high temperature tube furnaces

STF High Temperature Tube Furnaces

The 1500°C and 1600°C tube furnace ranges utilise silicon carbide heating elements arranged in a heated chamber surrounding the work tube, and provide even heating of the tube surface for maximum temperature uniformity. SiC furnaces can be used either horizontally or vertically and are offered with two heated lengths and two temperature ranges.

Model STF
Max Temp (°C) 1500 1500 1600 1600
Tube Inside dia (mm) 75 (note b) 75 (note b) 75 (note b) 75 (note b)
Heated Length (mm) 450 610 450 610
Overall Length (mm) 900 1200 900 1200
Uniformity measured
at temp °C
1400 1400 1500 1500
Uniformity measured
using specified
tube diameter (mm)
75 (note g) 75 (note g) 75 (note g) 75 (note g)
Uniform Length
350 500 350 500
Heat up
(mins) (note k)
(note c) (note c) (note c) (note c)
Horiz or Vert use Option Option Option Option
Max power (kW) 5.0 6.0 6.0 7.0
Holding Power (kW)
(note d)
3.8 4.2 4.0 4.5
External height (mm) 640 640 640 640
External width (mm) 830 1130 830 1130
External depth (mm) 420 420 420 420
Note a: Maximum useable diameter.
Note b: Maximum tube inside diameter.
Note c: Heat up rate will vary with work tube size and material.
Note d: Holding power at 100°C below maximum, tube ends insulated. Work tube length = overall furnace length
Note g: Uniformity is measured with the tube diameter shown and tube end insulation fitted.
Note h: Information available on request - Heat up rate and uniformity vary with the application.
Note k: To 100°C below maximum temperature.

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Keison International Ltd. trading as:
Keison Products, VoIPon Solutions & 4Gon
keison VoIPon Solutions 4Gon