Explosion-Proof Electric Motion Control Products

Moog's range of products for hazardous environments includes Servomotors and Electro-Mechanical Actuators. Many of these explosion-proof products are ATEX and TIIS certified and so that they can be customized for your particular requirements.

Explosion-Proof Servomotors:

(G493 and G495)

Moog has special explosion proof rated brushless Servomotors in size 3 and size 5.

  • Flameproof Housing: Proven capability to withstand internal explosions without bursting or allowing ignition to reach outside the servomotor frame.
  • Compact Design: Through the use of high-energy magnets, high fill factor stators, and a thermally efficient aluminum case these servomotors are among the industry's highest power density. The compact design increases design flexibility by allowing you to put power where you need it.
  • High Dynamics: Combining the high power density package with a low inertia rotor allows this series of servomotors to deliver rapid load acceleration and acceleration to reduce move time.

Summary specifications for the range of size 3 servomotors (G493 series):

  • Continuous Stall Torque from 0.60 Nm to 3.70 Nm
  • Peak Stall Torque from 1.50 Nm to 13.00 Nm
  • Nominal Speed from 8800 rpm to 3900 rpm

Summary specifications for the range of size 5 servomotors (G495 series):

  • Continuous Stall Torque from 5.80 Nm to 25.00 Nm
  • Peak Stall Torque from 12.20 Nm to 60.00 Nm
  • Nominal Speed from 4800 rpm to 2200 rpm

Linear and Rotary Electro-Mechanical Actuators:

This linear explosion proof actuator for the power generation market was customized for a particular customer from our MaxForce 880 line of Electro-Mechanical Actuators. This product fully integrates a Moog servomotor with our linear actuator to provide a compact, efficient design. This linear Electro-Mechanical Actuator (885-007A) manipulates the linear process control valve that controls fuel flow in power turbine parts.

Summary specifications for the Linear Electro-Mechanical Actuator 885-007A

  • Speed at rated force: 11 in/s (280mm/s)
  • Continuous Force: 400 Lbf (1.8 KN)
  • Peak Force Capability: 800 Lbf (3.6 KN)
  • Back-drive Force: 35 Lbf (156 N)
  • Temperature Range: -40°F to 180°F (-40°C to 82°C)
  • Certifications: ATEX & CSA
  • Power: 90-150 VDC

The Rotary Electro-Mechanical Actuator (880-018) controls rotary control fuel valves in a hazardous environment. Its compact integrated approach is specifically designed for high temperature environments.

Summary specifications for the Rotary Electro-Mechanical Actuator 880-018

  • Peak Speed: 12000°/sec (2000 rpm), limited by controller to 200°/sec at 30 in-Lbf (3.39 Nm) load
  • Continuous Torque: 55.5 in-Lbf (6.3 Nm)
  • Peak Torque: 158 in-Lbf (17.8 Nm)
  • Gear Ratio: 4:1
  • Backlash: up to 3 Arc Min
  • Back-drive Torque: 13 in-Lbf (1.5 Nm)
  • Temperature Range: -40°F to 180°F (-40°C to 82°C)
  • Certifications: ATEX & CSA
  • Power: 90-150 VDC

Electric Inlet Guide Vane (EIGV) Servoactuator:

Designed for small aeroderivative turbines, this is an example of an explosion-proof product that has been highly customized for a specific application.

  • With this electric solution the customer has eliminated various hydraulic plumbing issues including leaks, maintenance costs and cleanliness. This actuator also utilizes our brushless servomotor technology with the highest power density in the industry
  • Moog integrated ballscrew and rotor design yields compact size and excellent dynamics due to reduced inertia. This also leads to better reliability due to the elimination of couplings and redundant bearings
  • The Moog integrated electrical housing allows for ease of installation and maintenance

Summary Specifications

  • Nominal working load: 1.4kN
  • Peak working load: 4.5kN
  • Environmental Temp: -20°C to 80°C
  • Power Supply: 24 VDC nominal


Moog's Servomotors and Servoactuators for use in hazardous environments can be found in applications such as enameling, chemical, and turbine industries.

Moog also have a full line of servodrives that will complement the above explosion-proof electro-mechanical actuators. They are designed to fully integrate and enhance your application's total performance.