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  • What is a drag line? - The Risk of Phosphate Mining

    Dragline OperationsDragline LimitationsMultiple Stripping SequencesIn a typical excavation cycle, the bucket is positioned high above the material that is being stripped. The bucket is then lowered down and the drag cable is drawn so that the bucket is dragged along the ground surface, digging ever deeper, as the bucket draws near the main body of the dragline at end of the cycle. Using the hoist cable system, the bucket is then lifted. A swing operation is then performed using the main body of the dragline to pivot on the carrier axis in order to move the h...
  • What Is A Drag Line In Mining - metzgerei-graf.de

    Drag Line Excavator Dropsa. Dropsa has plenty of experience with mobile lubrication.This case study shows a typical system for a walking excavator.This excavator is in siberia, russia so the lubrication system is in a very harsh and cold environment.Walking excavator is used in theopen pit mining sector.

  • Dragline Definition of Dragline at Dictionary

    Dragline definition, a rope dragging from something; dragrope. See more.

  • What Is A Drag Line In Mining - atrakcyjneimprezki.pl

    What Is A Drag Line In Mining. Amerigear rigid special overhung moment coupling is used for head pulley conveyor connection to motor gearbox drive package amerigear couplings also transmit very high torque at low speeds in a small envelope between the driven sheave assembly and the cr

  • What Is a Dragline and What Does It Do? - Articles

    A dragline system is an unusually large land machine that is used in civil engineering, strip mining, and excavation. The larger types of drag line excavators are used in strip mining operations to extract phosphate rock. These are among the largest types of mobile equipment and can weigh upwards of

  • Draglines - Coal Education

    2018-1-4  A large dragline system used in the open pit mining industry costs approximately $50-100 million, and weigh in the vicinity of 2000 metric tonnes, draglines are among the world's biggest machines. The behemoth earthmovers are made in Milwaukee by PH Mining Equipment Co. and Bucyrus International Inc.

  • PwC Australia

    2015-9-15  PwC Australia

  • Dragline Excavator Types uses working Principle ...

    Dragline falls in heavy equipment’s category. Dragline excavator is used for civil engineering projects and surface mining. Dragline is the largest equipment ever built on this planet. It has the ability to excavate very deep down the earth. Word drag is used because it has the ability to drag material at far distance from the machine.

  • Largest Dragline in the World Biggest Dragline Ever

    Mining operations have a long and complex history, with several giant machines being built in their heyday that still holds world records! One such dragline bucket excavator holds the record for largest dragline in the world, even though the machine has been out of operation for nearly 30 years!

  • Digging big - the world’s biggest draglines

    The dragline has a base diameter of 18m and working weight 3,420t. The maximum dumping height and digging depth of the ESH 30.110 are 46.2m and 53m respectively. The dragline is equipped with three 1,120kW drag motors, three 1,120kW hoist motors, and three 600kW swing motors. The maximum suspended load of the dragline is 95,000kg.