Discover our solutions for downhole and topside applications


Explosion-proof motors and actuators
BLDC motor for potentially explosive atmospheres Zone 1 & 2
Special features:
• IECEx-certified solution with the option of scaling torque and speed
• Existing solutions as well as new customized developments
• Voltage up to 560V
• Certified and tested for ambient temperatures up to 80°C
Special features:
• IECEx-certified solution with the option of scaling torque and speed
• Existing solutions as well as new customized developments
• Voltage up to 560V
• Certified and tested for ambient temperatures up to 80°C
Maintenance & Service
• Customized maintenance plans
• Detailed documentation of condition and expected service life
• Regular maintenance of your drive through systematic replacement of wear parts
• Proactive approach prevents unplanned downtime and the risk of failure
• Detailed documentation of condition and expected service life
• Regular maintenance of your drive through systematic replacement of wear parts
• Proactive approach prevents unplanned downtime and the risk of failure

Zero-Speed Sensorless Control
Special features:
• None feedback system required
• Maximum torque from zero speed
• Position control from zero speed
• None feedback system required
• Maximum torque from zero speed
• Position control from zero speed

Small linear actuators (22 & 32 mm)
(e.g., flow control)
Special features:
• >350 F & 30K ambient conditions
• Shock and vibration-tested design
• Special winding for high temperatures and spinning
• Wide range of feedback systems, strokes, and spindle pitches
Special features:
• >350 F & 30K ambient conditions
• Shock and vibration-tested design
• Special winding for high temperatures and spinning
• Wide range of feedback systems, strokes, and spindle pitches

Small BLDC motor/actuator
(e.g., wireline applications)
Special features:
• Ambient conditions: >350 F & 30K PSI
• Shock and vibration-tested design
• Special winding for high temperatures and high spinning
• Wide range of gear ratios and feedback systems
• Hollow shaft as an option
Special features:
• Ambient conditions: >350 F & 30K PSI
• Shock and vibration-tested design
• Special winding for high temperatures and high spinning
• Wide range of gear ratios and feedback systems
• Hollow shaft as an option

Casingless BLDC motor
(e.g., alternator, MWD, wireline)
Special features:
• Rotor and stator as a kit
• High compactness
• High freedom of integration
• Shock and vibration-tested design
• Special three-phase winding for high temperatures and spinning
Special features:
• Rotor and stator as a kit
• High compactness
• High freedom of integration
• Shock and vibration-tested design
• Special three-phase winding for high temperatures and spinning

Brushless DC motor with pump interface
(e.g., rotary steerable system)
Special features:
• >350 F & 30K PSI environmental conditions
• Shock and vibration-tested design
• Special winding for maximum temperatures and high spinning
• Interface for microhydraulics (e.g., Bieri)
Special features:
• >350 F & 30K PSI environmental conditions
• Shock and vibration-tested design
• Special winding for maximum temperatures and high spinning
• Interface for microhydraulics (e.g., Bieri)

Subsea – electric actuators
WITTENSTEIN offers highly integrated mechatronic systems with extremely robust designs and high-precision calibrations specifically for processing and transporting oil and gas below the sea surface. Our valve actuators, which control many different types of valves, are an outstanding example of this.
The SSEAC® can be used for throttle, gate, and ball valves.
These actuators are optionally designed with redundancy and are used at depths of up to 3000 meters, with a service life of 25 years.





