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OQ Vacuum Oil Quenching Furnace - High-End Heat Treatment Equipment from China Suppliers and Factory for Precision Hardening
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OQ Vacuum Oil Quenching Furnace - High-End Heat Treatment Equipment from China Suppliers and Factory for Precision Hardening

The OQ series vacuum oil quenching furnace stands out as a premium heat treatment solution, designed for precision in a vacuum environment. This advanced equipment utilizes rapid cooling through quenching oil while precisely managing vacuum levels, temperature, and intelligent control processes. As a result, it enhances the hardness, wear resistance, and dimensional stability of various workpieces, facilitating an energy-efficient and effective heat treatment process. Ideal for alloy steel, tool steel, bearing steel, stainless steel, superalloys, and other materials, it excels in vacuum oil quenching, annealing, gas cooling, and bright treatment, making it particularly suitable for complex components with high hardenability requirements, By eliminating oxidation, pollution, and deformation associated with traditional oil quenching processes, the OQ series furnace has become essential equipment for the precision hardening of high-alloy materials. Trusted by manufacturers in the mold production, tool processing, and precision machinery sectors, our factory in China produces these high-quality vacuum oil quenching furnaces, positioning us as a leading supplier in the industry. Optimize your heat treatment processes with our cutting-edge technology today!

    CHARACTERISTIC 01

    Heat the workpiece in vacuum (10-2~10-6 mbar) under different vacuum or low pressure inert gas environment to avoid surface oxidation and decarbonization and ensure material purity and finish.

    Multi-zone independent temperature control, combined with PID algorithm, to achieve ±5℃ furnace temperature uniformity, with good temperature control accuracy.

    The heating chamber is covered with molybdenum plate, resistant to high temperature and high pressure airflow erosion, long service life, can meet a variety of process requirements, to achieve bright tempering process.

    Dual chamber furnace with both heating chamber and gas cooling chamber, not affected by quenching oil, gas cooling, gas cooling pressure (87kPa abs.).

    Adjustable cooling speed, by controlling the oil stirring speed, oil surface pressure and quenching oil temperature, adapt to the cooling needs of different materials, reduce the risk of deformation and cracking.

    Vacuum slow cooling + oil quenching stage control (such as pre-cooling quenching), the deformation is better than the traditional oil quenching furnace.

    Integrated condenser and activated carbon filter device, quenching oil mist recovery rate > 95%, in line with the prevailing environmental standards.

    Integrated PLC, with program controller or computer interface, touch screen, recorder, real-time monitoring furnace vacuum, temperature, pressure, support remote fault diagnosis and process tracing.

    COMMON SPECIFICATIONS 02

    Model number OQ-300
    Effective working area dimension 490 × 400 × 800 mm (Width × height × length)
    Temperature Maximum 1320℃ / normal operating temperature 540~1280℃
    Gas cooling pressure 87 kPa abs
    Tank capacity 3800 L
    Handling weight approx. 300 Kg
    Installed power 185 KW

    Frequently Asked Questions FAQ

    How does the vacuum environment protect the workpieces?
    By heating workpieces in a high vacuum (10-2~10-6 mbar) or low-pressure inert gas environment, the system prevents contact with oxygen and other reactive gases. This completely avoids surface oxidation and decarbonization, ensuring excellent material purity and a bright surface finish.
    What is the temperature uniformity of this vacuum furnace?
    The furnace features multi-zone independent temperature control combined with an advanced PID algorithm. This configuration achieves an exceptional temperature uniformity of ±5℃, ensuring precise and consistent heat treatment results.
    How is deformation and cracking minimized during cooling?
    Deformation is minimized by controlling the oil stirring speed, oil surface pressure, and quenching oil temperature to adjust cooling rates. Additionally, the vacuum slow cooling combined with oil quenching stage control (pre-cooling quenching) provides superior deformation control compared to traditional oil quenching methods.
    Does this system meet environmental standards for oil mist?
    Yes. The furnace is equipped with an integrated condenser and an activated carbon filtration device. This system achieves a quenching oil mist recovery rate of over 95%, ensuring compliance with prevailing environmental protection standards.
    What are the key technical specifications of the OQ-300 model?
    The OQ-300 has an effective working dimensions of 490×400×800 mm, a maximum temperature of 1320℃ (operating range 540~1280℃), a 3800L tank capacity, a handling capacity of approximately 300 Kg, and an installed power of 185 KW.