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  • Mechanical Rock Bolts - DSI Underground Canada

    A29 (gr75 for USA) 5/8' Bolt. 5/8' Bolt. 3/4' Bolt. 7/8' Bolt. Yield Strength, min. 15,600 lbs. (69 kN) 17,000 lbs.

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  • DYWIDAG Rock Bolts - DCP-Rock Bolt - DSI Canada

    The Rock Bolt for permanent Slope Stabilizations, Tunnels and Caverns (with angle compensation) High tensile and mild steel – DYWIDAG THREADBAR ®. 1. Ductile Expansion Shell 200 kN Capacity. 2.

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  • DYWIDAG Rock Bolts - DSI EMEA

    Expansion Shell Anchors Rock Bolts with Expansion Shell. Extremely fast and easy installation. Immediate load bearing capacity in the borehole. Galvanized version available. Retensionable. Various angle compensation designs available.

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  • Rock Bolt - Self Drilling Anchor Latest Price ...

    Anchor Rock Bolt Sda R32 ₹ 295 Meter

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  • Dynamic OMEGA-BOLT® - DSI Underground Canada

    14 行 · The Dynamic OMEGA-BOLT ® has been developed to provide safe, effective, and fast rock …

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  • Rock Bolts - Roof Bolts - Resin Anchoring - DSI ...

    DSI Underground is Australia’s largest manufacturer & supplier of specialist strata reinforcement & support products to the underground coal & metalliferous mining sectors. DSI Underground is also a major exporter of these products to the Asia-Pacific Region. DSI Underground has successfully established its Mining Business Sector.

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  • High Strength Bar - DSI Underground Australia - Rock

    Bolt fittings, such as nuts, anti-friction washers and domed balls, are supplied fitted to rock bolts in the configuration requested. Notes DSI Underground Mining Products Division is Quality Assured to ISO 9001:2015, Registration QMS 41328.

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  • DYWIDAG GRP Anchors and Rock Bolts

    2013-9-17 · DSI Underground Systems Inc. 9786 S Prosperity Road West Jordan, UT 84081, USA Phone +1-801-973 7169 Fax +1-801-973 7172 E-mail [email protected] www.dsiunderground.com South America DSI Chile Industrial Ltda. Las Encinas #1387, Valle Grande Lampa, Santiago de Chile, Chile Phone +56-2-596 96 20 Fax +56-2-596 96 69

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  • Rock Bolts - DYWIDAG-Systems International UK

    Rock Bolts. Rock Bolts are generally formed from solid threadbar systems, i.e. bar, nut, couplers and plates. The steel threadbar is used to bond unstable rock to stable sections, beyond the face, and requires both capacity for tensile and shear loads.

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  • Rock Bolt Properties - DSI USA

    DYWIDAG THREADBAR Properties and Hardware Dimensions. 27th March 2018. 265.50 KB Download.

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  • Rebar Rockbolts - DSI Underground Canada

    DCP – Rock Bolt Features. Superior performance — On-site assembly to any length. Double Corrosion Protection (DCP) consisting of corrugated plastic sheathing and cement grout. Stressable with hydraulic jack immediately after installation. Hydraulic jack sitting on shoulder of hemispherical seat. Direct load transfer from anchor head to ...

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  • DYWIDAG Rock Bolts - DCP-Rock Bolt - DSI Canada

    DSI Underground Rock Bolt Couplings are manufactured from higher tensile material and will equal the tensile strength of the bolts if installed correctly. Corrosion protection may be provided by hot dip galvanizing or zinc plated to AS 1789-1984. DSI Underground Mining Products Division is Quality Assured to ISO 9001:2015, Registration QMS 41328.

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  • Rock Bolt Coupling - DSI Underground Australia -

    Expansion Shell Anchors Rock Bolts with Expansion Shell. Extremely fast and easy installation. Immediate load bearing capacity in the borehole. Galvanized version available. Retensionable. Various angle compensation designs available.

