slurry emitted from the drill bit through the hollow bolt, fill bolt drilling and formation of cracks around the bolt and the surrounding soil solidification into one to form a steel concrete pillars, play the role of reinforcement. The drill bit the size to control the size of the drill, general drilling size is about 2-3 times the bolt diameter. It is a set of drilling, grouting, anchoring, and other new high-tech multi-functional support products. Flexible rod length, plus access extended features, applies not only to the railways, tunnels, mines, water control, slope, dam, bridge base, Jianghai Lake river, high-rise building foundation and building reinforcement projects; more suitable for foundation the governance of the sink hole collapse, cracks, collapses, landslides and other geological disasters. The construction is very convenient in the narrow environment, with the effect of other anchoring material can not be replaced. 
 Third, product specifications 
 Since the import / drilling hollow grouting anchor, hollow anchor bolt grouting 
 Product Specifications Model: 
 Specifications / Project OD mm ID mm limit load KN yield load of the KN the length of the rotary (L / R) m 
 25/17 25 17 170 1502 0 # left in accordance with user needs 
 To set the length 
 6m 4m 3m, 
 Can be different length 
 25/17251720018040 # left 
 25/17 25 17 200 180 left 
 28/14281430027035 # left 
 30/18301820318020 # left 
 30 / 163,016,220,180 left 
 30 / 143,014,260,220 left 
 30/11 30 11 320 260 left 
 32/20 32 20 217 1802 0 # left 
 38/17 38 17 500 420 left 
 40 / 164,016,660,525 left 
 52/26 52 26 929 730 left