Customized Compact Residual Stress Analyzer Using Micro-Indentation Technology manufacturers From China | Zhanghua Dryer

The Portable In-situ Micro-Indentation Tester, developed by Wuxi Zhanghua Pharm & Chem Equipment Co., Ltd., is an advanced non-destructive testing system based on the indentation method and indentation energy difference principle. Designed for pressure vessels, pipelines, and other energy equipment, it enables precise evaluation of mechanical properties and residual stress directly on-site.

Compact and lightweight (3–10 kg), this portable system provides rapid, reliable test data within minutes. Its multifunctional capabilities include measuring tensile and compressive stress, welding residual stress, hardness, yield strength, and strain hardening exponent, all without damaging the tested surface.

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