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Pouch Cell Final Vacuum Sealing Machine
Our pouch cell final vacuum sealing machine (Model 350) is designed for vacuum degassing and final sealing of large‑format pouch cells after formation. This pouch cell degassing and resealing machine delivers ±0.01mm seal parallelism, ±2°C temperature control, and adjustable seal angle (0‑20°). As pouch battery second sealing equipment, it achieves 100‑200 cells per hour, 95% uptime, and 99% yield – ideal for EV, ESS, and high‑capacity pouch cell production.
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Pouch Cell Final Vacuum Sealing Machine – High‑Precision Vacuum Sealing for Large‑Format Pouch Batteries
What Is a Pouch Cell Final Vacuum Sealing Machine?
A pouch cell final vacuum sealing machine is used to remove gases generated during formation and perform the final hermetic sealing of pouch cells. This process ensures cell safety, prevents electrolyte leakage, and maintains long‑term cycle life. Our Model 350 is specifically designed for large‑format pouch cells (up to 630mm length, 350mm width including gas pocket, thickness 3‑15mm) and is widely used in EV, energy storage, and high‑power battery manufacturing.
Pouch Cell Degassing and Resealing Machine – Key Technical Features
This pouch cell degassing and resealing machine incorporates precision engineering for reliable, high‑quality seals:
Seal parallelism – ≤±0.01mm (tested with carbonless copy paper at 0.6MPa, 200°C).
Seal head temperature uniformity – ≤±3°C across the sealing surface.
Seal head machining precision – ±0.008mm.
Sealing temperature range – Ambient to 250°C, adjustable; control accuracy ±2°C with compensation.
Final seal angle – 0 to 20 degrees, adjustable.
Vacuum level in chamber – ≤ -0.095 MPa.
Sealing time – 0‑99.9 seconds, adjustable.
Seal head length – Up to 900mm.
Seal width – 5‑10mm (customer‑specified at order).
Seal thickness range – 0.14‑0.3mm.
Pouch Battery Second Sealing Equipment – Technical Specifications
As dedicated pouch battery second sealing equipment, the Model 350 delivers the following performance:
| Parameter | Specification |
|---|---|
| Applicable cell size (L×W×Th) | 630 × 350 (including gas pocket) × 3‑15 mm |
| Seal head length | ≤900 mm |
| Seal width | 5‑10 mm (customer‑specified) |
| Seal thickness | 0.14‑0.3 mm |
| Sealing temperature range | Ambient – 230°C (adjustable, ±2°C control) |
| Chamber vacuum | ≤ -0.095 MPa |
| Sealing time | 0‑99.9 seconds (adjustable) |
| Seal parallelism | ±0.01 mm |
| Final seal angle | 0‑20 degrees (adjustable) |
| Production capacity | 100‑200 EA/hour (depending on operator skill; multiple small cells can be sealed simultaneously) |
| Uptime (availability) | 95% |
| First‑pass yield | 99% (defects caused only by this machine) |
Process Flow & Benefits
The machine operates in a semi‑automatic or automatic sequence:
Cell loading – Operator places the formed cell into the vacuum chamber.
Vacuum degassing – Chamber is evacuated to ≤ -0.095MPa, removing gases from the cell.
Heat sealing – Upper and lower seal heads (heated to programmed temperature) close with controlled pressure and time, creating a hermetic seal.
Angle adjustment – The seal angle (0‑20°) can be adjusted to optimize sealing for different cell designs.
Unloading – The sealed cell is removed.
Key benefits:
High seal integrity – ±0.01mm parallelism and ±2°C temperature control ensure consistent, leak‑free seals.
Flexible angle sealing – 0‑20° adjustable angle accommodates various pouch cell geometries.
Precision components – Machined seal heads (±0.008mm) and uniform heating (±3°C) guarantee reliability.
High throughput – 100‑200 cells per hour; multiple small cells can be sealed in one cycle.
Easy validation – Seal quality can be checked using carbonless copy paper at 0.6MPa, 200°C.
Why Choose This System for Post‑Formation Sealing?
Precision – ±0.01mm seal parallelism, ±2°C temperature accuracy, ±0.008mm seal head machining.
Reliability – 95% uptime and 99% yield minimize production losses.
Flexibility – Adjustable seal angle (0‑20°) and wide seal length (up to 900mm) support diverse cell sizes.
High vacuum – ≤ -0.095MPa ensures thorough degassing.
Easy operation – Programmable temperature, time, and angle via HMI.
Applications
Electric vehicle (EV) pouch cells – Post‑formation final sealing.
Energy storage systems (ESS) – Large‑format pouch batteries.
High‑capacity consumer electronics – Laptop, power tool, and drone batteries.
🔬 High precision – ±0.01mm seal parallelism, ±2°C temperature control, ±0.008mm seal head.
⚡ Flexible & productive – 0‑20° seal angle, up to 900mm seal length, 100‑200 cells/hour.
🏭 Reliable – 95% uptime, 99% yield, vacuum ≤ -0.095MPa.