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Learn more about the Composite Spring
June 24, 2026
Composite
The automotive market is constantly evolving, and the search for more efficient and durable solutions has driven the development of new technologies.
Keeping pace with this transformation, Marchetti presents the Front Composite Spring for Sprinter, a solution that combines innovation and high performance to meet the demands of current and future mobility.
Developed with composite material using fibers and resin, the Composite Spring represents an important advancement for suspension systems, offering benefits that go beyond weight reduction and delivering greater comfort, safety, and durability.
Technology
Technology that enables efficient load distribution, making fiberglass a technical alternative to metal in applications where weight reduction and durability are strategic factors.
Up to 60% lighter than steel springs
One of the main highlights of the Composite Spring is its weight reduction. Manufactured with composite material, it can be up to 60% lighter than a metal spring, contributing to suspension system efficiency and improved vehicle performance.
This weight reduction directly contributes to:
- Greater vehicle efficiency;
- Reduced fuel consumption;
- Lower CO₂ emissions;
- Improved suspension system performance;
- Longer component lifespan.
Durability
Composite materials offer high specific strength, meaning they provide an excellent strength-to-weight ratio.
In addition, their natural flexibility provides greater fatigue resistance — an essential characteristic for components subjected to constant stress. As a result, the Composite Spring delivers greater durability and maintains its efficiency even in demanding applications.
More comfort and lower noise levels
In addition to strength and lightness, the technology used in the composite material contributes to a more comfortable driving experience. Its vibration absorption capability reduces noise transmission and improves comfort for both drivers and passengers.
Safety and stability
Safety is one of the pillars behind the development of the Composite Spring. In the event of failure, the material behaves differently from steel. The component breaks into parts and gradually loses its load-bearing capacity, providing an important characteristic for the system and contributing to operational safety.
In addition, suspension stability and efficiency are maintained throughout the component’s service life, delivering greater reliability to the vehicle.
Composite Spring X Metal Spring
Composite Spring (Fibers and Resin):
- Up to 60% lighter than steel springs;
- High specific strength;
- High fatigue resistance;
- Greater comfort and lower noise levels;
- Ideal for applications that require weight reduction and greater efficiency.
Metal Spring (Steel):
- Excellent performance in applications involving large and heavy loads;
- A well-established solution in the market;
- Strong presence in traditional and more cost-sensitive applications.
The Composite Spring emerges as a strategic solution for applications where weight reduction, durability, and efficiency provide real long-term benefits.
Trend
The evolution of mobility points toward increasingly efficient vehicles. Modern models and special applications already show a strong trend toward the use of composite materials in their components.
While metal springs continue to dominate traditional and heavy-load applications, composite material springs represent an important path for the next generation of suspension systems.
Innovation that keeps pace with market evolution
The market evolves. And Marchetti evolves with it. With more than eight decades of tradition and continuous investment in technology, the company presents a solution that reinforces its commitment to innovation and to the development of products aligned with the new demands of the automotive sector.