MOBILE PLANT COSTING

THE PAPER CONSIDERS IN DETAIL THE VARIOUS COST FACTORS ASSOCIATED WITH MOBILE PLANT USED BY THE SURFACE EXTRACTIVE INDUSTRY. IT IS STATED THAT THE AIM SHOULD BE TO ACHIEVE LOWEST UNIT COST OF OPERATION AT THE OPTIMUM REQUIRED OUTPUT; IF THE OUTPUT POTENTIAL IS FIXED, THE OPTIMUM ECONOMIC WORKING LIFE CAN BE ESTIMATED BY CAREFUL CONSIDERATION OF THE FACTORS INVOLVED. THE FOLLOWING FACTORS ARE DISCUSSED IN DETAIL: COST OF OWNERSHIP, INCLUDING CAPITAL COST, INTEREST CHARGES AND DEPRECIATION; RESIDUAL VALUE AFTER USE WHICH VARIES WITH THE WAY IN WHICH IT IS SOLD; COST OF MECHANICAL MAINTENANCE AND OVERHAUL WHICH SHOULD BE LESS THAN THE OWNERSHIP COSTS BUT IF MISMANAGED CAN BE THE GREATEST SINGLE COST FACTOR (NOTES ARE GIVEN ON WAYS OF REDUCING MAINTENANCE COSTS); COST OF REPLACING WEARING PARTS SUCH AS EXCAVATOR BUCKETS AND WIRE ROPES; COST OF FUEL AND LUBRICANTS-ATTENTION IS DRAWN TO THE INCREASED COST WHEN PAYING DUTY ON FUELS WHEN THE EQUIPMENT IS USED ON A PUBLIC HIGHWAY; COST OF LABOUR; COST OF THE MAINTENANCE DEPARTMENT INCLUDING STORES AND WORKSHOPS; AND FINALLY, COMPANY, OVERHEAD CHARGES WHICH VARY WITH DIFFERENT COMPANIES. THREE APPENDICES GIVE DETAILED EXAMPLES FOR TWO SIZES OF DRAGLINE AND A LOADING SHOVEL.

  • Corporate Authors:

    Quarry Managers Journal Limited

    62-64 Baker Street
    London W1M 2BN,   England 
  • Authors:
    • Crane, J
  • Publication Date: 1970-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00081934
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Apr 8 1975 12:00AM