Heat treating applications for batch furnaces, continuous pusher furnaces, belt furnaces, endothermic gas generators, rotary kilns, retorts, and pit carburizers. 

Pusher (continuous) Furnaces: Pusher furnaces commonly consist of several temperature control zones and also several carbon potential control zones. A typical installation will utilize Marathon's 10Pro temperature controllers for areas such as preheat and quench (where no carbon potential is controlled) and the DualPro or MultiPro instruments where control of both temperature and carbon is required. Magnum or Carbonseer oxygen probes are used to measure the carbon potential in each carburizing zone of the furnace.

Belt Furnaces: Belt (or mesh-belt) furnaces are generally outfitted with carbon probes (either the Magnum or the Carbonseer), Marathon's DualPro or CarbPro instruments, and 10Pro temperature controllers and over temps. Our 10 Pulse speed controller can be used for the main and temper belts.

Endothermic Gas Generators: Generators can be controlled either with a traditional carbon probe (like the Magnum or the Carbonseer) or can utilize the unique Sentinel Series. Marathon has several standard Generator Control packages available including small control panels.

Rotary Kilns/Retorts/Pit Carburizers: Depending on the process temperature, these units can be controlled using either a traditional carbon probe (like the Magnum or the Carbonseer), or they can utilize Marathon's unique Sentinel Series. Standard reference air panels can be provided in either case.