Mahr
What is Mahr?
Mahr is a German metrology company specializing in industrial measuring instruments and measurement systems. The company is particularly known for its hand measuring tools, dial indicators, micrometers, height measuring devices, and instruments designed for measuring surface roughness. Mahr's products are widely used in machine shops and manufacturing facilities, where measurement accuracy, repeatability, and reliability are essential requirements.
The company's roots trace back to the 19th century, and its operations are based on a long-standing German tradition of precision mechanics and metrology. Mahr is still a family-owned company with its headquarters located in Göttingen, Germany.
Mahr’s History as a Developer of Metrology
Mahr’s history began in 1861 when Carl Mahr founded the company to manufacture precision mechanical products for industrial needs. In its early decades, the focus was on mechanical components and measuring tools, but as industrialization progressed, the role of metrology in the machining industry grew significantly.
Over the decades, Mahr has participated in developing many fundamental measurement solutions that remain central in machining today. The company’s R&D has evolved in step with advances in machining technology, where tolerances have tightened and the need for reliable measurements has increased.
Mahr Measuring Tools in Machining
Mahr’s product range includes a wide array of hand measuring instruments and measurement systems used daily in machine shops. Typical applications include measuring parts after turning, milling, and drilling, as well as quality assurance in mass production.
The company’s calipers and micrometers are suitable for checking nominal sizes, tolerances, and deviations. Dial indicators and other comparator instruments play a key role in setups, alignments, and runout measurements. These tools are often used together with, for example, surface plates, gauge blocks, and fixtures.
Surface Roughness and Mahr’s Measurement Solutions
One of Mahr’s best-known specialties is surface roughness measurement. Surface roughness is a critical factor in many machined parts, where functionality, wear resistance, or sealing capability depend on surface quality. Mahr’s surface roughness measurement devices are suitable for both in-process and inspection room use.
These devices measure commonly used parameters such as Ra and Rz, which are important in applications like bearing surfaces, sealing surfaces, and precision mechanics. Measurements can be performed directly on the machined surface without separate samples.
Digital Measurement Systems and Data Management
In addition to traditional mechanical measuring devices, Mahr offers digital measurement solutions that support modern production environments. Digital measuring devices allow measurement results to be transferred directly into systems, reducing errors and enhancing traceability.
In machine shops, this translates into more efficient quality control, easier documentation, and better process management. Digital solutions also support measurement repeatability, which is particularly important in mass production and demanding tolerance classes.
Mahr as a Global Player in the Machining Industry
Mahr operates internationally and has production, sales, and service units in several countries. This ensures the availability of measuring instruments and technical support for machine shops around the world. The company's products are established in use across many sectors of the machining industry, such as automotive manufacturing, machine building, and precision engineering.
Despite its global presence, Mahr’s core development continues to be based on German measurement expertise and extensive experience.
Summary
Mahr is a measurement technology manufacturer with a long history, and its products are an essential part of the everyday measurement work in machine shops and manufacturing facilities. The company’s range includes hand measuring tools, surface roughness measurement devices, and digital measurement systems used in precision machining applications. Mahr’s solutions support high-quality machining, reliable measurement, and efficient quality assurance in the machining industry.
