Complete Cylindrical Lithium Battery Production Line Solutions

  • Turnkey Equipment for High-Performance Cylindrical Cell Manufacturing

Transform your battery manufacturing with our fully integrated cylindrical lithium battery production lines. From electrode preparation to final packaging, we deliver precision-engineered solutions that ensure consistent quality, optimal yield, and scalable production capacity for formats including 18650, 21700, 4680, and custom specifications.

99.8%

Equipment Yield Rate

30+

Global Partners

40%

Production Efficiency Boost

100+

Automated Line Cases

Complete Cylindrical Cell Equipment Suite

Our comprehensive equipment portfolio covers every critical stage of cylindrical cell production, engineered for precision, speed, and reliability across all major cell formats.

Electrode Manufacturing

Core equipment for preparing high-quality electrodes, ensuring consistency in slurry mixing, coating, drying, calendering, and slitting.

  • Slurry Mixer
Evenly mixes cathode/anode materials with binders and solvents to form a stable, uniform slurry. Key Spec: Viscosity Range: 500–5000 cps, Mixing Uniformity: ≤±2%
  • Coating Machine
Applies slurry onto aluminum (cathode) or copper (anode) foil with uniform thickness and edge control. Key Spec: Coating Accuracy: ±1 μm, Speed: 80 m/min
  • Drying Oven
Uses multi-zone hot air or IR heating to dry electrodes and remove solvents effectively. Key Spec: Temp Uniformity: ±2 °C, Max Temp: 150 °C
  • Calendering Machine
Increases electrode density and smoothness via precision rolling to improve conductivity. Key Spec: Pressure Control: ±0.5 T, Gap Accuracy: ±1 μm
  • Slitting Machine
Cuts dried and calendered electrodes to specified widths for winding, with minimal burrs. Key Spec: Burr: ≤5 μm, Speed: 100 m/min
  • Electrode Defect Inspection Machine
Performs real-time inspection of coated electrodes to detect pinholes, misalignment, and surface defects. Key Spec: Detection Accuracy: ≥99.5%, Speed: 60 m/min

Cell Assembly

Precise equipment for notching, winding, tab welding, and inserting cell cores into cylindrical housings.

  • Notching Machine
Punches accurate shapes to form tabs on electrodes, ensuring proper tab positioning. Key Spec: Position Accuracy: ±0.1 mm, Efficiency: 0.2 s/pcs
  • Winding Machine
Winds cathode, anode, and separator into tightly aligned cylindrical jelly rolls. Key Spec: Alignment Accuracy: ±0.1 mm, Efficiency: 0.15 s/pcs
  • Laser Welding Machine
Welds tabs to lead pins or can covers with high consistency using laser or ultrasonic technology. Key Spec: Welding Accuracy: ±0.1 mm, Speed: 0.2 s/pcs
  • Core Inserting Machine
Automatically inserts wound jelly rolls into steel or aluminum cylindrical shells. Key Spec: Insertion Accuracy: ±0.15 mm, Throughput: 35 PPM
  • Vacuum Drying Oven
Removes residual moisture from cell cores to prevent electrolyte decomposition. Key Spec: Vacuum Level: ≤10 Pa, Temp Range: 60–150 °C

Electrolyte Filling & Sealing

Ensures safe and accurate electrolyte injection, sealing, and degassing in vacuum conditions.

  • Vacuum Electrolyte Filling Machine
Injects electrolyte under vacuum to ensure full wetting of internal materials and zero bubbles. Key Spec: Filling Accuracy: ±0.01 g, Vacuum: ≤100 Pa
  • Aging Shelf (Standing Rack)
Allows cells to sit for a specified time to ensure electrolyte saturation and absorption. Key Spec: Holding Time: 6–24 hrs, Temp Control Optional
  • Pre-sealing Machine
Performs preliminary sealing of the cell before final crimping. Key Spec: Sealing Accuracy: ±0.1 mm, Leak Rate: <10⁻³ mbar∙L/s
  • Crimping Machine
Final vacuum sealing of the cell by crimping the cap tightly to the can. Key Spec: Crimping Force: 30–80 kN, Efficiency: 40 PPM
  • Shell Cleaning Machine
Cleans any residual electrolyte from the cell surface for safe handling and clean appearance. Key Spec: Cleaning Efficiency: ≥99%, Speed: 40–60 PPM

Formation & Grading

Activates battery chemistry and performs performance classification for quality assurance.

  • Formation Cabinet

Conducts controlled charge/discharge cycles to form the SEI layer and activate the cell.
Key Spec: Voltage Accuracy: ±0.02 V, Current Accuracy: ±0.05%

  • Grading Cabinet
Sorts cells by capacity, voltage, and internal resistance to ensure consistency for battery packs. Key Spec: Channels: 128CH/Cabinet, IR Accuracy: ±0.5 mΩ
  • OCV/IR Tester
Measures open-circuit voltage and internal resistance for pre-pack evaluation. Key Spec: Voltage Accuracy: ±1 mV, IR Accuracy: ±0.2 mΩ

Final Testing & Packing

Ensures each cell meets appearance and traceability standards before shipment.

