gwdltherm 1400°C Top-Opening Ignition Test Furnace

category	Specification
Furnace size	650 × 750 × 300mm
power supply voltage	380V, 50Hz; 22kW
Number of samples per melting session	30 crucibles, each weighing 65g ( bottom diameter 105mm x top diameter 165mm x height 55mm).
highest temperature	1400°C
Long-term operating temperature	1350°C
Control range	80–1400°C
thermocouple	Platinum-rhodium S type (0–1600°C)
heating element	U- shaped silicon carbide rods are vertically installed on the furnace wall.
Temperature accuracy	±1°C
Uniformity	±1°C (larger furnaces can be adjusted via multi-zone control)
heating rate	Adjustable: Maximum 30°C/ minute (non-linear), minimum 1°C/ hour
Furnace body	CNC machining, acid / heat resistant coating, aesthetically pleasing two-tone finish.
Cooling system	Dual-layer air-cooling structure, directional airflow prevents oxidation
Furnace door mechanism	Electric - pneumatic top-opening type; opening height can be controlled via foot switch or touch screen.

Crucible clamps (custom-made)	Made of 304 stainless steel
Cast iron mold car	Carbon steel casing, powder-coated
Cast iron molds	Used to hold or cool metal samples during high-temperature melting, ensuring complete shaping and facilitating subsequent analysis.
Refractory furnace lining	High-purity alumina lightweight sheet (crack resistant, energy-saving)
Insulation layer	Three layers: alumina fiber + aluminosilicate fiber + polycrystalline alumina
Security Protection	Dual-loop control with overvoltage / overcurrent / overtemperature protection
Display Indicators	Real-time temperature, power output, voltage, current, program segment
communication	RS485 interface ( 1200- meter range) for PC -based curve programming / data logging.
touchscreen	A 7- inch touchscreen allows users to set multiple heating programs, store historical curves and data reports. Displays real-time power and alarm information.

List of main components of Juxing kiln
Serial Number	project	name	Classification						factory	Remark
Serial Number	project	name	1200 degrees	1400 degrees	1600 degrees	1700 degrees	1800 degrees	1900 degrees	factory	Remark
1	shell	Double-layer shell	●	●	●	●	●	●	Juxing Kiln
2	heating element	electric heater	High-temperature alloy resistance wire	silicon carbide rods	silicon molybdenum rod	1800 type silicon molybdenum rod	1850 type silicon molybdenum rod	1900 type silicon molybdenum rod	Juxing Kiln
3	Electrical control section	Temperature controller	858P	858P	858P	858P	858P	858P	Xiamen Yudian
4		thermocouple	K	S	B	B	B	B+ fiber	Taisho/Bright
5		Voltmeter	●	●	●	●	●	●	Chint
6		ammeter	●	●	●	●	●	●	Chint
7		SCR power regulator	●	●	●	●	●	●	Juxing Kiln
8		contactor	●	●	●	●	●	●	Chint/Delixi
9		circuit breaker	●	●	●	●	●	●	Chint/Delixi
10		Button	●	●	●	●	●	●	Chint/Delixi
11		buzzer	●	●	●	●	●	●	Chint/Delixi
12		Fast melting	●	●	●	●	●	●	Mingrong
13		transformer	○	○	●	●	●	●	Juxing Kiln
14	Refractory and heat-insulating furnace	Ceramic fiberboard/module	1260	1500	1700	1800	1850	Zirconia fiber 2100	Juxing Kiln
15		Insulating bricks at the furnace opening (inner door)	○	●	●	●	●	●	Juxing Kiln
16		Sintering plate	Quartz ceramics	Quartz ceramics	Corundum Mullite	Corundum Mullite	Corundum Mullite	Zirconia fiber 2100	Juxing Kiln

gwdltherm-1400°C Electric Top-Opening Ignition Test Furnace