600 HP Vertical AC Top Drive Motor

600 HP Vertical AC Top Drive Motor

The Only Heavy Duty 600 HP Form Wound Motor Designed for Top Drives.

In severe conditions, random wound motor failures are caused by a combination of several destructive factors including high VFD voltage spikes, excessive top drive vibration, rain and contamination (weather conditions), random windings (weaker than form wound) and overheating.

That’s why we designed and built the first heavy duty form wound 604 horsepower top drive motor with a better designed and engineered optional cleaning motor blower.

Gulf Electroquip DRILLMAX motors satisfy a wide range of applications within the oilfield industry. The GEQ DRILLMAX604 and the GEQ DRILLMAX664N Top Drive Motors were developed to meet required specifications of the IEC 60434.1 standards.

We listened to drillers and built a 600 HP top drive motor that works better and lasts longer.


  • Double the Seals
  • Air Cleaning Blower (Optional)
  • DOUBLE the Bearing System
  • Safer/faster Connection
  • Upgraded Power Circuit
  • Cast Aluminum Rotor
  • Form Wound Design
  • Double the Bearing System
  • Interchangeable with Existing Motors


  • Form windings contribute to longer motor life and more reliable motor service
  • Increased installation, operator and maintenance safety / convenience
  • Longer motor life resulting in minimizing downtime and lowering operating costs
  • Interchangeability with existing motors provides convenience and flexibility


  • Thermal Block
  • RTDs
  • Pinion
  • Brake Hub
  • Junction Box
  • Cable Connectors


  • Onshore Drilling Rigs (Top Drives)


  • Base Speed: 1164 RPM
  • Max Speed: 2417 RPM
  • Duty: (IEC) S1, Continuous
  • Maximum Current at Full Load: 595 Amps (Not to Exceed)
  • Efficiency: 93.9%
  • Number of Poles: 4
  • Full Load Torque: 2626 ft. - lbs.
  • Ambient Conditions: -40°C to +55°C with SCFM Cooling Air
  • Maximum Altitude: 1 Km (3300 ft.)
  • Connections: Buss Tab, Terminal Board, Flying Lead
  • Upper Bearing: Four Point Contact Ball Bearing
  • Lower Bearing: Cylindrical Roller Bearing
  • Enclosure: IP44
  • Color: Safety Yellow
  • Weight: Approximately 3000 LBS


  • Rated Output: 604 HP, 664 HP
  • Rated Voltage: 560V
  • Rated Frequency: 39.2 Hz
GEQ DRILLMAX600 Motor Dimensions

Performance Charts

Click on an image to view

Part Numbers

850044Lip Seal, PE Outer
850046Lip Seal, PE Inner
254869Lip Seal, OPE Inner
254876Lip Seal, OPE Outer
850657Labyrinth Seal, OPE Outer
255331Bearing, OPE Ball
287050Bearing, PE Roller
264590Heater, 110-265V, 80 Watt
850054Cover, PE Exhaust
265422Terminal Block, Auxiliary, 12 point
265379Distribution Block, Power Leads
850311Lead Connection Kit (Block)
850310Flying Lead Connection Kit (6 ft.)
214951Fitting, Grease
204951Fitting, Grease Vent
255318Grease, Black Pearl
266105Hub, Brake

Compatible Products


DrillMax 600 Brochure
Product Brochure