How to Automate Cell Grading with Semco Infratech

As lithium-ion battery production in India grows, manufacturers are seeking faster, smarter ways to ensure only the best cells are used in battery packs. Manual cell grading is no longer efficient or scalable for modern production lines. That’s where Semco Infratech comes in—offering advanced tools that automate the entire cell grading process, from testing to sorting and data logging.

If you're still relying on semi-manual or outdated systems, here's how you can fully automate cell grading using Semco Infratech’s machines and solutions.

Why automate cell grading

Cell grading involves evaluating each battery cell for critical parameters like voltage, internal resistance (IR), and capacity. Manually measuring and sorting thousands of cells every day is time-consuming, error-prone, and labor-intensive. With automation, you get:

• Faster throughput with consistent accuracy

• Elimination of human errors in testing and sorting

• Seamless data collection and traceability

• Lower operational costs and higher pack quality

What Semco offers for automated cell grading

Semco Infratech, India’s leading battery manufacturing equipment provider, offers complete Lithium-Ion Cell Grading solutions that include:

• Multi-channel testing systems (64, 128, 256+ channels)

• Precision voltage, IR, and capacity measurement

• Automated sorting mechanisms

• Barcode scanning and data logging

• Local support, spares, and software updates

These systems are already in use by top Indian battery manufacturers for EVs, solar, telecom, and energy storage applications.

Step-by-step automation with Semco

Step 1: Load cells in trays or feeders

Operators begin by placing cells into trays or automated feeders. Semco’s machines are compatible with cylindrical, pouch, and prismatic cells. This step is simple and safe, and trays can be designed for easy handling during grading and packing.

Step 2: Initiate automated multi-channel testing

Once loaded, the Semco system begins grading cells simultaneously across dozens or hundreds of channels. Each channel records:

• Voltage

• Internal Resistance

• Capacity (optional in formation-grade models)

This parallel testing drastically reduces time per batch and delivers lab-grade accuracy.

Step 3: Sort cells into matching bins

After grading, the system automatically sorts cells into predefined groups or bins based on the measurement values. For example:

• Bin A: 1.75–1.90 mΩ

• Bin B: 1.91–2.05 mΩ

• Bin C: Above 2.05 mΩ

This sorting is controlled by Semco’s software, with programmable thresholds and full traceability. No manual work is required during this stage.

Step 4: Record data with traceability

Semco’s software logs every test result against cell ID or barcode (if integrated). The data can be exported in CSV or Excel format, linked to batch codes, and reviewed for quality audits. This ensures complete traceability across the production cycle.

Step 5: Print labels or transfer data to pack line

The sorted and graded cells can be labeled with printouts for easy tracking during pack assembly. You can also integrate the grading system with your MES or ERP systems for smooth handover to the next production stage.

Key benefits of Semco’s automated grading

• Faster Production: Grade 1,000–10,000+ cells per day

• High Accuracy: Industrial-grade sensors ensure precise matching

• Low Rejection Rates: Better binning leads to better pack balance

• Easy to Operate: User-friendly interface and simple workflows

• Fully Supported: Indian service, training, and preventive maintenance

Why choose Semco over imports

Unlike imported Chinese or Korean systems, Semco machines are built for Indian factory conditions and are supported locally. This means:

• No delays in service or spares

• No import duties or hidden logistics costs

• Easy communication with engineers and trainers

• Customizable systems based on real production needs

Conclusion

Automating cell grading is not just a time-saver—it’s a strategic upgrade that improves pack safety, manufacturing efficiency, and business scalability. With Semco Infratech, Indian Battery Machines Manufacturers gain access to smart, high-speed grading systems backed by local support and proven performance.

Whether you’re scaling production or starting a new line, Semco gives you the tools to automate cell grading with confidence and precision. Choose Semco to move faster, grade smarter, and deliver better batteries.