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Vacuum Annealing Furnace
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Product: Views:336Vacuum Annealing Furnace 
Unit price: Negotiable
Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2017-09-08 04:59

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 60oC)

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. )

Should the vacuum annealing furnace caters to your requirement, welcome to buy the product with us. As one of the leading manufacturers of various electric furnaces in China, we will also offer you the customized service with cheap price.