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  • DYWIDAG Rock Bolts - DSI EMEA

    Notes. Only DSI Underground rock bolt components should be used to enable the optimum performance of the system to be obtained. DSI Underground Mining Products Division is Quality Assured to ISO 9001:2015, Registration QMS 41328.

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  • Eye Bolt - 20mm - DSI Underground Australia

    0.60. Key Features. DSI Underground expansion shells hold in any rock strata which is sufficiently competent to provide an adequate anchorage. They are designed to anchor in soft ground or hard rock. In good strata, the anchorage exceeds the ultimate strength of the steel bolt. All expansion shells require a competent strata in the anchor zone.

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  • Expansion Shell ASES - DSI Underground Australia -

    Rock Bolts. Rock Bolts are generally formed from solid threadbar systems, i.e. bar, nut, couplers and plates. The steel threadbar is used to bond unstable rock to stable sections, beyond the face, and requires both capacity for tensile and shear loads.

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  • Rock Bolts - DYWIDAG-Systems International UK

    2019-5-29 · Rebar Bolts (SN-Anchors) Field-proven bolting system. Effective and standardized installation. Embedding of the tension member in grout ensures optimal bond strength. Low sensitivity concerning the actual diameter of the borehole. ALWAGRIP special rib geometry for optimized bond strength available on request.

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  • THREADBAR and Rebar Bolts (SN-Anchors) - DSI

    Resin anchored rock bolts are installed in all types of rock or concrete. Track drills, tire mounted drills, jacklegs or stoppers may be used to bore the hole and install the DYWIDAG Bolt. DYWIDAG Resin Anchors are used where expansion shells are inappropriate. The resin anchorage length is easily adjusted to fit the varying rock conditions.

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  • System Description - DSI USA

    2020-2-29 · anchors and tensioning procedures for rock bolts are detailed in this publication. Failure to follow approved practices, may result in failure. 3. The applied safety factor for a product will depend on the degree of hazard or risk involved in the product application. This safety factor is governed by national codes, local codes

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  • DYWIDAG Rock Bolts - DSI Middle East

    Expansion Shell Anchors Rock Bolts with Expansion Shell. Extremely fast and easy installation. Immediate load bearing capacity in the borehole. Galvanized version available. Retensionable. Various angle compensation designs available.

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  • Mining | rocbolt

    Forged Head Replacement Bolts TDS Mineral Bond LV Mineral Bond LV _ Component B Mineral Bond LV _ Component A Self-Drilling Hollow Bar Anchor System DSI Pump Set - Multi Pump. Cable Anchors. CableLok Bolt ... Accessories. Accessories for Rock and Roof Bolts ...

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  • Rock Bolt Properties - DSI Canada

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  • Anchor Design - DSI Canada

    Anchor Design. DYWIDAG THREADBAR ® reinforcing steel is intended for use in relatively low strength rock bolt and rock dowel applications. DYWIDAG THREADBAR ® prestressing steel is intended for use in high strength application to permit the maximum design load in each borehole. The use of prestressing steel may allow a reduction in the number of bolts in the pattern and thus, it usually ...

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  • DCP Bolt, 310 kN - DSI Civil

    Drill 43-45mm hole diameters. The drill hole length must be longer than the bolt by approx. 50mm. Domed washer plate is fitted to the bolt. The bolt is inserted into the hole. After placing the bolt in the hole to its full length, the bolt is then rotated to set the expansion shell to the required tension. Attach grouting adaptor to anchorage.

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  • Self Drilling Rock Bolts

    2010-6-25 · Self Drilling Rock Bolts ROCK BOLTING RODS RBR32-2000 2000= Length 32 =R32 thread RBR=Rock Bolting Rods Parameter Rope thread R28 R32 O.D. mm 28 32 I.D. mm 16 18.5 Cross-sec. Area mm2 390 471 Material 45 40Cr 40Mn2 45 40Cr 40Mn2 Ultimate Load KN 210 Min. 245Min. 270Min. 260Min 300Min 340Min Yield Load KN 160Min. 185Min. 210Min. 190Min.

