• Electric motor and generator repairs up to 1000 HP AC or DC
  • 4000 Vac and 650 Vdc testing capabilities
  • Pump repairs: centrifugal, sump, sewage, positive displacement
  • All repairs meet Easa’s guidelines ANSI/EASA AR100- 2015- recommended practice for the repair of rotating electrical apparatus and guidelines for maintaining motor efficiency during rebuilding
  • Dynamic balancing up to 5000 pounds 9 feet long and as small as 1 pound
  • Installation of grounding rings to prevent premature bearing failure due to bearing currents causing fluting from variable frequency drives
  • High end brand name bearings including insulated or ceramic bearings for variable frequency drive use
  • Pick up and delivery services up to 9000 pounds with a five-ton 8×10 flatbed truck
  • All motors have a unique motor ID serial number in our state of the art ERP system for future tracking
  • Gearbox repairs
  • Crane motors repairs
  • Electromechanical brake repairs and rewinds




  • Superior Essex Wire Ultra Shield plus inverter duty magnet wire, Class H insulation
  • All rewinds are done with Class H material (Slot Liners, Phase Insulation, Top Sticks)
  • All Rewinds are dipped in Elan Guard EM59-60MR Epoxy varnish with extreme high bonding strength (Environmentally friendly with 0, VOC)
  • Baker D12R Surge Tester
  • Samatic Automatic winding machine
  • Lexeco L-25000 Core Loss Tester to ensure the integrity of the iron core for efficiency
  • Beldin Lead Wire High Heat 200 Degree C – CSA-SEW2
  • Armature Rewinds
  • Field Coil Rewinds
  • Servo Motor Rewinds
  • Clutches, Brake Coils, Solenoids, Epoxy Encapsulated Coils, Magnets
  • Stator Re-stacks if the iron core is damaged
  • Redesign (Voltage Changes, Speed Changes)
  • Extreme VFD Applications





  • Full inhouse Servo Repair Lab with positive airflow clean room.
  • Fully trained staff for diagnosis, Repair, Sourcing replacement motors, drives and parts.
  • Portable testing equipment to test servo motors, Encoders and resolvers.
  • All motor work is repaired in house ensuring your motor is not shipped to a third party for repair causing excess downtime.
  • In house OEM Drives onsite to perform factory drive tests on servo motors and various aftermarket test sets.
  • Typical brands are Fanuc, Bosch Rexroth (Indramat) Allen Bradley (Rockwell), Electrocraft, Yaskawa (Motoman), ABB, Mailor, Siemens, Baldor, Parker, Pacific Scientific, Kollmorgen, Reliance, Elwood, CMC, Mitsubishi.
  • Over 25 Years of combined servo experience with servo feedback devices and data collection to assist in future repairs and ensuring quality repair with proper historical data.


Our in-house machine shop reduces downtime, saves money, and avoids the need for a third party company

  • CNC Mill
  • 8 foot lathe
  • Broaching Keyways
  • Shaft Repairs
  • Shaft Alignment
  • Custom Shafts
  • Sleeve Housings
  • Custom Parts


Aegis Shaft Grounding Rings


The AEGIS PRO Series design provides reliable shaft grounding for large AC and DC motors, medium voltage applications, generators, and turbines to divert harmful shaft voltages to ground and extend bearing life. Install the AEGIS PRO on the DE and insulate the bearing on the opposite end (NDE) for best results. Large motors and generators often have much higher induced shaft voltages and bearing currents.

aegis grounding ring


AEGIS Bearing Protection Handbook

AEGIS Shaft Grounding Best Practices for New Motor Design, Motor Repair,
Engineering Specifications, Shaft Voltage Testing, and Bearing Inspections



At Ampro Electric we work as a team united
to get the job done safely. Let’s work together.