  • Vision Inspection Machine
Performs AI-based appearance inspection to detect surface defects, printing issues, or swelling. Key Spec: Detection Accuracy: ≥99.8%, Speed: 50 PPM
  • Laser Marking Machine
Engraves QR codes, serial numbers, and traceability info on cell shells. Key Spec: Marking Accuracy: ±0.05 mm, Speed: 400 chars/s
  • Labeling Machine
Applies brand, specification, or anti-counterfeit labels automatically to each cell. Key Spec: Labeling Accuracy: ±0.1 mm, Efficiency: 60–80 PPM
  • Battery Packing Machine
Performs automated tray loading, blister packing, boxing, and sealing for shipment. Key Spec: Throughput: 60 PPM, Packaging Accuracy: ±1 mm
  • Sorting & Buffer System
Distributes graded cells into trays or modules for efficient warehousing and logistics. Key Spec: Sorting Accuracy: 100%, Capacity: ≥10,000 cells/day

Innovation-Driven Technical Strength

Continuous R&D investment and technological innovation are the cornerstones of our industry leadership. We are committed to applying cutting-edge technology to our equipment to create greater value for our customers.
Learn More Technical Details

Top R&D Team

Led by PhDs and senior industry experts, covering multiple fields including mechanical, electrical, software, and material science.

Core Technology Patents

Holding over 50 core technology patents, especially leading the industry in high-speed stacking, precision control, and intelligent inspection.

Advanced Laboratory

Equipped with advanced material analysis and cell testing centers, providing strong data support for equipment R&D and process validation.

Technological Innovations

Pioneered an AI-based visual defect detection system, increasing inspection efficiency and accuracy by 40%.

See Our Cylindrical Lithium Battery Production Line in Action

Common Cylindrical Cell Production Challenges

High-precision cylindrical cell manufacturing requires more than basic automation. It demands tight process coordination, stable equipment performance, and full lifecycle technical support. Manufacturers often face critical challenges that directly affect efficiency, product yield, and scalability.

Equipment–Process Mismatch

Cylindrical cell production involves specific structural and process requirements. Standard equipment often lacks the flexibility to adapt.
  • Incompatibility with multiple chemistries (NCM, LFP, etc.) and cell sizes (18650, 21700, 4680)
  • Limited adaptability between different electrode winding schemes
  • Rigid production layouts with poor line customization

Precision & Consistency Challenges

Even slight process deviations can lead to internal short circuits, electrolyte leakage, or capacity failure.
  • Inconsistent slurry coating thickness and burrs after slitting
  • Misalignment during electrode winding reduces energy density and safety
  • Fluctuating sealing temperature, pressure, or vacuum levels cause swelling and leakage

Limited Automation & Low Throughput

Partial automation or poorly integrated equipment restricts productivity and increases labor costs.
  • Manual or semi-automatic steps create process bottlenecks
  • Lack of synchronization between upstream (electrode) and downstream (assembly/testing) lines
  • Difficult to achieve fast takt time (e.g., 0.15–0.2s/pcs for high-speed lines)

Yield Loss & Quality Control Gaps

Poor control of critical steps leads to high defect rates and costly rework.
  • Inaccurate electrolyte injection or poor vacuum control causes internal pressure buildup
  • Inconsistent welding or cell crimping increases short-circuit risks
  • Unstable formation and grading affects capacity sorting accuracy
  • High rejection rate during pilot runs or new product introductions (NPIs)

Long Lead Times & Weak Support

For mass production, any delay in deployment, training, or service can lead to major setbacks.
  • Long equipment delivery cycles and unclear project timelines
  • Lack of local technical teams or rapid-response troubleshooting
  • Insufficient operator training and handover processes

Scalability & Integration Barriers

Scaling from pilot to mass production is difficult without unified and modular solutions.
  • Fragmented supply chain delays equipment integration
  • No standard communication protocol across machines
  • Lack of full turnkey service from design to production ramp-up

