High-End VKN Pre Vacuum Nitriding Furnace - China Suppliers & Factory for Advanced Heat Treatment Solutions
Characteristic
01Muffle tank + pre-vacuum system double isolation of oxygen and impurities, to ensure the surface finish of the workpiece, to achieve zero oxidation tempering
Equipped with hydrogen probe and mass flow meter (MFC) to accurately control the proportion of NH₃, N₂, co2 and other gases, combined with nitrogen potential (KN value) closed-loop feedback system, to realize the precise control of the permeation layer thickness and phase structure
High quality heat-resistant alloy Muffle tank (Inconel 600), can quickly adapt to gas nitriding, nitrogen carburizing (soft nitriding), post-oxidation, tempering and other process switching, theoretical life of more than 8 years
Built-in high-speed turbine fan and baffle, forced air flow multi-direction circulation, to ensure the same nitriding rate of each part of the processed parts
Exhaust gas is discharged after treatment by the combustion device, which meets the requirements of environmental protection; The equipment is also equipped with multiple pressure relief protection (pressure sensor, safety valve, manual pressure relief valve) to ensure safe operation
Integrated PLC, with program controller or computer interface, touch screen, recorder, real-time monitoring furnace vacuum, temperature, nitrogen potential, pressure, support remote fault diagnosis and process tracing
The furnace door can be opened vertically, which not only saves space, opens and closes efficiently, but also fits perfectly with the automatic production line, and can be seamlessly integrated into the automatic production process, effectively improving the overall production efficiency
The equipment provides two types of horizontal type and well type for you to choose flexibly to meet the diversified production needs
Common specifications
02| Model number | VKN- 200 | VKN-600 | VKN-1000 | VKN-1500 | VKN-4000 | |||||||||||||||
| Effective working area dimension Width × height × length (mm) |
400×400×600 | 600×600×900 | 760×800×1200 | 900×900×1200 | 1200×1000×1500 | |||||||||||||||
| Temperature | Maximum 750℃/ Normal operating temperature 150~700 ℃ | |||||||||||||||||||
| Cooling pressure | 1 bar abs | |||||||||||||||||||
| Handling weight approx. (Kg) | 200 | 600 | 1000 | 1500 | 4000 | |||||||||||||||
| Installed power (KW) | 80 | 120 | 160 | 180 | 240 | |||||||||||||||
Frequently Asked Questions
03Q: How does the VKN series gas nitriding furnace achieve zero oxidation tempering?
The furnace utilizes a combination of a high-quality Muffle tank and a pre-vacuum system. This double-isolation setup effectively seals out oxygen and impurities to ensure a clean surface finish on the workpieces.
Q: What controls the precision of the permeation layer thickness and phase structure?
Precision is achieved using an integrated hydrogen probe and a mass flow meter (MFC) to accurately regulate gases like NH₃, N₂, and CO₂. This is paired with a closed-loop feedback system based on the nitrogen potential (KN value).
Q: What is the expected lifespan of the Muffle tank?
The Muffle tank is made from a premium heat-resistant alloy (Inconel 600) designed for fast process switching (gas nitriding, soft nitriding, post-oxidation, tempering) and has a theoretical service life of more than 8 years.
Q: What are the temperature limits and normal operating ranges for these furnaces?
The VKN series has a maximum design temperature of 750℃, with a normal operating temperature range between 150℃ and 700℃.
Q: Can the furnace dimensions be customized for specific production lines?
Yes, customization is fully supported. The effective working area size, shape, and other technical parameters can be tailored to fit your specific production scenarios and automatic production lines.