Why metal surfaces become a nightmare for RFID?
When RFID tags are directly attached to metal surfaces, the electromagnetic wave reflection effect will cause the reading distance to be attenuated by up to 92% (Source: IEEE Transactions on Antennas and Propagation, 2024). In 2023, a factory suffered a major loss:
CNC machine tool tools worth 370,000 euros were lost
The reading success rate of traditional tags on metal surfaces is only 11%.
According to ISO 18186:2024 standard, five industrial tags were subjected to three purgatory-level tests:
Test basis:
Oil erosion: immersion in SAE 15W-40 engine oil for 72 hours
Mechanical vibration: simulate IEC 60068-2-6 10G random vibration
Temperature shock: -40℃↔85℃ rapid cycle 200 times
Comparison table of technology:
| Technology type | Representative model | Reading distance | Survival rate | after vibration Unit price | Best scenario | |
| Isolation gasket type | RFIDHY X | 6.2m | 98% | $2.1 | Heavy machinery | |
| Magnetic mounting type | RFIDHY ZT | 4.8m | 89% | $1.7 | Tool cart tracking | |
| Ceramic substrate type | RFIDHY PT | 3.5m | 95% | $3.8 | Medical equipment | |
| Omnidirectional antenna type | Impinj ST-800 | 7.1m | 76% | $4.2 | Tank management | |
| Flexible wave absorbing type | RFIDHY FL | 3400 | 5.6m | 100% | $2.9 | Automobile production line |
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