• Marine industry
  • Rolling stock
  • Construction machines
  • Forklift truck
  • Commercial vehicles in general

Reference solutions

Customer: Marine
Medium: Air/exhaust gases
Output: 35 kW
Temp.: 650°C
Customer: Marine
Medium: Exhaust gas
Output: 75 kW
Temp.: 650°C

Product features:

  • High thermal efficiency of up to 700°C
  • Compact design for easy installation and maintenance
  • Good controllability of the heater
  • Reliable and economic regeneration by controlled electric heating
  • Vertical and horizontal installation possible


Exhaust gases generated during the combustion process of diesel and heavy oil engines contain soot particles, carbon monoxide, nitrogen oxide and hydrocarbon. Since these are extremely harmful to health, statutory provisions and standards at international level increasingly demand that these are purified before being released into the environment. These tasks are carried out by exhaust gas purification systems which are mostly based on filter and catalyst technology.

During the filter process, however, the soot particles continue to clog the filter and reduce its absorption capacity. The filters are burned out for regeneration. This process requires a certain temperature level and happens, at best, automatically with the help of the exhaust gases. However, the temperature level of the exhaust gases is often insufficient for smaller or moderately polluted engines.

When the pressure rises, an electric heater is connected in front of the exhaust filter, increasing the exhaust gas flow to the required temperature level again. Electric air heaters in the form of duct air heaters, tubular air heaters or flanged air heaters can be used for this purpose up to a temperature of 700°C.

We have been successfully engaged in electric heat technology for more than 25 years and have internationally developed and manufactured reference solutions for the chemical, mechanical and plant engineering industry. We specify and manufacture our products according to international standards (DGRL 97/23/EC, AD2000, EN 13455, ASME) and, if required, with approval by TÜV/GL/DNV etc.