Self-Drilling Hollow Anchor Bar R51 Drilling Steel

Product Despcription
During the construction of undergroud 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.




Size Weight(kg) Part No. Remark
R51L&R51N Steel cross bit R51/85mm 1.30 51MR31185 Hardened cross bit for loose to medium dense conditions with small boulders
TC cross bit R51/115mm 1.80 51MR312115 TC cross bit for soft to medium rock formations
Steel button bit R51/100mm 1.85 51MR301100 TC insert button bit for unconsolidated rock with boulders
R51/115mm 2.00 51MR301115
TC Button bit R51/100mm 1.85 51MR302100 TC insert button bit for medium rock formations


Length(mm) Type Part No.
Bar R51 1 m long R51L
R51N 51MR01
2 m long R51L
R51N 51MR02
3 m long R51L
R51N 51MR03
4 m long R51L
R51N 51MR04
6 m long R51L
R51N 51MR06


Dimension(mm) Length(mm) Weight(kg) Part No.
Coupler R51 63 200 1.90 51MR2063

Key size(mm) Length(mm) Weight(kg) Part No.
Nut R51 75 70 1.55 51MR7075

Key size(mm) Length(mm) Weight(kg) Part No.
Spherical nut R51 75 70 1.73 51MR7075S

Dimension(mm) Hole Diameter(mm) Weight(kg) Part No.
Anchor Plate R51 200*200*12 52.5 3.6 51MR1252