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\\1200C-1800C Laboratory vacuum annealing 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.

Features
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
 Chamber size  200x200x200mm(width*height*depth)(8Liter)
 Max. temperature  1200 C (<2hour)
 Working temperature  1100 C
 Temperature controlling  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 accuracy  ±1C
 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 only 0.18W/m.k.
 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
 Rated power  5KW
 Warranty  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.
 Certifications  CE
 Ⅱ. Application Notes
Using Attentions  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. 
Stander chamber 
size (mm)
 Refractory door block must be inserted before closing door.
 100x100x100      120x120x130     150x150x150      150x150x200
 200x200x200      200x200x300     250x250x300      300x300x300
 300x300x400      350x350x500     400x400x400      450x450x450
 500x500x500      600x600x600     800x800x800      900x900x900