SGL Carbon offers Volvo’s first million composite leaf springs

The company’s composite leaf springs are tailored to different models to provide manufacturers with a high degree of flexibility.

Source | SGL Carbon

SGL Carbon (Wiesbaden, Germany) has reached a milestone in the mass production history of fiber composite parts by supplying Volvo Cars (Göteborg, Sweden) with the millionth composite leaf spring. Leaf springs are produced at the Innkreis plant in Austria.

With its fully automated, expandable leaf spring series based on Glass Fiber Reinforced Plastics (GFRP), SGL Carbon offers one of the largest composite parts in the automotive industry. Compared with the standard leaf spring, the weight can reach 15 kg, and the similar GFRP spring piece weighs only 6 kg and the weight is reduced by about 65%. The composite design also means that the leaf springs can be customized to different models, giving manufacturers a high degree of flexibility.

Leaf springs are part of Volvo’s global SPA vehicle platform for a variety of Volvo models. SGL Carbon said it is working with other automakers in Europe and North America to implement similar concepts.

Eric Johnson, senior design engineer at Volvo Cars, said: “The new leaf springs can significantly reduce the weight of our models compared to traditional steel springs.” “This helps reduce fuel consumption and CO 2 emissions.” In addition, we can use a small number of leaf spring models in many different models to increase efficiency and achieve high flexibility.”

SGL Carbon CEO Dr. Jürgen Köhler (left) and SGL Carbon Managing Director Herwig Fischer (right) celebrate the delivery of the millionth spring at SGL Carbons’ Innkreis production site.

“We are proud that we are driving our innovative solutions with targeted and demanding customers in a targeted manner and are increasingly investing them in high volume production. The composite leaf spring is a very A good example,” added Dr. Jürgen Köhler, CEO of SGL Carbon. “In addition, the project also emphasizes a long-term good relationship between the two companies.”