The NXL multi-chamber continuous gas nitriding/nitrocarburizing furnace is based on flexible and scalable process modules as a means of increasing the system’s capacity and adaptability to technological, application, and productivity demands. The NXL is offered in standard and custom sizes and configurations to suit unique needs with regard to parts dimensions, productivity and metallurgical requirements.

The flexible NXL system is easily adaptable to different levels of manufacturing automation from semi to full and lights-out operations.

To discuss your nitriding and nitrocarburizing furnace requirements, please fill out our “Request a Quote” form.

Model Working Space ( W x H x L ) Load Capacity
NXL-9912 35½”x 35½”x 47¼”
900 x 900 x 1200 mm

3300 lb.
1500 kg

NXL-9918 35½”x 35½”x 71
900 x 900 x 1800 mm
3970 lb.
1800 kg
  • Inconel 600 (refractory steel) retort and racking for long service life and non-reactive interaction with nitriding atmosphere
  • Light fiber insulation reduces heat losses and thus energy consumption
  • Efficient internal recirculation ensures uniform process atmosphere
  • Heating system provides exceptional temperature uniformity throughout the workload
  • Highly economical solution for just-in-time high-volume production
  • Modular design for flexibility in multi-stage processes, customized configurations to suit any given application
  • Modular, flow-through design provides 30-40% energy savings compared to batch furnaces
  • TurboCooling module shortens cooling times and improves furnace utilization rates
  • Easy integration into production flow
  • Preconfigured and factory-tested
  • Pretested for metallurgical results
  • Fully automated operation guarantees repeatable and consistent results
  • True Nitriding/Nitrocarburizing Process Control – Compliant with AMS 2759/10 and AMS 2759/12 standards
  • Superior case properties per customer specifications
  • Various case configurations possible
  • Repetition of results
  • System for data archiving and reporting as well as remote diagnostics
  • SCADA connectivity
  • Clean, environmentally-friendly processes powered by Nitrex effluent neutralizers


The Nitrex process control system is a product of extensive R&D in process automation and enables accurate process execution and consistent results. The entire nitriding/nitrocarburizing process is automatic, self-adjusting and operator-independent.

This expert system monitors and responds to changes in nitriding conditions by regulating the following parameters and operating functions:

  • Furnace heating functions such as process temperature, and overheat control with automatic emergency procedures
  • Atmosphere composition and cycle flow
  • Nitriding atmosphere ratios
  • Nitriding Potential KN (dissociation rate, for customer defined cycles)
  • Temperature for each process stage
  • Gas pressure inside the retort
  • Gas recirculation
  • Execution of the cooling stage and shutdown
  • Cooling water
  • Process safety features



With our “set and forget” process, the user selects the desired recipe from a library of researched and tested recipes and initiates a process. From there, all stages of the nitriding cycle (e.g., purge, heat, process control, cool) are automatically sequenced in one uninterrupted cycle, without further operator intervention. This setup provides a high degree of accuracy in process execution, contributing to consistency in nitriding/nitrocarburizing results.