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China OQ Vacuum Oil Quenching Furnace - High-End Suppliers & Factory for Precision Heat Treatment Solutions
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China OQ Vacuum Oil Quenching Furnace - High-End Suppliers & Factory for Precision Heat Treatment Solutions

The OQ series vacuum oil quenching furnace is a state-of-the-art heat treatment equipment designed for advanced material processing. Operating in a vacuum environment, this furnace rapidly cools workpieces using quenching oil, ensuring superior hardness, wear resistance, and dimensional stability. By precisely controlling vacuum levels, temperatures, and quenching oil cycles through an intelligent control system, the OQ series enhances the efficiency and energy savings of the heat treatment process while maintaining excellent surface quality and performance, This furnace is particularly suitable for a variety of materials, including alloy steel, tool steel, bearing steel, stainless steel, and superalloys, effectively facilitating vacuum oil quenching, annealing, gas cooling, and bright treatment. The OQ series is especially advantageous for complex workpieces with high hardenability requirements, combining the benefits of vacuum conditions – which prevent oxidation – with the rapid cooling capabilities of oil quenching, As a leading product among China suppliers and manufacturers, OQ series vacuum oil quenching furnaces address the common challenges of oxidation, pollution, and deformation associated with traditional oil quenching methods. They serve as essential equipment for precision hardening in mold manufacturing, tool processing, and precision machinery applications, making them a vital choice for those seeking high-performance heat treatment solutions

    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 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: Width × height × length (mm) 490×400×800
    Temperature Maximum 1320℃ / normal operating temperature 540~1280℃
    Gas cooling pressure 87kpa abs
    Tank capacity (L) 3800
    Handling weight approx. (Kg) 300
    Installed power (KW) 185

    Frequently Asked Questions FAQ

    What is the ultimate vacuum level and operating temperature of the OQ-300 furnace?
    The furnace operates within a vacuum range of 10-2 to 10-6 mbar. It supports a maximum temperature of 1320℃ with a normal operating temperature range between 540℃ and 1280℃.
    How does the dual-chamber design benefit the heat treatment process?
    The dual-chamber configuration features separate heating and gas cooling zones. This ensures the heating chamber remains unaffected by quenching oil, optimizing both safety and process control with a gas cooling pressure of 87kPa abs.
    How is temperature uniformity controlled in this vacuum furnace?
    Temperature uniformity is maintained within ±5℃ through multi-zone independent temperature control combined with an advanced PID control algorithm, ensuring high precision and consistency across workpieces.
    Can this system reduce workpiece deformation during quenching?
    Yes. By combining vacuum slow cooling with staged oil quenching control (e.g., pre-cooling quenching) and adjustable cooling speeds (via oil stirring, surface pressure, and temperature controls), deformation and cracking risks are significantly lower than in traditional oil quenching.
    What environmental features are integrated into the OQ-300 model?
    The system features an integrated condenser and an activated carbon filtration device. This setup achieves a quenching oil mist recovery rate of over 95%, fully complying with modern environmental protection standards.
    What are the control and monitoring capabilities of the furnace?
    It features an integrated PLC with a touch screen, computer interface, and data recorder. It enables real-time monitoring of furnace vacuum levels, temperature, and pressure, while also supporting remote fault diagnosis and process data tracing.