hollow drill bar

Rock drilling equipment -- Hollow drill steels in bar form ...

Rock drilling equipment -- Hollow drill steels in bar form, hexagonal and round. This standard was last reviewed and confirmed in 2017. Therefore this version ...

Hollow Bar Anchor Installation Equipment - Williams Form

A Coupling Adapter is a machined and case hardened adapter, which is usually located just below the drill hammer and is used to connect the striker bar to the hollow bar.

hollow drill bar -

About KAMY. The company was founded in 2000, the company founder, Mr. Duan Jianping, has been engaged for more than 30 years in development, design and production work.

DYWIDAG Geotechnical Systems DYWI Drill Hollow Bars

DYWIDAG Geotechnical Systems DYWI® Drill Hollow Bars with connecting Elements and Ancho-rages as Load-Bearing Tendons ... analogous to hollow bar thread.

Hollow Drill Steel Bar, Hollow Drill Steel Bar Suppliers and ...

offers 1,064 hollow drill steel bar products. such as free samples, paid samples.

Rock drill steel for top-hammer rock drill rods — Sandvik ...

Drill steel for top-hammer rock drill rods, available in four different steel grades. Sandvik's rock drill steel is supplied as hollow, hot-rolled, round or hexagon bar.

Sinorock® provides specialty self drilling hollow bar solutions

Sinorock® has ISO and CE certificates for all sizes of hollow anchor bar and provides efficient service for you.

Stainless round bar and hollow bar — Sandvik Materials Technology

Stainless round bar and hollow bar, free-cutting steel and hollow drill steel for rock drilling.

SET40 - Hollow Bar By Sinorock

T40 self drilling hollow bar features a hollow center for simultaneous drilling and grouting and a rope thread for connection to standard drill tooling. Manufactured by cold rolling heavy wall steel tubing, this drilling hollow bar forms a standard rope thread profile, which increases the yield strength and producing a durable drill rod.

Hollow Bar Micropiles - Self-Drilling Anchor

Hollow Bar Micropiles are constructed using bespoke hollow, threaded steel bar which is drilled and simultaneously grouted.

SET40 - Hollow Bar By Sinorock

T40 self drilling hollow bar features a hollow center for simultaneous drilling and grouting and a rope thread for connection to standard drill tooling. Manufactured by cold rolling heavy wall steel tubing, this drilling hollow bar forms a standard rope thread profile, which increases the yield strength and producing a durable drill rod.

R32 Self Drilling Hollow Bar - Hollow Bar Anchors By Sinorock

R32 hollow bar anchors consist of hollow bar, drill bit, coupling, packer, plate and nut, combine grouting and drilling together and adapt to several construction situations and different geological conditions.

DYWIDAG Geotechnical Systems DYWI Drill Hollow Bars

DYWIDAG Geotechnical Systems DYWI® Drill Hollow Bars with connecting Elements and Ancho-rages as Load-Bearing Tendons ... analogous to hollow bar thread.

Williams Form Engineering Corp. - Self-Drilling Rock & Soil ...

In general, Williams recommends using the Geo-Drill Injection Anchor System in difficult soils that do not allow for open-hole drilling. Ground conditions featuring large voids or the presence of an artesian water condition are generally not suitable for a drilled and grouted hollow bar.

Hollow Bar Soil Nail Installation - National Driller

The use and installation of hollow bar soil nails in soil-stabilizing applications has been increasing since their introduction to the United States market more than 15 years ago.

Self-Drilling Anchor – IBO, Soil Nail, Micropile

Supplying IBO Self Drilling Anchor, Rock Bolt, Hollow Bar Soil Nail & Micropile. Posting technical articles about mining, tunnelling, foundation reinforcement and hollow bar anchor production.