R Thread Hollow Anchor rod
Self drilling anchor bolt system is mainly used for slope stabilization, foundation with micro piles and tunneling, it’s also widely used in the railway system, metro project, can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation. The unconsolidated ground condition favor the self drilling anchor bolt technique for fast and simple method of installed compared to the traditional method.
Thread type: R25, R28, R32, R51.
Thread standard: ISO10208, ISO1720, etc.
R-thread Hollow Anchor Rod
How to order:
Types + Length
Drill Bits: Head Design + Diameter + Thread
Coupling Sleeve: Diameter + Length + Thread
Nut: Length + Diameter
Plate: Shape + Dimension
1. How to control quality?
A: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.
2. Fast delivery time:
A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.
3. Competitive price:
A: KINGDRILLING factory can supply you the lowest price due to direct sale to customers without distributor!
4.What is the Application?
Mining, Quarrying, Tunneling, Construction, Geological Exploration, Water-well Drilling, Oilfield & Gas Industries.
5. What is the materials?
Steel is 42CrMo, Alloy is from from ZHUZHOU 601
6.How to choose the suitable head face of the DTH drill bit?
Suitable for all kinds of formation, especially for deep well drilling, perpendicularity of the hole is wonderful.
Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.
Suitable for special hard formation stratum, especially for fracture, crack spacing and complex formation drilling effect is very good, has the good perpendicularity of the borehole.