China PQS Small Vacuum Furnace Suppliers - Advanced Factory for Quenching, Annealing & Heat Treatment Solutions
Characteristic
01Heat the workpiece under different vacuum (10-2~10-6 mbar) to avoid surface oxidation and decarbonization and ensure the purity and finish of the material.
Partition independent temperature control, combined with PID algorithm, to achieve ±5℃ furnace temperature uniformity, with good temperature control accuracy.
Through different cooling inert gas (nitrogen, argon, helium) and under different cooling pressure, combined with high-speed fan to quickly cool the workpiece, cooling speed is controllable.
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 a long service life.
Low pressure gas quenching technology, compared with oil quenching or water quenching, reduce deformation and residual stress, suitable for small thin wall or complex shape parts.
Support heating, insulation, cooling multi-stage automatic control, can be preset complex heat treatment process.
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.
The whole equipment adopts miniaturized structure design, suitable for laboratory or small batch production, optimize space utilization, low energy consumption, flexible operation and so on.
Common specifications
02| Model number | PQS-23 | PQS-34 | PQS-42 |
| Effective working area dimension: Width × height × length (mm) | 230×200×400 | 340×220×420 | 420×400×650 |
| Working vacuum | 10-1~10-6mbar (optional) | ||
| Temperature | Maximum 1320℃ / normal operating temperature 540~1280℃ | ||
| Cooling gas medium | Nitrogen, Argon (optional) | ||
| Gas cooling pressure | 0.87~2.8 bar abs, Maximum support 10 bar abs (optional) | ||
| Handling weight approx. (Kg) | 30 | 60 | 180 |
| Installed power (KW) | 70 | 75 | 80 |
Frequently Asked Questions
FAQWhat is the maximum operating temperature of the PQS series vacuum furnaces?
The PQS series vacuum furnaces can reach a maximum temperature of 1320℃, with a normal operating temperature range of 540℃ to 1280℃.
How does the furnace prevent oxidation during the heating process?
By heating the workpiece under a high vacuum range of 10-2 to 10-6 mbar, the furnace successfully prevents surface oxidation and decarbonization, ensuring the purity and high-quality finish of the treated materials.
What cooling media and pressures are used for quenching?
The system supports inert cooling gases such as Nitrogen, Argon, and Helium. The standard cooling gas pressure ranges from 0.87 to 2.8 bar abs, with optional configuration support for up to 10 bar abs to achieve highly controllable, rapid cooling.
What are the advantages of using low-pressure gas quenching?
Compared to traditional oil or water quenching, low-pressure gas quenching significantly reduces part deformation and residual stress. This makes it ideal for handling small, thin-walled, or geometrically complex parts.
Can the dimensions and technical specifications of the furnace be customized?
Yes, we support customization for the furnace's effective working area size, maximum temperature, working vacuum levels, gas cooling pressure, and other parameters to match your specific production requirements.
Is the PQS series suitable for laboratory environments?
Yes, the equipment features a miniaturized structure design, making it highly suitable for laboratory research, space-optimized facilities, or small-batch industrial production with low energy consumption and flexible operation.