Pouch Cell Vacuum Pre Sealing and Top Side Sealing Machine for Lithium Battery Fabrication

Product Overview

This high-precision sealing system delivers dual-capability packaging for pouch cell manufacturing, combining vacuum pre-sealing and top-and-side sealing within a single, highly adaptable workstation. Built specifically to handle aluminum-laminated films, the equipment provides an airtight, moisture-free environment crucial for preventing electrolyte degradation and eliminating gas pockets. Through an intuitive panel selector, operators can seamlessly transition between automated vacuum chamber cycles and standard atmospheric thermal sealing, maximizing laboratory and pilot-line productivity.

Designed primarily for lithium-ion battery research, advanced energy storage prototyping, and pilot-scale pouch cell fabrication lines, the machine accommodates pouch cells up to 350 mm in length and width. Its robust mechanical construction and accurate thermal distribution ensure uniform hermetic seals across a wide spectrum of pouch chemistries, including solid-state, sodium-ion, and supercapacitor architectures. Target facilities include academic cleanrooms, industrial cell manufacturing labs, and quality inspection centers requiring rigorous process repeatability.

Engineered for continuous operation under demanding laboratory and dry-room conditions, the system integrates industrial-grade pneumatics, externalized electrical controls, and ultra-precise thermal monitoring. By isolating the electrical control enclosure outside the glovebox environment, the unit guarantees long-term operational safety, simplified maintenance, and exceptional thermal stability, delivering the mechanical reliability required for critical cell assembly workflows.

Key Features

• Dual-Mode Operational Versatility: An integrated front-panel rotary switch allows operators to toggle instantly between the vacuum pre-sealing cycle and the top/side sealing mode, consolidating two vital cell assembly operations into a single compact footprint.
• Deep Vacuum Evacuation System: Equipped with a high-accuracy Panasonic digital vacuum meter and automated vacuum valve sequencing, the chamber achieves deep negative pressure exceeding -95 kPa to eliminate micro-bubbles and excess gas before electrolyte sealing.
• Precision PID Thermal Control: Premium Omron temperature controllers provide stable, uniform heating across the sealing heads up to 250°C with an accuracy of ±2°C, preventing thermal stress or delamination of aluminum laminated pouch films.
• High-Accuracy Dwell Timing: A PLC-driven architecture with dedicated time relays governs sealing dwell times from 1 to 99 seconds with ±0.1-second precision, ensuring consistent thermal conduction and reliable weld thickness across every production cycle.
• Automated Die Alignment Guidance: Self-guiding upper and lower sealing heads automatically correct tooling orientation during stroke travel, maintaining a strict sealing edge distance tolerance of no more than 0.5 mm from the edge of the pouch case.
• Robust Pneumatic Actuation: Powered by a heavy-duty 63 mm bore AirTAC cylinder, the mechanical assembly applies uniform, repeatable pressing force across the 6 mm soft-seal head width for leak-free hermetic seals.
• Glovebox-Optimized Split Architecture: The standalone electrical control cabinet is purpose-built for placement outside the glovebox or dry-room enclosure, reducing internal heat buildup, safeguarding electronics against solvent vapors, and streamlining routine servicing.
• Commissioning and Maintenance Amenities: Includes an independent manual adjustment mode, fully adjustable mechanical positioning baffles, and built-in debris filter meshes to ensure effortless tooling setup, rapid pouch positioning, and long-term pneumatic system protection.

Applications

Technical Specifications

Why Choose This Product

• Engineered Dual-Process Efficiency: Eliminates the capital expense and floor space of running separate pre-sealing and top/side sealing equipment by combining both functions into a singular, high-precision workstation.
• Superior Seal Uniformity: The combination of a 63 mm AirTAC drive cylinder, self-aligning die heads, and Omron PID thermal management guarantees uniform contact pressure and heat transfer, completely eliminating cold spots and localized over-thinning.
• Optimized for Controlled Atmosphere Integration: Featuring an isolated external control console and integrated air filtration, this equipment ensures zero volatile organic chemical (VOC) contamination of electronics and maintains glovebox atmospheric purity.
• Micro-Precision Edge Control: Advanced self-guiding tooling limits pouch edge deviation to under 0.5 mm, minimizing dead volume and delivering clean, professional, factory-grade cell geometry.
• Industrial Component Reliability: Built strictly with world-class components—including Panasonic digital vacuum instrumentation and Omron PID controllers—to ensure decades of dependable, low-maintenance service in rigorous research and production environments.

Contact our technical engineering team today to request a quotation or explore custom tooling and chamber configurations tailored to your pouch cell fabrication workflow.

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