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  • Threadbar anchors - DSI Civil

    2019-4-30 · Rock Anchors are post-tensioned tendons installed in drilled holes for which at least the entire bond length is located in rock. The anchor force is transmitted to the rock by bond between the grout body and the rock. Rock anchors can remain unbonded in the free stressing length allowing the anchor to be checked and re-tensioned

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  • DYWIDAG Threadbar Anchors - DSI Civil

    DYWIDAG Bar Anchors. DYWIDAG Threadbar Anchors are an actively tensioned ground anchor system and correspond to DIN 4125 and EN 1537 regulations. Due to the active tensioning, anticipated deformations of the system and deformations at the civil engineering measure are minimized or entirely eliminated. This applies both to temporary structures ...

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  • Practical Rock Engineering Chapter 14 Rockbolts and Cables

    2018-9-21 · installation. For short term applications the bolts are generally left ungrouted. For more permanent applications or in rock in which corrosive groundwater is present, the space between the bolt and the rock can be filled with cement or resin grout. Dowels or anchor bars generally consist of deformed steel bars which are grouted into the rock.

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  • JENNMAR

    From bolts and beams, to channels and trusses, to resin and rebar, JENNMAR is proud to manufacture products that make Coal & Hard Rock Mining, Tunneling and Civil Construction safer and more efficient. View Full Product Catalog. Coal Mining. Ground Support products for the coal mining industry. We offer customized and reliable products.

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  • GRP Bolts - DSI Underground Austria

    2019-5-29 · Fields of application of GRP bolts range from cuttable bolts for mechanical excavations to injection lances or forepoling. DSI Underground provides a diversified portfolio of GRP systems for various Underground applications which is completed by longtime experience in the production and application of GRP bolts.

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  • OMEGA-BOLT® Expandable Friction Bolts - DSI

    Basic Concept The main application of the OMEGA-BOLT ® expandable friction bolt is temporary rock reinforcement for Underground applications. Bonding forces between the friction bolt and the ground are caused by form closure (mechanical interlocking) and friction transfer between the borehole wall and the bolt, which is expanded by hydraulic pressure.

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  • Anchor Installation - DSI USA

    Spin bar with drill tool at about 100 rpm. Advance THREADBAR ® through cartridges while spinning. Spin for 30 to 60 seconds after reaching the bottom of the hole. Total spinning time should not exceed gel time. Mount bearing plate and secure plate with anchor nut. Wedge washers are required when plate is not perpendicular to bolt.

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  • Swellex Rock Bolting System | Rock Reinforcement |

    2021-7-5 · Rock bolts. Since its introduction 30 years ago the Swellex expandable rock-bolting system has gained wide recognition in the mining and tunneling industry. This unique rock bolt consists of a welded tube folded in upon itself, sealed at one end. It is re-expanded using a high pressure water flow provided by a special pump and adapter.

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  • Corroded Mining Elements replaced with ... - DSI

    Corroded Mining Elements replaced with Double Corrosion Protected DSI Rock Bolts. The Cannington Mine, which is 100% owned by BHP Billiton, is located in northwest Queensland, about 250 km southeast of Mount Isa, Australia, and is the largest and lowest cost producer of silver and lead in the world.

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  • EMEA & CIS

    Tyta Resin Rock Bolts. Rock bolt assemblies with extended-length coarse thread, for multiple re-tightening after installation with resin capsules. Assemblies comprise the stud, matching nut and bearing plate washer, in a variety of bolt diameters and lengths. Rock bolt assemblies are packaged as complete, ready-to install units.

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  • Atlas Copco Rock Reinforcement Products Product

    2017-11-14 · line rock bolts, which are manufactured from a special type of steel. Another development is the Swellex Premium line of rock bolts, for use where high yield load and stiffness are expected from the reinforce-ment system. When Atlas Copco bought MAI in 2001, the rock reinforcement center moved to Feistritz/Drau, Austria.

