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  • Rock Bolt, Mining Rock Bolt, China Supplier - Zongxiang

    Rock Bolt. Wire Mesh. Cable Bolts. Accessories. Split Set Stabilisers. Self Drilling Anchor Bolt. Address: No. 1738, 17th Floor, No. 1 Mall, Shangdu Road, Zhengdong New District, Zhengzhou City, Henan Province, China. Email: [email protected] Tel: +86 371 65369795.

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  • Expandable Rock Bolts - SSAB

    Specification: dia. 10-50mm Length: can be 18m per rod Full thread GRP bolts, perfect thread fiberglass anchor bolt Grp Anchor Rock Bolts Used In Underground Mining 1 The percentage of glass fiber: ≥80 % 2 Tensile strength: ≥800N/mm2 3 E lastic modulus : ≥37000 N/mm2 4 Breaking Extensibility: ≥2.5 % 5 Bearing capacity of screw thread: ≥14KN/thread 6 Shear strength: …

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  • Mining Rock Bolts China Trade,Buy China Direct From

    2021-7-28 · 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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  • Swellex Rock Bolting System | Rock Reinforcement | Epiroc

    2018-11-19 · company, latest technology, innovation and the experience made in the tunnel & mining rock bolt field. Srons Engineers is an engineering company committed to deliver high quality rock bolts for tunnel support and slope reinforcement. Because we are a new company, we are able to keep our overheads low and maintain competitive pricing. Mission & Vision

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  • TECHNICAL BAR SYSTEM - Self Drilling Anchor Rock Bolts ...

    DYWIDAG-Systems International Pty. Ltd. (DSI) is Australia’s largest manufacturer & supplier of specialist strata reinforcement & support products to the underground coal & metalliferous mining sectors.DSI is also a major exporter of these products to the Asia-Pacific Region.

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

    370mm². Rolled Thread. M24x3.0mm Pitch. Key Features. Manufactured from a special hot rolled deformed bar designed by DSI Underground. This bolt features a rib pattern which actively assists with mixing the chemical anchors during installation.

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  • Standard Bar - DSI Underground Australia

    2018-9-28 · Furnish rock bolts of at least Grade 150, ASTM A-722, Type II (deformed) bar, one and one quarter inch nominal diameter, high-strength prestressing steel. Bolts must have rolled thread-like deformations over the entire length. Larger diameter bolts are acceptable if supplied at no additional cost to the State. Bolts must be fusion bonded epoxy coated in accordance with ASTM …

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  • ITEM 203.17170017 - CEMENT GROUTED ROCK BOLTS - ONE

    2018-9-21 · 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. Tensioning is not possible and the load in the dowels is generated by movements in the rock mass. In order to be effective, dowels have to be installed before

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  • Practical Rock Engineering Chapter 14 Rockbolts and Cables

    A 194/A 194M Specification for Carbon and Alloy Steel 3.1.1.1 header plates—large rectangular bearing plates, Nuts for Bolts for High-Pressure or High-Temperature usually 6 in. (152 mm) wide by 16 to 18 in. (406.4 to 457.2 Service, or Both mm) long, or any other shape with an equivalent area, used in A 220 Specification for Pearlitic Malleable Iron substitution for wooden header …

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  • Rock Bolt, Mining Rock Bolt, China Supplier - Zongxiang

    If you have a demand about rock bolt, you can contact us, we will send you the detail information. So don't hesitate to send us a email. Rock Bolt, Mining Rock Bolt, China Supplier - Zongxiang

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  • Rebar Rockbolts - DSI Underground Canada

    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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  • Atlas Copco Rock Reinforcement Products Product catalogue

    DYWIDAG-Systems International Pty. Ltd. (DSI) is Australia’s largest manufacturer & supplier of specialist strata reinforcement & support products to the underground coal & metalliferous mining sectors.DSI is also a major exporter of these products to the Asia-Pacific Region.

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

    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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  • Standard Bar - DSI Underground Australia

    2021-4-29 · Specification for quenched and tempered alloy steel bolts, studs, and other externally threaded fasteners. ASTM A394. Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare. ASTM A437. Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service.