Our Turnkey Solution Solves These Issues

We don’t just provide equipment — we deliver an end-to-end cylindrical cell manufacturing solution designed to eliminate key production pain points, maximize efficiency, and accelerate your time to market.
Process-Integrated Equipment
Challenge Solved: Equipment–Process Mismatch
  • Seamless coordination between winding, welding, electrolyte filling, and crimping ensures each unit operation works in harmony.
  • Modular design supports flexible line layouts and diverse cell formats (e.g., 18650, 21700, 4680).
  • Supports both NCM and LFP chemistries with adaptable process settings and recipe management.
  • Customizable configurations for winding direction, welding methods, and liquid injection schemes.
Challenge Solved: Precision & Consistency Challenges
  • Servo-controlled systems for high-accuracy winding, sealing, and laser welding.
  • Real-time thickness monitoring and closed-loop feedback in coating and slitting units.
  • Vacuum-level and temperature control during electrolyte filling and sealing to prevent swelling or leakage.
  • In-line vision inspection and traceability for early defect detection and rejection.
Challenge Solved: Limited Automation & Low Throughput
  • Fully automated line from electrode loading to end-of-line testing and sorting.
  • Optimized takt time ≤ 0.2s/cell; synchronized machine-to-machine communication ensures smooth transitions.
  • Intelligent buffer zones between modules to balance speed mismatches and reduce idle time.
  • Real-world yields of up to 99.7% under stable production conditions.
Challenge Solved: Yield Loss & Quality Control Gaps
  • High-precision electrolyte filling with dual-stage vacuum systems for air removal.
  • Ultrasonic and laser welding systems ensure consistent electrical performance and mechanical reliability.
  • Automated formation, grading, and OCV testing with real-time capacity tracking.
  • Defect mapping and batch-level analysis support root cause identification and continuous improvement.
Challenge Solved: Long Lead Times & Weak Support
  • Rapid delivery with pre-integrated, tested lines tailored to your plant layout.
  • Global service teams and remote diagnostics ensure 24/7 technical support.
  • On-site commissioning, operator training, and full documentation provided.
  • Dedicated project manager and after-sales engineer from kick-off to mass production.
Challenge Solved: Scalability & Integration Barriers
  • All core modules — including control software, MES interface, and traceability systems — developed and supplied by our team.
  • Unified architecture simplifies future expansion or product line upgrades.
  • Flexible from pilot line to multi-GWh scale — with guaranteed process continuity.
  • Single point of contact for equipment, service, and technical integration.
  • ISO 9001:2015 certified production system
  • Equipment compliant with CE, UL, and RoHS standards
  • Integrated safety interlocks, alarms, and process control logic
  • Supports audits and validation for automotive and consumer battery lines

Industries We Serve

Certifications & Standards

  • Quality, Safety & Compliance—Built In

ISO 9001:2015

Quality management system certification ensuring consistent product quality and customer satisfaction.

CE Marking

European conformity certification confirming compliance with health, safety, and environmental protection standards.

RoHS Compliance

Restriction of hazardous substances compliance ensuring environmental safety and sustainability.

UL Listed

North American safety standards compliance for industrial battery manufacturing equipment.

Partner with Us for End-to-End Cylindrical Battery Production

Whether you’re launching a new production line or upgrading an existing facility, we’re your one-stop partner for fast deployment, reliable yield, and long-term scalability. Our technology is proven. Our service is global. And our equipment is ready to support the battery cells of the future.

FAQ

Here are some common questions from our customers. If you have other inquiries, please feel free to contact us.
1. What is included in your cylindrical battery turnkey solution?
Our turnkey solution covers the entire cylindrical cell production process—from electrode preparation, winding, welding, electrolyte filling, crimping, to formation, grading, and final testing. We also provide factory layout design, automation integration, MES interface, and full technical support.
We support mainstream cylindrical formats including 18650, 21700, and 4680 cells. Chemistries like NCM (Nickel Cobalt Manganese) and LFP (Lithium Iron Phosphate) are fully compatible with our process equipment and software.
Our high-speed lines achieve a takt time as fast as 0.15–0.2s per cell. A standard line can produce up to 60–120 cells per minute, depending on the configuration. Customizations for higher throughput are also available.
Yes. We offer modular and flexible layout designs tailored to your available factory space, production volume, and process flow preferences. 3D layout planning is provided before production.
Our equipment is equipped with precision servo systems, inline vision inspection, closed-loop control, and real-time monitoring to ensure consistency at each stage. Under stable operation, yield rates can reach 99.7% or higher.
We offer fully automated production lines, including robotic loading/unloading, inline buffer systems, automatic defect rejection, and MES connectivity. Semi-automated lines are also available for flexible or budget-conscious operations.
Standard delivery is typically 90–150 days, depending on the production scale and customization level. Installation and commissioning on-site usually take 2–6 weeks, supported by our experienced engineering team.
Yes. We offer comprehensive on-site and remote training for operators and engineers. Our global support team provides 24/7 technical assistance, spare parts, remote diagnostics, and periodic maintenance services.
Absolutely. Our turnkey lines support MES integration, barcode/QR tracking, and full-process traceability—from electrode batching to final cell testing. We also offer custom protocol integration if needed.
Yes. Our solutions are designed for scalability. You can begin with a pilot or low-volume line, and later expand to full GWh-scale production with minimal disruption, thanks to our modular architecture and unified software control.