Very high temperature Tube furnaces 1700°C.

ST17 range up to 1700°C.

  • 4 Standard models
  • 1800°C. maximum temperature option
  • Alternative sizes made to order
  • Economical to operate
  • Efficient Low thermal mass insulation
  • Molybdenum disilicide elements
  • Microprocessor based digital control
  • Independent adjustable over heat protection
  • Recrystallised alumina work tube


Constructed using a robust casing for bench mounting. A ventilated double skin construction ensures that the furnace casing remains relatively cool.

The furnace lining consists of high efficiency graded low thermal mass insulation to reduce heat losses and enhance a uniform working zone. A recrystallised alumina work tube (open both ends) can be supplied for use with the furnace, and this is supported at each end by hardened fibre insulation.

Heating:   The heating elements are molybdenum disilicide U shaped elements mounted vertically in cavities symmetrically positioned at each side of the work tube. The elements are on low voltage, provided by an integral transformer within the oven casing, and power switching is by means of thyristors for accuracy and reliability.

Controls:   The controls are on one side and below the furnace body for ease of vision. A microprocessor based digital temperature controller with set-point and process displays, provides accurate fully automatic control with a variable ramp to temperature rate control. An adjustable independent digital over-temperature protection controller is fitted as standard. Controls include thermocouple break protection.

Other sizes and 1800°C versions, as well as multi-tube and split tube furnaces can be made to order. Vertical and single open ended tube furnaces are also available.

Single tube furnaces (Horizontal tube layout) 

Model No Max Temp
Work tube / Bore
up to Dia. mm
length mm
External Dimensions mm
H   x   L   x   D
ST17/75/150 1700 75w 150 1500 x 650 x 650 4
ST17/75/300 1700 75w 300 1500 x 700 x 650 6
ST17/75/450 1700 75w 450 1500 x 750 x 650 9
ST17/75/610 1700 75w 610 1500 x 950 x 650 9
w = Work tube required on these models with inside diameter as shown.

Options include: alternative models of temperature controls / programmers / recorders / communications / timers / tube end caps, seals and baffles etc.

The information and data herein are offered solely for your consideration and guidance and are not to be construed as a warranty or specification.

Nothing contained herein is to be interpreted as authorisation to practice a patented invention without a licence.