SupAnchor tunneling construction high quality SDA hollow drilling standard size rock anchor mine roof rock bolt low price

Specifications 1.standard size anchor bolt low price

2.Common grouting

3. Stainless steel anchor bar

4.kinds of diameter

5.R & T thread

Specifications standard size anchor boltlow price  
High tolerance to variation in bore hole
High deformability to accommodate ground movements WE CAN SUPPLY SO MANY SIZE OF THE BOLTS AND HAVE EXPORTD THE BOLTS TO AMERICA,EUROPEAN, MIDDLE EAST, SOUTH ASIA, AFRICA AND SO ON WITH THE BEST QUALITY. WE HAVE HIGH OUTPUT SO WE CAN SUPPLY THE PROMPT DELIVERY.                               coal mine roof bolt  The SupAnchor steel self-drilling anchor bolt is a unique anchoring system and is today’s answer to the increasing demands of the tunnelling industry and ground engineering for safer and faster production. The system provides advantages for all areas of its applications, where boreholes would require the time consuming drilling with casing systems in unconsolidated or cohesive soil.   Features and Advantages • Fits SupAnchor standard Boomer, ROC and Mustang rigs. • Particulary suitable for difficult ground conditions. • A high rate of installation since drilling, placing and grouting can be performed in one single operation. • Self drilling system eliminates the requirement for a cased borehole. • Installation with simultaneous drilling and grouting possible. • Easy installation in all directions, also upwards. • Suitable for working in limited space, height and in areas of difficult access. • Simple post grouting system.• Hot-dipped galvanizing for corrosion protection      Applications Tunnelling Ground engineering • Radial bolting • Slope stabilization • Forepoling • Micro injection pile • Face stabilization • Temporary support anchor • Portal preparation • Soil nailing   www.supanchor.com