Mahr Inc. Introduces MarSurf3D Comprehensive Scattered Light Portfolio

PROVIDENCE, RI – December 10, 2025 –Mahr Inc., a leading provider of dimensional metrology solutions, today announced the launch of its MarSurf3D comprehensive scattered light portfolio, following the company’s 2024 acquisition of OptoSurf GmbH. This strategic expansion adds cutting-edge scattered light technology to Mahr’s offerings, opening new possibilities in tribology and delivering even greater precision and efficiency for its customers.

With the integration of OptoSurf's robust, high-accuracy technology, Mahr now provides an ideal complement to its existing measurement systems, enabling surface parameter evaluation with exceptional speed and reliability, even in demanding production environments.

Expanded Scattered Light Product Portfolio: The MarSurf3D Family

MarSurf3D Sensor OS 500: Designed for grinding or finishing machines, rollers, steel sheets, and roller bearings, the OS 500 scattered light sensor can be fully integrated into machine control systems for direct, inline measurement. The sensor delivers extremely fast, precise, low-maintenance operation and supports remote control. Included software enables evaluation of roughness and waviness, with the 8 kHz version ideal for large surface measurements such as rollers.

MarSurf3D OptoRack: Specially developed for monitoring grinding and finishing processes in racks and ball screw drives used to convert rotary motion into longitudinal motion—critical for applications such as machine tools and steering systems where efficiency, wear, and possible noise development depend heavily on the surface quality of the ball tracks. The OptoRack measuring machine features a swivel axis that allows the sensor to measure roughness and waviness separately on paths to the right and left of the pressure point of the raceways at any point on the spindle.

MarSurf3D OptoWorm: Engineered for precision monitoring of worm gear machining, particularly in electric power steering systems, the OptoWorm enables measurement of the complete functional surface of both the left and right worm flanks, meeting the extremely high surface quality demands required for optimal performance.

MarSurf3D OptoShaft: Developed for real-time monitoring of bearing seat grinding and finishing, the OptoShaft detects waviness with amplitudes below 0.05 μm, preventing noise caused by chatter marks. Its robust scattered light sensor allows use directly adjacent to production machinery.

“The addition of OptoSurf’s scattered light metrology to our MarSurf3D scattered light portfolio marks a major step toward the future of high-precision manufacturing,” said John Roberts, Vice President Sales Americas/Executive Director at Mahr Inc. “Our customers now have access to a broader range of industry-leading solutions, capable of delivering unmatched surface measurement accuracy, efficiency, and reliability in the harshest production environments.”

With the new MarSurf3D scattered light portfolio, Mahr reinforces its commitment to innovation, precision, and customer success, providing manufacturers with the tools they need to optimize quality, reduce defects, and increase productivity.

About Mahr Inc.

When customers are faced with a metrology need, they turn to Mahr Inc., for unmatched industry expertise. Mahr Inc.’s knowledgeable, experienced team has made the company a leader in precision measurement for more than a century.

Mahr Inc., a member of the Mahr Group, has been providing dimensional measurement solutions to fit customer application needs for more than 160 years. The company manufactures and markets a wide variety of dimensional metrology equipment, from simple and easy-to-use handheld gages to technically advanced measurement systems for form, contour, surface finish and length. Mahr Inc. is also well known as a producer of custom-designed gages and a provider of calibration and contract measurement services. Mahr Inc.’s calibration laboratories are accredited to ISO/IEC 17025:2005 NVLAP Lab Code 200605-0 (see our Scope of Accreditation for accredited calibration processes). For more information, visit  www.mahr.com