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  • The Mandacarú Tunnel in Bahia: DYWIDAG Rock Bolts

    DSI Underground Brasil supported the owner and consulting engineers during the selection of a rock bolt system suitable for use in these conditions. To stabilize the tunnel excavation, DSI produced the necessary DYWIDAG THREADBAR Rock Bolts as well as resin cartridges and supplied them to the jobsite just-in-time.

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  • Underground Mining Solutions - DSI Underground

    DSI Underground acquires 100% of the training and VR company Edvirt. On 26 February 2021, DSI Underground SMART, a wholly owned subsidiary of DSI Underground completed the acquisition of the virtual reality training specialist Edvirt.

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  • Bars - DSI Canada

    The original THREADBAR ® is hot-rolled, high strength steel with two flat sides in the thread pattern that allow gripping and turning of the bars with a crescent wrench. The flat sides facilitate self-cleaning with each stripping operation. DYWIDAG THREADBAR ® and …

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  • cable bolt underground mines - berkol.co.za

    Cable Bolt Plain DSI Underground Australia. Rock Bolts – Cable Bolts Cable Bolt Plain ... Only DSI Underground rock bolt components should be used to enable the optimum performance of the bolt system to be obtained. DSI Underground Mining Products Division is Quality Assured to ISO 9001:2015, Registration QMS 41328. Get Price; Installation ...

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  • High Strength Mining Underground Support

    Mechanical Rock Bolts Dsi Underground Canada Technical Data C1060 Steel C1060 Steel C1070 C1070M 5 8 Bolt 3 4 Bolt 5 8 Bolt 5 8 TBE Bolt Yield Strength min 13 …

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  • underground cable bolting_JYTOP® Cable

    2017-10-31 · Cable Bolt DSI Underground. 270 ksi, low relaxation cable per ASTM A416. Supplied in any length, black or galvanized … DYWIDAG Cable Bolts for Mining – DYWIDAG-Systems. DYWIDAG Cable Bolts for Mining are used for temporary and semi-permanent rock reinforcement in underground Mining. Rock bolting with prestressing . About Our Cable Bolts ...

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  • 14 factors associated with the installation of a rock

    2014-10-20 · The factors that affect the price of installation are as follows: The cost of the fixture or rock bolt. Other installation materials such as expander shell, cement, resin or silicate cartridge. As rock bolts are seldom installed without accessories, we have the cost of such items as washers, bearing plates, strapping, wire mesh and wooden blocks.

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  • Roof Bolting Technology | Coal Age

    2012-6-1 · “DSI has one of the strongest nuts on the market. That will only increase the strength of the cable bolt or any of the other active systems. The DSI resin assisted Nos. 5, 6 and 7 Tandem Anchor bolts use a design that emphasizes the slit in its shell and chamfer on the nut.

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  • New Tools for Back Support | E & MJ

    2020-4-8 · The popularity of rock bolts varies by region with some mines favoring resin bolts, while others prefer friction stabilizers or inflatable bolts. They have mixed feelings about shotcrete. ... With a price tag of 1 million-2 million, they are an expensive capital item. ... DSI Australia has also established in-house testing facilities to ...

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  • (PDF) Notes on Rock Reinforcement Using Threadbar

    contractor usually assumed solid threadbar DSI [Dywidag] threadbar bolts, because that's what they are USED to seeing and using on other rockbolt jobs . So their winning bid would be 70K or 120K

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  • DYWIDAG Threadbar Anchors - DSI Civil

    DYWIDAG Bar Anchors. DYWIDAG Threadbar Anchors are an actively tensioned ground anchor system and correspond to DIN 4125 and EN 1537 regulations. Due to the active tensioning, anticipated deformations of the system and deformations at the civil engineering measure are minimized or entirely eliminated. This applies both to temporary structures ...

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  • Statement of Issues

    Rock bolts are inserted into drilled holes in the roof or walls of the mine. Rock bolts vary according to the mechanism used to secure them into the rocks. They are typically secured with resin, cementitious grout or a mechanical anchor. Hard rock miners often use friction bolts, which are secured into the rock by the force of the bolt itself.

