Carbolite Gero Ltd - part of Verder Scientific

- Model CTF12/TZF12 - Wire Wound Tube Furnaces

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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.

  • 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)
  • 38 mm, 65 mm, 75 mm or 100 mm work tube inner diameters (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

  • A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications
  • Over-temperature protection (recommended to protect valuable contents & for unattended operation)
  • A range of additional work tubes, end seals and work tube packages is available for use with modified atmosphere and/or vacuum
  • Vacuum packages with a choice of rotary vane pump or turbomolecular pump are available for furnaces with tube inner diameters of 60 mm and above
  • Insulation plugs & radiation shields to prevent heat loss & improve uniformity
  • Retransmission of setpoint control configuration to facilitate programmed cooling (TFZ)
  • Alternative mounting options are available
  • Optionally configured for 2 phase electrical supply

CTF 12/65/550
Max temp (°C): 1200
Number of heated zones: Single Zone
Dimensions: Fixed tube inner diameter (mm): 65
Dimensions: Heated length (mm): 550

CTF 12/75/700
Max temp (°C): 1200
Number of heated zones: Single Zone
Dimensions: Fixed tube inner diameter (mm): 75
Dimensions: Heated length (mm): 700

CTF 12/100/900
Max temp (°C): 1200
Number of heated zones: Single Zone
Dimensions: Fixed tube inner diameter (mm): 100
Dimensions: Heated length (mm): 900

TZF 12/38/400
Max temp (°C): 1200
Number of heated zones: Three Zone
Dimensions: Fixed tube inner diameter (mm): 38
Dimensions: Heated length (mm): 400

TZF 12/38/850
Max temp (°C): 1200
Number of heated zones: Three Zone
Dimensions: Fixed tube inner diameter (mm): 38
Dimensions: Heated length (mm): 850

TZF 12/65/550
Max temp (°C): 1200
Number of heated zones: Three Zone
Dimensions: Fixed tube inner diameter (mm): 65
Dimensions: Heated length (mm): 550

TZF 12/75/700
Max temp (°C): 1200
Number of heated zones: Three Zone
Dimensions: Fixed tube inner diameter (mm): 75
Dimensions: Heated length (mm): 700

TZF 12/100/900
Max temp (°C): 1200
Number of heated zones: Three Zone
Dimensions: Fixed tube inner diameter (mm): 100
Dimensions: Heated length (mm): 900

  • Heat-up time (mins): 1100
  • Max continuous operating temp (°C): 1100
  • Dimensions:
  • External H x W x D (mm): 530 x 975 x 360
  • Dimensions: Furnace body length (mm): 950
  • Uniform length ±5°C (mm): 754
  • Max power (W): 4150
  • Holding power (W): 1000
  • Thermocouple type: N
  • Weight (kg): 54

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