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Gas Nitriding Furnace with Retort

Gas Nitriding Furnace with Retort

Aichelin Unitherm Gas Nitriding furnaces are designed for gas nitriding, gas nitro-carburising, bright annealing and thermal oxidation.

Product details

  • HeatingElectric/ Gas Heated
  • Furnace AtmosphereNH3 + N2 + CO2 / ENDO + H2
  • Gross Capacity 350 to 1800 Kg/batch.
  • ProcessesGas nitriding, Gas nitro-carburising, Bright annealing and Thermal Oxidation.
  • Plant AutomationiFACE, SCADA
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Gas Nitriding Furnace with Retort
Advanced Retort Type Nitriding Furnace

Aichelin Unitherm offers advanced Retort Type Nitriding Furnaces engineered for precision surface hardening through controlled gas nitriding and nitrocarburising processes. Designed to deliver superior metallurgical performance, exceptional process reliability and consistent product quality, these furnaces ensure uniform case depth, precise hardness profiles and enhanced surface properties across every batch.

Featuring a horizontally loaded, fully sealed retort design, the Aichelin Unitherm Retort Type Nitriding Furnace incorporates advanced atmosphere control though STANGE process controller, Hydrogen sensor and UPC mass flow meter. This enables highly reproducible heat treatment results, improved process efficiency and reliable performance for demanding industrial applications across a wide range of components and industries.

More Technical features

  • Horizontal loading sealed retort furnace design.

  • Sealed Retort made of SS310 / Inconel 800 options available.

  • Electrically heated with heaters and radiant tube located outside retort.

  • Special door design with bayonet locking system for precision sealing.

  • Special shape door seal without joint for effective sealing and safety.

  • NH3 + N2 + CO2 / ENDO + H2 atmosphere for Gas Nitriding and Gas Nitro-carburising.

  • Water / Steam atmosphere for post oxidation / Thermal oxidation.

  • Latest Nitriding potential process control system with H2 / O2 sensors and mass flow meters.

  • Option of automatic Kn control available through recipe program.

  • Temperature uniformity +/- 5°C with thyristor control.

  • Forced rapid cooling for shorter cycle times.

  • Computerized process monitoring and data logging.

Gas Nitriding Furnace with Retort
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Our Service & Support
Reliable service throughout your entire furnace lifecycle

We support our customers throughout the entire lifecycle of their furnaces – from commissioning to ongoing operation, modernization and digital integration.

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Frequently Asked Questions
FAQ – Aichelin Unitherm Gas Nitriding furnace
The furnace is designed for gas nitriding, gas nitro-carburising, bright annealing and thermal oxidation with precise atmosphere control.
Aichelin Unitherm Gas Nitriding Furnaces feature a horizontally loaded, fully sealed retort design with a geared brake-motor door drive, ensuring atmosphere integrity, stable process conditions, and highly reproducible nitriding results.
The system utilizes NH3, N2, CO2, Endogas + H2 for atmosphere for GasNitriding and Gas Nitro-carburising processes, along with water/steam for post oxidation, supported by advanced hydrogen sensors and mass flow meter.
The furnace features a specially engineered bayonet-locking door system combined with a joint-free sealing arrangement, ensuring excellent atmosphere tightness, enhanced operational safety and minimal process gas leakage. This robust design maintains process integrity throughout the heat treatment cycle while contributing to consistent and reproducible nitriding results.
How can we support you?

Let’s Discuss Your Heat Treatment Requirements!

We are happy to support you with questions regarding furnace concepts, processes or services. Our experts provide individual and practical advice.

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