1.Hollow grouting anchor bolt 2.Has good rock anchoring force 3.Used for support of underground project. 4.High strength
Common hollow grouting anchour bolt is made of seamless steel pipe with thick wall. It consists of five parts, namely,
anchor rod, anchor head,grouting stopper, plate and nut. The hollow bar has international wave-shape thread. It is easy to be installed with plate and nut.
With the high-strength coupling sleeve, any length could be available. It integrates anchoring and grouting as a whole. It functions as a grouting pipe while grouting, without the need
of pulling out after finishing grouting. The anchors can be positioned in the middle of the hole very well with various
fittings.Furthermore, it is sample and fast for installation.
Application Field:
1.Tunnel presupport
2.Roof support in underground work
3.Slope and roaded reinforcement
Rock Anchor Name | Rock Anchor Size | Tensile Strength (kN) | Outside Diameter/ Tube Thickness (mm) | Weight (kg) | Threaded Orientation | Rock Rod Normal Length (m) | Drilling Diameter (mm) | Remark |
Hollow Grouting Rock Anchor | R25A | 180 | 25/5 | 2.30 | Left | 2.5/3/3.5/4/4.5/ 5/5.5/ 6/8 | 42 | Normal |
R27A | 240 | 27/6 | 2.90 | 45 | ||||
R32A | 290 | 32/6 | 3.40 | 50 | ||||
R38A | 440 | 38/8 | 5.9 | 75 | ||||
R51A | 640 | 51/8 | 8.3 | 110 | ||||
SD27 | 250 | 27/6 | 3.10 | 45 | ||||
SD32 | 300 | 32/7 | 3.60 | 50 | ||||
SD38 | 460 | 38/8 | 5.90 | 75 | ||||
SD51 | 650 | 51/8 | 8.50 | 110 |
hollow grouting anchor bolt supplier
