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Mr341 roadheader is a part face cutting machine

  • Shear up - Solid Ground : Solid Ground

    With a cutting power of 540 kilowatts and a weight of 127 tonnes, it shears both down and up to increase productivity. Shearing up is an operation where other types of machines would typically become unstable. This happens if the picks on the cutting drum begin to climb on the face, but the MC470 is designed to prevent that.

  • ROADHEADER IN TUNNELING

    PARAMETER FOR ROADHEADER CUTTABILITY HOW TO ASSESS SPC. 16 0,001 0,010 0,100 1,000 10,000 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 Specific Pick Consumption [picks/solid m³] Uniaxial Compressive Strength [MPa] Specific Pick Consumption (SPC) for Low Speed Cutting with Transverse Cutterhead and 22 mm TC Diameter Picks of

  • Roadheader A comprehensive review - ScienceDirect

    Jan 01, 2020· The roadheader is a machine for excavating rock in mining and civil construction projects. It is a hybrid machine, with better manoeuvrability than that of tunnel boring machines. It can cut rocks even up to 160 MPa, if laminated or fractured, in different tunnel profiles and adapts easily to changing operational conditions.

  • Tunnel Boring Machines (TBM) Roadheaders (TSM)

    Tunnel boring machines are full-face cutting machines, which means that, unlike road headers, they excavate the entire tunnel cross-section in one step. Source: en.wikipedia. Excavation of the roadheader for a parking garage under the Schlossberg Thun, Switzerland. TSM: Roadheaders belong to the category of peripheral milling machines due

  • ROADHEADER PERFORMANCE PREDICTION

    cutting rates per hour or per shift will only be a small and variable fraction of any calculated instantaneous cutting rates. Laboratory cuttability tests are a useful short-cut, in using a small-scale simulation of the action of a real cutting tool as mounted on a roadheader.

  • A Closer Look at the Design of Cutterheads for Hard Rock

    Dec 01, 2017· A higher cutterhead rotational speed means a higher rate of penetration (ROP), assuming that the machine power is sufficient. The cutter tip width, T, is another parameter to be selected; this controls the cutting forces, F, in an almost linear fashion (

  • MR341 Roadheader MINING [Ground Construction

    MR341 roadheader is a part-face cutting machine designed for roadway development, as well as coal, rock, gypsum, potash and salt mining.

  • Roadheader - Wiki

    A roadheader, also called a boom-type roadheader, road header machine, road header or just header machine, is a piece of excavating equipment consisting of a boom-mounted cutting head, a loading device usually involving a conveyor, and a crawler travelling track to move the entire machine forward into the rock face.. The cutting head can be a general purpose rotating drum mounted in line or

  • launches MR341 roadheader - Mining Magazine

    Feb 20, 2013· launches MR341 roadheader. Mining presented a new roadheader to customers in early February at its competence centre for mechanical cutting in Zeltweg, Austria. Archive > Equipment.

  • ROADHEADERS PERFORMANCE OPTIMIZATION

    Roadheader performance and related parameters are reviewed and their effects on the production and This limit reflects the lack of stiffness on the part of machine to hold the each bit depends on its position with respect to the cutting face. That is, bits may cut a crescent shape

  • Analytical hierarchy process for selection of roadheaders

    classified as full face and partial face machines according to the contact between the surface to be excavated and the cutting part of the machine. The roadheader, which is one of the partial face excavation machines, is being used widely in underground mining and tunnelling projects. A roadheader can be used for all types of gallery sizes and

  • Cutting performance evaluation of a roadheader machine by

    Feb 14, 2018· A roadheader machine is important mechanical equipment for roadway drivage through mechanical crushing. Through analysis and research to discover the key parameters relating to the cutting performance of the roadheader machine, the performance of the roadheader machine must be optimized and costs reduced, as well as productivity increased.

  • Mining Magazine - Roadheader - Page 1

    Carlson Machine Control integrates with Rototilt. Fleet At Barrick Gold's Cortez mine, the MH620 roadheader is cutting two new declines Fleet 10 MAY 2017. presented its newest roadheader, the MR341, to customers at an event in Zeltweg, Events 27 MARCH 2013.

  • Roadheaders for Tunneling - MT720 300 KW

    MT361 roadheader is an electro-hydraulic part-face cutting machine designed for roadway development and for coal, rock, gypsum, potash and salt mining. The special attachments and wide array of options, such as an integrated swivel chain conveyor, coupled with high tramming speed for relocation, make it ideal for a variety of mining and

  • Guide to tunnelling - Cross River Rail

    Roadheaders use their rotating excavating head with metal picks to cut rock. An Operator controls the machine from inside the cabin, while a Cable Spotter assists in moving the machine safely. Roadheader fast facts. A roadheader is 25 metres long end to end and weighs 115 tonnes. They are able to excavate 60 tonnes of rock per hour; A

  • ALPINE AM75 ROADHEADER

    The Alpine AM75 Roadheader is a boom-type part-face cutting machine, suitable for cutting rock of an unconfined compressive strength of up approx 100 MPa. The high pickup capacity of the loading assembly enables the storage of material so that it is possible to continue with cutting even during the change of shuttle cars.

  • Partial-face Excavation Machine - Herrenknecht AG

    Partial-face Excavation Machine (ø 11,770 mm) with two cross-bracing platforms, telescopic face plates in the crown and three flexible excavators. Safe in hard rock. Partial-face Excavation Machines with roadheader booms can also be used in geologies with up to 80 MPa compression strength.

  • Roadheaders - All the products on DirectIndustry

    MR341 roadheader is a part-face cutting machine designed for roadway development, as well as coal, rock, gypsum, potash and salt mining. This electro-hydraulic machine comes with special accessories and a wide

  • EBZ200(A) Roadheader

    EBZ200(A) boom-type roadheader is an integrated tunneling machine with cutting, lading and traveling functions. It is cantilever longitudinal cutting and part-section type, is used to cutting any underground section, and is also used in the highway, railway and water conservancy project.

