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Suitability of Brisbane Rock Conditions to Roadheader ...

Suitability of Brisbane Rock Conditions to Roadheader ...

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VoestAlpine Model VoestAlpine created a model for their Alpine Miner and Alpine Tunnel Miner 105 roadheaders. These machines are 300 kW transverse roadheaders and the relationship developed plots the net cutting rate (NCR) against the rock UCS. The model is further refined into three separate plots based on the UCS to BTS ratio. Thuro and Plinninger's Model Thuro and Plinninger (2003 ...

Roadheaders and Hydraulic Cutters for Mining | Antraquip ...

Roadheaders and Hydraulic Cutters for Mining | Antraquip ...

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Continuous miner style roadheaders are utilized in underground mining for development and production in coal, potash, gold, uranium, gypsum etc. Hydraulic cutters can be used for production mining in open pit quarries or for mine development and scaling at underground mines. Please see below some projects with photos and videos of Antraquip machines working in such mining appliions. Mining ...

The ICUTROC project

The ICUTROC project

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 · misc{etde_, title = {The ICUTROC project roadheaders for hard rock appliions and influences on their cutting performance} author = {Gehring, K H, and Fuchs, M} abstractNote = {The main fields of appliion for roadheaders have been roadway drivage in coal mines and for mineral production. Their main field of appliion in tunnelling is in softer and partly friable .

Roadheaders, Dinting Machines, Rotary Cutters | NPKCE ...

Roadheaders, Dinting Machines, Rotary Cutters | NPKCE ...

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Part of NPK's line of mining equipment, Paus Dinting Machines, also referred to as Roadheaders, cut and grade in one operation easily coping with hardened roadway surfaces. The Roadheader's dinting heads loosen the uneven surface while the scraper blade levels the roadway optimizing vehicle speed and ultimately improving productivity.

Bank Colliery, Mpumalanga

Bank Colliery, Mpumalanga

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 · Mine Manager: Malcolm Campbell. Unique features: Bank Colliery is the only underground mine in the vicinity, surrounded by opencast mines on .

Rodeo's Roadheader Experiment Pays Off | E MJ

Rodeo's Roadheader Experiment Pays Off | E MJ

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Roadheaders are not commonly used in hardrock mining production. They are generally employed as tunneling or underground construction machines, although they and their continuousminer cousins are used to mine industrial minerals such as potash, gypsum and salt. However, the performance points of these tracked, rotatingdrum machines—continuous production of a fairly uniform fragmented ...

Hard Rock Cutting with Roadheaders the Icutroc Approach

Hard Rock Cutting with Roadheaders the Icutroc Approach

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Hard Rock Cutting with Roadheaders the Icutroc Approach . Gehring, VOESTALPINE Bergtechnik B. Reumiiller, VOEST ALPINE Bergtechnik Abstract: The introduction of Roadheaders with low cutting speed opened a whole new range of appliions. First, this low cutting speed was achieved with a specially designed switch gear and later, by a newly designed low speed .

Roadheading systems

Roadheading systems

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 · FAMUR has in its offer stateoftheart roadheaders, available in various types and versions. Our machines are designed to drill main galleries in mines as well as to excavate the roadways accessing the face for further exploitation. Special versions of the roadheaders allow to cut rocks in quarries, old concrete foundations, quartzite sands, hard gangues on mine waste dumps and to dig .

Major Mines Projects | Carlin Mine

Major Mines Projects | Carlin Mine

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The Complex's operating mines and advanced projects include the Goldstrike open pit and underground mine, the Leeville underground mine, the Pete Bajo/Fence underground mine, the Exodus underground mine, the Genesis/TriStar Complex open pits (Goldstar and Silverstar), the Gold Quarry open pit, Emigrant open pit and the satellite open pit deposits (Perry and Green Lantern).

