- P-SERIES -

P-SERIES

The P-SERIES is part of the NITREX portfolio of nitriding / nitrocarburizing systems and is designed primarily for commercial heat-treating companies.

P-SERIES takes advantage of the best-of-class Nitrex nitriding / nitrocarburizing furnaces and features flexible controls based on United Process Controls’ PROTHERM™ controllers, which are capable of running the most advanced user-configured recipes with % Diss, KN, KC and KO setpoints to meet AMS 2759/10 and 2759/12* specifications. PROTHERM™ controllers are feature-rich and offer easy connectivity to the PROTHERM™ 9800 Production Management Software or to third party SCADA systems. The integrated recipe builder allows the user to design a recipe by configuring process parameters such as % Diss, KN, KC, KO, temperature, atmosphere mixtures, furnace pressure and more.

The P-Series opens new vistas for expert users looking to leverage and support their in-house recipe development and process design capabilities.

The P-Series is available in three different batch furnace types – NXKP, NXHP, and NXP.

The multipurpose NXKP series is a compact and economical choice for use in small-scale processing as well as for process development purposes. The heavy-duty NXHP and NXP series provide flexibility for a wide range of applications from small to high volume batch processing.

Furnaces are designed to have fast heat-up and cooling rates, as well as uniform temperature and atmosphere throughout the work zone. By incorporating multiple controlled heating zones, temperature uniformity inside the retort is +/-5°C (9°F) or better

NXKP SERIES COMPACT FURNACES
Standard Sizes †
Model Diameter Height Load Capacity
Working Zone
Dimensions
NXKP-409

15¾” / 400 mm 35½” / 900 mm 660 lbs / 300 kg
Working Zone
Dimensions
NXKP-412 15¾” / 400 mm 47¼” / 1200 mm 880 lbs / 400 kg
Working Zone
Dimensions
NXKP-609 23½” / 600 mm 35½” / 900 mm 1300 lbs / 600 kg
Working Zone
Dimensions
NXKP-612 23½” / 600 mm 47¼” / 1200 mm 1700 lbs / 800 kg
Working Zone
Dimensions
NXKP-812 31½” / 800 mm 47¼” / 1200 mm 2200 lbs / 1000 kg
NXHP SERIES HORIZONTAL FURNACES
Standard Sizes †
Model Dimensions (W x H x L) Load Capacity
Working Zone
Dimensions
NXHP-669 23½” x 23½” x 35½”
600 x 600 x 900 mm
1300 lbs / 600 kg
Working Zone
Dimensions
NXHP-6612 23½” x 23½” x 47¼”
600 x 600 x 1200 mm
1700 lbs / 800 kg
Working Zone
Dimensions
NXHP-9812 35½” x 31½” x 47¼”
900 x 800 x 1200 mm
2200 lbs / 1000 kg
Working Zone
Dimensions
NXHP-9818 35½” x 31½” x 71”
900 x 800 x 1800 mm
3330 lbs / 1500 kg
NXP SERIES PIT FURNACES
Standard Sizes †
Model Diameter Height Load Capacity
Working Zone Dimensions NXP-615 23½” / 600 mm 59” / 1500 mm 2200 lbs / 1000 kg
NXP-620 23½” / 600 mm 78¾” / 2000 mm 2600 lbs / 1200 kg
NXP-815 31½” / 800 mm 59” / 1500 mm 3300 lbs / 1500 kg
NXP-820 31½” / 800 mm 78¾” / 2000 mm 3850 lbs / 1750 kg
NXP-825 31½” / 800 mm 98½” / 2500 mm 4400 lbs / 2000 kg
NXP-1015 39” / 1000 mm 59” / 1500 mm 4400 lbs / 2000 kg
NXP-1020 39” / 1000 mm 78¾” / 2000 mm 5500 lbs / 2500 kg
NXP-1025 39” / 1000 mm 98½” / 2500 mm 6600 lbs / 3000 kg
NXP-1215 47¼” / 1200 mm 59” / 1500 mm 6600 lbs / 3000 kg
NXP-1220 47¼” / 1200 mm 78¾” / 2000 mm 8400 lbs / 3800 kg
NXP-1225 47¼” / 1200 mm 98½” / 2500 mm 9900 lbs / 4500 kg
NXP-1230 47¼” / 1200 mm 118” / 3000 mm 11570 lbs / 5250 kg
NXP-1625 61” / 1550 mm 98½” / 2500 mm 13200 lbs / 6000 kg
NXP-1630 61” / 1550 mm 118” / 3000 mm 15400 lbs / 7000 kg
NXP-1635 61” / 1550 mm 137¾” / 3500 mm 17600 lbs / 8000 kg
NXP-1645 61” / 1550 mm 177” / 4500 mm 22000 lbs / 10000 kg

 

The PROTHERMTM series of controllers enable flexible and convenient control of a Nitrex batch-type furnace, providing the ability to run, monitor, record, and archive even the most complex nitriding or nitrocarburizing processes. PROTHERM™ regulates all furnace functions, nitriding / nitrocarburizing cycles with % Diss, KN, KC, and KO setpoints, as well as alarms and maintenance tasks.

Rich features like live trending, built-in data logging, integrated web server, SCADA connectivity, as well as a bevy of maintenance and safety functions come standard with Protherm. The integral H2Smart™ sampling system ensures extremely accurate measurement of hydrogen in the process atmosphere, achieving precise control of processes.

FURNACES

  • 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.
  • Efficient internal recirculation assures process atmosphere uniformity
  • Heating system provides exceptional temperature uniformity throughout the workload
  • 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
  • Fully automated operation guarantees repeatable and consistent results
  • System for data archiving and reporting as well as remote diagnostics
  • Scada connectivity
  • Clean, environmentally friendly processes powered by Nitrex effluent neutralizers
  • Some pit-type furnaces may be equipped with a vacuum purging system. This option significantly accelerates exchange of atmosphere in the retort and is very useful in nitriding of stainless steels.

 

PROCESS CONTROL

  • PID control loops to regulate configured process parameters such as temperature, furnace pressure, flows as well as atmosphere parameters (e.g.: KN, KC and KO)
  • Real-time control of all process stages
  • Process parameters configured with alarm limits
  • Notification and processing of alarms
  • Chart recorder to provide continuous recording of process variables
  • Recipe library to create and save up to 999 recipes
  • Built-in user and group security with multiple access levels

 

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
PROTHERM 9800
Software automation platform for lights-out manufacturing