200mm Wide Pouch Cell Top Side Sealing Machine

Product Overview

This system is a pneumatic heat-sealing solution engineered for top-edge and side-edge sealing of pouch-format lithium batteries. Resistance heating elements transfer heat to copper sealing heads, which conduct controlled thermal energy into aluminum-plastic laminate film. Under regulated pressure, the packaging film softens to a near-molten condition and is compression-bonded into a clean, consistent seal.

Designed for battery research, pilot production, and controlled cell assembly environments, the equipment performs top sealing and side sealing without changing the sealing head. It supports pouch-cell processing where seal appearance, parallelism, edge positioning, and repeatable process conditions are critical. The compact footprint makes it suitable for laboratories and production workstations handling different pouch-cell sizes.

Copper heat-transfer components, pneumatic actuation, linear-guide alignment, and adjustable process settings provide a robust foundation for repeatable operation. Protective measures against high-temperature contact, stable temperature regulation, and accurate pressure adjustment help operators maintain reliable sealing performance under demanding battery fabrication workflows.

Key Features

• Dual Top and Side Sealing Capability: The equipment completes top-edge and side-edge sealing using the same sealing-head arrangement. Operators can process different pouch-cell formats without the downtime and complexity of changing heads for each sealing direction.

• Copper Sealing Heads: The upper and lower sealing heads are manufactured from copper for effective heat transfer. This construction improves thermal response, supports efficient energy use, and helps create flat, visually uniform sealing traces on aluminum-plastic film.

• Adjustable Thermal Process Control: Upper and lower head temperatures are set through the temperature-controller panel buttons. The available range extends from room temperature to 250℃, with temperature-control accuracy of ± 2℃, enabling process settings appropriate to the selected packaging material.

• Regulated Pneumatic Sealing Pressure: A pressure-regulating valve adjusts the force applied by the upper and lower heads. This enables the unit to accommodate varying process requirements and film-stack conditions while providing controlled compression during the heat-sealing cycle.

• Accurate Linear-Guided Head Motion: A cylinder drives the upper hot-sealing head, while two linear guide sleeves direct its movement. The guided structure allows flexible vertical motion with accurate alignment, supporting the parallel seal-edge requirement after compression.

• Selectable Seal Width: The standard seal width is 5mm±0.4, while widths from 2mm to 10mm can be selected by changing the sealing knife. This allows the sealing interface to be matched to the required pouch-cell edge configuration rather than limiting production to one fixed width.

• Adjustable Timing and Edge Positioning: Standard sealing time is 2S-3S and can be adjusted from 0-99s. The distance from the cell body to the heat-seal edge is adjustable from 1-5±0.4mm, providing practical control over the finished edge geometry.

• Operator-Focused Safety and Workflow: A protective design reduces high-temperature burn risk, and a foot switch initiates the sealing action while the operator positions the cell. The unit also includes a material support table and automatic and manual operating functions for adaptable workstation use.

• Compact, Serviceable Construction: An aluminum-profile frame and geometrically formed sheet-metal enclosure provide a compact, orderly machine structure. The equipment is designed for convenient cleaning and copper-mold replacement, helping simplify routine process changeover and maintenance activities.

Applications

Technical Specifications

Operating Sequence

1. Set the required temperature through the controller panel and allow the sealing heads to reach the selected value.
2. Adjust pneumatic pressure through the regulating valve according to the required process condition.
3. Hold the pouch cell and position its sealing edge directly below the sealing heads, aligned with the intended sealing location.
4. Activate the foot switch. The cylinder drives the upper hot-sealing head downward, heating and compressing the aluminum-plastic film until it softens near its melting state and bonds.
5. After the selected sealing interval, remove the cell manually and inspect the finished seal edge for the required flatness, appearance, and alignment.

This sequence combines direct operator placement with controlled thermal and pneumatic action. It is particularly useful where cell dimensions, seal locations, or packaging-film conditions require practical adjustment at the workstation. The ability to set temperature, regulate pressure, alter sealing duration, and adjust the body-to-edge distance gives process teams defined controls for establishing suitable sealing conditions.

Process Considerations

For reliable results, the sealing edge should be positioned accurately before foot-switch activation. The linear-guided upper head is designed to support correct movement and parallelism, but repeatable loading alignment remains an important part of the process. Users should select settings appropriate to the aluminum-plastic film thickness and the seal-edge stack thickness within the stated ranges.

The thermal setting should be allowed to stabilize before processing begins. Because the equipment works by conducting heat through copper heads into the laminate film, appropriate temperature, pressure, and dwell time must be considered together. The standard 2S-3S cycle provides a reference condition, while the 0-99s adjustment range supports process-specific timing requirements.

Seal-width selection is also an important production decision. The standard 5mm±0.4 configuration serves common sealing needs, while optional 2～10mm widths and changeable sealing knives provide a defined route for other required widths. This flexibility helps maintain an orderly process when pouch configurations differ, without requiring a complete change of the primary sealing-head arrangement.

Why Choose This Product

• Purpose-Built for Pouch-Cell Edges: The system is specifically configured for lithium battery top-edge and side-edge sealing, combining both operations without routine head replacement.

• Precision Through Controlled Mechanics: Pneumatic pressure adjustment, cylinder drive, and dual linear-guide sleeves support accurate head movement and the parallelism required for finished sealed edges.

• Efficient Thermal Design: Copper sealing heads provide effective heat conduction from the resistance heating elements, supporting efficient heating and smooth, even seal traces.

• Practical Process Flexibility: Adjustable temperature, time, pressure, edge position, and selectable seal widths give battery teams defined controls for different pouch-cell and aluminum-plastic film conditions.

• Built for Daily Workstation Use: The compact aluminum-profile structure, protective anti-burn design, loading table, automatic/manual functions, and convenient cleaning and copper-mold replacement support dependable routine operation.

Contact us for a quote or a custom pouch-cell sealing solution matched to your battery research, pilot-line, or production workflow.

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