Box-Type Electric Furnace

1200℃ Box-type High-temperature Furnace. Core Keywords: Silicon Carbide Rod Heating, ±1℃ Precise Temperature Control. Adjustable Heating Rate: 0.1-30℃/min. Three-layer Insulation with Over 80% Energy Saving. Dual-circuit Protection + 360° Rotatable Furnace Door. Supports Computer Curve Storage and Remote Control. Suitable for High-precision High-temperature Experiments in Ceramics, Metallurgy, Material R&D and Other Fields.

Box furnace

Box-Type Electric Furnace

Max. Temperature:1200°C
Chamber Size (mm):300×200×200 (D×W×H)
Overall Dimensions (mm):750×750×750 (L×W×H)
Power Supply (AC):380V
Power:8kW
Temperature Uniformity:±1°C (depending on chamber size)

Product Video

Max. Temperature1200°C
Chamber Size (mm)300×200×200 (D×W×H)
Overall Dimensions (mm)750×750×750 (L×W×H)
Power Supply (AC)380V
Power8kW
Control Range80°C to 1200°C
Temperature SensorK-type thermocouple, measuring range 0–1320°C
Heating Element PositionEvenly distributed on both sides of the chamber
Temperature Control Accuracy±1°C (integrated circuit control, no overshoot)
Temperature Uniformity±1°C (depending on chamber size)
Heating RateAdjustable: max. 30°C/min, min. 1°C/h
Heating ElementSilicon Carbide (SiC) rods. U-type equal-diameter rods made from high-purity α-SiC; features fast heating, high thermal efficiency, long service life, minimal high-temperature deformation, easy installation/operation/maintenance, max. temperature up to 1500°C
Furnace Body FinishCNC-machined body, finished with polishing, grinding, pickling, phosphating, powder coating & high-temperature baking; two-tone appearance, oxidation/acid/alkali/corrosion/high-temperature resistant, easy to clean
Furnace Body StructureAir-cooled double-layer structure with optimized air-guiding baffle for overall cold-air circulation; cools heating element terminals before exhausting, prevents terminal oxidation & ensures a good working environment
Door Opening180° side-opening door, rotatable up to 360° to avoid burns from hot inner surface during loading/unloading; bottom stainless-steel spring-loaded latch ensures secure locking, compensates for refractory expansion, allows free thermal expansion/contraction with effective sealing
Refractory MaterialVacuum-formed high-purity lightweight alumina lining; high-impact areas (door opening, hearth) use lightweight bubble alumina panels; high service temperature, low heat storage, excellent thermal shock resistance & insulation (energy saving >80% vs. traditional furnaces)
Insulation MaterialThree-layer: aluminosilicate fiberboard + alumina fiberboard + polycrystalline alumina fiberboard; energy saving >80% vs. traditional furnaces
External Surface Temp.<45°C during continuous long-term operation
Protection FunctionsIntegrated modular control unit with dual-loop control & protection; includes overshoot, undershoot, thermocouple break, phase loss, overvoltage, overcurrent, overtemperature, current feedback, soft start protection
Control MethodClosed-loop SCR phase-shift control; continuously adjustable output voltage/current/power with constant voltage/current/power operation; inner current loop + outer voltage loop limits output current within rated range under sudden load changes or overcurrent, protects heating elements & maintains stable output
Display ParametersTemperature, segment number, segment time, remaining time, output power %, voltage, current, etc.
PushbuttonsHigh-quality pushbuttons with LED indicators, service life >100,000 cycles
Temperature ProgramIntelligent controller with standard PID, AI tuning (APID) or MPT; self-tuning/self-learning, no overshoot/undershoot; 30-segment programming for arbitrary heating/cooling slopes; supports jump (loop), run, pause, stop & on-the-fly modification; AI curve-fitting algorithm for smooth profile control
Multiple Curves30-segment program supports multiple curve modes: 1 curve (30 segments), 2 curves (14 seg. each), 3 curves (9 seg. each), 5 curves (5 seg. each); curves can be stored and recalled as needed
CommunicationRS485 interface for computer control (start/pause/stop, profile programming/loading, parameter setting); rich PC software displays PV, SV, output, segment time/number, temperature/power curves; profiles can be saved/recalled/modified; supports historical curves & logs with configurable interval (1s–1h) for long-term storage
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