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This portable, nondestructive indentation tester is optimized for measuring welding residual stress in large storage tank bottom plates. It enables fast, efficient stress inspection at dozens of points during short turnaround outages, supporting integrity assessments of critical petrochemical infrastructure.
| Maximum Load | 1000 N (Max) |
| Actuation Range | 25 mm |
| Loading Speed | 0.01~30 mm/min |
| Data Acquisition Rate | 100 Hz |
| Rated Voltage of Motor | 2.1 V |
| Rated Current of Motor | 3 A |
| Wired/Wireless Power | 220 V / 24V |
| Testing Range | Macro-scale |
| Indentation Depth | 60~120 μm |
Model PMA-1010 is standard. Custom fixtures can be designed for various tank geometries.
Made with cemented carbide, stainless steel, and aluminum alloy to ensure longevity and reliability in harsh field conditions.
Ideal for petrochemical industry, especially for storage tanks, pressure vessels, and pipelines. Also applicable in energy, aerospace, and pharmaceutical sectors.
We offer customized fixtures and software adjustments for specific measurement needs.
A special inspection institute in China used this tester for 10 years to test special equipment, including storage tanks. It provided reliable data for safety assessments, ensuring stable operation.
Q1: How fast can I test multiple points?
Our tester completes stress inspection at dozens of points within a short turnaround outage, saving time during maintenance.
Q2: Can it be used on in-service pipelines?
Yes, it enables fixed-point re-testing on in-service pipelines to verify stress relaxation.
Q3: Is it safe for explosive areas?
Absolutely, it is intrinsically safe for use in explosive petrochemical plant environments.
Q4: What materials are tested?
It is primarily used on steel structures, including carbon steel and stainless steel.
Q5: What are the power options?
It supports both wired 220V and wireless 24V power sources.
Q6: How does it help with life extension?
It provides residual stress safety margin data essential for life-extension assessments.
Contact Vincent Zhang at +86 181-1890-2332 or email vincent_zhang@zhanghuayaoji.com for more details.
Image ID 414: Measuring welding residual stress in storage tank bottom plates. Image ID 416: Fast inspection during outage. Image ID 417: Fixed-point re-testing on pipelines.