Hairspring Fabrication

At IFG Instruments, we use our precision rolling and spring coiling capacities for hair spring fabrication services. Hair springs, flat, coiled wire springs, are used for every analog application: automotive speedometers and tachometers, aircraft speed and altitude indicators, and pressure and temperature gauges. We are able to work with several different metals to suit the electrically-conductive requirement of hair springs: phosphor bronze, beryllium copper, stainless steel, and NiSpan C. We can also produce bimetal coils, made of two different materials welded together, with different expansion rates to indicate temperature or humidity.

Hair springs from IFG Instruments are available in various sizes, wire diameters and coil diameters, with end extensions in configurations including straight, hooked, right angle, or curved. These are delicate parts that make extensive use of our specialty in small-scale, precision manufacturing.

  • Automotive speedometers and tachometers
  • Aircraft speed and altitude
  • Pressure and temperature gauges
  • Variety of electrical indication
  • Materials: Phosphur Bronze, Beryllium Copper, Stainless Steel, and NiSpan C
  • Bimetal coils are also possible to indicate temperature or humidity

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High Spring Fabrication Highlights

  • Phosphur Bronze
  • Beryllium Copper
  • Stainless Steel
  • NiSpan C
  • Automotive Speedometers & Tachometers
  • Aircraft Speed & Altitude
  • Pressure & Temperature Gauges
  • Electrical Indication
Industries Served
  • Automotive
  • Aircraft
  • Temperature Gages
Quality Certifications
  • DIN EN ISO 9001:2008
  • ISO IS 16949:2009
  • EN ISO 13485:2003 – AC:2009
  • DIN EN ISO 14001:2004


Strip Width
Strip Thickness
Wire Processing
up to 4mm
from 0.01mm
Copper Alloys, Stainless Steel
Drawing and Rolling
Automotive Industry, Measurement and Control Technology

BiMetal Springs

Strip Width
Strip Thickness
Wire Processing
Manufacturing Processes
up to 1mm
from 0.005mm
Drawing and Rolling
Widning and Coiling
Temperature range from -40ºC to 500ºC