UL-Standard 1100°C 7.6 Liter Hi-Vacuum Chamber Furnace (UL/CSA ready to pass) - VBF-1200X-H8-UL

Power

Voltage

Working Temperature

• <= 1000 °C continuously

• Max. 1100 °C, < 30 minutes
• Temperature Uniformity: +/- 2°C

Heating Elements

Quartz Tube Size & Effective Heating Area

• Tube size: 8" O.D. x 7.5" I.D x 13.4" L.

• Heating area: 7.5" ID x 8.5" Depth (7.6Liter)

• Uniform Temperature zone: 4"dia x 3.5" depth in center position within +/- 5ºC

• Quartz tube is replaceable ( click picture left to order spare tube )
   

• Stainless steel vacuum flange with dual high temperature silicone O-rings at front door.
• One needle valve is built into the flange for use as gas inlet.
• One KF25D port on left side of furnace for connection to vacuum pump.
• A water cooling jacket has been built inside the flange to protect the vacuum sealing assembly from melting at over 300°C. The inlet and outlet ports located on the left side of furnace are used for connecting to a water chiller through two 12 mm dia. polyurethane tubes (water chiller is sold separately). Please click here to review detailed info of the water chiller.
• A Quartz Thermal Block (filled with fibrous alumina) is included to prevent heat radiation and dissipation. It also provides excellent vacuuming while ensuring a clean environment inside the chamber.
• Optional: If using the furnace for flat samples, a flat sample holder (pictured left-bottom) can be ordered.

Digital Vacuum Gauge & KF25 Fitting

• 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 Pressure
 

Vacuum Level is dependent on the vacuum pump used, connected pipe, interior refractory block's materials etc. By using KFD25, stainless steel pipe, MTI's two stage mechanical pump and KF25 Ball valve, the furnace can achieve vacuum levels below:

• 10 mtorr (10-2 torr）via mechanical pump within 30 minutes withoutThermal Block
• 60 mtor