VKN Pre-Vacuum Nitriding Furnace from China Suppliers | High-Precision Factory Heat Treatment Equipment
Characteristics 01
Muffle 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
How does the nitriding furnace prevent workpiece oxidation during tempering?
The system features a high-quality Muffle tank combined with a pre-vacuum system. This double-isolation mechanism completely keeps out oxygen and impurities, ensuring a clean surface finish and achieving zero oxidation tempering.
How is the nitriding process and permeation layer controlled?
The furnace is equipped with a hydrogen probe and mass flow meter (MFC) to precisely control gas ratios (NH₃, N₂, CO₂). Combined with a closed-loop feedback system for the nitrogen potential (KN value), this allows for precise control of the nitriding layer thickness and phase structure.
What is the lifespan of the Muffle tank and what processes can it handle?
Made from high-quality heat-resistant alloy (Inconel 600), the Muffle tank has a theoretical life of more than 8 years. It supports quick switching between gas nitriding, nitrogen carburizing (soft nitriding), post-oxidation, and tempering processes.
Are custom sizes available for different production needs?
Yes. We support full customization of the furnace's effective working area size, shape, and other technical parameters to match your specific production requirements. We also offer both horizontal and well-type configurations.
What safety and environmental features are integrated into the system?
For environmental protection, exhaust gases are processed through a combustion device before discharge. For operation safety, the system is equipped with multiple pressure relief protections, including pressure sensors, safety valves, and manual pressure relief valves.