Product Details

Brief introduction
GSL-1100X-50-LVT vacuum tube furnace is a ready to pass UL or CSA certification (UL61010 or SPE1000) on customer side at customer cost tube furnace for heating samples up to 1100°C. The right side of the furnace system is composed of a KF25 Gas Outlet with Digital Vacuum Gauge connected to Mechanical Pump with Exhaust Filter. The 1/4'' barbed gas inlet on the left, allows the furnace to heat samples in vacuum up to 1E-2 Torr or with flowing gas. In addition, an OMEGA 1/4’’ O.D K Type Thermal Couple is included for attaching to the left flange. It can be inserted into the tube to accurately measure the sample’s temperature by the readout from the OMEGA Calibrator. Built-in precision temperature controller will provide up to 30 segments of heating and cooling steps with +/- 1 °C accuracy.
Technical parameters

Furnace Structure	Energy saving high purity Al2O3 fibrous insulation liner Stainless steel shells with adjustable height stand Adjust three knobs on the back to flexibly change the furnace's vertical position within travel distance (from control box platform to lower end of the chamber): 4.5'' ~ 12'' (without hanger and supporter) Multiple configurations for various thermal processing needs Multi-position adjustable Using as a Vertical muffle furnace Fixing Knobs for Position Adjustment
Furnace Casing	Energy saving high purity Al2O3 fibrous insulation Stainless steel shells with adjustable height stand
Power	1500W
Voltage	AC 110V or AC 220V 50/60 Hz -- please select the voltage in the option bar
Working Temperature	Max. Temperature: 1100 °C (< 1 hr) Continuous working temperature: 1000 °C
Heating Rate	Max. Heating Rate: 20°C /min
Temperature Distribution
Heating Zone	Heating Zone length: 8" (200mm) Constant Temperature Zone: 100mm (+/-1°C @ 1000 °C)
Temperature controller	PID automatic control and auto-tune function. 30 programmable segments for precise process Built in protection for overheated and broken Thermal couple. Temperature Accuracy: +/- 1 °C K-type thermal couple
Temperature Calibrator	Thermal Couples: K type 12" Length with Alloy sheath and Male Plug for Calibration up to 1335°C Portable Digital Temperature Calibrator with USB and RS232 Interface & Software - NIST certificate
Heating Elements	Fe-Cr-Al Alloy doped by Mo
Tube Size and Materials	Quartz Tube with OD: 50; ID 43: Length: 600 Two fibrous ceramic tube blocks are included for blocking heat radiation from inside tube. (Ceramic blocks must be fully inserted into the furnace chamber before heating) Quartz blocks (optional) are ideal for cleaner and higher vacuum efficiency.
Vacuum Sealing Flanges	Stainless Steel Vacuum Flanges (Left with 1/4 barb fitting, Digital Vacuum Gauge and Thermocouple feedthrough, right with KF25 port and Right Angle Valve)
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
Vacuum Pump and Vacuum Level	Double Step Rotary Vane Vacuum Pump EQ-2TW-4C (110V, 226 L/m) with Exhaust Filter & KF-D25 Inlet with Vacuum Bellows and KF25 Clamp or Double Stage Rotary Vane Vacuum Pump EQ-FYP-Pump (220V,156L/m) with oil trap, Exhaust Filter, Bellow& KF-D25 Inlet and KF25 Clamp are included. Vacuum Pressure can reach 1E-2 Torr ( 50 m-torr) 10^-5 torr can be reached by molecular pump
Dimensions	10" x 15" x 16" (26 x38 x40 cm) (D x H x W)
Net Weight	100 lbs
Shipping Dimensions	40"(L) x 26"(W) x 35"(H)
Shipping Weight	180 lbs
Warranty	One-year limited warranty (Consumable parts such as processing tubes and o-rings are not covered by the warranty, please order the replacement at related products below.)
Compliance	CE Certified
Application Notes	Tube furnaces with quartz tubes are 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. Vacuum limit definition for all quartz tube furnaces: * Vacuum pressures may only be safely used up to 1000°C The flow rate for gases should be limited to<200 SCCM (or 200ml/min) for reducing thermal shocks to the tube In order obtain accurate temperature inside tube furnace, please click here to learn how to calibrate the temperature on your own. How to set up tube and vacuum flange for MTI tube furnaces.

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