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Vacuum-Atmosphere Rotary Electric Furnace

The 1200℃ vacuum atmosphere rotary electric furnace is specially designed for high-end heat treatment processes in fields such as new energy materials, electronic ceramics, and cemented carbides. It adopts a quartz glass reducing-diameter furnace tube (Φ120-300mm), supports vacuum (6.67×10⁻⁵Pa) and multi-atmosphere (N₂/Ar/H₂) environments, and is equipped with 50-segment intelligent program temperature control and 1-15r/min stepless speed regulation.

Vacuum-Atmosphere Rotary Electric Furnace

Vacuum-Atmosphere Rotary Electric Furnace

Maximum Temperature:1200°C
Speed:Adjustable from 1-15 r/min
Tube material:Quartz glass tube
Furnace Tube:Ø120mm (ends) / Ø300mm (center)
Furnace chamber dimensions:Diameter 300mm × heating zone 2500mm
Working Volume:45-50L (material holding capacity)

Product Video

  • Dynamic Processing:
    • Variable Tilt Angle (0-15°) for adjustable material residence time.
    • Reverse Rotation Mode to prevent particle agglomeration.
  • Advanced Sealing:
    • Magnetic Fluid Seals for vacuum integrity at high RPM.
    • Double O-Ring + Water Cooling for gas-tight operation.
  • Modular Gas System:
    • Multi-Gas Manifold with MFCs (0-500 sccm each).
    • Gas Purge Cycles for atmosphere switching.

Category1200°C
ModelGWL-1150SSR-ZQ
Chamber DimensionsØ300mm × 2500mm (L)
Tube MaterialQuartz Glass Tube
Tube DimensionsEnds: Ø120mm Center: Ø300mm
Volume45-50L (material capacity)
Power Supply AC380V, 60kW
Maximum Temperature1200°C
Continuous Operating1150°C
Control Range80-1200°C
ThermocoupleType K (0-1320°C)
Heating Element PositionSurrounding tube
Rotation Speed1-15r/min adjustable
Tube Tilt Angle1-25° adjustable
Vacuum Pump1. Rotary vane pump (6.67×10<sup>-2</sup>Pa) 2. Mechanical + molecular pump
Vacuum Level (Optional)1. 10-30Pa (mechanical) 2. 6.67×10<sup>-5</sup>Pa (mechanical+molecular)
Vacuum GaugeDigital display
Flow MeterMass flow meter (N<sub>2</sub>, Ar, or H<sub>2</sub>)
Temperature Control Accuracy±1°C (integrated circuit control, no overshoot)
Temperature Uniformity±1°C (depends on chamber size, multi-zone control available for large chambers to achieve better uniformity)
Heating RateAdjustable from 1°C/h to 20°C/min
Heating ElementsSilicon carbide rods
Furnace BodyCNC-machined with polishing, grinding, acid washing, phosphating, powder coating and high-temperature baking. Dual-color anti-corrosion finish with mirror paint (export quality)
Furnace StructureDouble-layer air-cooled shell with optimized airflow baffles for conductive plate cooling and oxidation prevention
Chamber AccessElectric vertical lift door
Refractory MaterialVacuum-formed high-purity alumina composite with alumina hollow sphere boards at loading zones (excellent thermal shock resistance)
Insulation MaterialsThree-layer insulation structure: Aluminum Silicate Fiberboard, Alumina Fiberboard, and Alumina (Polycrystalline) Fiberboard.
Furnace Shell TemperatureRemains below 45°C during continuous long-term operation.
Protection SystemIntegrated modular control unit with dual-loop control and protection mechanisms. Features include overshoot protection, over/under-regulation compensation, thermocouple break detection, phase loss protection, overvoltage/overcurrent/overtemperature safeguards, current feedback control, and soft-start function.
Control SystemClosed-loop thyristor module with phase-shift trigger control. Supports continuous adjustment of output voltage, current, or power with constant voltage/current/power modes. Dual-loop regulation (inner current loop, outer voltage loop) ensures stable operation under sudden load changes or overload conditions, protecting heating elements from excessive electrical stress.
Display ParametersReal-time display of temperature, temperature segment number, segment duration, remaining time, output power percentage, voltage, current, etc.
Temperature Curve ProgrammingIntelligent temperature controller with standard PID, AI-regulated APID/MPT modes, self-tuning, and self-learning capabilities. Features 30-segment program control with arbitrary ramp rates, programmable commands for cycle/jump/run/pause/stop, and real-time program modification during operation. Smooth curve control via AI-based curve fitting algorithm.
Multiple Curve StorageUp to 50 programmable temperature profiles.
PLC SystemSiemens S7-200
Touchscreen Interface7-inch color touchscreen with read/write/storage functions for temperature, gas flow, vacuum level, rotation speed, voltage, current, etc.
Standard AccessoriesTwo thermal insulation plugs, one pair of crucible tongs, and one pair of high-temperature gloves.

Additional Equipment

  • Lift door:Pneumatic door opening, controlled by foot pedal, with hot surface facing away from the operator.
  • Touchscreen: Multilingual menu, multiple temperature rise process curve storage, historical curve storage, and data reports (7 inches).
  • Computer Control: Controls furnace start, pause, stop, stores historical curves, sets temperature rise curves, reads temperature rise curves, sets parameters, etc.
  • Siemens PLC Control: Real-time data reading with open ports for data communication with upstream and downstream equipment.
  • Manual or automatic gas supply system
  • Observation Window: Designed on the furnace door with high-temperature-resistant quartz glass.
  • Movable Casters: Two swivel casters and two fixed casters.
  • Rapid Cooling: Achieved with a frequency inverter and centrifugal fan for programmable cooling control.
  • Quick Discharge Rack: The material rack is made of high-temperature steel, with wear-resistant heavy-duty refractory bricks on the top, enabling rapid
  • transfer of materials from the furnace to an external platform in high-temperature environments.
  • Multi-Point Temperature Control: Independent temperature control on multiple sides for improved temperature uniformity.
  • High temperature furnace chamber with multi-sided heating for very good temperature uniformity.
  • Stirring Fan: Metal stirring fan, can be linked with PLC to automatically start at designated temperature segments.
  • Independent Control Cabinet: Separate control cabinet with an extended control cable length (up to 5 meters).
  • Heat Storage Furnace Bottom: The furnace bottom sinks 50mm with a hollow design, supported by multiple vertical columns, increasing Ceramic Load-Bearing Plate and ensuring uniform heat distribution at the bottom.
  • Exhaust Gas Treatment: Adds VOC exhaust gas treatment furnace with a capacity of 40m³,H or 80m³,H.
  • Corrosion-Resistant Furnace Lining: Furnace lining material resistant to acids, alkalis, and hydrofluoric acid corrosion.
  • Heating Element Protection: Prevents contamination from powder and corrosion from volatile substances and scratch.
  • Clean Furnace Lining: Furnace lining made of ceramics, high-temperature glass, and high-temperature metals to prevent dust and volatile substances.
  • Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
  • Customizable charging racks according to requirements, for loading the furnace in two levels.
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Phone:+86-13526935931
Email:gwdlthermo@gwdl.com