APPLICATIONS

A top-loading smelting furnace consists of a shell, furnace chamber, heating element, and temperature control system. This furnace operates periodically. It has a cylindrical deep-well body structure, and the workpiece is vertically placed from the top or using a special hanging tool for heating.

The furnace can also be lined with silicon carbide, graphite, and other crucibles for melting aluminum, gold, silver, copper, and other precious metals. It is used for casting and molding precision castings under high temperature. The heating elements are distributed around the furnace, ensuring a uniform high-temperature field.

It can meet the testing and production requirements of various materials based on process necessities like mechanical stirring at the furnace top or a temperature-measuring device in the crucible. This product is primarily used in the high-temperature sintering and melting heat treatment field of metal alloys, inorganic non-metallic compound materials, and ceramic materials.

standard features

• The smelting furnace’s outer casing is made of Q235 low carbon steel, featuring electrostatic and corrosion resistance on the surface.
• The sturdy double-layer metal frame, combined with a convection air insulation structure, keeps the furnace surface temperature low.
• The chamber is insulated with lightweight alumina ceramic fiber for maximum temperature stability and uniformity, as well as low energy consumption.
• Integrated top cover structure, easy to operate.
• High-quality heating elements are distributed throughout the furnace cavity, freely radiating heat for energy-efficient operation and offering a long service life.
• The heating elements are evenly distributed around the furnace, thus achieving good uniformity inside the furnace.
• Programmable digital PID temperature controller, with SCR/SSR control, can set the heating curve and program 30 segments；program heating, program insulation, program cooling, can meet the requirements of continuous constant temperature and temperature control.
• The temperature control is precise, with minimal temperature fluctuations. It includes temperature compensation and calibration functions, with an accuracy of ±1℃.
• The device features a circuit breaker that trips automatically during a leakage or short circuit, safeguarding both equipment and operators.
• An international standard thermocouple with long service life.
• The structure of smelting furnace is integrated, saving space, with a beautiful design.
• Standard configurations: 1. Furnace body -1 set 2. Temperature controller -1 set 3. Power cord -3 meters 4. Thermocouple -1 set 5. Manual -1 copy 6. Crucible pliers -1 set 7. High temperature gloves -1 pair
• Quality Certificates: CE, SGS, ISO9001, TUV
• Warranty: one year，life long technical support

technical details(models)

Models	Chamber Size (mm)	Max temp	Continous temp	Heating element	Thermocouple	Voltage/Power
STJ-120-12	Ø120×300	1200℃	1100℃	HRE	N type	220V/3KW
STJ-200-12	Ø200×300	1200℃	1100℃	HRE	N type	220V/5KW
STJ-300-12	Ø300×300	1200℃	1100℃	HRE	N type	380V/9KW
STJ-200-14	200x200x200	1400℃	1350℃	SiC	S type	220V/5KW
STJ-300-14	300x300x300	1400℃	1350℃	SiC	S type	380V/9KW
STJ-500-14	500x500x500	1400℃	1350℃	SiC	S type	380V/25KW
STJ-200-17	200x200x200	1700℃	1600℃	MoSi2	B type	220V/5KW
STJ-300-17	300x300x300	1700℃	1600℃	MoSi2	B type	380V/13KW
STJ-500-17	500x500x500	1700℃	1600℃	MoSi2	B type	380V/25KW
OEM	Any size