Railcars at steel mills perform core functions including raw material delivery, finished product transportation, and internal transfers. Traditional manual recording of car numbers is inefficient, error-prone, and involves high operational risks in harsh environments. It also frequently leads to settlement discrepancies and storage issues.
Using the best RFID tags for steel industry can transform this process. RFID technology offers resistance to metal interference, high-temperature tolerance, and an identification rate of ≥99%. It enables automatic identification and tracking of car numbers, establishes seamless data links, and integrates with rail scales for precise settlement. By adopting the best RFID tags for steel industry, steel mills can significantly reduce costs, improve operational efficiency, and advance the intelligent transformation of rail transportation.

1. RFID Tagging of Transport Containers
Establish Unique Electronic Identity Records
Install Wanquan Smart industrial-grade anti-metal RFID tags (temperature resistance: -40°C to 200°C, IP67+ rating, vibration-resistant and oil-proof) on all steel mill transport containers. These tags store core information such as container ID and serial number, with records synchronized to dispatch and MES systems. Passive-design tags are permanently bonded to each car body, ensuring unique and traceable identity.

RFID Transponder Auslesen
2. Automatic Car Number Recognition at Entrances/Exits
Precision Control of Transport Chains
Deploy Wanquan Intelligent RFID readers and wheel sensors at steel mill rail entrances/exits and raw material/finished product ports to form automatic recognition channels. Upon train entry, sensors trigger readers to capture tag data, automatically uploading records while triggering photo capture for traceability. This reduces dwell time per car by 3–5 hours, lowering rail/vehicle delay fees.





RFID Read Write Device
3. Precise Identification for In-Plant Transportation
Ensuring Continuous and Efficient Production
Long-range readers deployed at key rail junctions enable real-time identification of car numbers. Molten iron tank cars are linked to precise iron data for accurate dispensing, while scrap steel hopper cars are monitored for type and weight during furnace loading. Finished product cars are matched to specifications and batches to prevent misdelivery, ensuring seamless production flow and reducing scheduling costs.
4. Dispatch Coordination and Data Integration
Elevating Management Precision
RFID car number data interfaces with dispatch, rail scales, MES, and other systems. Dispatch centers monitor car statuses in real time via dashboards, automating train formation. Precise “car number + weight” data is automatically collected for settlement, generating reports that support decision-making and accounting.


5. Equipment Maintenance and Anomaly Alerts
Reducing Operational Risks
RFID tags record car maintenance information, with the system pre-setting maintenance alerts to ensure safety. Real-time monitoring of tag status provides timely reminders for inspection and replacement. Alerts are triggered for anomalies such as misaligned cars, enabling rapid location to prevent disruption to transportation operations.


6.System Architecture and Core Components
6.1 System Architecture
Adopting a “terminal collection-edge transmission-cloud management” architecture, the system integrates Wanquan intelligent industrial gateways to interface with various management systems within steel mills. Sensor-triggered recognition and data collection via readers are transmitted through gateways to the platform. Visual dashboards display core metrics, establishing an intelligent management ecosystem.
6.2 Core Components
| Component Type | Core Specifications / Features |
|---|---|
| RFID Tag | Industrial-grade anti-metal tag, temperature resistant -40~200°C, IP67+, anti-interference and oil-proof, passive design, stores full lifecycle information, complies with Ministry of Railways coding standards. |
| Read/Write Device | Read/Write Device (Fixed/Long-Range/Handheld), IP64+, anti-interference, recognition rate ≥99%, integrates with sensors, adapts to harsh steel mill environments. |
| Intelligent Coordination Device | Wheel sensors, track scales, etc., equipped with an RFID linkage module to achieve integrated identification, weighing, and data transmission. Supports dual-redundant communication to ensure stability. |
| Software Platform | RFID Carriage Identification and Management Platform, integrates core functions such as coding, identification, and dispatching. Can interface with the steel mill’s existing systems to achieve full-process intelligent control. |
SEIKO RFID products now support Impinj Gen2X. Impinj has released Gen2X, a technology optimized based on the RAIN RFID Gen2 protocol. This enhances the reading speed, range, and accuracy of RFID readers. SEIKO is dedicated to providing innovative and efficient RFID solutions. Its industrial RFID identification systems, integrated readers, fixed readers, and handheld PDA terminals now support Gen2X, empowering enterprises to deepen their digital transformation.
