Plastics for generators and motors

Motors and generators must have a high efficiency and be operationally safe. For development, constructors need materials that meet high electrical, mechanical and thermal requirements at the same time. With Durostone® (GFRP), we offer a glass fibre-reinforced plastic that is particularly suitable for these requirements. It has outstanding electrical and mechanical strengths and helps you construct high-performance generators and motors.

Your advantages

  • High efficiency
  • Long-lived
  • Low-maintenance
  • High mechanical resilience
  • High thermal resilience
  • Electrically isolating

Typical areas of application

  • Salient pole generators
  • Turbo generators
  • Wind power generators
  • Hydro generators
  • High-performance induction motors
  • Synchronous motors
  • Direct current motors

Product examples

Winding head support rings

Winding head support rings of Durostone® are anti-magnetic, electrically insulating and at the sometime offer high mechanical resilience. Depending on customer requirements, we produce winding head support rings with different fibre directions and fibre contents for individual determination of the E-modulus and thermal expansion. More about our wound cones

Slot wedges made of Durostone® (GFRP)

Machined in narrow tolerances according to customer drawings, slot wedges of our glass fibre-reinforced plastic Durostone® offer very high mechanical resilience and thus resist permanently high mechanical stresses. More about Durostone®

Slotliner made of Durostone® (GFRP)

We offer slotliner and peelable slotliner made of Durostone® with a length of up to 12 metres. With their high thermal resilience (heat categories F or H) and mechanical strength, they are very resilient and offer a long service life. If required, they are available with a very low friction coefficient with Aramid coating or PTFE coating. More about Durostone®

Arrange technical advice

The performance and reliability of materials for generators and motors are influenced by a variety of factors. These criteria need to be considered in order to make the right choice. Examples:

  • Mechanical stress
  • Electrical stress
  • Meeting heat categories such as F or H
  • Constructional requirements
  • Dimensions and tolerances

We are happy to advise you on the selection of suitable materials for your particular application. Just use our contact form at the bottom of the page and write to us.


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Electrical Industry
Röchling Industrial

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