UL Standard 1750C max. Compact Vacuum Tube Furnace (60mm OD) - GSL-1750X-S

GSL-1750X-S  vacuum tube furnace is pre-configurated to be ready to pass UL/CSA certificates.  This furnace has a 60 mm dia alumina processing tube with vacuum flanges and Kanthal Super-1800 MoSi2 heating elements. . It is widely used in material & chemical researching labs to sinter all types of new material samples under vacuum and other gas conditions. The max. heating temperature is 1750ºC. The temperature controller is 30 segments programmable high precision SCR (Silicon Controlled Rectifier) digital controller with an accuracy of +/-1 ºC.  

SPECIFICATIONS:

Model	GSL-1750X-S-K60UL
Working Temperature	800 -1720ºC continuous Max: 1750ºC < 2 hour
Heating Elements	Kathal Super-1800  MoSi2 heating elements - 270mm L ( 4 pcs )  made in Sweden
Furnace Structure	Double-layer steel casing with air cooling. Two cooling fan inside to keep case temperature < 60oC. High purity Alumina refractory chamber with max energy saving. Alumina tube, vacuum flange, gauge & valves are included. Compact design (click picture on left to see dimensions) Such a compact space-saving furnace can be placed on the 600mm x 600mm mobile cart (available in the optional parts list below).
Power Consumption	Max. 3KW
Input Voltage	Single Phase, 220V AC,  50/60 Hz (30A breaker required)
Max. Heating / Cooling Rate	10ºC / min
Heating Zone	120 mm
Constant Temperature Zone	60mm  within ± 5ºC  at 1500oC
Temperature Controller	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. Please click here to learn why SCR is more accurate than SSC (Solid state relay). Built-in over-temperature alarm and protection allow for operation without an attendant. +/- 1 ºC temperature accuracy. RS485 Communication Port. Optional:   The furnace may be operated by a PC by installing a control module. Please order an MTS-02 control module at extra cost.   If you order the PC control module together with the furnace, we will install and test it before shipping. We recommend you to order a computer (laptop) from us to avoid software installation problems. For more information please click here.
Tube Materials	High purity Al2O3 ceramic, Purity > 99.9%
Processing Tube	Premier Grade alumina tube made in USA. 54 mm (I.D) x 60 mm (O.D) x 790 mm length. Four fiberous ceramic tube blocks are included for blocking heat radiation from inside tube. (Ceramic blocks must be fully inserted into the furnace chamber before heating). For 60mm tubes, it is recommended that customers purchase two pairs of tube support to prevent tube from bending under high temperature (please click on the last picture to order).             click here to choose alumina boat
Sealing Flanges	One pair sealing flange with double silicone high-temperature O-ring is included.   Two SS needle valves and one dial vacuum gauge are installed with a flange for immediate use.  Vacuum pressure can reach 50 mTorr by a quality mechanical vacuum pump and 10^-5 torr by turbo molecular pump. Please click the picture below to see flange assembling details.
Fitting Ports	Standard 1/4‘’ Barbed fittings with needle valves. For supplying high-pressure gas, you may replace the standard barbed hose fitting with the 304SS 1/4" Swagelok® Tube Fitting, please click underlined to order. Optional: In order to increase the throughput and achieve high vacuum, you may replace the standard barbed hose fitting with the KF25 adapter, please click the underlined to order. Optional: You may also consider using the parts in below to increase the vacuum efficiency  Please click here to order a digital vacuum gauge for precision vacuum control up to 10-4 torr (see picture below and click to enlarge) You may click here to order flow meter and install in tube flange (see picture below) KF25 Stainless steel Bellows  KF25 Quick Clamps You may order a pressure control module ( click picture below-right ) to keep the chamber at constant pressure
Vacuum Level	Limited by vacuum pump 50 mtorr can be achieved by a mechanical pump 10^-5 torr can be reached by molecular pump  The vacuum pump is not included, please order separately by clicking here
Power Cable & Plug	10 feet long 10-3 AWG heavy duty UL approved power cable is included. Extra length cable can be ordered by click picture below-left The plug is not included. You can order from your local hardware store according to the female plug in your lab, or order from the link below-right (30A plug)     (click here to order plugs from us)
Dimensions	445 L x 380 W x 615 H  mm
Net Weight	150Kg
Shipping Dimensions	38"x 38"x 38"
Shipping Weight	375 lbs
Warranty	One year limited manufacture warranty with life time support (consumable parts such as furnace liner, processing tubes, and O-rings are not covered by the warranty, please order replacements at related products below).
Compliance	CE Certified NRTL or CSA certification is available upon request at the extra cost
Application Notes Click here to learn more about the installation of a gas regulator.	In order to obtain accurate temperature inside tube furnace, you need to perform a temperature calibration before use, please click here to learn how. How to set up ceramic tube and vacuum flange for MTI Tube furnace  Proper placement of tube blocks The tube furnaces with alumina tube are designed for use under vacuum and low pressure < 0.02 MPa Attention:A pressure regulator must be installed on your input gas tank ( click picture below to review ) and have the output gas pressure set below 3 PSI at all times after opening the gas tank with the gas maintained in a continuous flowing condition. Gas build-up with pressure levels exceeding over 3 PSI may cause irreversible damage to the furnace chamber.   Never heat the furnace while the gas release valve is closed and a positive pressure condition exists within the furnace chamber. The pressure gauge must be used to closely monitor the chamber condition at all times during the heating process; please open the gas release valve immediately once the chamber pressure has reached over 3 PSI to prevent unforeseeable damages. The flow rate for gases should be limited to < 200 SCCM ( or 200ml/min ) Vacuum pressures may only be safely used up to 1500°C
Operation Instructions