Twistdraai Coal Mine, South Africa

Twistdraai Coal Mine, South Africa

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The primary production fleet consists of two Voest Alpine AM85 roadheaders, two Voest Alpine AM 75s, 18 Joy 12HM31 continuous miners and one Joy 12HM21. A fleet of Joy shuttle cars and seven Long Airdox continuous haulages transports the coal from the primary production machines to Buffalo insection sizers. Support utilises Rham Sascoaltype roofbolters. A key thrust has been to increase the ...

refurbished continuous mining roadheaders

refurbished continuous mining roadheaders

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NDCO can supply this Roadheaders and Hydraulic Cutters for Mining Antraquip,Continuous miner style roadheaders are utilized in underground mining for development and production in coal, potash, gold, uranium, gypsum etc. Hydraulic cutters can be used for production mining in open pit quarries or for mine development and scaling at underground mines. Please see below some projects with photos ...

Estimation of Specific Energy and Evaluation of Roadheader ...

Estimation of Specific Energy and Evaluation of Roadheader ...

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 · There is an increase in the use of roadheaders in the preparatory work and production stages of coal, metallic and rock salt mines, mine roadway excavation or tunnelling projects. The cutting tools used in these mechanical excavators are divided into two types, as drag and roller type cutters, according to the excavation principle. In general, chisel type and conical type cutters are used in ...

Twistdraai Coal Mine, South Africa

Twistdraai Coal Mine, South Africa

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The primary production fleet consists of two Voest Alpine AM85 roadheaders, two Voest Alpine AM 75s, 18 Joy 12HM31 continuous miners and one Joy 12HM21. A fleet of Joy shuttle cars and seven Long Airdox continuous haulages transports the coal from the primary production machines to Buffalo insection sizers. Support utilises Rham Sascoaltype roofbolters. A key thrust has been to increase the ...

Roadheaders : VoestAlpine AM75 Roadheader

Roadheaders : VoestAlpine AM75 Roadheader

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Description. Used VoestAlpine AM75 Roadheader For Sale: Multiple units available in various states of condition. Contact: Al Leeming +/

Some geological and geotechnical factors affecting the ...

Some geological and geotechnical factors affecting the ...

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Mine where a Voest Alpine AM75 roadheader was utilized. Two distinct groups of data were evident. The data grouped around Bilgin line was strongly influenced by the jointing and weakness zones present in rock mass. The other group of data on the line produced by .

A paradigm shift

A paradigm shift

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 · Wieser, who's operated smaller roadheaders from predecessors VoestAlpine and Dosco in previous projects, estimates some of the hardest black limestone Drill Tech has encountered at Cortez to be in the 12,00015,000 PSI range. "The MH620 has no trouble cutting it," Wieser says. "The roadheader itself stays stable and doesn't move around and jump around and beat .

Roadheaders and Hydraulic Cutters for Mining | Antraquip ...

Roadheaders and Hydraulic Cutters for Mining | Antraquip ...

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Continuous miner style roadheaders are utilized in underground mining for development and production in coal, potash, gold, uranium, gypsum etc. Hydraulic cutters can be used for production mining in open pit quarries or for mine development and scaling at underground mines. Please see below some projects with photos and videos of Antraquip machines working in such mining appliions. Mining ...

Industry • The history of roadheaders

Industry • The history of roadheaders

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 · The R120, R130 and R150 roadheaders were developed to tackle the challenge of increasing the power of the cutter head to expand the capacity to mine rocks harder than coal. Finally, noticing the development limitations of the base model, the AM50, the KR150 mediumweight roadheader was designed. It was followed by an even heavier roadheader, now known as the R .

Refurbished AM50 Roadheader rolls out

Refurbished AM50 Roadheader rolls out

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in a Canadian Potash mine. The AM50 is a work horse roadheader. A stout yet compact 25ton machine with 150hp cutter motor, it is ideal for medium hardness rock and is especially well suited to cutting potash. Originally manufactured by VoestAlpine of Austria (now ) there are many hundreds of these roadheaders in operation around the world. Alpine specializes in refurbishing used ...

Roadheader – A comprehensive review

Roadheader – A comprehensive review

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 · A comprehensive survey of literature pertaining to varied aspects of the roadheader is presented in this paper. This review classifies literature on roadheaders into multiple classes and subclasses and identifies important parameters that define roadheader efficiency and the risk factors involved in its deployment.