1000℃ Vacuum Atmosphere Box Furnace Top Bottom Heating - Luoyang Anjing Intelligent Equipment Co.

Item	Specification
Rating Temperature	1000℃
Model	AJ-1000LB
Effective Loading Space	330mm(L) × 330mm(W) × 100mm(H)
Power Supply AC	380V
Power	10KW
Temperature Control Range	80~1000℃
Temperature Measuring Element	Type K Thermocouple, Measuring Range:0-1320℃
Heating Element Installation	Evenly arranged on both sides of chamber; embedded on top & bottom plane, upper and lower layout with ceramic sheath protection
Temperature Control Accuracy	±1℃ (Integrated circuit control, no overshoot)
Temperature Uniformity	±5℃ (Depends on chamber dimension)
Heating Rate	Adjustable; Max 15℃/min, Min 1℃/h
Furnace Body	CNC machined, processed by polishing, grinding, pickling, phosphating, powder coating and high-temperature baking. Novel appearance, anti-oxidation, acid & alkali resistance, high temperature resistance and easy cleaning
Furnace Structure	Flat roof structure; reaction sintered SiC beam & support plate. ≥2 layers 1400℃ fiber board, ≥1 layer 1260℃ fiber blanket, ≥1 layer 1000℃ fiber blanket, total thickness ≥200mm
Door Opening Method	Axial 180° side opening, door with 360° rotation. Stainless steel spring lock installed below door. Spring absorbs thermal expansion of refractory to guarantee free expansion & sealing, avoid arm burning during high temp material taking
Refractory Material	Vacuum formed high-purity lightweight alumina lining; lightweight hollow sphere alumina plate applied at easily-impacted positions such as furnace mouth & bottom. Low heat storage, good thermal shock resistance and thermal insulation
Shell Temperature	＜45℃ under long-term continuous operation without shutdown
Protection	Integrated modular control unit, dual-loop control & dual-loop protection. Protection functions: overshoot, under-regulation, thermocouple break, phase loss, overvoltage, overcurrent, overtemperature, current feedback, soft start
Control System	Closed-loop SCR module with phase-shift trigger. Continuously adjustable output voltage/current/power, constant voltage / constant current / constant power. Inner & outer double loop current limiting to protect heating elements from surge current & voltage
Temperature Curve Setting	Intelligent temperature controller with PID, APID, MPT modes. Auto-tuning & self-learning, no overshoot/under-regulation. 50-segment program control, arbitrary heating/cooling slope, cycle jump, run/pause/stop. Program editable during operation. AI curve fitting for smooth temperature profile
Multi-curve Input	50-segment programmable function
Gas Inlet	1 pc with flowmeter & valve. Flow rate set by time segment via touch screen; real-time flow & pressure displayed and recorded. Nitrogen injected from furnace bottom, flowmeter mounted at furnace bottom
Gas Outlet	1 pc with regulating valve, L-shaped vent. Main inlet pipe divided into 6 branches; 4 small holes on side of left/right branch pipes, top sealed to prevent direct airflow onto samples. Exhaust pipe SUS304 stainless steel, ceramic lining at furnace connection. Branch pipe connected to main pipe via flared joint. Temperature sensor fitted on main exhaust pipe, temperature displayed on touch screen. Manual ceramic slide valve installed on exhaust pipeline
Fast Cooling	Max 5℃/min (full inlet & exhaust opening), adjustment accuracy:1℃/min
H₂O & O₂ Control	Equipped with oxygen analyzer; H₂O+O₂ ≤90ppm
Support Rollers	Reaction sintered SiC, longitudinal arrangement for convenient crucible handling
Variable Frequency Exhaust Fan	Automatic furnace pressure control, pressure displayed & recorded on touch screen. SUS304 impeller & housing, airflow ≥200m³/h, temperature resistance ≥350℃, wind pressure ≥1000Pa
Test Ports	1. Atmosphere test port at furnace rear; 2. Furnace pressure monitoring port with pressure gauge; 3. Online thermocouple port, extra symmetric temperature port with cap for sealing when idle

Vacuum Atmosphere Chamber Furnace (Top and Bottom Heating)

Vacuum Atmosphere Chamber Furnace (Top and Bottom Heating)

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