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1800°C Bench-top Vacuum* and Atmosphere Tube Furnace (80mm OD) with Kanthal Super-1900 Heating Element - GSL-1800X-KS80

In stock
Item Number: GSL-1800X-KS80
1-2 weeks to delivery for QC


Upgrade to Eurotherm Temp Programmer (single zone) Upgrade + 15" Laptop + Accessories Kit

GSL-1800X-KS80 is a CE certified bench-top tube furnace with Kanthal Super-1900C Grade MoSi2 Heating Elements and high-quality alumina refractory board with ZrO2 liner. Vacuum sealing flanges with valves, vacuum gauge,  and a high purity alumina processing tube (80mm O.Dx 1000mm L) are included for immediate use. The temperature of GSL-1800X-KS80 tube furnace is controlled by a 30 segment programmable high precision SCR (Silicon Controlled Rectifier) digital controller with an accuracy of +/-1 ºC. This tube furnace has a max. working temperature up to 1800 ºC. It is widely used in material & chemical researching labs to sinter all types of new material samples under vacuum and other gas conditions.



Furnace Structure

  • Double layer steel casing with air cooling.
  • Two cooling fan inside to keep case temperature < 60oC.
  • High purity Alumina refractory chamber with 15mm thick 2500ºC grade YSZ ceramic liner for max energy saving.
  • 99.8% purity Alumina tube made in USA, and coming with, vacuum flange, gauge & valves are included

Power Consumption

Max. 7KW

Input Voltage

Single Phase, 220V AC,  50/60 Hz  (50A breaker required)

Max. Working Temperature

  • 1750oC  continuous
  • 1800 oC  Max. < 2 hours

Max. Heating / Cooling Rate

5oC / min ( T< 1600oC ); 2oC / min ( T>1600oC )

Heating Zone

457 mm (18")

Constant Temperature Zone

150 mm (6")

Heating Elements

Kanthal Super-1900 Grade MoSi2 - 330mm L, 8pcs, made in Sweden

Temperature Controller

Temperature controller interface

Optional PC control module

Optional Eurotherm 3204 

Standard temperature controller:
  • Proportional–integral–derivative control (PID control) and auto-tune function
  • 30 segments programmed with ramping, cooling and dwelling steps
  • Built-in over-temperature alarm and thermocouple failure alarm
  • +/- 1 ºC temperature control accuracy
  • Default DB9 PC communication port (PC control module and software are sold separately. See optional.

  • MTS-02 PC control module (also including cable and software) is an add-on option for PC control.
    • It is recommended to purchase the module together with the furnace. We install and test it before shipping. 
    • It is recommended to purchase the laptop (with software pre-installed) from us to avoid software confliction.
    • Please note the module is not sold solely in the future.
  • Eurotherm 3204 Temperature Controller is optional for additional $1795 including installation and testing. This package also includes the communication cable (RS485 - USB) and software CD. Click here to view the full spec.

Tube Materials:  

High purity Al2O3 ceramic, Purity > 99.8% 

Processing Tube

  • Premier Grade alumina tube made in the USA
  • ID: 72mm x OD: 80 mm x 1000 mm length
  • Four 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).

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 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


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 by clicking here

Power Cable & Plug

  • 10 feet length 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 female plug in your lab, or order from link below right (30A plug)
Dimensions 590L x 490W ×760H, mm
Net Weight 150Kg
Shipping Dimensions 49"x40"x47"
Shipping Weight 520lbs


One year limited manufacturer warranty with lifetime 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
  • If you need pass UL or CSA certification, please click picture below to order UL ready version
Application Notes

Operation Instructions

  Video: How To Set Up Furnace    VideoController Operation    How to create Temperature gradient       

Part NO.
Click to order extra
Kanthal Super-1900 Grade MoSi2 - 330mm L 
Flanges (include one pair of flanges with 1/4 rubber hose fittings and vacuum gauge. 4 pcs of vacuum 0-Rings are included.)
1 set
Thermal couple
99.8%High purity Al2O3 Ceramic (made in US)
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.