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  • Raisebor America's oldest raise boring company > About Us

    RAISEBOR is the oldest and largest raiseboring contractor in the U.S. today, and is American owned. When founded in 1973, we had only one rig, a Robbins 41R, which provided us with raise drilling capability for 4' and 5' diameter raises. Since that time we have added to our fleet of raise machines one additional 

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  • The Robbins Company Western Reserve

    Headquartered in Solon, Ohio, The Robbins Company is the world's foremost developer and manufacturer of large diameter hardrock tunnel boring machines (TBMs). The Company also designs and manufactures continuously extending conveyors for use behind TBMs. Robbins sells its TBMs worldwide for large highway, 

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  • Raise Boring Compare, Review, Quotes (RFQ) from Raise Boring

    A raise borer is a machine used in underground mining for excavate a circular hole between two levels of a mine without the use of explosives.

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  • Atlas Copco Robbins 73R Raisebore

    Atlas Copco Robbins 73R. D.C. Drive 224 kW (300 HP). Connected power. Mains supply 415 volts, 50 Hz, 500 kVA. Diesel Genset supply 650 kVA unit with appropriate Load Bank. Compact design 5.8 m extended height (plus 400 mm beams if required). Pilot thrust 470 kN (106,000 lbs). Reaming thrust 4,450 kN 

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  • Raisebor America's oldest raise boring company > Home

    Atlas Copco 123RH, the most powerful raiseboring machine in the United States, can pull a 20' diameter raise at 3,000' and larger diameters at shorter depths Robbins 83RM raiseboring machine capable of 20' diameter and 2,000' deep IngersollRand RBM7SPLH for 1016' diameter raises up to 800' deep Robbins 

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  • Robbins 34RH QRS Atlas Copco

    MAIN BENEFITS. Safety in mine: The carefully crafted 34RH QRS is ideal for down reaming the safest drilling method when access to the lower level in a mine is limited. Versatile: The Robbins 34RH QRS can drill precise holes through either conventional raise boring (1.2 m) or down reaming (0.72 m) in most rock types.

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  • Considerations for largediameter raiseboring Australian Centre for

    The general raiseboring reaming process is shown in Figure 1(a), while a raise drill and rods are shown in. Figure 1(b), a reamer at raise a raise machine consisting of a rope winch, a borer and a control point. Hydraulic propulsion jacks came in the late 1950s by Robert Cannon and the Robbins Company in the USA.

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  • Atlas Copco Robbins 97RL Raisebore

    Atlas Copco Robbins 97RL. D.C. Drive 300 kW (400 HP). Connected power. Mains supply 415 volts, 50 Hz, 650 kVA. Diesel Genset supply 750 kVA unit with appropriate Load Bank. Compact design 4.4 m extended height (plus 400 mm if beams required). Pilot thrust 500 kN (115,000 lbs). Reaming thrust 6,700 kN 

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  • Raiseboring experiences in the gold mines of the Anglo SAIMM

    purchase of a raiseborer from a Group contractor and then carrying out a series of trials at Anglo American. Corporation gold mines. In the first twelve months of operation, 11 holes were bored on a nonprofit contracting basis using a Robbins. 61R raiseborer. This paper describes in general terms some of the experiences 

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  • The Future of Tunneling The Robbins Company

    Sep 18, 2017 The industry needs to automate cutter and bit changes as much as possible, and increase the integration of chemical grouting in tunneling. Project officials examine the cutterhead and cutters of the Rondout TBM. The machine can bore. Niels Kofoed and Danny Smith of contractor Kiewit examine the 

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  • 60 Years of Tunnelling tunnel

    4). Other notable inventions included custombuilt machines for mining appliions, such as the noncircular Mobile Miner, and raise boring machines. Today, The Robbins Company is an international developer and manufacturer of a wide range of tunnelling products, from small trenchless boring machines to megasized 

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  • Robbins 53RH Epiroc

    The Robbins 53RH is a low profile raise drill for holes ranging from 1.2 to 2.4 m (48 ft.) in diameter. This unique multipurpose raise drill is able to perform upwards boxhole boring as well as conventional raiseboring with no need to modify the drive assembly. The main gearbox features two float boxes to easily switch from 

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  • 4 Mining Technology

    Drillcon's latest addition to the raise boring fleet, a Robbins 91 on a project in Spain. exploration · geophysical · geotechnical · raise boring · underground core drilling · About Us Contact Us Company AZ Privacy Policy Terms and Conditions. © Copyright 2018 Kable, a trading division of Kable Intelligence Limited. Go Top.

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  • A new Approach to Shaft Development Work Coal Age

    Oct 12, 2015 Inset: Atlas Copco Secoroc cutters for the raise bore reamer. The 1,440ftlong, 26ftdiameter raise was actually the third project for the company's Atlas Copco Robbins 123RH C raise boring machine. Two earlier, 20ft raises were just enough for the crew to stretch its legs and get ready for the big pull.

