The FOERSTER SONODUR Product Family offers high-quality mobile hardness testing solutions based on UCI — Ultrasonic Contact Impedance — and Leeb measuring technologies for fast, reliable, and largely non-destructive hardness testing on metallic components and materials. The product range is designed as a practical supplement to conventional hardness testing methods, especially for applications where mobility, accessibility, and fast measurement results are essential. Thanks to compact SONO probes and sensors, SONODUR systems can be used effectively on complex component geometries, difficult test positions, installed parts, weld seams, cut edges, thin-walled components, and production-related quality control tasks.

The SONODUR portfolio includes SONODUR 3 for mobile on-site hardness testing, SONODUR R for automated mass production and 100% process monitoring, and SONODUR 3 LITE LEEB for essential mobile Leeb hardness testing applications. With a flexible range of hand and motor probes offering different test forces from 1 N to 98 N, the system can be adapted to various materials, geometries, and inspection requirements. Standardized according to DIN 50159 and ASTM A1038 for UCI testing, SONODUR provides high measurement accuracy, repeatability, small indentation size, and robust usability for industrial applications such as incoming goods inspection, mix-up testing, production control, quality assurance, maintenance, and automated hardness testing.