Nitriding & carbonitriding furnace

The CCN nitriding furnace is designed to perform nitriding, nitrocarburizing (including Ferritic Nitrocarburizing / FNC) and low pressure carbonitriding on a single installation, with no compromise on treatment quality. Its cold-wall, graphite-free design makes it particularly well suited to heat treatment shops and subcontractors looking for precise process control, low energy consumption, and easy day-to-day operation.

Unlike furnaces built around graphite heating elements, this nitriding furnace relies on vacuum-formed fiber insulation combined with NiCr 80/20 heating resistors.

This cold-wall design eliminates the carbon-contamination risks associated with graphite, reduces the chamber’s thermal inertia, and lowers the maintenance typically required by graphite component wear.

The result: more stable cycles, simpler upkeep, and tighter control of the treatment atmosphere, a key factor for repeatable, consistent case layers.

• Design: cold-wall technology, graphite-free (vacuum-formed fiber insulation, NiCr 80/20 heating elements).
• Load size: 1000 x 610 x h750 mm (39.4 x 24 x 29.5 in).
• Working temperature: 400°C to 1000°C (752°F to 1832°F), thermal uniformity ≥650°C ±6°C / ≥850°C ±3°C (≥1202°F ±11°F / ≥1562°F ±5°F).
• Working pressure: atmospheric pressure and rough vacuum.
• Compatibility with modular systems: The CCN is a cell that integrates into ECM Technologies’ existing modular lines (FLEX or JUMBO), enhancing their processing capabilities.

• Process time savings : the absence of graphite-related thermal inertia speeds up heating and cooling ramps, shortening overall cycle time.
• Lower energy consumption : vacuum-formed fiber insulation limits heat loss and reduces power draw per cycle.
• Easier maintenance : a graphite-free design removes the upkeep typically required by this type of material and simplifies servicing.
• Modularity & scalability : the CCN furnace fits into a modular system, allowing the installation to grow (additional cells, higher capacity) without redesigning from scratch.
• Improved productivity : shorter treatment cycles thanks to a fast ramp up and cooling in hidden time

The CCN furnace covers the full range of thermochemical surface treatments commonly used in general mechanical engineering and industrial heat treatment:

• Nitriding (nitrogen diffusion in the ferritic phase to harden the part’s surface with minimal distortion)
• Nitrocarburizing, including Ferritic Nitrocarburizing (FNC) (combined nitrogen and carbon input to improve wear and fatigue resistance)
• Carbonitriding (the nitriding stage is performed directly in the CCN furnace; combined with a graphite cell, it can be followed by the carburizing stage)
• Dry oxidation (forms a protective oxide layer, used as a complement or a final process step).

The furnace also includes 150 kW convection heating, ensuring even temperature distribution across the full load.