Self-drilling hollow anchor bolts and accessories Application During the constructions of underground works, it is very common to encounter soft rock, fractured zone and large deformation due to high ground stress. In the case of serious collapsing, extra-long anchor is needed instead of ordinary one. Maxdrill self-drilling anchor embodies drilling, grouting and anchoring as a whole. Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It’s irreplaceable in narrow construction environment.

I. 自进式锚杆 Self-drilling hollow anchor bar Aver.eff. Cross sectional area capacity capacity Anchor plate According to different condition, choose alloy, steel… Bit, custom design is avai

TC cross bit for soft to medium rock Cast cross bit for sand and gravel Hardened cross bit for loose to medium dense conditions with small boulders. Hole diameter（mm）

32MR31051 Cast cross bit for sand and gravel dense ground conditions TC insert bit for soft to medium rock formations 32MR34151 geometry for unconsolidated soil with small boulders Hardened steel bit for loose to medium Hardened arched bit for optimized TC arched bit for optimized geometry for soft to medium rock formations Hardened button bit for unconsolidated rock with boulders TC insert button bit for medium rock formation Hardened cross cut drill bit, suitable for 32MR31151 the majority of applications including narrow bands of soft rock. EXX is the hardest drill bit available, for 32MR31251...

Hole diameter（mm） Hardened cross bit for loose to medium dense conditions with small boulders Hardened arched bit for optimized geometry for unconsolidated soil with small boulders TC arched bit for optimized geometry TC cross bit for soft to medium rock TC arched bit Bit with thread R38N TC cross bit for soft to medium rock formations TC insert bit for soft to medium rock formations Hardened unconsolidated rock with boulde

http://www.max-drilling.com Length（mm） Hole diameter（mm） Remark Hardened cross bit for loose to medium dense conditions with small boulders TC cross bit for soft to medium rock formations unconsolidated rock with boulders

http://www.max-drilling.com Type Hole diameter Remark Hardened drill bit with buttons for medium to dense soil and rock As above but with TC-inserts Button bit with TC-inserts for medium to hard rock formations

Hole diameter