The Portable In-situ Micro-indentation Tester, jointly developed by Wuxi Zhanghua Pharm & Chem Equipment Co., Ltd. is a non-destructive online testing device based on the indentation method/indentation energy difference method. It focuses on mechanical properties and residual stress testing for energy equipment (e.g., pressure vessels, pipelines), serving third-party testing institutions and front line production units. It provides critical data support for finite element simulation, failure analysis, lifespan evaluation, and safety assessments.
The instrument is compact in structure (3-10 kg), providing great convenience for on-site online services.
Multi functionality: The device is versatile, capable of measuring tensile/compressive stress & welding residual stress, hardness, strain hardening exponent, and yield strength. It uses non-destructive testing to assess the "inherent safety" of service equipment.
Main Differences Between Indentation Tester and Traditional Testing Methods:
Non-destructive (Traditional methods are mostly destructive tests, such as impact tests, bending tests, and tensile tests).
Versatility (Traditional testing requires a variety of testing machines to obtain the aforementioned data).
Rapid response. The indentation tester can produce test data within approximately 10 minutes, whereas traditional testing methods can take several days.
Portability. The indentation tester completes measurements directly at the equipment site, whereas traditional methods generally require returning to the laboratory to conduct various tests.
| Micro-indentation Technology | Traditional Methods |
| ✅ Non-destructive | ❌ Requires sample cutting |
|
✅ Portable & efficient |
❌ Laboratory-dependent |
| ✅ Multi-parameter output | ❌ Single-parameter testing |
|
✅ Cost-effective |
❌ High preparation costs |
|
✅ Supports online testing |
❌ Offline operation |

Industry Standards & Certifications
- National Standards: GB/T 39535-2020, GB/T 21933-2019
- International Standards: ISO/TR 23381 (mechanical properties and residual stress testing)
- Korean Standards: KS 80550 (indentation tensile property testing)
- ASME Codes: Code Case 2703 (alternative hardness testing)
- Awards: Gold Medal at the Geneva International Exhibition of Inventions
CONTACT US
Contacts: Peggy Zhang
Tel: 0086-510-83551210
Wechat: 86 13961802200
WhatsApp: 86 13961802200
WhatsApp: 1(805)869-8509
Email: zqz008@126.com,zhangpeijie@zhanghuayaoji.com
vincent_zhang@zhanghuayaoji.com
Address: Shitangwan Industrial Park, Huishan District, Wuxi, PRC
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