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1700ºC Vacuum* and Atmosphere Tube Furnace (60, 80, 100mm optional tube size) with complete accessory - GSL-1700X-UL series

Transported by LTL Freight (Truck)

Product Options

tube size:


Upgrade to Eurotherm Temp Programmer (single zone) Upgrade + 15" Laptop + Accessories Kit
GSL-1700X-UL is UL/CSA ready to pass bench-top 4” tube furnace with 1800 Grade 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. Vacuum sealing assembly is installed with 1/4" gas pipe adaptor. It is controlled by a 30segment programmable high precision SCR (Silicon Controlled Rectifier) digital controller with accuracy of +/-1 oC. This tube furnace has a max. working temperature up to 1700ºC. Tube size can be selected in option bar.

GSL-1700X-UL-60 GSL-1700X-UL-80 GSL-1700X-UL-4
Tube Size
2 3/8"x 40"(60OD x 54IDx 1000mm L)
3.15"x 40" (80OD x 74ID x 1000mm L)
4" x 40" (101 OD x 92 ID x 1000mm L)
 Furnace Structure  
  • Double layer steel casing with air cooling.   
  • Two cooling fan inside to keep  case temperature < 55ºC.  
  • High purity Alumina refractory chamber with 10mm thick 2500ºC grade YSZ ceramic liner.  

Max. 5.2KW 
Single Phase, 220V AC, 50/60 Hz (40A breaker required)
Max. Working Temperature
1700ºC < 1 hour 
Continuous Working Temperature
Max. Heating/ Cooling Rate
5ºC / min 
Heating Zone
457 mm (18")
Constant Temperature Zone
150 mm (6")
Heating Elements
Super 1800ºC grade MoSi2 heating elements (30 x 330mm), 8pcs
Temperature Controller
  • PID automatic control via SCR (Silicon Controlled Rectifier) power control with phase angle fired, current limitingresistor.
  • 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 allows for operation without attendant.
  • +/- 1 ºC temperature accuracy.
  • RS485 Communication Port.
  • Optional:  
    • The furnace may be operated by PC by installing a control module. Please order a 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.
Sealing Flanges
  • One pair of sealing flanges with double silicone high temperature O-rings is included.
  • Two SS needle valves and one dial vacuum gauge are installed on flanges for immediate use.
Fitting Ports

Vacuum Level
 Limited by vacuum pump
  • 50 mtorr can be achieved by mechanical pump
  • 10^-5 torr can be reached by molecular pump
 Vacuum pump is not included, please order separately at related products section
Power Plug & Cable
  • 10 feet length 10-3 AWG heavy duty UL approven power cable is included. Extra length cable can be ordered by click picture below-left
  • Plug is not included. You can order from your local haedware store according to female plug in your lab, or order from link below-right (30A plug)
                (click here to order plugs from us)

Dimensions 590 L x 490 W x 760 H  mm
Net Weight 168 kg (370 lbs)
Shipping Dimensions 48" L x 40" W x 47" H
Shipping Weight 218 kg (480 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).
  • CE Certified
  • All electric components ( >24V) are UL / MET / CSA certified
  • The furnace is ready to pass TUV(UL61010)  or CSA certification at extra cost. ( please click marks below to learn details )
Application Notes
  • Two fiberous ceramic tube blocks are included for blocking heat radiation frominside tube (Ceramic blocks must be fully inserted into the furnace chamber before heating).


Operation Instructions                     


How to set up the furnace

Controller Operation Demo Video

How to create Temperature gradient

Flanges set and sealing O-ring
1 set
1000mm L 99.8% high purity Al2O3 ceramic processing tube (made in US) (O.D is selected by customer)
Alumina Foam Tube Blocks
furnace handle hook
Part No.
Quick Link
KF-D25 series Vacuum Suite(vacuum pump, vacuum ball valve, vacuum bellows, quick clamps, KF adapter) Also you may buy individually.
Temperature Control System for controlling MTI's furnace by using computer
Compact Digital Vacuum Gauge & Controller with Power Supply (Up to 10-4 Torr)
Heavy Duty Mobile Car for All MTI Tube and Box Furnaces
  Gas mix station (Float flow meter / Mass flow meter) (2, 3, 4channels selectable)
Vacuum flange fittings 
High vacuum station (Mechanical pump + turbo molecular pump.)
Compact Flow Meter (float flow meter / mass flow meter)
Ceramic Boat/crucible


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1. Prices listed online are valid for US market and whom pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor cost.
3. The prices listed are subject to change without notice.