1800°C VSF Vacuum Annealing Furnace

1800℃ Ultra-High Vacuum Furnace (Vacuum Level: 2×10⁻⁵Pa): Φ1200×1800mm Vacuum Chamber + Bottom Lifting & Cover Opening Structure, Load Capacity ≥200kg. Suitable for Vacuum Annealing, Degassing and High-Temperature Heat Treatment of Metal Parts, Improving Workpiece Surface Performance and Microstructure Stability.

Elevator Furnace

1800°C VSF Vacuum Annealing Furnace

Pressure Rise Rate：≤ 0.5 Pa/h
Workpiece Load Capacity：≥ 200 kg
Total Equipment Power：≤ 90 kW
Internal dimensions：≥ Ø1200 mm × 1800 mm.
Maximum Uniform Work Zone：≥ Ø700 mm × 800 mm
temperature：1800°C

Product Video

  1. I. Primary Application
  2. This equipment is primarily designed for heating workpieces or materials in a vacuum or low-pressure protective atmosphere environment, aiming to enhance the surface properties and microstructure of components. It can also be utilized for vacuum heating degassing, oxide evaporation, and improving the surface brightness of metal parts.
  3. II. Technical Specifications
  4. Maximum Uniform Heating Zone: Maximum working zone: Ø700 mm × 800 mm. Maximum operating temperature: 1600°C (the furnace body is designed and constructed for 1800°C).
  5. Total Equipment Power: ≤ 90 kW
  6. Vacuum Level: Ultimate vacuum: 2×10⁻⁵ Pa. The vacuum system achieves 5×10⁻³ Pa from atmospheric pressure in less than 40 minutes (empty furnace). After 24 hours from shutdown at ultimate vacuum, the residual vacuum shall be better than 1 Pa.
  7. Heating Rate: From room temperature to 1200°C under vacuum: ≤ 100 minutes. From room temperature to 1600°C under vacuum: ≤ 200 minutes.
  8. Workpiece Load Capacity: ≥ 200 kg
  9. Pressure Rise Rate: ≤ 0.5 Pa/h
  10. IV. Configuration Requirements
  11. Vacuum Chamber Assembly
    1. Internal dimensions: ≥ Ø1200 mm × 1800 mm.
    2. Bottom-lift lid design for loading.
    3. High-quality carbon steel with painted finish.
    4. Leak detection via helium mass spectrometer and quadrupole mass spectrometer.
    5. Water-cooled double-wall with spiral cooling channels.
    6. Sealed with fluoroelastomer (FKM) O-rings.
    7. Equipped with an observation window.
  12. Heater & Thermal Insulation Assembly
    1. 2.1 Heater & Insulation: "Three-High" graphite heater with high-purity graphite felt thermal shielding, operable under vacuum or protective atmosphere. High-temperature boron nitride (BN) insulating ceramics ensure electrical insulation and heat resistance. Workpiece support structure (pedestal/table) composed of "Three-High" graphite components to ensure required support strength. Features safe and reliable operation, high-temperature resistance, and long service life.
    2. 2.2 Temperature Control: Measurement and control range: Room temperature to 1700°C. Ultimate working temperature: 1650°C (not exceeding 60 minutes under vacuum). Can operate long-term at 1600°C (vacuum) or 1000°C (gas-filled). Control accuracy: ±1°C. Programmable temperature control via an imported temperature controller.
    3. 2.3 Maximum Uniform Work Zone: ≥ Ø700 mm × 800 mm.
  13. Gas Inlet System
    1. Consists of gas inlet valves, piping, needle valves, mass flow meters, and fittings.
    2. Two independent gas lines (for breaking vacuum with nitrogen and for introducing protective atmosphere).
    3. Digital display of gas flow rate.
  14. Pumping System, Valves, & Piping
    1. Vacuum Pumps: 1 mechanical pump; 1 diffusion pump (including cold trap).
    2. Vacuum Valves: 1 set of main vacuum valves for the pumping system; 1-2 sets of throttling/speed control valves.
  15. Support Frame & Enclosure Assembly
    1. Welded from high-quality square steel sections.
    2. Quick-release side panels with powder-coated finish (color as specified).
    3. Frame surfaces decorated with stainless steel cladding.
  16. Vacuum Measurement & Electrical Control System
    1. 6.1 Power Cabinet: 1 unit.
    2. 6.2 Main Control Power Supply: 1 unit (provides power to mechanical pump, diffusion pump, solenoid valves, vacuum gauges, etc., with power failure and water cutoff protection).
    3. 6.3 Heating/IGBT Power Supply: 2 units (utilizing imported temperature controllers, capable of multi-segment program control). Single unit specifications: Power ≥ 25 kW, Output 50V, 500A.
    4. 6.4 Digital Vacuum Gauge: 1 set; Measurement range: 1.0×10⁵ Pa to 1.0×10⁻⁵ Pa.
  17. Spare Parts
    1. 7.1 2 pieces each of all easily worn/damaged sealing surfaces and seal rings.
    2. 7.2 2 pieces of optical glass for the observation window.
    3. 7.3 1 set of spare "Three-High" graphite heating elements.
    4. 7.4 1 each of ionization gauge tube and Pirani (resistance) gauge tube.
    5. 7.5 1 set of insulating components.
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Email Email：luoyanganjing@gmail.com