In the realm of materials testing, hardness measurement stands as one of the most critical indicators of a material’s mechanical properties, heat treatment effectiveness, and overall quality. Among the various hardness testing methodologies, the Rockwell hardness test remains the industry gold standard due to its speed, reliability, and non-destructive nature. Mikrosize, a distinguished manufacturer of measuring and testing instruments, has developed a comprehensive lineup of Rockwell hardness testers that cater to diverse industrial applications.
This article explores three flagship models—the MRocky-150/45A Automatic Twin Rockwell Hardness Tester,
the iRocky-150/45CL Touch Screen Superficial Rockwell Hardness Tester,
and the uRocky-150/45A Digital Twin Rockwell Hardness Tester—each engineered to deliver exceptional accuracy, automation, and user-centric design.
Uncompromised Precision Across Multiple Scales
All three Mikrosize hardness testers support an extensive range of Rockwell and superficial Rockwell hardness scales, making them versatile solutions for testing ferrous and non-ferrous metals, hardened steels, aluminum alloys, copper alloys, bearing steels, thin sheets, and coated materials. The MRocky-150/45A, for instance, accommodates scales including HRA, HRB, HRC, HRD, HRFW, HRBW, HRGW, HRHW, HREW, HRKW, HRL, HRM, HRP, HRR, HRS, HRV, as well as superficial scales such as HR15N, HR30N, HR45N, and various HR15/30/45 T, W, X, Y scales. The iRocky-150/45CL offers similar comprehensive scale coverage, including HR15T, HR30T, HR45T, and other superficial scales, while the uRocky-150/45A combines both standard and superficial Rockwell scales in a single dual-purpose instrument.
Automation Redefines Testing Efficiency
What sets Mikrosize apart is the level of automation integrated into each model. The MRocky-150/45A features a high-speed head lifting mechanism with automatic descent speed adjustment upon sensing the specimen, ensuring smooth test force application. Its one-key operation handles the entire testing sequence—head descending, indenter loading, dwell, unloading, and hardness value display. The uRocky-150/45A takes automation a step further with an automatic anvil lifting system that eliminates manual hand-wheel rotation; pressing the start button triggers automatic specimen loading, testing, and hardness value display. This closed-loop control system employs a high-precision load cell instead of traditional dead weights, delivering exceptional force accuracy. Meanwhile, the iRocky-150/45CL utilizes an electronic weighted mainframe that requires no physical weights—simply power on and begin testing.
Intuitive Touchscreen Interfaces and Real-Time Monitoring
Modern manufacturing demands smart, user-friendly interfaces, and Mikrosize delivers. All three models feature large-format touchscreen displays that enable direct scale selection, test force configuration, and real-time monitoring. The MRocky-150/45A and uRocky-150/45A both incorporate dynamic curve graphs that visualize force sensor and displacement sensor status in real time. The iRocky-150/45CL boasts an 8-inch color touchscreen with fast, responsive operation. These intuitive interfaces significantly reduce operator training time and minimize the risk of human error.
Comprehensive Data Management and Connectivity
In today’s data-driven industrial environment, the ability to capture, store, and export test results is paramount. Mikrosize hardness testers are equipped with powerful data processing capabilities, automatically calculating maximum, minimum, average, standard deviation, and repeatability. Built-in thermal printers provide immediate hard-copy outputs, while USB and RS232 interfaces enable Excel data export for further analysis and documentation. The iRocky-150/45CL also supports printed test results, ensuring compliance with quality assurance protocols.
Robust Construction and Compliance with International Standards
Durability and precision go hand in hand. The MRocky-150/45A features a marble platform for superior flatness and stability, while all models comply with major international standards including GB/T 230, ISO 6508, ASTM E18, and JIS Z2245. With generous test heights (up to 240mm on the MRocky and 230mm on the iRocky) and ample throat depths, these instruments accommodate a wide variety of specimen geometries.
Application Versatility Across Industries
From aerospace and automotive to metallurgy and quality inspection laboratories, Mikrosize hardness testers prove indispensable. They are suitable for quenched, tempered, and annealed steels, hard castings, carbide materials, powder metallurgy components, thermal spray coatings, and even thin plated materials such as galvanized, chrome-plated, and tin-plated surfaces. Whether performing routine production quality control or advanced materials research, these instruments deliver consistent, repeatable, and reliable results.
