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High-End China VCB Vacuum Low Pressure Carburizing Oil Quenching Furnace - Top Suppliers & Factory
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High-End China VCB Vacuum Low Pressure Carburizing Oil Quenching Furnace - Top Suppliers & Factory

The VCB series vacuum low pressure carburizing furnace is a pinnacle of advanced heat treatment technology, designed for superior performance in various industrial applications. Operating in a vacuum and low pressure environment, this innovative furnace uses acetylene gas to decompose active carbon atoms. By meticulously controlling temperature, flow, and pressure, it achieves effective surface carburizing that results in a uniform hardened layer. Ideal for complex geometric parts, it addresses the traditional carburizing dead angle issue, ensuring consistent cementing layer properties, As a leading equipment option from China, our state-of-the-art furnace offers multiple functions including vacuum carburizing with oil quenching, vacuum carbonitriding, solution treatment, and vacuum bright quenching. With a protective atmosphere and optional gas cooling capabilities up to 1.99 Bar, this furnace is widely utilized in aerospace, automotive manufacturing, and precision tools industries, By utilizing our VCB series furnace, manufacturers can substantially enhance the hardness, wear resistance, and fatigue strength of metal parts through effective carburizing in a vacuum environment. Trust our factory as your reliable supplier for this innovative technology that boosts product quality and operational efficiency

    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
    Parameter 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.

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    Frequently Asked Questions (FAQ)

    What are the environmental advantages of VCB vacuum low-pressure carburizing?

    VCB vacuum carburizing is highly eco-friendly. It produces zero CO2/CO emissions, operates without open flames, and eliminates large amounts of oil smoke, creating a clean and green working environment.

    How does vacuum carburizing improve the surface quality of workpieces?

    By heating and carburizing in a vacuum and low-pressure environment, it completely avoids intergranular oxidation and decarburization, producing workpieces with beautiful, bright, and high-quality surface finishes.

    What are the available specifications and capacities for the VCB models?

    The common models include VCB-200 (200 Kg capacity, 110 KW), VCB-600 (600 Kg capacity, 210 KW), and VCB-800 (800 Kg capacity, 240 KW). They all support normal operating temperatures between 750~1050℃ up to a maximum of 1100℃.

    Can complex geometric parts and stainless steel be treated in VCB furnaces?

    Yes. Unlike traditional gas carburizing, vacuum carburizing easily treats parts with complex geometric shapes (like inner holes) with high uniformity, and it is fully capable of carburizing stainless steel.

    How much faster is vacuum carburizing compared to traditional gas carburizing?

    Vacuum carburizing reduces total processing time by approximately 1/3 compared to gas carburizing, because it allows higher-temperature treatments (up to 1100℃) and requires no time-wasting atmosphere pre-regulation.