JENNMAR
The civil division of Jennmar offers the civil works industry products for the purpose of rock, soil and concrete anchoring, post tensioning systems and tunneling support. View Details 258 Kappa Drive Pittsburgh, PA 15238
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The civil division of Jennmar offers the civil works industry products for the purpose of rock, soil and concrete anchoring, post tensioning systems and tunneling support. View Details 258 Kappa Drive Pittsburgh, PA 15238
Get PriceJENNMAR plate products feature high strength, light weight and a low profile, effectively distributing roof bolt load evenly in all directions. Manufactured under rigid quality - control conditions in accordance with ASTM F432, plate ratings range from 20,000 to 60,000 lbs. Customized sizes and coatings are available.
Get PriceJENNMAR offers a complete line of cable support products. These products are based on 7-strand, high-strength cable. JENNMAR offers an industry-leading line of cable products including: non-tensioned cables, post-tensioned cables, tensionable cables for primary roof support, and fully-grouted cables.
Get Price2021-4-1 · 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 customers need to spend on ground support. Our Rapid Development Underground products have ...
Get PriceHot DIP Galvanized Double Head Screws Stainless Steel Solar Tracking System Roof Hardware Bracket Fittings Hanger Bolts with Shoulder US 0.08-0.5 Piece Min. Order: 10000 Pieces
Get PriceWidely used and user-friendly truss system especially in extremely adverse conditions such as: • Extremely laminated conditions. • Highly fractured materials at various anchorage horizons. • Conditions that require higher stiffness with minimal roof movement. • Low profile ensures maximum floor to roof …
Get Price2021-3-3 · Mining Engineer, Jennmar Australia Pty Ltd, 40 - 44 Anzac Avenue, Smeaton Grange NSW 2567. Email: [email protected] 2. MAusIMM, Senior Lecturer, School of Mining Engineering, University of New South Wales, Sydney NSW 2052. Email: [email protected] 3.
Get Price2021-3-3 · E-mail: [email protected] Mobile: 0418 687 371. Paul Gregg. Chief Operating Officer. E-mail: [email protected] Mobile: 0447 771 475. Matthew Berry. Commercial Manager. E-mail: [email protected] Mobile: 0408 269 658. Michael Sveronis. Plant Manager NSW. E-mail: [email protected] Mobile: 0408 209 156. Armand du Plessis. National Quality Manager
Get PriceBEAMS. J-Channel Beams. J-Channel uses 3/16' high strength steel with 50,000 psi yield strength and can replace wooden timber beams from 3 × 6' up to 3 × 10'. • Lightweight, weighing only 9.58 lb/ft. Easy to handle, reducing handling injuries. • Choice of steels and thicknesses provide a variety of strength.
Get PriceA method of installing a mine roof bolt in a mine roof bore hole comprising the steps of: inserting a frangible curable resin cartridge into the bore hole; inserting a mine roof bolt in the bore hole, the mine roof bolt comprising an elongated rod having (i) a first end; (ii) a second end extending out of the bore hole; and (iii) a segmented resin compression layer having segments tapering only in the direction of …
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Get Price2021-3-3 · 2 www.jennmar.com.au MISSION STATEMENT JENNMAR Australia Pty Ltd is a leader and innovator in the design and manufacture of roof and ground control systems for the mining, . tunneling and construction industries. We are dedicated to providing our customers with competitively priced quality products and services as well as increasing the
Get Price2011-12-13 · In 1972, Jennmar began to change the primary focus of its business to the manufacturing of roof support systems. Jennmar’s first step was the purchase of the manufacturing machinery necessary to begin producing steel mine roof bolts in Cresson, Pa. Three years later, it introduced its first specialty bolt – the combination bolt.
Get PriceThe invention claimed is: 1. A mine roof bolt comprising: an elongated rod having a first rod end and a second rod end and comprising a resin control surface located on said rod at a position between said first and second rod ends, said resin control surface having a first surface end and a second surface end, the surface defining a channel extending between said first and second surface ends.
Get Price2021-3-3 · technology compliments roof support by providing the benefit of chemical bonding within seconds of installation. Various formulations of resin mastic and catalyst were developed to cater to the requirements of different mining conditions. Since the last 10 years, about six different J-Lok primary resin formulations have been developed in Australia.
Get Price1.1 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; formable anchorage devices ...
Get PriceProduct code: SPE-M12F. £1.50. In Stock. Add Now. Showing 1 to 16 of 16 (1 Pages) Direct Channel's Range of Hook Bolts & Eye Bolts. Hook Bolts & Eye Bolts are used widely in the support & roofing trade. All available from stock for next day delivery. Further Discounts Available for Bulk Orders.
Get PriceClassic Skroo Bolts and Nuts Trading. 287 likes · 2 talking about this. We have complete and different types of bolts and nuts we are giving satisfactory with fast and reliable service with...
