China Suppliers Factory VTL Top Charging Vertical Vacuum Furnace for Precision Heat Treatment Processes
Characteristics 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 03
What are the standard models of the VTL series and their dimensions?
The standard models include the VTL-630 (effective working area: 600×3000 mm) and the VTL-860 (effective working area: 800×6000 mm). Customized sizes are also available upon request.
What is the temperature range and uniformity of these furnaces?
The maximum temperature is 1320℃, with a normal operating range of 540 to 1280℃. Due to multi-zone independent temperature control and PID algorithms, it achieves a temperature uniformity of ±5℃.
How is oxidation prevented during the heating process?
Workpieces are heated under custom vacuum conditions ranging from 10-1 to 10-6 mbar, preventing surface oxidation and decarbonization to ensure a clean process environment.
What cooling media and cooling control options are available?
The system supports inert gas cooling (Nitrogen, Argon, or Helium) under pressures of 0.87 to 10 bar. It features high-speed, large-flow fans and adjustable flow directions to control cooling speed and reduce thermal stress deformation.
How are the system diagnostics and process data monitored?
The furnace integrates a PLC with a program controller or computer interface. Operators can monitor real-time vacuum levels, temperature, and pressure via a touch screen, and the system supports remote fault diagnosis and process tracing.
Can parameters like working vacuum and dimensions be customized?
Yes, parameters such as the effective working area size, maximum temperature, working vacuum levels, and gas cooling pressure can be customized to match specific production requirements.