Direct Drive Motor

Published: January 31, 2018 | Last updated: July 5, 2023

What Does Direct Drive Motor Mean?

A direct drive motor is a mechanism in which the permanent-magnet synchronous motor directly drives and transmits the load to the drill bit (as in the case of horizontal directional drilling with a prairie dog drill). This mechanism results in a more efficient drilling operation due to the elimination of transmitting components such as belts and gearboxes.


Trenchlesspedia Explains Direct Drive Motor

The principles of the direct drive mechanism make it ideal for drilling machines such as horizontal drilling equipment. Since the power comes directly from the motor to the drill bit, the need for secondary components such as belts, chains, gearboxes etc. found in conventional motors is eliminated. In addition, the reduction of moving parts results in less energy wasted in the form of friction, heat and sound.

Other advantages of the direct drive motor include:

  • Increased cost optimization
  • High dynamic performance
  • Significantly increased torque to power ratio
  • Faster and precise positioning
  • Longer component serviceability life

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