Discounted 1200°c Bottom-loading Vacuum Furnace (8.6"idx7.6"h) With Rapid Cooling -vbf-1200x-e8 Series [SiF4AZHD]

Features

• Double-layer steel casing with air cooling keeps furnace surface < 60°C
• Water-cooled vacuum flange for better vacuum seal and longer service life
• 8.5" ID Quartz chamber works under both vacuum and gas flow.
• Motor-driven bottom loading for large sample loading at ease.
• The electric sliding door is built to block thermal radiation when heated sample loading down
• Inert gas blow system is installed to quench heated samples faster
• Two precision temperature controllers are included: one for furnace temperature and another for a monitoring temperature change of the sample stage 

Power

• 208-240 VAC, 1 ph, 50/60 Hz.
• 3600 W (20 A power receptacle is required)
• A 10-foot power cable is included but without a plug

Working Temperature

• Fe-Cr-Al doped Mo heating elements. 
• ≤1200°C with inert gas
• ≤1000°C continuous under vacuum
• Heating rate: 20°C/min max

Temperature Uniformity @ 900°C

Temperature Control

• Two 30-segment programmable temperature controllers are included.
• One for controlling furnace heating and one for monitoring sample stage heating and cooling
• Built-in automatic PID control with auto-tune, overheating, and T/C broken protection.
• ±1temperature accuracy.
• Two K-type thermocouples are included
• RS485 communication port
• Optional MTS-02 for remote temperature control and logging at PC

Heating Chamber and
Vacuum-Sealed Flange

• Quartz chamber size: 9" O.D. x 8.5" I.D. x 13.4" L ( 230 OD x 218ID x 340 H, mm)
• Effective heating area: 8.5" ID x 8.5" Depth (218 ID x 216 H mm, 8.6 Liter) ( click pIc1 to see details)
• The quartz heating chamber is replaceable. 
• Water cooling SS304 Vacuum flange with Or-ring fibrous alumina plate is installed on the electric lifting platform to seal the quartz chamber. (Pic, 3)
• One 16L/min recirculating water chiller is included for cooling the flange (pic. 4)

Pic.1   Pic. 2 Pic3

Vacuum and Gas Flow

 

• One KF25 port is built-in for vacuum pump connection.
• One dual-stage rotary vane pump with KF25 below and one angle valve are included. Pic 1
• One Pirani vacuum gauge (up to 10^-4torr) and a mechanical vacuum gauge is included. Pic 2
• Pfeiffer 33 L/s turbopump is available for high vacuum operation up to 10-5 torr Pic3
• One 5L flowmeter with1/4" gas inlet and outlet is included for atmosphere control (Pic.4)

 Pic. 1 Pic. 2Pic. 3 Pic.4

Cooling Chamber 

• CE Certified
• NRTL / CSA Certification is available upon request at the extra cost

• Quartz tube furnace is designed for using under vacuum and low pressure < 0.2 bars / 3 psi / 0.02 MPa
• Attention: A two-stage pressure regulator must be installed on the gas cylinder to limit the pressure to below 3 PSI for safe operation. Click here to learn the installation of a gas regulator.
•  Vacuum pressures in the furnace shall be used below 1000°C under vacuum processing
• The furnace can be used for brazing of two flat samples via top dead weight under vacuum at <1000°C