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  • Users: KKasin
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  1. KKasin

    Change hydraulic motors in rotary unit for multipurpose drilling rig

    Hi At my work we have just purchased a drilling rig that has a hydraulic powered rotary unit. The unit has two hydraulic motors, that can be run in series for high speed low torque mode, and in parallell for low speed high torque mode attached to the same shaft. The high speed is used for...

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