Vacuum Annealing Furnace

Vacuum Annealing Furnace
Product Details

Technical Specifications

Chamber size

100x100x100mm (Width * Height * Depth) The size can be customized

Max. temperature

1200 ℃ (<2hour)

Working temperature


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


Temperature Uniformity

±5℃ over 100 mm @ 1100℃

±3℃ over 80 mm @ 1100℃

Heating rate

0-20 ℃ /min


K type (Pt-Rh to Pt-Rh) with 99.7% purity Alumina tube

Heating element

Heating wire

Max vacuum

0.007 Pa

Furnace Chamber

Three layers of ceramic fiber insulation materials
●  First layer: 1430℃ ceramic fiber board
●  Second layer: 1260℃ ceramic fiber board

Furnace structure

Double layer steel casing with dual cooling fan (water cooling optional)

(surface temperature below 60℃)

Furnace door

●  Front open to aside, high sealing
●  Power cutting off when furnace door open

Outer dimension

About 1220x900x1400mm

Working voltage

110V or 220V, 50HZ/60HZ, 1 phases (As per your order)

Rated power



Net Weight: about 75kgs
Gross Weight: about 95kgs


●  One year limited warranty with lifetime 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.



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. 

●  Refractory door block must be inserted before closing door.

Standard Package  

Electric Furnace

1 set


Furnace Door Block

1 pc


High temperature gloves

1 pair


Crucible clip

1 pc


Operation Manual (English version)

1 book


Optional Spares

B type thermocouple   


Alumina crucible


Furnace Furniture


Gas Vent

Observation Hole


(The furnace may be operated by PC by installing a control software. )