ESP PM Motors

Keeping Your Production at Peak Performance

Reynolds Lift Permanent Magnet Motors

SmCo Motors™

esp-pm-inset.pngReynolds has engineered and manufactured Permanent Magnet Motors (PMM) offering significant advantages over traditional induction motors. Our unique and proprietary magnets, winding, and modular connections promote very short overall lengths, large power densities, efficient power outputs, and sizing specifically for your application. Ultra-efficiency over a wide operating range lowers power consumption, reduces motor winding temperatures, and increases run life compared with conventional induction motors. All motors are engineered, manufactured, and tested in our Texas manufacturing facility.

  • Patented modular Permanent Magnet Motor design
  • Deliver more downhole horsepower
  • Industry’s only repairable ESP motor
  • Produce more wells with the same available grid power
  • Reduce rig times compared with induction motors
  • Eliminate scale buildup with more casing clearance for CT lines
  • Runs on existing drive (VSD) assets

Fun Facts

Reynolds PMM: Designed, machined, wound & built 100% in Texas

The first motor custom engineered especially for Permian Basin applications


Features and Benefits

  • Highest power density PMM motor up to 600HP in 399 and 1200HP in 519
  • High temperature winding insulation improves reliability and run life
  • Reduced motor winding temperatures at operating conditions
  • During ESP cycling events resulting from surface power issues and pump gas locking, full motor torque available at startup and no large inrush or starting current which promotes long run life
  • Configurable to various pothead requirements, output shafts, flange connections, etc.
  • Universal base for connection to downhole sensor
  • Stainless steel construction with other customizable options as desired

General Motor Characteristics

  • Patented permanent magnet motor design
  • Efficiencies > 92% over wide operating range
  • Power Factor > 97% over entire operating range
  • Winding Temperature Rating: 450°F
  • Synchronous speed machine – no slip


Massive Improvements Over Legacy Induction Motors
Power Density Increases


Overview of Motor Technology


Save Rig Time: Eliminate Unreliable Rig-Floor Connections - Reynolds' Modular Motors are Factory Connected Ready to RIH!

  • 5kV insulation tests are performed at 15 discreet steps during winding process
  • Module-to-Module electrical connections made by expert factory assemblers in access-restricted, climate-controlled clean room facility
  • After connection, motors are assembled and tested to 100% load using Reynolds' in-house Dyno facility
  • Customer specifies (or provides) required seal (protector) AND sensor design to Reynolds
  • Seal and sensor are bolted to motor and assembly is vacuum oil filled with requested type
  • Motor is delivered with seals and sensor connected, tested and factory warrantied ready to run in the hole

Reynolds Lift Manufactures in Texas

Existing Facility -South Houston Manufacturing Facility

  • 48,000 sq. ft. combined CNC, motor winding, and assembly manufacturing space

OEM for Permanent Magnet Motors

  • 100% Made in Texas
  • Proprietary manufacturing processes tightly controlled and monitored to ensure quality of output
  • Engineering supports all manufacturing efforts

Advanced motor dyno tests every system to full load prior to shipping


Industry's Most Compatible PMM


  • Bolt on motorhead customized for every pump OEM
  • Universal sesnor base customized for every sensor type
  • Compatible with all HP configurations of 399 and 519 PMMs

PMM Coupling

PMM Coupling

  • Industry’s only solution for coupling multiple PMMs together to allow perfect alignment between rotor and stator
  • Legacy technology has long lengths which limits maximum horsepower output in induction and permanent magnet motors


  • One piece rotor construction maximizes torsion stiffness to allow full power output from every module
  • Allows for industry’s highest power density


  • Grounding ring eliminates voltage differences between rotor and stator which prevents bearing failures
  • No solution exists for legacy motors and failures are very difficult to prevent


Casing Clearance Comparison