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Vacuum Crucible Furnace
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Product: Views:106Vacuum Crucible Furnace 
Unit price: Negotiable
Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2017-09-23 15:01

This vacuum crucible furnace has a unique ceramic fiber insulation around chamber, the chamber can provide excellent uniformity temperature and energy efficiency.Its crucible is made of high-purity quartz.The heating element is embedded in the insulation for maximum heat transfer to the chamber.Max. temperature can reach 1200℃.

It is widely used in the field of ceramic, metallurgy,electronic, chemical,machinery, anti-fire material, new material develop,special material, building material for calcining high purity compound under the condition of inert gas, also can be used for annealing or roasting and sintering ceramic material.

1. High purity quartz crucible
2. Designed for sintering ceramic parts, component, materials etc.
3. Stainless steel vacuum flange with one two ball valves and vacuum gauge is included for immediate use.
4. Simple operation process through 30 segment PID control panel.
5.One pcs refractory disk which shall be put top of inside quartz liner to protect stainless steel from heat damage.
6.Better temperature uniformity and can be flowed into different inert gas or draw out to vacuum.

Technical Specifications

Crucible size

Dia.40xheight300mm   Dia.60xheight300mm
Dia.80xheight300mm   Dia.100xheight300mm   
Dia.120xheight300mm  Dia.240xheight220mm

Max. temperature

1200 ℃  (<2hour)

Working temperature

0-1100 ℃

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


Heating rate

0-20 ℃ /min


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

Heating element

Resistance wires

Furnace Chamber

Two 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, surface temperature below 60℃

Furnace door

●  Front open to aside
●  Power cutting off when furnace door open

Working voltage

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


●  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 20 ℃/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.


Should the vacuum crucible 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.