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  • ASTM Specifications for Fasteners & Fastener Materials ...

    Bolts are headed, externally threaded fasteners used to keep two objects, often metal or wood, in a fixed position relative to one another. Unlike screws, which cut their own threads, bolts pair with the internal threads of nuts to stay in place and ensure the desired level of tension in the bolted joint. The use of nuts aids in disassembly and reassembly.

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  • Bolts | Fastenal

    Rock Z4 - Specification General; Usage: For Smartphones For quadcopter: Design; Body: 410 gram 235×145×220 mm. Display; Size: Smartphone screen Smartphone screen size 4.7 – 6.2 inches Field of view horizontal 120 ...

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  • TTY Bolt Specification & Installation | Fel-Pro Gaskets

    Is it worth it to purchase virtual reality glasses BOBOVR Rock. Specifications and specification of BOBOVR VR glasses, advantages and disadvantages

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  • Rock Bolt, Mining Rock Bolt, China Supplier - Zongxiang

    If you have a demand about rock bolt, you can contact us, we will send you the detail information. So don't hesitate to send us a email. Rock Bolt, Mining Rock Bolt, China Supplier - Zongxiang

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  • Thread rock bolt - Resin rock bolt - Zongxiang

    Resin Rock Bolt. Price:according to your drawings. Material::MG355, MG400, MG500. Size:32*2.4, 32*1.8, 32*1.2,etc. DESCRIPTION: Resin rock bolt is the most basic part of roadway support in contemporary coal mines, it reinforced the surrounding rock of the roadway, make the surrounding rock support itself.

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  • Rebar Rockbolts - DSI Underground Canada

    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.

    Get Price
  • Atlas Copco Rock Reinforcement Products Product catalogue

    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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  • Rock Anchoring and Bolt Systems

    2018-9-28 · ITEM 203.17170017 - CEMENT GROUTED ROCK BOLTS - ONE AND ONE QUARTER INCH NOMINAL DIAMETER (GRADE 150) EI 18-004 Page 1 of 3 US Cust L 01/01/19 DESCRIPTION Drill the necessary holes, and furnish and install rock bolts and appurtenances in accordance with the provisions of this specification. The Engineer shall provide the locations, orientations,

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  • ITEM 203.17170017 - CEMENT GROUTED ROCK BOLTS - ONE

    Bolts are headed, externally threaded fasteners used to keep two objects, often metal or wood, in a fixed position relative to one another. Unlike screws, which cut their own threads, bolts pair with the internal threads of nuts to stay in place and ensure the desired level of tension in the bolted joint. The use of nuts aids in disassembly and reassembly.

    Get Price
  • Bolts | Fastenal

    2001-1-1 · scope: 1.1 This specification covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this specification are double-end threaded and slotted steel bars; fully grouted bolts and threaded bars; mechanical anchorage devices used for point anchorage applications; roof truss systems; partially grouted deformed bolts…

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  • Ground anchors, soil nails, rock bolts – Atlas Foundations ...

    Tat Eng was established in the year 1978 and is now one of the top metal suppliers in Singapore well-known for providing customers the most competitive pricings, good services, quality products, and prompt delivery. We are one of the leading importers, exporters, wholesalers and stockists for a wide range of bolts and nuts fasteners.

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  • Thread rock bolt - Resin rock bolt - Zongxiang

    Resin Rock Bolt. Price:according to your drawings. Material::MG355, MG400, MG500. Size:32*2.4, 32*1.8, 32*1.2,etc. DESCRIPTION: Resin rock bolt is the most basic part of roadway support in contemporary coal mines, it reinforced the surrounding rock of the roadway, make the surrounding rock support itself.

    Get Price
  • Atlas Copco Rock Reinforcement Products Product catalogue

    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.

    Get Price
  • 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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  • Rebar Rockbolts - DSI Underground Canada

    DYWIDAG-Systems International Pty. Ltd. (DSI) is Australia’s largest manufacturer & supplier of specialist strata reinforcement & support products to the underground coal & metalliferous mining sectors.DSI is also a major exporter of these products to the Asia-Pacific Region.

