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High-Speed Cylindrical Cell Filling Machine
This advanced filling system utilizes a proprietary five-stage injection and eight-stage absorption process to ensure complete and uniform electrolyte saturation in 18650、21700、26650 cylindrical cells. It significantly enhances battery consistency, cycle life, and safety, making it ideal for high-volume EV and ESS battery production lines.
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High-Performance Cylindrical Cell Filling Machine – ≥100 PPM, ±0.12g Accuracy for 18650, 21700 & 26650 Production
⚡ Key Performance: ≥100 PPM production speed | ±0.12g filling accuracy | ≤180s soaking time | ≤ -0.095MPa vacuum level | Five-stage segmented injection | Quick changeover (<30 min)
Product Overview – Cylindrical Battery Filling Equipment
PPCELL’s cylindrical cell filling machine is a high-speed, fully automatic cylindrical battery filling equipment designed for 18650, 21700, and 26650 cells. Whether you produce power batteries for electric vehicles or high-capacity cells for energy storage systems, our 18650 battery filling machine delivers unmatched injection accuracy, throughput, and reliability.
This advanced filling system utilizes a proprietary five-stage segmented injection and eight-stage vacuum-assisted absorption process to ensure complete and uniform electrolyte saturation in cylindrical cells. It significantly enhances battery consistency, cycle life, and safety, making it ideal for high-volume EV and ESS battery production lines. With quick changeover tooling, switching between 18650, 21700, and 26650 formats takes under 30 minutes, minimizing downtime and maximizing production flexibility.
Key Features – High-Speed Cylindrical Cell Filling Machine
- Five-Stage Segmented Injection: Prevents electrolyte overflow and ensures uniform wetting inside the jelly roll, critical for thick electrodes used in high-capacity 21700 and 26650 cells.
- High-Vacuum Filling Chamber (≤ -0.095 MPa): Removes trapped air, accelerates electrolyte absorption, and reduces total soaking time to ≤180 seconds.
- Ceramic Metering Pump with ±0.2% Accuracy: Long life (>50 million cycles) and chemically resistant to LiPF₆ electrolytes, ensuring consistent dosing over millions of cycles.
- Closed-Loop Pre-Weighing and Post-Weighing: Each cell is weighed before and after injection (accuracy ±0.01g); data is used for real-time filling adjustment and MES upload.
- Automatic Nozzle Cleaning & Residual Liquid Collection: Prevents electrolyte cross-contamination and keeps cell surfaces clean.
- Quick Changeover Tooling: Switch between 18650, 21700, and 26650 in under 30 minutes.
- Seamless MES Integration: All filling data – including individual cell weight, filling volume, and process alarms – are transmitted to your MES system for 100% traceability.
Technical Specifications – Cylindrical Cell Filling Equipment
| Parameter | Specification |
|---|---|
| Applicable Cell Formats | 18650, 21700, 26650 (customizable to other cylindrical sizes) |
| Filling Accuracy | ±0.12g (typical) / ±0.5% of target weight |
| Pump Type & Accuracy | Ceramic rotary pump, accuracy ±0.2% |
| Weighing Accuracy (Pre/Post) | ±0.01g |
| Production Capacity | ≥100 PPM (cells per minute) |
| Vacuum Level in Filling Chamber | ≤ -0.095 MPa |
| Filling Volume Range | 0 – 30 g (adjustable via HMI) |
| Soaking (Resting) Time | ≤180 s (programmable, with high/low pressure cycles) |
| Power Supply | AC380V, 50Hz, 3‑phase |
| Machine Dimensions (L×W×H) | 7200 × 3200 × 2800 mm (customizable) |
Seamless Integration with Your Cylindrical Cell Production Line
Our cylindrical cell filling machine is designed as a modular station that fits perfectly into a full cylindrical battery production line. It communicates with upstream equipment (winding/stacking) and downstream formation lines via standard industrial protocols (OPC UA, Modbus TCP). All filling data – including individual cell weight, filling volume, and process alarms – are transmitted to your MES system for 100% traceability.
Why Choose PPCELL as Your Cylindrical Battery Filling Equipment Partner?
- 15+ Years of Battery Equipment Experience: Over 200 global customers.
- In-House Engineering Team: We design, manufacture, and support every machine.
- Turnkey Project Delivery: From layout design to installation, training, and after‑sales.
- Global Service Network: 24/7 remote support, on‑site service within 48 hours.
- Proven Technology: Five-stage segmented injection and eight-stage vacuum-assisted absorption for superior electrolyte wetting.
FAQ
Q1: What is the difference between your cylindrical cell filling machine and a standard filling machine?
Our machine uses five‑stage segmented injection under vacuum, which significantly reduces electrolyte spilling and improves absorption speed – especially important for thick electrodes used in high‑capacity 21700 and 26650 cells.
Q2: Can you customize the machine for other cylindrical cell sizes (e.g., 4680)?
Yes. PPCELL offers custom tooling and parameter sets for all cylindrical formats, including 4680 large‑format cells.
Q3: How is data traceability handled?
Each cell is barcode‑scanned at the infeed. Pre‑weighing, filling parameters, and post‑weighing results are stored locally and can be uploaded to your MES system in real‑time.
Q4: What is the expected cycle life of the ceramic metering pump?
The ceramic pump is designed for >50 million cycles with minimal wear, ensuring long-term reliability and consistent dosing accuracy.
Q5: Does the machine support automatic cleaning between batches?
Yes. The automatic nozzle cleaning and residual liquid collection system prevents cross‑contamination between different electrolyte formulations or cell types.
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Request a Custom Quote
Our cylindrical cell filling experts can help you select the right machine configuration for your cell format and production target. We provide free technical consultation, on‑site commissioning, and operator training.