ATEX Process Heater

The Ex-Machinery Electric Air Heater Ex-series are designed for the air heating process in gas or dust explosive environments.

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The Armadex electric air heater series are engineered and built for air heating methods in dust or gas explosive environments.

The heaters are engineered and built for optimal durability, with enclosed AISI 304 heater elements. Our heaters are suitable for the harshest environments.

The EAH-Ex product line provides simple, precise, and safe control of processing temperatures. It is perfectly suited for use in the food industry, chemical plants & the plastics industry.

All of our explosion proof heating systems come with the following:

  • ATEX Certification
  • Instructions For Use
  • Installation guidance for hazardous areas
  • Statement Of conformity Class 3G/D




Additional information


3.7 – 33kW


230 VAC, 50/60 Hz
400 VAC, 3Ph, 50/60 Hz

Temperature Accuracy

8°C(standard), 2°C PID control

Heater Technology

Stainless steel ASI304 elements filled with electrical grade magnesium


PID thyristor control


Smallest model: 500mm x 500mm x 500mm

Largest model: 750mm x 750mm x 1800mm


48 – 78kg

EU Directive

2014/34/EU (ATEX 114)

ATEX marking gas

3G Ex nAC IIC T2 Gc

ATEX marking dust

3D Ex tc h IIB T225°C Dc

Applied Standards

EN 60079-0; Explosive atmospheres – Part 0: Equipment – General requirements

EN 60079-15; Explosive atmospheres – Part 15 : Equipment protection by type of protection "n"

EN 60079-31; Explosive atmospheres – Part 31: Equipment dust ignition protection by enclosure "t"