China VTL Top Charging Vertical Vacuum Furnace - Efficient Heat Treatment Solutions by Leading Suppliers and Factory
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 |
Frequently Asked Questions FAQs
Q: What is the temperature uniformity of the VTL series vacuum furnace?
A: The furnace achieves an outstanding temperature uniformity of ±5℃. This is made possible through multi-zone independent temperature control combined with an advanced PID algorithm, ensuring consistent processing even for large workpieces.
Q: What vacuum levels can these furnaces achieve during heating?
A: The workpieces can be heated under different vacuum degrees ranging from 10-2 to 10-6 mbar. This wide range prevents surface oxidation and decarbonization, ensuring a pure and highly stable process environment.
Q: What materials are used for the heating chamber construction?
A: The heating chamber is constructed using either high-quality graphite composite materials or an all-metal structure (incorporating molybdenum heating elements and metal heat insulation screens) to resist high temperatures and high-pressure airflows for a long service life.
Q: How is the cooling process controlled and optimized?
A: Cooling is managed using controllable inert gases (nitrogen, argon, or helium) under pressures of 0.87 to 10 bar abs. Combined with high-speed fans, adjustable gas flow directions, and high-efficiency heat exchangers, it significantly improves cooling uniformity and reduces thermal stress deformation.
Q: Can I customize the specifications of the vacuum furnace?
A: Yes. We fully support customization for the effective working area size, maximum operating temperature, working vacuum levels, gas cooling pressure, and other parameters to perfectly match your specific production requirements.