Spiral Shaped Microheaters

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The objective of the use for free radiating devices is to maximize the radiative POWER transfer from the heating elements it is important to control for the power within the limitations imposed by the material. If the heating element is enclosed with insulation, the objective of the user changes to obtain a certain temperature inside the insulated region, thus the power requirement may be lower and control has to be exercised in a different way. The control for the temperature inside a chamber or the power-maximization in a free radiating mode can be made with MHI temperature and power controllers like the BPAN-O-PLUS.  For either objective, one cannot exceed the rated temperature of the heating element or the rated amps or volts of the device.



1400°C Models (GAXP® Material)

MC-GAXP®-30 (Orthogonal terminals)

GAXP microheater 1400C


GAXP microheater 1400C

  • 1" base (spiral diameter slightly smaller than base)
  • 300 Watts free radiation mode
  • Continuous use approximately 1400°C
  • Ceramic base included

MC-GAXP®-130  (Orthogonal terminals)
GAXP microheater 1400C
GAXP microheater 1400C

  • 2" base (spiral diameter slightly smaller than base)
  • 700 Watts free radiation mode
  • Continuous use approximately 1400°C
  • Ceramic base included

MC-GAXP®-375 (Orthogonal terminals)


GAXP microheater

  • Heater OD = 3"
  • Maximum power ~ 1800 Watts in free radiation mode
  • Continuous use approximately 1385°C
  • Ceramic base included

MC-GAXP®-485 (Orthogonal terminals)


GAXP microheater

  • Heater OD = 3.5"
  • Maximum power ~ 2300 Watts in free radiation mode.
  • Continuous use approximately 1385°C
  • Ceramic base included
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Description: MC-GAXP-485 (3)(Ceramic base provided with microheater does not have a lip. Picture only for illustrative purposes only.)

Note that the maximum temperature is at the center of the spiral region unless asymmetric power delivery is required

In the diagram above D1 and D2 are separated by 0.1" T is 0.25" and H is 2.5"

For obtaining maximum temperature MHI controls are highly recommended. Large diameter GAXP® microheaters could develop some springiness from induced magnetic forces. Potting in ceramic paste is allowed as long as care is taken to factor-in the loss of any thermocouple response in the measured temperature. Note element temperature will be higher and maximum element temperature should not be exceeded. In the free radiation mode the power can be maximized.

The objective of the use for free radiating devices is to maximize the radiative POWER transfer from the heating elements. If the heating element is covered with insulation, the objective of the user changes to obtain a certain temperature inside the insulated region. The control of temperature inside a chamber, or power maximization in a free radiating mode can be made with MHI temperature and/or power controllers.  When covered the power and current will be lower and the element temperature can be exceeded quickly if not monitored and controlled.  For either objective, one cannot exceed the rated temperature or maximum current of the heating element. Power output will be lower in enclosed radiation mode with a temperature control feature as opposed to or in addition to the power control.

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1900°C MC Models Shown Below

( Click to 1400C GAXP Models)

MC170

(Orthogonal terminals)

Orthogonal Microheater

  • 1" spiral Microheater
  • ~500 Watts Power
  • Unique high watt density
  • Design with right-angle terminals on circumference
  • Ceramic base included (NanoFractalAlumina™ or RR Alumina)
  • Max. dimension between terminals is 1.25"

MC170-IPL

(In-plane terminals)

Spiral Microheater

  • 1" spiral Microheater
  • ~500 Watts Power
  • Unique high watt density
  • Design with in-plane terminals on circumference
  • Ceramic Base Included (NanoFractalAlumina™ or RR Alumina)
  • Max. dimension end to end of terminal is 6"

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