NST-1400C Split Tube Furnace With Optional 1.6 – 4″ Tube & 10″ Long Heating Zone

  • Model Number:NST-KTL1400
  • Dimension(L*W*H):650x450x670mm
  • Compliance:CE Certified
  • Warranty:One years limited warranty with lifetime technical support
  • Payment:L/C D/A D/P T/T Western Union
  • Delivery Time:15 day


NST 1400°C Split Tube Furnace with Optional 1.6 – 4″ Tube & 10″ Long Heating Zone


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TMAX-KTL1400 is a CE certified compact and energy saving split tube furnace with a max. working temperature of 1400°C. Built-in precision temperature controller can provide up to 40 segments of heating and cooling steps with +/- 1 °C accuracy. The furnace include a working tube vacuum flange and refractory ceramic blocks based on your application needs.




KTL1400-I KTL1400-II KTL1400-III



2.5KW 4KW 4KW 6KW

Tube Size

40mm O.D x 800mm L

60mm O.D x 1000mm L

 80mm O.D x 1000mm L  100mm O.D x 1000mm L

Product Dimensions (mm)

400x260x565 650x450x670  650x450x670  650x500x700

Heating Zone length

200 mm heating zone 260 mm heating zone 260 mm heating zone 260 mm heating zone


·         AC 220 Single Phase, 50/60 Hz

Temperature range

100~1300° C (Continuous); 1400 C (<1 hour)

Max. Heating Rate

<= 20° C /min

Temperature Controllers

·         Digital controllers with 40 programmable segments for precise control of heating rate, cooling rate and dwell time.

·         Built in PID Auto-Tune function with overheating & broken thermocouple protection.

·         Over temperature protection and alarm allows for operation without attendant(s).

·         +/- 1 ºC temperature accuracy.

·         Two K-type thermocouples (one for each zone).

·         RS485 Communications Port.

Thermal Couples

·         K type

Temperature Accuracy

+/- 1° C

Heating Element

Fe-Cr-Al Alloy doped by Mo

Vacuum Flange & Fitting Ports

·         One pair of SS 304 vacuum flange with double high-temperature silicone O-rings are Included

·         One Vacuum pressure gauge is installed, one digital vacuum gauge is available upon request at extra cost

·         The flange set has two 1/4” Bard fittings, two needle valve, one set of KF25 quick clamp, one blank flange fitting, 1/4” tube feedthrough port (for 1/4″ O.D thermocouple insert) and a KF25 vacuum port.

·         Vacuum level can reach 10^-2 torr by quality mechanical vacuum pump and 10^-5 torr by molecular pump

 Application Notes ·         Tube furnaces with quartz tubes are designed for using under vacuum and low pressure < 0.2 bars / 3 psi / 0.02 MPa.Vacuum pressure may only be safely used up to 1000°C. The flow rate for gasses should be limited to < 200 SCCM (or 200 ml/min) for reducing thermal shocks to the tube.

·         Attention: A two-stage pressure regulator must be installed on a gas cylinder to limit the pressure to below 3 PSI for safe operation.


One year limited warranty with lifetime support.




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