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Fully Automatic Cylindrical Battery Production Line
Our fully automatic cylindrical battery production line integrates cylindrical battery formation and grading cabinets (1280 channels each) into a complete cylindrical battery formation and grading line. Designed for 18650 and 21700 cells, the system features 0.05% accuracy, 1s data logging, independent CC/CV per channel, and seamless AGV/MES/WMS integration – achieving 130,000 cells/day.
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Fully Automatic Cylindrical Battery Production Line – High‑Precision Cylindrical Battery Formation & Grading Line
What Is a Cylindrical Battery Formation and Grading Cabinet?
A cylindrical battery formation and grading cabinet is a high‑precision bed‑of‑nails (probe‑type) equipment used to apply formation charge/discharge cycles and measure capacity for cylindrical cells (18650/21700). Our cabinet provides 1280 channels per unit (4 layers × 160×2 channels), with each channel having its own constant current/constant voltage (CC/CV) source. The 4‑wire Kelvin connection eliminates contact resistance, ensuring 0.05% measurement accuracy. Data is logged every second, providing exceptional stability and repeatability.
Cylindrical Battery Formation and Grading Line – System Overview
The cylindrical battery formation and grading line consists of 500 cabinets (each 1280 channels) plus 14 AGV robots, MES, and WMS. The line processes trays sized L418×W268×H83mm, each holding 18650 or 21700 cells. Key capabilities:
Single‑layer independent start – Each of the 4 layers (256 channels per layer) can be activated independently, boosting overall efficiency.
Bidirectional AC/DC inverters – Energy feedback reduces power consumption.
Real‑time communication with MES for full traceability and SPC analysis.
Fully Automatic Cylindrical Battery Production Line – Key Technical Features
This fully automatic cylindrical battery production line is designed for high‑volume manufacturing (130,000 cells/day) with minimal manual intervention:
| Feature | Specification |
|---|---|
| Accuracy | ≤0.05% of full scale |
| Data logging rate | 1 second per cycle |
| Connection method | 4‑wire Kelvin test interface |
| Independent control | Each channel has own CC/CV source (start/stop/pause/resume/protection) |
| Power module | 8/16‑channel CC/CV modules + bidirectional AC/DC inverters |
| Modular design | Easy maintenance, low downtime |
| Software | MES (manufacturing execution) + WMS (warehouse management) |
| Automation | 14 AGVs for tray transport between cabinets and storage |
Modular Design & Easy Maintenance
The system adopts a modular philosophy. Each cabinet, power module, and probe assembly can be replaced independently, reducing mean time to repair (MTTR). The bed‑of‑nails structure is robust and designed for continuous 24/7 operation.
High Precision with 4‑Wire Kelvin Connection & 0.05% Accuracy
The 4‑wire test interface separates current‑carrying and voltage‑sensing paths, eliminating errors from contact resistance and cable losses. This is essential for achieving 0.05% accuracy, which directly impacts the consistency and reliability of battery packs.
Independent Per‑Channel Control & Real‑Time Monitoring
Each channel operates independently, allowing:
Individual channel start/stop without affecting others.
Programmable formation profiles (charge, rest, discharge, cycle).
Automatic fault detection with alarm, stop, and on‑screen diagnostics.
AGV, MES & WMS Integration for Full Automation
The line is Industry 4.0 ready:
14 AGVs automate tray movement between formation cabinets, buffer storage, and grading unloading.
MES monitors production, collects quality data (voltage, capacity, IR), and provides full traceability.
WMS manages tray inventory, AGV missions, and storage logistics.
Production Capacity & System Configuration
| Parameter | Value |
|---|---|
| Cell types | 18650, 21700 (and other cylindrical cells) |
| Tray size | 418 × 268 × 83 mm |
| Channels per cabinet | 1280 (4 layers × 320 channels/layer) |
| Number of cabinets | 500 units |
| Daily output | 130,000 cells/day |
| AGV robots | 14 units |
| Accuracy | 0.05% |
| Data logging interval | 1 second |
| Control mode | Per‑channel independent CC/CV |
| Software | MES + WMS integrated |
📥 Download the Detailed Technical Brochure to explore full specifications and integration guides.
📞 Contact Our Engineering Team for a provide confidential consulting and customized performance analysis for your specific yield goals.