  • EPIROC MOBILE MINER HARD ROCK CUTTING IS NOW A

    name part face cutting machines, and there have been attempts to classify these machines as boom mounted rock cutting machines (Prof G. Almgren). Well-known members in this family are Road Headers. So which features do we normally associate with a mobile miner? To make it mobile,

  • Industry The history of roadheaders - FAMUR PRO

    Jun 01, 2019· A roadheader is a machine intended for the excavation of underground headings, i.e. a machine which performs several functions within that process. A heading is an excavation characterised by considerable length in relation to its cross-section. These include various roadways, adits, crosscuts, drifts, inclines (sometimes shafts and staple pits

  • Roadheader MR340, MR360 - United Mining

    Roadheader MR340, MR360 (ATEX approved) Page 1 of 28 . Technical description-MR340 MR360 ATEX approved Specification.500.Rev1. The model MR360 is identical to the model MR340 with the only difference that it allows to cut a higher profile (see technical data and cutting

  • Enhances Mid-Range Roadheader Versatility E & MJ

    With a total weight of 80 mt, the MR341s dimensions are essentially the same as the previous machine. The total length is 11.2 m (36 ft 9 in.) while the width over the cutting table is 5.15.8 m (16 ft 9 in.19 ft) with the apron side flaps either retracted or extended.

  • MR341 200 KW Roadheaders For Mining,

    Asia Private Limited - Offering MR341 200 KW Roadheaders For Mining, in Pune, Maharashtra. Get best price and read about company. Get contact details and address ID: 20341403288

  • Motorcycle Boring Machine T8014A

    The products concerned include Engine Rebuilding MachineMetal Forming machineMetal Cutting Machine Learn More. AMCO T8014A Cylinder Boring Machines - Machine portable edge milling machine; MR341 roadheader is a part-face cutting machine; pneumatic bore well drilling machine

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    pneumatic sheet metal cutting machine; Pig head cutting split machine electric; MR341 roadheader is a part-face cutting machine; wikipediamine drill rock cutting tunnel boring crusher; mining parts cutting

  • coal mining roadheader equipment rock drill

    A roadheader, also called a boom-type roadheader, road header machine, road header or just header machine, is a piece of excavating equipment consisting of a boom-mounted cutting head, a loading device usually involving a conveyor, and a crawler travelling track to move the entire machine forward into the rock face.

  • Potash performance - Solid Ground : Solid Ground

    Jun 19, 2019· The pure power it has is whats fascinating, he says of the roadheader. And Id say the vibration, the way the machine functions, has improved as a result of the autonomous cutting. Before autonomous cutting, we used to cut three metres per shift. That was the efficiency with one truck.

  • Roadheader - Wikipedia

    A roadheader, also called a boom-type roadheader, road header machine, road header or just header machine, is a piece of excavating equipment consisting of a boom-mounted cutting head, a loading device usually involving a conveyor, and a crawler travelling track to move the entire machine forward into the rock face.

  • MR341 Roadheader MINING [Ground Construction

    MR341 Roadheader. MR341 roadheader is a part-face cutting machine designed for roadway development, as well as coal, rock, gypsum, potash and salt mining. This electro-hydraulic machine comes with special accessories and a wide array of options such as an integrated swivel chain conveyor, coupled with high tramming speed for

  • Upgrades Its Roadheaders Coal Age

    With a total weight of 80 mt, the MR341s dimensions are essentially the same as the previous machine. The total length is 11.2 m (36 ft 9 in.) while the width over the cutting table is 5.15.8 m (16 ft 9 in.19 ft) with the apron side flaps either retracted or extended.

  • Development of Position System of a Roadheader on a Base

    tunnels. Distinguish tunneling machines with selective and continuous destruction. Selective destruction roadheaders - the machine swept the executive organ with milling crown, equipped with, as a rule, cutting tool, ensuring the development of the face of any cross-sectional shape. The machines can be divided into three categories:

  • Boom-type roadheader - MR341 - Mining and Rock

    MR341 roadheader is a part-face cutting machine designed for roadway development, as well as coal, rock, gypsum, potash and salt mining. This electro-hydraulic machine comes with special accessories and a wide array of options – such as an

  • (PDF) Performance prediction of roadheaders using ensemble

    , the machine weight changes from 34 to 74 tons, the. power on cutting boom changes from 80 to 400 kW, and. the ICR values vary between 0.4 and 260 m. 3. /h. In total, 10% of roadheaders used

  • (PDF) NEW TECHNOLOGIES EXTEND THE RANGE OF

    Aimed at the complexity of the process of cutting coal rock in a roadheader, the cutting head of a part-face tunnel machine is studied. Based on the physical parameters determined by the uniaxial

  • The performance of a roadheader in high strength rock

    In the second stage of the research study, a big rock block taken from the tunnel face was subjected to full-scale rock cutting tests in the laboratory using a linear cutting machine. Cutter force and specific energy values were recorded for different depths of cut and cutter spacings and likely net cutting rate of the roadheader exca-

  • MR341 Cimertex

    Jul 13, 2020· MR341 roadheader is a part-face cutter machine designed for roadway development, as well as for coal, rock, gypsum, potash and salt mining. This electro-hydraulic machine has several special accessories and a wide range of options. Due to is powerful transversal cuttter head, this equipment is able to cut rock up to 100 MPa (UCS).

  • Boom-type roadheader - MR341 - Mining and Rock

    MR341 roadheader is a part-face cutting machine designed for roadway development, as well as coal, rock, gypsum, potash and salt mining.


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