NX PIT-TYPE SERIES

Model	Diameter	Height	Load Capacity
NX-615	23½”(600 mm)	59″(1500 mm)	2200 lbs (1000 kg)
NX-620	23½”(600 mm)	78¾”(2000 mm)	2600 lbs (1200 kg)
NX-815	31½”(800 mm)	59″(1500 mm)	3300 lbs (1500 kg)
NX-820	31½”(800 mm)	78¾”(2000 mm)	3850 lbs (1750 kg)
NX-825	31½”(800 mm)	98½”(2500 mm)	4400 lbs (2000 kg)
NX-1015	39″(1000 mm)	59″(1500 mm)	4400 lbs (2000 kg)
NX-1020	39″(1000 mm)	78¾”(2000 mm)	5500 lbs (2500 kg)
NX-1025	39″(1000 mm)	98½”(2500 mm)	6600 lbs (3000 kg)
NX-1215	47¼”(1200 mm)	59″(1500 mm)	6600 lbs (3000 kg)
NX-1220	47¼”(1200 mm)	78¾”(2000 mm)	8400 lbs (3800 kg)
NX-1225	47¼”(1200 mm)	98½”(2500 mm)	9900 lbs (4500 kg)
NX-1230	47¼”(1200 mm)	118″(3000 mm)	11570 lbs (5250 kg)
NX-1625	61″(1550 mm)	98½”(2500 mm)	13200 lbs (6000 kg)
NX-1630	61″(1550 mm)	118″(3000 mm)	15400 lbs (7000 kg)
NX-1635	61″(1550 mm)	137¾”(3500 mm)	17600 lbs (8000 kg)
NX-1645	61″(1550 mm)	177″(4500 mm)	22000 lbs (10000 kg)

NOTE: Nitrex reserves the right to make changes without notice
For non-standard sizes, please contact Nitrex

Inconel 600 (refractory steel) retort and racking for long service life and non-reactive interaction with nitriding atmosphere.
Uniform temperature distribution obtained through independently controlled heating zones and intensive atmosphere circulation ensuring full control of nitriding potential in all stages of the process.
Light ceramic fiber insulation, reducing heat losses and thus energy consumption.
Kanthal long lasting heating elements.
Integrated cooling systems.
Larger furnaces may be equipped with a ‘Turbo’ cooler, for accelerated cooling of the load. This option is used where productivity is a major issue.
Preconfigured & factory-tested
Pre-tested for metallurgical results
Fully automated operation guarantees repeatable and consistent results
True Nitriding/Nitrocarburizing Process Control – Compliant with specifications AMS 2759/10 and AMS 2759/12
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

NITRIDING/NITROCARBURIZING SIMPLIFIED

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

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 flow for a cycle
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

ENJOY PEACE OF MIND

With our ‘set & 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, and cool) are automatically carried out sequentially in one uninterrupted cycle, without further operator intervention. This set-up provides a high degree of accuracy in process execution, contributing to consistency in nitriding / nitrocarburizing results.

AVAILABLE TECHNOLOGIES:

Nitreg® Potential-Controlled Gas Nitriding
Nitreg®-C Potential-Controlled Gas Nitrocarburizing
Nitreg®-S Potential-Controlled Gas Nitriding with In-Process Activation for Stainless Steels
Nano-S™ Potential-Controlled Gas Nitriding for Stainless Steels (with better corrosion resistance)
ONC® In-Process Post-Nitriding or Post-Nitrocarburizing Oxidation
Phase-Controlled Gas Nitriding and Nitrocarburizing


EFFLUENT NEUTRALIZER Assures a clean, environmentally friendly process	AMMONIA DISSOCIATOR Economical and safe supply of dissociated ammonia.	ACCELERATED COOLING Internal accelerated cooling system to reduce cooling time by 40% or more.	WATER COOLING SYSTEM Recirculates clean cooling water to prolong the longevity of furnace elements.

RACKING Easy-to-assemble Inconel baskets and trays constructed for safe and easy loading	WATER COOLING SYSTEM FOR ACCELERATED COOLING provides a controlled, stable supply of clean water to the cooling coils of the furnace’s accelerated cooling internal heat exchanger