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China VTL Top Charging Vertical Vacuum Furnace - Efficient Heat Treatment Solutions from Trusted Suppliers and Factory
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China VTL Top Charging Vertical Vacuum Furnace - Efficient Heat Treatment Solutions from Trusted Suppliers and Factory

The VTL series top charging vertical vacuum furnace is a highly efficient industrial solution tailored for heat treatment of long-axis, tubular, and hanging workpieces. Manufactured in China, this equipment features an innovative top vertical charging design coupled with a vertical furnace layout, which greatly enhances space utilization and operational convenience, Designed to perform complex processes such as quenching, annealing, solution treatment, and brazing, the VTL series maintains precise temperature control in vacuum or controlled atmospheres. This makes it ideal for handling thin and heavy workpieces that are prone to deformation while requiring high precision. Its unique construction minimizes the risks of workpiece lifting deformation, enabling applications across industries like aerospace engine rotors, energy equipment long axes, precision molds, and semiconductor materials, As a leading factory among China suppliers, we emphasize the use of high-quality materials such as high-temperature alloys, stainless steel, titanium alloys, and ceramics, all without risking oxidation during heat treatment. This ensures uniform performance, excellent surface finish, and dimensional stability of the workpieces, meeting the stringent standards of high-end manufacturing. Choose VTL series vacuum furnaces to elevate your production capabilities
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    Product Details

    Characteristic 01

    Electric or hydraulic drive furnace cover lifting, with a special lifting system, heavy workpieces quickly and smoothly into the furnace, reduce the risk of manual intervention and bump

    Heating the workpiece under different vacuum degree (10-2~10-6 mbar) to avoid surface oxidation and decarbonization and ensure pure and stable process environment

    Multi-zone independent temperature control, combined with PID algorithm, to achieve ±5℃ furnace temperature uniformity, with good temperature control accuracy, to meet the needs of large workpiece consistency processing

    The heating chamber is made of graphite composite material or all-metal structure (such as molybdenum heating elements and metal heat insulation screen), which is resistant to high temperature and high pressure airflow and has long service life

    Through different cooling inert gas (nitrogen, argon, helium) and under different cooling pressure, combined with high speed and large flow fan to quickly cool the workpiece, cooling speed is controllable

    Can choose the cooling gas flow direction and air flow reversal time, combined with high efficiency heat exchanger, significantly improve the cooling uniformity, reduce the thermal stress deformation of parts

    Enhanced furnace structure + multiple safety protection, in line with international safety standards, equipment life of more than 20 years

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

    Common specifications 02

    Model number VTL-630 VTL-860
    Effective working area diameter × height (mm) 600×3000 800×6000
    Working vacuum 10-1~10-6 mbar (optional)
    Temperature Maximum 1320℃ / normal operating temperature 540~1280℃
    Cooling gas medium Nitrogen, Argon (optional)
    Cooling pressure 0.87~10 bar abs
    Handling weight approx. (Kg) 600 1000
    Installed power (KW) 240 600
    ※ Support the furnace effective working area size, maximum temperature, working vacuum, gas cooling pressure and other parameters customized according to requirements, to meet the diversified production scenarios.

    Frequently Asked Questions FAQ

    What are the main advantages of the vertical design in the VTL series?
    The vertical design is ideal for long, heavy, or complex workpieces. Equipped with a special electric or hydraulic drive lifting system, it allows parts to enter the furnace smoothly, reducing the risk of manual handling errors, collisions, and component deformation.
    What vacuum levels can these vertical furnaces achieve?
    The VTL series can achieve a working vacuum range from 10-1 to 10-6 mbar (optional). Heating under these controlled vacuum degrees effectively prevents surface oxidation and decarbonization, ensuring a highly stable and clean process environment.
    How is temperature uniformity controlled inside the furnace?
    Temperature uniformity is maintained within ±5℃. This is achieved through a multi-zone independent temperature control system combined with advanced PID algorithms, which ensures consistent thermal processing even for large-scale workpieces.
    What cooling media and pressures are supported for gas quenching?
    The system supports inert cooling gases such as Nitrogen and Argon (optional) under pressures ranging from 0.87 to 10 bar abs. A high-speed, large-flow fan combined with controllable gas flow directions helps regulate cooling speeds and minimizes thermal stress deformation.
    Can I customize the specifications of the VTL vacuum furnace?
    Yes, we offer full customization. The effective working area dimensions, maximum working temperature, vacuum level, gas cooling pressure, and other parameters can be tailored specifically to fit your production requirements and scenarios.