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TDS-4SA TDS-8SA TDS-9SA TDS-10SA TDS-11SA NOV Varco top drive Top driveVarco, a subsidiary of NOV National Oilwell in the United States, is a company that develops top drives. It has developed more than 10 specifications of top drives. All products adopt electric drive types, including TDS-8SA, TDS-9SA, and TDS-10SA. And TDS-11SA top drive, adopt AC variable frequency electric drive type, AC motor; DC motor; TDS-9SA and TDS-11SA top drive use two AC motors. The top drive drilling unit consists of the following main components: Faucet-drilling motor assembly; Motor bracket/guide block assembly; Drill pipe make-up and breakout device assembly; balance system; cooling system; Top drive drilling unit control system; |
