Wire Wound Tube Furnace - CTF 12 / TZF 12



The CTF single zone and TZF 3-zone wire wound tube furnaces use a wire element that is wound directly onto a fixed diameter integral ceramic work tube.

This simple and economical design of both the CTF and TZF provides a tube furnace that can be used without the need to purchase an additional work tube.

However, should vacuum or a modified atmosphere be required, it is necessary to use a separate additional slide-in work tube in order to provide the required length needed to fit end seals. Similarly, in some circumstances a work tube that has different physical or chemical properties to the fixed work tube may be required.

The TZF heated length is divided into 3 zones. An extended uniform zone in the mid-section of the work tube is achieved with the use of end zone controllers which track the centre zone for temperature and compensate for the loss of heat from the tube furnace ends. The use of an additional slide-in work tube protects the integral work tube for the TZF and heating element.

Standard features

  • 1200°C maximum operating temperature
  • Carbolite Gero 301 controller, with single ramp to set-point & process timer
  • 65 mm, 75 mm or 100 mm work tube inner diameters (CTF)
  • Accepts work tubes with outer diameters of 23 mm to 90 mm (TZF)
  • 450, 550, 700, 850 or 900 mm heated length (varies with model)
  • Integral wirewound work tube
  • Delayed start / process timer function as standard (CTF)
  • Horizontal configuration mounted on control module
  • TZF provides a longer uniform zone than can be achieved in the CTF single zone tube furnace

Options (specify these at time of order)

  • Alternative mounting options are available
  • Optionally configured for 2 phase electrical supply
  • A range of work-tubes are available in a variety of materials
  • Insulation plugs & radiation shields to prevent heat loss & improve uniformity
  • A range of additional work tubes and end seals or work tube packages are available
  • Modified atmosphere and vacuum assemblies are available
  • Over-temperature protection (recommended to protect valuable contents & for unattended operation)
  • A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications
  • Retransmission of setpoint control configuration to facilitate programmed cooling (TFZ)

Control Options

Content may be subject to modifications or corrections