Semi Automatic Cylindrical and Prismatic Lithium Ion Battery Winding Machine

Product Overview

This semi-automatic winding system delivers industrial-grade precision for the fabrication of both cylindrical and prismatic lithium-ion battery cells. Designed to bridge the gap between benchtop R&D and high-volume mass manufacturing, the equipment streamlines cell assembly by combining manual electrode feeding with automated winding and precision needle extraction. By swapping dedicated winding pin assemblies, operators can effortlessly transition between diverse cylindrical cell sizes and flat prismatic form factors on a single compact platform.

Built specifically for battery development laboratories, pilot production lines, and specialized energy storage manufacturing, the equipment accommodates both aqueous and solvent-based electrode chemistries alongside varied polymer separators. The machine integrates continuous separator feeding and isolated guiding mechanisms, substantially mitigating operator contact and preventing contaminants that lead to internal micro-short circuits. This architecture guarantees repeatable winding geometry, tight layer alignment, and uniform mechanical tension distribution throughout the active cell structure.

Constructed with heavy-duty structural components and high-precision drive mechanics, this winding unit guarantees long-term operational stability and exceptional yield under continuous production cycles. Its advanced stepper motor architecture and single-side adjustable feeding chutes eliminate material drift, ensuring that every wound jelly roll meets rigorous industrial tolerances. Process engineers and technical teams can rely on this equipment to achieve outstanding cell capacity uniformity, minimal internal resistance variance, and high overall equipment effectiveness.

Key Features

• Dual-Format Tooling Versatility: Quickly reconfigures between cylindrical (mandrel diameters Ø3.5 mm to Ø5.0 mm) and prismatic (combined core widths 38 mm to 60 mm) winding operations through interchangeable modular pin assemblies, maximizing facility flexibility.
• Precision Stepper Motor Drive: Operates with a closed-loop stepper-driven winding shaft that maintains constant angular velocity and stable dynamic torque throughout the winding cycle, preventing electrode layer stretching, wrinkling, or slippage.
• High Alignment Accuracy: Maintains a winding alignment tolerance of ≤0.5 mm through single-side micro-adjustable guide plates, guaranteeing precise overlap between anode, cathode, and separator layers for optimal electrochemical performance.
• Optimized Tension and Uniformity Control: Delivers consistent, balanced web tension to both current collectors and separators during winding, directly improving volumetric energy density, internal resistance (DCR) uniformity, and finished cell capacity consistency.
• Automated Needle Extraction System: Features automated pneumatic extraction of the winding pin post-process, eliminating mechanical distortion of the wound core and reducing physical handling before final taping and unloading.
• Continuous Separator Feed Path: Integrates a continuous separator roll feed mechanism that reduces operator intervention during layer interleaving, substantially lowering the risk of particulate contamination, internal shorts, and self-discharge.
• Configurable Process Sequencing: Allows complete operational customization via the touchscreen interface, supporting selectable electrode feeding sequences (anode-first or cathode-first) and configurable outer wrapping modes (separator wrap or electrode wrap).
• High Production Yield and Uptime: Engineered to achieve a finished core qualification rate (yield) of ≥98% and a baseline equipment uptime availability of ≥95%, ensuring reliable throughput in demanding pilot environments.
• Intuitive Touchscreen HMI: Features a user-friendly programmable controller interface allowing rapid setup, fine-tuning of speed profiles, real-time diagnostic feedback, and recipe storage for various battery chemistries.

Applications

Technical Specifications

Why Choose This Product

• Dual-Capability Manufacturing Economy: By integrating both cylindrical and prismatic winding functionalities into a single rigid chassis, this system dramatically cuts facility capital expenditure and floor space requirements while maintaining uncompromising fabrication tolerances.
• Electrochemical Consistency by Design: With continuous-path separator feeding, stepper-stabilized tension profiles, and high-precision single-side adjustable guide plates, the machine directly tackles the root causes of cell degradation—minimizing internal short risks, lowering DC internal resistance, and enhancing batch-to-batch capacity uniformity.
• Robust Industrial Build Quality: Built in strict compliance with GB 5226.1 electrical and mechanical safety standards, the equipment features heavy-gauge structural framing, premium pneumatic actuators, and industrial-grade electronics rated for continuous multi-shift operation.
• Flexible Process Customization: Easily accommodate specialized R&D architectures with user-selectable electrode entry sequences (anode-first or cathode-first), adjustable outer wrapping protocols, and rapid tooling swaps for diverse jelly roll geometries.

Contact our technical engineering team today to discuss your cell specifications, request a custom tooling consultation, or receive a formal quotation for your battery fabrication facility.

Trusted by Industry Leaders