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top drive meaning

"top drive" in a sentence

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  • [Oil and gas]
    A device similar to a power swivel that is used in place of the rotary table on a drilling rig to turn the drill stem. Hung from the hook of the traveling block, a top drive also suspends the drill stem in the hole and includes power tongs. Modern top drives combine elevators, tongs, swivel and hook.

Examples

  • 9 maximum lifting capacity of top drive power head 45 kn
  • 9 maximum lifting capacity of top drive power head 30 kn
  • 10 maximum thrust force of top drive power head 30 kn
  • 10 maximum thrust force of top drive power head 15 kn
  • 8 maximum lifting capacity of top drive power head 30 kn
  • Maximum thrust force of top drive power head 15 kn
  • 6 output torque of top drive power head 3200 nm
  • 6 output torque of top drive power head 2500 nm
  • 6 output torque of top drive power head 2000 nm
  • 6 output torque of top drive power head 3500nm
  • More examples：  1  2  3  4  5

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What is the meaning of top drive and how to define top drive in English? top drive meaning, what does top drive mean in a sentence? top drive meaning，top drive definition, translation, pronunciation, synonyms and example sentences are provided by eng.ichacha.net.