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  • Jennmar

    2021-4-1 · JENNMAR Australia. For more than 20 years, our mission has been focused on developing and manufacturing a complete range of high quality ground control products. We have continuously developed new initiatives to reduce the time and associated costs our …

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  • Mechanical Anchors, Resin and Rebar Rock Bolts - DSI ...

    Which rock bolt system is the best one to use depends on a variety of factors, which have to be considered in each individual case. DSI Underground has longtime experience in the development, production and supply of mechanical anchors and rock bolts.

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  • COMBI-BOLT Combination Rock Bolt - DSI Schaum

    2017-8-10 · Anchors and Rock Bolts - COMBI-BOLT Combination Rock Bolt. The COMBI-BOLT is a unique combination rock bolt system. It offers the combined advantages of an immediate point anchorage and subsequently a fully grouted rock bolt. A two-step installation procedure allows fast installation and immediate anchorage, separate and independent grouting ...

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  • Mine Rock, Cable & Specialty Bolts BC | DSI | SPS

    Mining products from Dywidag-Systems International (DSI) have long been regarded for their quality, ease of use, and longevity. SPS Mining Supplies Ltd. in Smithers is proud to supply quality DSI drilling fluids, mine rock, cable and specialty bolts to facilitate BC …

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  • Friction Stabilizers - DSI Schaum Chemie

    2017-8-10 · Anchors and Rock Bolts - Friction Stabilizers Friction Stabilizers are mainly used for rock reinforcement in underground Mining. The shaft of the Friction Stabilizer consists of a metal strip which is folded to form a slotted tube. The bolt is installed into a borehole by applying impact energy.

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  • Equipment - DSI Underground Austria

    2019-5-29 · Pull-out tests on anchors and bolts are performed for supervision of the bolting quality. Depending on the type and design of the bolt in use, different testing equipment is utilized. Depending on the operation purpose, modularly designed sets of different pull testing equipment can be adapted to the whole range of bolts provided by DSI ...

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  • cable bolt underground mines - berkol.co.za

    Cable Bolt Plain DSI Underground Australia. Rock Bolts – Cable Bolts Cable Bolt Plain ... Only DSI Underground rock bolt components should be used to enable the optimum performance of the bolt system to be obtained. DSI Underground Mining Products Division is Quality Assured to ISO 9001:2015, Registration QMS 41328. Get Price; Installation ...

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  • Threadbar anchors - DSI Civil

    2019-4-30 · Rock Anchors are post-tensioned tendons installed in drilled holes for which at least the entire bond length is located in rock. The anchor force is transmitted to the rock by bond between the grout body and the rock. Rock anchors can remain unbonded in the free stressing length allowing the anchor to be checked and re-tensioned

    Get Price
  • Price List 2020 - UCAN Fast

    2021-1-8 · reinforced concrete, rock and granite, and extra long life in concrete compared to our regular SDS plus bit. Improved fluting reduces friction and accelerates dust removal. Will cut through rebar up to M10. •Ultra fast drilling •Extra long life in concrete •Drills natural stone UCAN carbide tipped drill bits are designed for fast ...

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  • DYWIDAG Threadbar Anchors - DSI Civil

    DYWIDAG Bar Anchors. DYWIDAG Threadbar Anchors are an actively tensioned ground anchor system and correspond to DIN 4125 and EN 1537 regulations. Due to the active tensioning, anticipated deformations of the system and deformations at the civil engineering measure are minimized or entirely eliminated. This applies both to temporary structures ...

    Get Price
  • Practical Rock Engineering Chapter 14 Rockbolts and Cables

    2018-9-21 · installation. For short term applications the bolts are generally left ungrouted. For more permanent applications or in rock in which corrosive groundwater is present, the space between the bolt and the rock can be filled with cement or resin grout. Dowels or anchor bars generally consist of deformed steel bars which are grouted into the rock.

    Get Price