Quality and surface testing

Delivering consistent performance, every time

Before every delivery, our steel wire undergoes rigorous final testing to secure quality and reliability. Each batch is carefully inspected through visual checks, dimensional measurements, and mechanical testing. Advanced non-destructive methods such as Eddy Current (EC) testing scan the wire continuously to detect even the smallest surface flaws, while conductivity measurements verify alloy integrity and heat-treatment accuracy. Together, these steps safe-guard that every coil leaving our plant meets demanding industry standards and customer requirements.

Advanced inspection methods

Our testing equipment combines automated inline systems with precise manual verification. Eddy Current systems provide 100% inspection at production speed, immediately flagging any irregularities. Conductivity testing confirms material consistency, while tensile and elongation testing ensure that the wire has the required strength and ductility.

Traceability and documentation

Every result is recorded and linked to batch data, ensuring full traceability from raw material to finished coil. This documentation provides transparency, reliability, and confidence for our customers across industries.

Our capabilities

Eddy Current (EC) testing

Continuous, non-destructive, scanning of the wire to identify surfaces defects such as scratches and cracks. This ensures reliable flaw detection at full production speed without interrupting the process.

Mechanical verification

Comprehensive tensile and elongation testing evaluates both strength and ductility. By simulating real-life stresses, we confirm that the wire meets demanding mechanical requirements for safety, durability, and long-term performance. 

Material integrity

Conductivity testing validates alloy composition and confirms the accuracy of heat treatment. These measurements secure material homogeneity, ensuring consistent electrical and structural properties across each batch. 

From challenge to success – real results

Behind every success is a story of collaboration, creativity, and results. See how we’ve helped our clients thrive.
Pioneering sustainable spring technology

Discover how Lesjöfors and Suzuki Garphyttan collaborate to develop innovative, high-quality springs with a focus on sustainability, lighter materials, and reduced environmental impact.

Innovation shaping the future of wire

Discover how we drive innovation in wire production through in-house machine development, R&D collaboration, and sustainable solutions, delivering high-quality, customized wire for global customers.

DUX Beds – Premium Comfort with Suzuki Garphyttan Springs

Discover how DUX has crafted world-class beds using unique springs made from Suzuki Garphyttan wire. Experience unmatched comfort, durability, and quality in every bed.

Assuring consistent quality for all our sites

Our headquarters in Garphyttan Sweden hosts many global functions working to align all our sites over the world.

Do you know your CBAM, CSRD and ESPR?

EU sustainability regulations can feel like a jungle of abbreviations, many of them sounding almost the same.

All stories

Discover how the meeting of technology, ideas, and people drives a brighter future.