Small Lab and industry vacuum heat treatment furnace with inert atmosphere gas protection
Laboratory vacuum annealing furnace
1200℃-1800℃ annealing vacuum Furnace
JHP-5 Annealing Furnace uses Resistance wire as heating elements, which can be used up to 1200℃. These compact muffle furnaces are perfect for many applications in laboratory. It is an ideal instrument for materials annealing and sintering in your research.
1. Operation Temperature: 1100℃ (1200℃ for short time).
2. Maximum energy efficiency is achieved by surrounding the chamber with thermal-efficient alumina fiber ceramic insulation.
3. Heavy duty double layer structure with cooling fan. Lower temperature in outside case.
4. PID automatic control via current limiting phase angle fired the resistor, e.g. SCR (Silicon Controlled Rectifier).
5. Power control with 51 segments programmable
Ⅰ. Technical Specifications
|Max. temperature||1200 C (<2hour)|
|Working temperature||1100 C|
PID automatic control via SCR (Silicon Controlled Rectifier) power control with phase angle fired,
current limiting resistor.
|30 programmable segments for precise control of heating rate, cooling rate and dwell time.|
|Built in PID Auto-Tune function with overheating & broken thermocouple broken protection.|
|Over temperature protection and alarm allows for operation without attendant.|
|Temperature Uniformity||±5C over 120mm @ 1100C|
|±3C over 80mm @ 1100C|
|Heating rate||0-20C /min|
|Thermocouple||K type with 99.7% purity Alumina tube|
|Heating element||Quality heating wire|
|Furnace Chamber||Two layers of ceramic fiber insulation materials|
First layer: 1430°C ceramic fiber board, density 450kgs/m3. Thermal conductivity (1200℃) is
|Second layer: 1260°C ceramic fiber board, density 350kgs/m3.|
|Furnace structure||Double layer steel casing with dual cooling fan, surface temperature below 60oC|
|Furnace door||Front-side open|
|Power cutting off when furnace door open|
|Working voltage||220V, 50HZ|
One year limited warranty with life time support. (Consumable parts such as heating elements
and crucibles are not covered by the warranty, please order the replacement at related products)
ATTENTION: Any damages caused by the use of corrosive and acidic gases are not under the
coverage of One Year Limited Warranty.
|Ⅱ. Application Notes|
Stander chamber size (mm)
|Cooling rate shall also not exceed 10℃ /min.|
|Toxic or explosive gases are not recommended for use with this furnace without necessary|
|safety controls and supervision.|
Small cracks may appear on the surface of the refractory ceramics over extended use.
This is a normal occurrence and the cracks may be repaired with alumina coating.
|Refractory door block must be inserted before closing door.|
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