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  • RMi parameters applied in prediction of tunnel boring rockmass.net

    some prediction models (from Robbins, 1980). The compressive strength, together with other physical properties of the rock are used by the. Robbins Company (now a subsidiary of Atlas Copco) for estimating the penetration rates of tunnel and raise boring machines built by the Robbins Company. This is done using 

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  • Raisebor America's oldest raise boring company > Home

    Atlas Copco 123RH, the most powerful raiseboring machine in the United States, can pull a 20' diameter raise at 3,000' and larger diameters at shorter depths Robbins 83RM raiseboring machine capable of 20' diameter and 2,000' deep IngersollRand RBM7SPLH for 1016' diameter raises up to 800' deep Robbins 

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  • Raiseboring equipment Epiroc

    The Epiroc range of Robbins raiseboring machines includes models for raiseboring, boxhole boring, and down reaming. Epiroc's range of raiseboring machines includes models for both conventional raise and boxhole boring as well as down reaming and it covers diameters from 0,5m up to over 6m. The machines are 

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  • Terratec LinkedIn

    About us. Incorporated in 1990, TERRATEC is the worldrenowned Australian designer and manufacturer of Tunnel Boring Machines, Raise Boring Machines and other custommade products for tunnelling and mining appliions. TERRATEC's success is based on the experience and excellence of its engineering team 

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  • Atlas Copco Robbins 43R Raisebore

    Atlas Copco Robbins 43R. Hydraulic type machine. Connected power. Mains supply 1000 volts, 50 Hz, 150 kVA. Diesel Genset supply 350 kVA unit. Compact design 4.3 m extended height. Pilot thrust 220 kN (49,000 lbs). Reaming thrust 1,335 kN @ 240 bar (300,000 lbs ). Reaming torque 60 kN m (44,000 ft lbs).

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  • Atlas Copco Robbins 43R Raisebore

    Atlas Copco Robbins 43R. Hydraulic type machine. Connected power. Mains supply 1000 volts, 50 Hz, 150 kVA. Diesel Genset supply 350 kVA unit. Compact design 4.3 m extended height. Pilot thrust 220 kN (49,000 lbs). Reaming thrust 1,335 kN @ 240 bar (300,000 lbs ). Reaming torque 60 kN m (44,000 ft lbs).

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  • Raise borer All industrial manufacturers Videos DirectIndustry

    Find all the manufacturers of raise borer and contact them directly on DirectIndustry.

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  • Hardworking Robbins TBM boring 28 km of tunnels below

    Oct 5, 2016 The SK JV stands proudly in front of the cutterhead for the 6.2 m (20.2 ft) diameter Robbins TBM currently boring the DigIndy tunnels. . The construction equipment company specializes in the design, manufacture and customization of vacuumexcavation machinery and equipment. Read More. Share this:.

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  • Raisebor America's oldest raise boring company > About Us

    RAISEBOR is the oldest and largest raiseboring contractor in the U.S. today, and is American owned. When founded in 1973, we had only one rig, a Robbins 41R, which provided us with raise drilling capability for 4' and 5' diameter raises. Since that time we have added to our fleet of raise machines one additional 

    Online
  • Raise Boring FrontierKemper Constructors, Inc.

    RAISE BORING. What is Raise Boring? Raise Boring is a method of shaft excavation, inclined or vertical, where the Raise Bore Machine drills a pilot hole into an existing mine and then reams a larger diameter shaft from the lower level to either the surface or another underground level eliminating the need for explosives.

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  • World's biggest raise? Mining & Construction

    Jan 5, 2016 It was on December 7, 2014, that Raisebor, a division of Cowin & Company Inc., completed the record raise using its Atlas Copco Robbins 123RH C raiseborer equipped with a multimodular wing system (MMWS) reaming head. The task was to provide the mine with a utility and access shaft closer to the 

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  • Rising to the challenge Redpath Mining

    Apr 19, 2017 However, when James. Robbins built the prototype. Robbins 41R raise drill in 1962, it was the beginning of a new era. "Boring of raises had attractive features over traditional methods. It was faster, cleaner and, above all, allowed for remote access and operation, removing the risks associated with entering 

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  • Raiseboring experiences in the gold mines of the Anglo SAIMM

    purchase of a raiseborer from a Group contractor and then carrying out a series of trials at Anglo American. Corporation gold mines. In the first twelve months of operation, 11 holes were bored on a nonprofit contracting basis using a Robbins. 61R raiseborer. This paper describes in general terms some of the experiences 

    Online
  • Raise borer Wikipedia

    A raise borer is a machine used in underground mining, to excavate a circular hole between two levels of a mine without the use of explosives. The raise borer is set up on the upper level of the two levels to be connected, on an evenly laid platform (typically a concrete pad). A smalldiameter hole (pilot hole) is drilled to the 

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  • Raiseboring equipment Epiroc

    The Epiroc range of Robbins raiseboring machines includes models for raiseboring, boxhole boring, and down reaming. Epiroc's range of raiseboring machines includes models for both conventional raise and boxhole boring as well as down reaming and it covers diameters from 0,5m up to over 6m. The machines are 

    Online
  • Tunnel Boring Machine in NTunnel Nevada Test Site. NRC

    Aug 17, 1993 about the Board's trip to the Nevada Test Site to evaluate the status of the 18ft tunnel boring machine (TBM) for Mr. Ivan Smith to meet with your technical consultants to clarify any of the issues raised in his report. .. While employed by the Robbins Company be supervised the installation of this Tun.

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