Hangzhou Jingjing Testing Instrument Co., Ltd.

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CHRS-150M Touchscreen Rockwell Hardness Tester

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The CHRS-150M fully automatic touchscreen Rockwell hardness tester is a high-precision instrument featuring a large digital display and a new, large-format LCD touchscreen with a menu-driven interface. It supports hardness testing across the full range of Rockwell scales, including standard Rockwell, Superficial Rockwell, and Plastic Rockwell.
The device utilizes sensor-based closed-loop control technology and automatic indenter descent, eliminating the need for manual preliminary test force application. A single-button operation automatically handles the application of preliminary and main test forces, as well as measurement and digital output of hardness results. It features automatic measurement error correction and hardness unit conversion. A built-in printer allows for direct test report printing, and a USB interface supports data transfer to a computer (USB is optional).
The main body is manufactured using an integrated sand-casting process; precision machining of critical bores ensures strict concentricity, while single-pass milling guarantees surface flatness. The drive lead screw is precision-ground to ensure smooth, drift-free vertical movement. Specialized processing throughout the machine ensures superior testing accuracy and operational stability.

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Reading resolution is 0.1 Rockwell units, with a repeatability of ±0.5 units. The preliminary test force is 10 kgf (98.07 N), with three selectable main test force levels: 60 kgf (588 N), 100 kgf (980 N), and 150 kgf (1471 N). It covers a comprehensive range of Rockwell scales—including HRA, HRB, HRC, HRD, HRE, HRF, HRG, HRH, and HRK—offering broad testing versatility. Dwell time is adjustable from 0 to 60 seconds, and the system supports automatic conversion to Superficial Rockwell, Brinell, and Vickers hardness scales. The maximum allowable specimen height is 225 mm. The device complies with national standards GB/T 230.1, GB/T 230.2, and JJG 112. Verification regulation.
Suitable for Rockwell hardness testing of ferrous metals, non-ferrous metals, and non-metallic materials, this instrument is widely used for testing samples such as quenched, tempered, and annealed steels, chilled castings, malleable castings, cemented carbides, aluminum alloys, copper, bearing steel, hard plastics, hard rubber, aluminum, tin, low-carbon steel, synthetic resins, and friction materials. It is a high-performance hardness testing instrument designed for factory quality control and laboratories in research institutions and universities.

Product Model CHRS-150M
Reading Accuracy 0.1 Degrees
Repeatability ±0.5 Degrees
Initial Test Force 10KGF (98.07N)
Test Force 60KGF (588N), 100KGF (980N), 150KGF (1471N)
Rockwell Scale HRA, HRB, HRC, HRD, HRE, HRF, HRG, HRH, HRK
Test Range HRA:20-88, HRB:20-100, HRC:20-70, HRD:40-77, HRE:70-100, HRF:60-100, HRG:30-94, HRH:80-100, HRK:40-100, HRL:50-115, HRM:50-115, HRR:50-115
Hold-Load Time 0-60S
Implementation Standards GB/T230.1 GB/T230.2 National Standard
JJG112 Verification Procedure
Convert Scale Surface Rockwell, Brinell, Vickers
Hardness Reading Large Screen Digital Display
Data Output Built-In Printer USB Interface (Optional)
Maximum Height Of Specimen 225MM

About Us
Hangzhou Jingjing Testing Instrument Co., Ltd.
Hangzhou Jingjing Testing Instrument Co., Ltd.
Hangzhou Jingjing Testing Instrument Co., Ltd. is China CHRS-150M Touchscreen Rockwell Hardness Tester Suppliers and Wholesale CHRS-150M Touchscreen Rockwell Hardness Tester Factory. It is a comprehensive enterprise specializing in the production, R&D, sales, maintenance, and metrological management of hardness testers, tensile testing machines, metallographic microscopes, and metallographic sample preparation equipment. The company employs a team of highly regarded engineers and service professionals within the domestic industry, many of whom have contributed to technical development projects and collaborations with well-known instrument manufacturers across China. Thanks to our consistent product quality and high cost-effectiveness, we have established a distributor network covering the Pearl River Delta, Yangtze River Delta, Central China, East China, and North China regions. This extensive network enables us to provide comprehensive after-sales support to our customers. Furthermore, we serve as an authorized agent and distributor for numerous internationally and domestically renowned testing equipment brands. With a product range of over a thousand items, we play a key role in supporting quality management systems and delivering integrated hardware solutions for enterprise certification needs. Our product portfolio includes dimensional metrology, mechanical testing, electrical testing, optical instruments, non-destructive testing, educational instruments, precision instruments, specialized measurement tools, and environmental testing equipment. Guided by our corporate philosophy of "Sustainable Development," we consistently uphold the business principle of:"Better price for equal quality; better service for equal price." This commitment has garnered widespread recognition and strong support from our customers. Our team is dedicated to serving each client with sincerity, enthusiasm, attention and professionalism, delivering end-to-end support through pre-sales technical consulting, in-sales technical training, and after-sales technical support. Integrity fuels our development and strength builds our brand. We are continuously striving to enhance our product offerings and deliver professional service, partnering with our customers to build a bright future together. We sincerely look forward to establishing long-term collaborations with both new and existing clients. We welcome your inquiries and are eager to explore opportunities for cooperation!
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