1100°C Vacuum Chamber Furnace (7.5"ID x 8.5"Depth, 7.6 Liter ) with 30 Segment Programable Temperature Controller - VBF-1200X-H8

• <=    1000 °C continuously
• Max.  1100 °C,  < 30 minutes 

• Stainless steel vacuum flange with double high temperature silicone O-ring at front door.
• One needle valve built on the flange is for gas inlet.
• One KF25D port on left side of furnace  is for connection with vacuum pump.
• The water cooling jacket has been installed in the flange. The inlet and outlet ports are located on the left side of the furnace for connecting to the water chiller through two 12 mm dia. polyurethane tubes (the water chiller needs to be order separately. Please click here to review detail info of the water chiller.)
• The Quartz Thermal Block must be placed inside the chamber during operation to avoid the silicone o-ring being damaged by the heat radiation when the temperature is higher than 300°C
• A Quartz Thermal Block included is filled with fibrous alumina inside  and it will provide excellent clean environment and vacuum pressure.
• Optional:   If using the furnace for flat sample, you may order flat sample order  as picture below

• Digital vacuum meter with wide range up to 10^-4 torr is included for vacuum pressure measurement.
• KF25 Vacuum Fitting with KF25 Right-Angle Valve for quick connection to KF25 Bellows.

Vacuum Level is depended on vacuum pump,  connected pipe, inside refractory block's materials etc.  By using KFD25, stainless steel pipe, MTI two stage mechanical pump and KF25 Ball valve, the furnace can achieve vacuum level as the follows:

• 30 m- torr（10^-2 torr）via two stages mechanical pump within 30 minutes without the Quartz Thermal Block.
• 60 m- torr（6x10^-2 torr）via two stages mechanical pump within 30 minutes with the Quartz Thermal Block at 900C.
• Vacuum leak rate at room temp. ≈ 125 mtorr/hour

Vacuum pump  and pipe are not included, please click bold order it separately.

If you want to achieve higher vacuum (<10-5 torr or better)  you must 

Use Turbo-molecular Vacuum Pump Station

Spare seal oring is available at extra cost ( click picture below )

      

• There is a gas inlet (1/4" house adapter )  with a valve on left side of furnace ( see picture left )
• Inert gas and oxygen gas flow can be achieved via the inlet . (Attention: MTI does not recommend using our products under hazardous conditions. We are not liable for any damage incurred under hazardous conditions. If you intend to use hydrogen, however, we feel it's prudent to place the furnace under fume hood.)
• Max. gas pressure shall be less than 1.2 atm.
• You may choose gas mixer to deliver multi-gases to control gas composition and flow-rate (click pictures below to order separately).