The Leeb hardness tester is an essential portable instrument widely used for testing the hardness of various materials, including metals, plastics, and rubber. Its operational principle is based on the dynamic rebound method, in which a standardized impactor strikes the surface of the specimen. The hardness value is then accurately calculated by measuring the rebound velocity of this impactor from the surface. This practical design enables the leeb hardness tester to combine simple operation, fast measurement, and outstanding portability, making it an indispensable tool for both on-site inspections and laboratory testing environments. As a specialized measuring and testing instrument, its reliability and efficiency are critical for professionals across various sectors.
Mikrosize is a leading supplier of such precision instruments, renowned for delivering high-quality measurement solutions. The main characteristics of the leeb hardness tester highlight its versatility and user-friendly design. It provides a wide measurement range from 170 to 960 HLD, fully covering hardness testing demands for materials ranging from soft polymers to hardened metals. Rapid testing is one of its core advantages: each measurement takes only 3 seconds, supporting high-throughput quality control workflows. In addition, it delivers excellent portability; certain models feature an ultra-compact body of just 4.3 cm, easy to transport for instant on-site testing — a much-appreciated advantage for field applications.
This measuring and testing instrument is widely applied across multiple fields, including metal processing, manufacturing quality control, and scientific research. To maintain stable performance and precise test results, users shall follow standard operating procedures. Start with proper sample preparation: ensure the specimen’s testing surface is clean, smooth, and free of contaminants such as oil, grease, as well as surface oxide films. Next, calibrate the instrument per the manufacturer’s guidelines to sustain long-term measuring accuracy. During formal testing, hold the hardness tester perpendicular to the specimen surface, apply the standard test force of 960 N, and trigger the measurement. The test reading will display instantly and can be recorded directly in HLD units.
When operating this precision tester, users need to follow key precautions to maintain its stable measuring performance as a reliable measuring and testing instrument. Do not operate the tester in highly humid or high-temperature environments, as such conditions will damage its electronic components and compromise measurement accuracy. Routine calibration is mandatory to guarantee long-term reliability and keep the device operating within its specified tolerance range. For ultra-hard materials, take multiple readings at the same test position and adopt the average value to enhance the reliability and repeatability of test results.
We are proud to be a trusted supplier of these advanced testing devices. Our Mikrosize portable leeb hardness tester integrates all the above superior performance features. It delivers 3-second rapid testing, a broad measuring range of 170–960 HLD, and exceptional portability with a compact 4.3 cm body. Feel free to contact us to discuss your unique testing requirements; we are dedicated to offering you the optimal hardness testing solution tailored to your working scenarios. As a professional supplier of precision measuring and testing instruments, we provide reliable equipment and professional technical guidance to support your quality assurance and research projects.
