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China VBL Series Bottom Charging Vertical Vacuum Furnace - High-Performance Heat Treatment Equipment from Reliable Suppliers and Factory
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China VBL Series Bottom Charging Vertical Vacuum Furnace - High-Performance Heat Treatment Equipment from Reliable Suppliers and Factory

The VBL series Bottom Charging Vertical Vacuum Furnace is a state-of-the-art heat treatment solution designed specifically for large, heavy, or complex structural components. Manufactured in China, this equipment features a unique bottom charging structure that enhances loading efficiency and simplifies operation. With precise temperature control in vacuum or controlled atmosphere environments, it achieves uniform heating and rapid cooling, making it ideal for various heat treatment processes such as quenching, tempering, annealing, and brazing, The vertical design of this furnace is particularly advantageous for processing long shafts, rings, molds, and large mechanical parts, making it a preferred choice among suppliers in industries like aerospace, energy equipment, automobile manufacturing, and nuclear power. Our factory ensures that the VBL series can effectively handle materials such as superalloys, titanium alloys, stainless steel, and ceramic composites. This technology guarantees no oxidation or deformation of workpieces, significantly enhancing their mechanical properties and extending their service life. Choose our VBL series furnace for unparalleled performance in heat treatment applications
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    Product Details

    Characteristic 01

    Bottom lift loading system with vertical furnace, reduce floor space, support heavy workpieces efficient loading and unloading, reduce manual operation intensity.

    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.

    The heating chamber is made of graphite composite material or all-metal structure, which is resistant to high temperature and high pressure airflow.

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

    The load bearing table of the processing parts can be rotated during heating and cooling, which can ensure the best temperature uniformity.

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

    Integrated PLC with real-time monitoring of furnace vacuum degree, temperature, pressure and other data, supporting remote fault diagnosis.

    Common Specifications 02

    Model number VBL-100/120 VBL-140/180 VBL-160/200
    Effective working area (D × H mm) 1000 × 1200 1400 × 1800 1600 × 2000
    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) 1000 1500 2000
    Installed power (KW) 240 430 500
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    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 advantages of the bottom lift loading system?
    The bottom lift loading system with a vertical furnace configuration effectively reduces floor space, supports the efficient loading and unloading of heavy workpieces, and significantly reduces manual operation intensity.
    How does the furnace prevent oxidation during heating?
    By heating workpieces under controlled vacuum levels ranging from 10-2 to 10-6 mbar, the system prevents surface oxidation and decarbonization, ensuring a pure and stable process environment.
    What is the temperature uniformity of the furnace?
    The furnace achieves ±5℃ temperature uniformity by utilizing multi-zone independent temperature control combined with a sophisticated PID algorithm, ensuring consistent processing even for large workpieces.
    What cooling media and pressures are supported?
    The system supports cooling using inert gases such as Nitrogen and Argon (with Helium options) under cooling pressures ranging from 0.87 to 10 bar abs. This is combined with a high-speed, large-flow fan for controllable cooling speeds.
    Can these vacuum furnaces be customized?
    Yes. We support full customization of parameters including the effective working area size, maximum temperature limits, working vacuum depth, and gas cooling pressure to fit your specific production scenarios.