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Coils and plastic bobins for transformers

Coils / transformer bobbins (core bobbins)

Plastic bobbins for transformersBrochure: transfrormer bobbins, 345 KB (PDF / Spanish version only)

We manufacture transformer bobbins from 3/4" x 3/4" through 1 1/2" x 1 5/8". All of our products are manufactured with raw materials of high quality, antiflame and fiber glass. Having specific engineering and design characteristics could guarantee security, reliability and quality of our products in your applications.

High resistance

During design process, specialy of our bobbins, several finite element analysis are performed, all of them could let us provide the maximum resistance to deformation due external forces and pressures, high temperatures, etc. Below image shows a deformation scale of 34823.7 (transformer bobbin size 3/4" x 3/4"), due forces and pressure applied on walls.

CAE analysis of kleinstad bobbins


Main features of our transformer bobbins / coils:
  • High quality raw materials, FR & V0 available.
  • Thicker walls for maximum resistance.
  • Increased mechanical resistance, better electrical isolation and higher resistance for high temperatures.
  • Competitive prices.

If are interested on distribute and resell our bobbins, laminations and other transformer/ballasts components contact us to be part of our qualified distributors.


Kleinstad bobbins
Prime quality raw materials


Core bobbins
Competitive prices


Plastic bobbins
Plastic bobbins

Our Products: Silicon steel, LTL & EI lamination, Ballasts,
  Voltage Liners, Plastic bobbins, more...
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