High Temperature & Pressure AC Induction Motors

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Ducommun’s AC induction motors for downhole drilling and gas exploration are used worldwide by prime oil service companies. The performance of our highly reliable motors has been continuously improved over the last 20 years to provide unsurpassed lifetimes in extremely harsh operating environments at high temperatures-high pressures (HTHP) up to 232°C (450°F) and 2068 bar (30,000 psi).

The motors are available from size 15 (OD 1.5”) to size 38 (OD 3.8”).

Our latest developments of high efficiency motors provide additional reliability for the increasingly demanding downhole drilling environment.

The success of high temperature/pressure motors frequently requires units with exceptionally long and thin motor designs from 1.5” dia x 9“ long to 3.7” dia x 14“ long without gear heads. Ducommun has invested to acquire the required tooling and expertise to routinely meet these requirements.

Features & Benefits
  • High Temperatures-High Pressures (HTHP) up to 232°C (450°F) and 2068 Bar (30,000 psi) ambient temperature
  • High efficiency design to support lowest temperature rise at downhole operation
  • Single phase AC motor
  • High starting torque
  • 115 to 600 Volts, 60-400 Hz
  • Qualified while immersed in Hydraulic Oil Per MIL-H-83282C

Applications include
  • Oil & gas exploration tools
  • Rotary Steering Systems (RSS)
  • Measurement While Drilling (MWD)
  • Logging While Drilling (LWD)
  • Tractor tools
  • Completion tools
  • Formation testing tools
  • Hydraulic pumps
  • Actuators

  • Designed with Gear Heads
  • Designs with feedback devices
  • 3 phase designs
  • Custom Designs


Part Number Configuration

The following part number configurations are based on current configurations. For custom design solutions, please contact Ducommun at 310.513.7200 or by email at .

Download Outline Drawings

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