Get PriceA program of field and laboratory studies was undertaken to examine various factors influencing the load transfer mechanism between the bolt, resin and rock. The entire study used M24, 21.7 mm diameter X-grade Jennmar JBX bolts and the standard Orica fast setting resin. A series of Short Encapsulation Pull Tests were carried out in three mines.
Get Price2020-7-27 · “They can couple these bolts and use 16- and 20-ft lengths.” “Three years ago, Jennmar began a partnership with customers to develop the MPA system. With assistance and input from those customers, we were able to develop technology that addresses their ground support needs, and it has really taken off,” Yound said.
Get PriceUses FASLOC ® has been a leading supplier of polyester resin cartridges to the mining industry for over 30 years. FASLOC ® resin cartridges allow for quick and reproducible anchoring of many varieties of bolts and cables. In mine roof support, FASLOC ® systems reinforce strata, providing strength and rigidity in untensioned systems, and ensure a durable anchorage for FASLOC ® resin grouted ...
Get PriceContact to Learn More. Phone: 304-864-3601 Fax: 304-864-4169 P.O. Box 119 Reedsville, WV 26547
Get PriceWhat is claimed is: 1. A low profile roof bolt head comprising: a first section adapted for insertion into a roof hole, said first section having a first end surface of the roof bolt head; a second section adapted for accommodating a tightening tool, said second section having a second end surface of the roof bolt head; and a first throughhole portion extending through said first section and ...
Get Price1 Jennmar Australia Pty Ltd, ... After the Bulbed 28 mm Hol low Strand unexpectedly reached the 30 t capacity of the . ... instrumented roof bolts, and three-dimensional roof stress cells. The ...
Get Price2010-5-4 · Ground Control Specialists Focus on Safety. The old refrain is becoming all too common in the underground coal mining sector: All the good coal is gone. In addition to a decent mining height, another characteristic of good coal is a thick solid sandstone roof. …
Get Price2021-4-5 · The more commonly used bolts are the Fully-Grouted Non-Tensioned (FGNT) cable bolts and self-drilling hollow-core bolts. Exemplary grouts include the US Grout, the TDS-240 and the J-PLUG Acrylate Grout. FGNT cable bolts are for supplemental roof support, strata consolidation or water control.
Get PriceExpandable rock bolts have been widely used for rock reinforce- ments, particularly in underground hard rock mines, for over 35 years due to low cost, easy installation, effectiveness, and favorable
Get Price2017-6-1 · 1. Introduction. Rockbolt is the most widely used support element in support systems in underground mines and civil tunnels. Rockbolting design is indeed mainly based on experience and it appears that rockbolting design is simply a business of selection of rockbolt types and the determination of bolt length and spacing, but, one essentially uses, either explicitly or implicitly, a methodology ...
Get Price2018-10-7 · GOVERNMENT ENDORSEMENT OF MODERN ROOF ... PrairieCEO, presenting on the low cost mine design for ’s . During the the LCP ... Roof bolts and chemical anchors are currently manufactured in Poland by Australian firms Orica and Jennmar and are widely available for purchase in- …
Get Price0.40' (10.16 mm) Thread Size (left and right) I. All Bolts. 5/8”- 11 UNC. 3/4”- 10 UNC. 7/8”-9 UNC. All dimensions in accordance with ASTM F432 & CSA M430-90 specifications. Technical Data. C1060 Steel.
Get PriceRoof Bolts. Through Bolts. U Bolts. Price. Under £10. £10 to £20. £20 to £30. £30 to £50. Category. Bolts. clear. Bolts. Sort by. Filters. Coach Bolt & Nut M10X100 - Single. Regular price £0.35 £0.35. Anchor Bolt Hook Type M8 x 65 - Each. Regular price £1.13 £1.13. Coach Bolt & Nut M8X50 - Single ...
Get PriceContact to Learn More. Phone: 304-864-3601 Fax: 304-864-4169 P.O. Box 119 Reedsville, WV 26547
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Get Price1 Jennmar Australia Pty Ltd, ... After the Bulbed 28 mm Hol low Strand unexpectedly reached the 30 t capacity of the . ... instrumented roof bolts, and three-dimensional roof stress cells. The ...
Get Price2016-3-25 · Developing a Roof Control Game Plan. What makes matters worse is that many of the mines will get away with a decision to skimp here and there. Then, one day, they encounter serious problems, where tens of thousands of dollars per hour lost due to downtime from a roof fall on a conveyor wipes out all of the money saved from not installing ...
Get Price2018-10-7 · GOVERNMENT ENDORSEMENT OF MODERN ROOF ... PrairieCEO, presenting on the low cost mine design for ’s . During the the LCP ... Roof bolts and chemical anchors are currently manufactured in Poland by Australian firms Orica and Jennmar and are widely available for purchase in- …
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Get PriceExpansion 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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Get PriceJennmar offers the mining and tunneling industries the most reliable, high strength truss systems available. Truss systems can eliminate cribbing expense and labor. KMS, a Jennmar affiliate, exclusively designs roof control plans with the aid of 3D computer modeling and Auto Cad, to help reduce your overall roof control costs.
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