AJ-1700VSF 1700°C Vacuum Atmosphere Box Furnace for Sintering - Luoyang Anjing Intelligent Equipment Co.

Equipment name: 1700°C vacuum atmosphere box-type electric furnace
Furnace chamber dimensions: 500*300*300mm
The AJ-VSF series 1700°C vacuum atmosphere box-type electric furnace, as shown in the figure, integrates a temperature control system, vacuum furnace chamber, vacuum pump, gas circuit, pressure protection, gas flow control, positive and negative pressure display, and water circulation pump. The water circulation tank and the furnace body are powder bodies. The furnace lining is made of imported vacuum-formed high-purity alumina lightweight material.
It uses imported 1800-type molybdenum disilicide heating elements as heating elements; it is a specialized device developed for laboratories in institutions of higher education and scientific research institutes, as well as industrial and mining enterprises, for sintering, melting, analyzing, and producing ceramics, metallurgy, electronics, glass, chemicals, machinery, refractory materials, new material development, special materials, building materials, metals, non-metals, and other chemical compounds.
The control panel is equipped with an intelligent temperature regulator, control power switch, main heating work/stop buttons, voltage and current meters, computer interface, water pump switch, vacuum pump switch, gas flow meter, positive and negative pressure gauge, electric contact pressure gauge, and valves, so that the working status of the system can be observed at any time. This product adopts a reliable integrated circuit, provides a good working environment, and is resistant to interference. At the highest temperature, the outer shell temperature of the furnace body is <=40°C, which greatly improves the working environment. It uses microcomputer program control, can program curves, and fully automatically heats up/cools down. Temperature control parameters and programs can be modified during operation, making it flexible and convenient, and simple to operate.
Temperature control accuracy: +/-1°C without overshoot. Constant temperature accuracy: +/-1°C. The heating speed is fast, with a maximum heating rate of <=45/min.
The furnace chamber material is entirely made of imported vacuum-formed high-purity alumina lightweight material. It has a high service temperature, small heat storage, resistance to rapid heating and cooling, does not crack, does not shed slag, and has good insulation performance (energy-saving effect is more than 60% that of old-style electric furnaces). The structure is reasonable, with inner and outer double-layer furnace sleeves and air-cooled heat dissipation, which can greatly shorten the test cycle.

Category	Parameter
Rated Temperature	1700℃
AC Power Supply	380V
Max Working Temperature	1750℃
Long-term Working Temperature	1700℃
Temperature Control Range	50～1700℃
Temperature Sensor	Type B Thermocouple, measuring range: 0-1820℃
Heating Element	High-temperature 1800 U-type Si-Mo Rod
Heating Element Installation Position	Both sides of furnace chamber (Imported 1800-type Si-Mo heating rods)
Temperature Control Accuracy	±1℃ (Integrated circuit control, no overshoot)
Furnace Temperature Uniformity	±1℃ (Depends on furnace chamber size. Multi-point control is available for large chambers to achieve better temperature uniformity)
Heating Rate	Adjustable; Max 40℃/min, Min 1℃/h
Heating Element Installation & Replacement Structure	The sealed top cover of vacuum atmosphere furnace is equipped with a mechanical lifting mechanism. The cover can be lifted and rotated for easy operation, saving labor and time
Furnace Body	CNC machined, polished, ground, pickled, phosphated, powder-coated and high-temperature baked; two-tone appearance, anti-oxidation, acid & alkali resistant, high temperature resistant and easy to clean
Furnace Body Structure	Air-cooled double-layer furnace body
Furnace Door Opening Mode	Axial 180° side opening; the door can rotate 360° to avoid burns from hot inner surface during material taking
Water Cooling Configuration	Equipped with one set of 2P chiller
Water Cooling Zones	Furnace mouth, furnace door and furnace top of inner shell
Circulating Water Radiator	Multi-channel pure aluminum water cooling fins
Vacuum Pump	Two-stage direct rotary vane vacuum pump
Vacuum Degree	-0.1MPa (indicated by pointer gauge)
Pressure Resistance	Furnace chamber plate thickness: 6-20mm, double-sided welding, withstand positive pressure up to 0.1MPa
Gas Circuit Valves	Imported stainless steel valves
Pressure Detection	Pointer gauge for both positive and negative pressure (digital vacuum gauge optional)
Gas Flow Meter	2 pcs float flowmeters (digital mass flowmeter optional for higher precision)
Pressure Protection System	When overpressure occurs, it automatically closes air inlet valve, opens exhaust valve and triggers audible & visual alarm to release pressure and protect the furnace
Gas Leakage Alarm	Optional. When hazardous gas concentration exceeds threshold, the system shuts down furnace, cuts off gas supply, opens exhaust and ventilation for safety
Applicable Atmospheres	Hydrogen, Nitrogen, Argon, Carbon Monoxide, Oxygen, etc.
Refractory Material	Liner: Vacuum formed high-purity alumina fiber lightweight board; Furnace bottom: High-purity lightweight hollow ball alumina board. Low heat storage, excellent thermal shock resistance, no cracking or slag dropping
Thermal Insulation Structure	4-layer insulation: alumina fiber cotton, alumina fiber board, alumina polycrystalline fiber board. Higher energy efficiency than old-style furnaces
Outer Shell Temperature	Less than 45℃ under continuous non-stop operation
Safety Protection	Integrated modular control unit, dual-loop control & protection. Protection functions: overshoot, over-temperature, thermocouple break, phase loss, overvoltage, overcurrent, current feedback, soft start, etc.
Control Mode	Closed-loop SCR module trigger control, phase-shift trigger or zero-cross trigger. Adjustable output voltage/current/power; constant voltage / constant current / constant power mode available. Current limiting protects heating elements from surge current and voltage
Display Contents	Temperature, segment number, segment time, remaining time, output power percentage, voltage, current, etc.
Control Buttons	With LED indicator, service life over 100,000 operations
Temperature Curve Setting	Intelligent temperature controller, PID / APID / MPT auto-tuning. Standard 30-segment program (50-segment customizable). Supports heating/cooling, cycle, pause, stop, and online curve modification
Multi-curve Storage & Calling	Max 30(50) segments for one single curve; curve allocation: 2 curves ×14(28) segments, 3 curves ×9(15) segments, 5 curves ×5(9) segments. Curves can be called arbitrarily
Communication Interface	RS485 interface, max communication distance 1700m. PC remote control: start / pause / stop, curve editing, parameter setting, data logging. Historical curves & reports can be saved, logging interval 1s~1h adjustable
Standard Accessories	2 pcs heating elements, 2 sets of rod fixtures, 1 furnace door heat plug, 1 crucible tongs, 1 pair of high-temperature gloves

1700°C VSF Vacuum Atmosphere Sintering Furnace

1700°C VSF Vacuum Atmosphere Sintering Furnace

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