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Bimetal-Snap-Action-Discs

Item 39099

• Standard model range from 6,2mm to 30mm
• Customised models
• Temperature range -60°C to +320°C
• Sample delivery to large-scale series production
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Specifications

Production rangeSnap-on temperature range: -60°C to +320°C

Accuracy of the snap-on temperatures: standard tolerance +/-2.0°C depending on temperature range, delta T and Material
Possible
Material thickness: 0.1mm to 0.4mm
Standard typesThe following standard models are available at short term** and without tool costs::
Disc Diameter [mm]Center Hole Diameter [mm]
Ø 6,2Ø 1,25
Ø 7,8Ø 2,0
Ø 12,7-
Ø 14,0Ø 1,8
Ø 17,0Ø 2,2
Ø 19,0Ø 2,0 / Ø 2,2
Ø 19,5-
Ø 25,0-
Ø 25,4-
Ø 30,0Ø 2,0 / Ø 3,2 / Ø 4,2 / Notch*

 

**short term: as long as raw material is available (in stock)

Customized sizes and shapes:Customized sizes and shapes:
Round shape: 7 to 30mm in diameter
Other forms: up to a maximum of 33mm perimeter diameter

Switch elements
On request, elctrical contacts or mechanical elements can also be welded onto the bimetallic discs on request. This would require the planning of a corresponding automatic welding machine.
Anwendungsbereiche für Bimetall-Schnappscheiben[Classic application of bimetall-snap-discs:]
  • Temperature controller
  • Temperature limiter
  • Over temperature protection
  • Current sensitive circuit breaker

[In addition to the classic applications, bimetal snap disks are increasingly being used in mechanical and electrical applications:]
  • Heating technology: automated air bleed valves
  • Water supply in developing countries: optical display of water disinfection
  • Pharmaceutical industry: optical display for checking the cold chain
  • Automotive industry: temperature-dependent bypass valve in diesel filters
  • Automotive industry: resettable electric fuses
  • Automotive industry: overtemperature protection in the cooling circuit
  • Filter coffee machines: inlet valve for the preparation of boiling water
  • Gastronomy: safety drain valve for deep fat fryers
  • Steam iron: anti-drip valve
  • Hot water kettle: mechanical-electrical switch-off device
  • Washing machine: door lock with time delay
  • Cable drum: overheating protection while cable is on the spool
  • Refrigeration compressor: motor protection switch, current & temperature-sensitive
  • Miniature circuit breaker: trip device for overcurrent shutdown

[Typical users of bimetal snap discs are:]
  • Thermostat manufacturer
  • Household appliances and white goods industry
  • Motor and lighting manufacturers
  • Manufacturer of circuit breakers and motor protection switches (circuit breakers)
  • Automotive industry
  • Manufacturer of battery chargers
  • etc.

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