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

    2019-12-1 · ASTM F432. May 1, 2010. Standard Specification for Roof and Rock Bolts and Accessories. This specification covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this specification …

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  • ASTM F432 - Standard Specification for Roof and Rock

    Hex tap bolts are useful for machinery applications, such as in motor assembly. Lag screws have sharp points for easy use in wood surfaces. Metric bolts are sized differently than US standard bolts and are commonly used in machinery. Plow bolts are similar to carriage bolts. They are made with a countersunk head for a flat finished surface.

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  • Buy Wholesale Bolts | Carriage, Hex Cap, Tap, Machine &

    2016-11-21 · SA Bolts and Nuts is one of South Africa's suppliers of Anchors, Bolts, Nuts, Washers, Clips, Screws and a wide range of other fasteners. Our services include a vast range of industries, related to high tensile nuts & bolts, for a diverse range of applications in the engineering, automotive, industrial and mining industries.

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  • Bolts Selection Guide | Engineering360

    Rock Z4 - Specification General; Usage: For Smartphones For quadcopter: Design; Body: 410 gram 235×145×220 mm. Display; Size: Smartphone screen Smartphone screen size 4.7 – 6.2 inches Field of view horizontal 120 ...

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  • Rock Bolt - rock bolts Suppliers, Rock Bolt Manufacturers ...

    Price : Get Quote. Diameter : 16mm 18mm 20mm 22mm. Material : steel. We are offering our client an excellent quality range of Rock Bolts. These Rock Bolts are made from very high quality raw material which ensures high. durability at its user end. These Rock Bolts are in …

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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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  • Secoroc Rock Drilling Tools SWELLEX ROCK BOLTS

    2016-10-20 · Swellex rock bolts General information Swellex Pm12 Minimum breaking load 110 kN Minimum yielding load 90 kN Minimum elongation 10% Expansion pressure 300 bar For further information, see also technical data page 7. Minimum elongation 'A': According to EN-ISO 6892-1 where applicable. Swellex Pm12 rock bolts Size Length (m) Weight (kg) Product ...

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  • ASTM F432 : Standard Specification for Roof and Rock

    2019-12-1 · ASTM F432, 2019 Edition, December 1, 2019 - Standard Specification for Roof and Rock Bolts and Accessories This specification covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this specification are double-end threaded bars; fully grouted bolts and threaded bars; mechanical anchorage devices used …

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  • Bolt Depot - Nuts and Bolts, Screws and Fasteners online

    Large selection of nuts and bolts as well as other fasteners online. Nuts, bolts, and screws in stainless steel, bronze, galvanized and more including metric bolts. Buy individual nuts and bolts with no minimum order, fast shipping and a 100% guarantee

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  • SA Bolts & Nuts | Bolt and Nut Supplier - Wholesalers of ...

    2016-11-21 · SA Bolts and Nuts is one of South Africa's suppliers of Anchors, Bolts, Nuts, Washers, Clips, Screws and a wide range of other fasteners. Our services include a vast range of industries, related to high tensile nuts & bolts, for a diverse range of applications in the engineering, automotive, industrial and mining industries.

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  • Grade 8 Bolts - Coarse and Fine Thread - Grade 8 Nut and ...

    2018-3-5 · Grade 8 Bolts: Quick Facts. A grade 8 bolt is stronger than the more commonly used grade 5. It is made of alloy steel and has six radial lines on the top of the bolt head. Grade 8 bolts have a tensile strength of 150,000 pounds per square inch. We recommend using grade 8 nuts, flat washers and high alloy lock washers with any grade 8 bolts ...

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  • Titanium Fasteners - Bolts, Nuts & Screws | Titanium

    2 天前 · Titanium screws, bolts, nuts, washers, lock washers, hose clamps and threaded rods are stocked and ready to ship. Below is a list of some of the most commonly stocked sizes but please check with us as other sizes are available and our stock is updated regularly. • Grade 2: Sizes M2 - …

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  • Rock bolt | mining | Britannica

    Fastenal is the largest fastener distributor in North America. Shop our huge selection of OEM, MRO, construction, industrial, and safety products.

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