Vertical Vacuum Furnace VTL Series - Top Charging Design by Leading China Suppliers & Factory for Precision Heat Treatment
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.
| 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 |
What range of vacuum levels can these vertical furnaces achieve?
The furnaces operate under a working vacuum range of 10-1 to 10-6 mbar depending on configuration. This high-vacuum environment prevents surface oxidation and decarburization, ensuring high-purity processing.
How does the cooling system work and what gases can be used?
The system features high-speed, large-flow fans using inert gases such as Nitrogen, Argon, or Helium. Cooling pressure is adjustable from 0.87 up to 10 bar abs, allowing precise control over cooling rates and gas flow directions to minimize part deformation.
What temperature uniformity can be expected in the heating chamber?
By utilizing multi-zone independent temperature control combined with a PID algorithm, the furnace achieves a temperature uniformity of ±5℃, ensuring consistent heat treatment results even for large workpieces.
Can these specifications be customized for specific production requirements?
Yes, we support customization of key parameters including effective working area dimensions, maximum operating temperature, working vacuum levels, and gas cooling pressures to align with your specific production demands.
What heating chamber structures are available?
Customers can choose between a high-durability graphite composite material structure and an all-metal structure equipped with molybdenum heating elements and metal heat insulation screens, depending on their application needs.