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China VCB Vacuum Low Pressure Carburizing Oil Quenching Furnace - Leading Suppliers and Factory for Advanced Heat Treatment
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China VCB Vacuum Low Pressure Carburizing Oil Quenching Furnace - Leading Suppliers and Factory for Advanced Heat Treatment

The VCB series vacuum low pressure carburizing furnace represents cutting-edge heat treatment technology in China. This advanced furnace utilizes a vacuum and low pressure environment to decompose acetylene gas, generating active carbon atoms. Through precise temperature, flow, and pressure control, it enables surface carburizing, resulting in a uniform hardened layer on complex geometric parts. Unlike traditional carburizing methods, the VCB furnace effectively addresses the dead angle problem, ensuring consistent treatment across all surfaces, Ideal for industries such as aerospace, automobile manufacturing, and precision tools, our furnace offers versatile functions including vacuum carburizing, oil quenching, vacuum carbonitriding, solution treatment, and vacuum bright quenching. With the ability to maintain a protective atmosphere and optional gas cooling up to 1.99 Bar, this product significantly enhances the hardness, wear resistance, and fatigue strength of metal parts, As a leading factory and supplier of heat treatment solutions in China, we are committed to providing high-quality products that meet the demanding needs of modern manufacturing. Experience the benefits of the VCB series furnace for superior performance in your applications

    Characteristic

    01

    Friendly to the environment, no carbon monoxide/carbon dioxide emissions, clean working environment, no open fire, oil smoke, etc., in line with the development direction of green manufacturing

    Heating and carburizing in vacuum and low pressure environment, no intergranular oxidation, completely avoid oxidation, decarburization, with the best parts surface, beautiful and bright parts after treatment

    For parts dealing with complex geometric shapes, high-demand carburizing and carbonitriding can be achieved, and the carburizing uniformity of the same furnace parts is high

    Vacuum quenching oil, equipped with efficient oil mixing, diversion system, heat exchanger and heater, to ensure quenching stability, cooling rate is fast, to meet the martensitic transformation needs of materials

    Allow carburizing at higher temperature, significantly shorten the processing time, less air consumption, low production and operating costs, especially suitable for deep carburizing or stainless steel and other materials such as vacuum carburizing

    With online char processing function, no need to interrupt the production process, low maintenance frequency, effectively ensure the continuity and stability of production

    The equipment can be convenient to start and stop the furnace according to the actual demand, and the flexibility is very high, suitable for multi-variety and small-batch production

    Integrated PLC, with program controller, touch screen, recorder and other real-time monitoring furnace vacuum degree, temperature, gas flow, pressure and other parameters, support remote fault diagnosis and process tracing

    Common specifications

    02
    Model number VCB-200 VCB-600 VCB-800
    Effective working area dimension:
    Width × height × length (mm)
    400×450×600 660×650×1200 760×700×1220
    Temperature Maximum 1100℃ / normal operating temperature 750~1050℃
    Oil tank capacity (L) 2700 6500 7700
    Handling weight approx. (Kg) 200 600 800
    Installed power (KW) 110 210 240
    ※ Effective size includes tray height

    Comparison between vacuum carburizing and gas carburizing

    03
    Process Aspect Vacuum carburizing Gas carburizing
    Quality
    • High concentration carburizing is easy
    • No grain boundary oxidation and decarburization
    • The surface of the workpiece with complex geometry is easy to carburize
    • Stainless steel can be carburized
    • High concentration carburizing is difficult
    • Grain boundary oxidation presence (~ 5 nm)
    • It is difficult to carburize the inner surface of the hole
    • Stainless steel carburizing is difficult
    Cost
    • Increased productivity through high temperature and short time treatment (~ 1100℃)
    • Intermittent operation
    • Vacuum heat insulation energy saving
    • 950℃ is the limit
    • During intermittent operation, the furnace temperature and gas are required to be maintained
    • The furnace body continues to release heat
    Environment
    • Zero CO2 production
    • Good working environment
    • No large amount of oil smoke emission
    • Produce a lot of CO2
    • High-temperature operation
    • There are a lot of oil smoke emissions
    Security
    • Vacuum and no open flame, so safe
    • Compared with vacuum carburizing, it is necessary to pay attention to operating procedures
    Work efficiency
    • Carburizing time is 1/3 shorter than gas carburizing
    • No atmosphere pre-regulation, avoid time waste
    • No particularly skilled operators required
    • Low temperature and long carburizing time
    • The atmosphere needs to be established in advance
    • Skilled and experienced operators are required
    In SUMMARY

    VCB vacuum low-pressure carburizing furnace has become the core equipment of heat treatment in high-end manufacturing industry with its advantages of high precision, low pollution and intelligence. Its technological development is evolving towards higher efficiency, wider material compatibility and deep AI integration, promoting industrial manufacturing to green and precision.

    Comparison between vacuum carburizing and gas carburizing

    Frequently Asked Questions

    FAQ

    Q What are the primary environmental advantages of the VCB vacuum carburizing furnace?

    The VCB vacuum carburizing furnace is highly eco-friendly, producing zero carbon monoxide and carbon dioxide emissions. It operates without open flames or heavy oil smoke, aligning perfectly with green manufacturing standards.

    Q How does vacuum carburizing prevent oxidation and decarburization on workpieces?

    By performing heating and carburizing within a controlled vacuum and low-pressure environment, intergranular oxidation is completely avoided. This ensures treated parts have an optimal, bright, and beautiful surface finish.

    Q What are the common specifications and capacities for the VCB furnace series?

    The VCB series includes models such as VCB-200 (200kg capacity, 110KW), VCB-600 (600kg capacity, 210KW), and VCB-800 (800kg capacity, 240KW), catering to various production volumes and work dimensions.

    Q Why is vacuum carburizing more efficient than traditional gas carburizing?

    Vacuum carburizing reduces total processing time by approximately 1/3 compared to gas carburizing. It eliminates the need for atmosphere pre-regulation, enables higher treatment temperatures (up to 1100℃), and requires less skilled operators.

    Q Can complex geometric parts and stainless steel be treated in this furnace?

    Yes. The VCB vacuum carburizing furnace excels at processing complex geometric shapes with high carburizing uniformity, and it easily handles materials like stainless steel which are difficult to process using traditional gas carburizing.