Vacuum Pre Sealing Machine Top Side Sealing Machine

Product Overview

This vacuum pre sealing machine and top side sealing machine is designed for controlled pouch battery packaging operations requiring repeatable thermal sealing and reliable air removal. The equipment combines two operating modes in one unit: vacuum pre-sealing for removing gases from the cell package before sealing, and top-side sealing for completing the upper or side sealing operation. A selector switch allows the operator to choose the required process before starting the cycle.

The system is suited to pouch cell fabrication, battery research, laboratory-scale production, and advanced materials workflows where package integrity and process consistency are important. It accommodates battery packages up to 350 mm long, 350 mm wide, and 12 mm high. The equipment is configured for demanding glovebox environments, with the electrical control box positioned outside the glovebox for convenient access and maintenance.

Reliable cycle control comes from PLC operation, automatic temperature regulation, adjustable sealing time, and automatic pressure recovery after vacuum sealing. Automatic alignment of the upper and lower sealing heads keeps the sealing edge within 0.5 mm of the battery package edge, supporting accurate positioning across repeated operations. Manual functions and a movable baffle simplify setup and process adjustment.

Key Features

• Dual Operating Modes: The selector switch supports both vacuum pre-sealing and top-side sealing, allowing one unit to handle multiple pouch battery packaging steps without changing the core equipment.

• High Vacuum Capability: The vacuum chamber can reach more than -95 kPa, enabling effective gas removal during pre-sealing and supporting controlled pouch cell packaging processes.

• Automatic Vacuum Cycle: During pre-sealing, the chamber closes, the vacuum valve opens, and evacuation continues until the set vacuum level is reached. The valve then closes automatically before the programmed vacuum delay and sealing sequence begins.

• Controlled Thermal Sealing: The sealing head operates across the specified temperature range with temperature control accuracy of ±2°C. This supports consistent heat transfer and repeatable sealing results for battery packaging materials.

• Adjustable Sealing Time: Sealing time can be set from 1 to 99 seconds, while time accuracy is controlled to ±0.1 seconds. Operators can match the cycle to different package materials and process requirements.

• Accurate Head Alignment: Automatic guiding of the upper and lower sealing heads keeps the sealing edge within 0.5 mm of the battery package edge, reducing positioning variation during repeated production or research cycles.

• Robust Sealing Actuation: The sealing assembly uses a 63 mm cylinder diameter and a 6 mm soft-sealing width, providing a stable contact arrangement for pouch battery sealing operations.

• Operator Setup Flexibility: Manual operation is available for equipment adjustment, while the movable baffle and filter screen help operators configure the work area and perform setup more efficiently.

• Serviceable Control Layout: The electrical control box is installed outside the glovebox, making inspection, adjustment, and maintenance more accessible without placing the control hardware inside the working chamber.

• Industrial Control Components: PLC control, an AIRTAC cylinder, an OMRON temperature controller, a time relay, and a Panasonic digital vacuum gauge provide a practical control architecture for laboratory and pilot-scale use.

Applications

Technical Specifications

Operating Sequence

In vacuum pre-sealing mode, the operator first turns the selector switch on the changeover panel to the pre-sealing position. The battery is placed on the fixture inside the chamber, and the start button is pressed. The upper chamber moves vertically downward and closes the vacuum chamber. The vacuum valve then opens to begin evacuation.

When the chamber reaches the set vacuum level, the vacuum valve closes automatically. After the programmed vacuum delay, the upper sealing head moves into position. The sealing head remains active for the selected sealing time and then returns to its original position. Once sealing is complete, the gas-fill valve opens automatically to restore chamber pressure. When the internal pressure returns to normal atmospheric pressure, the upper chamber rises and the operating cycle is complete.

In top-side sealing mode, the selector switch is moved to the top-side sealing position before operation. The battery is placed on the internal fixture and the start button is pressed. The upper sealing head moves into position, applies the programmed sealing time, and returns after the cycle is finished. This direct sequence is suitable when vacuum pre-sealing is not required for the specific process step.

The automatic sequence reduces the number of manual interventions required during each cycle. It also coordinates chamber closure, evacuation, vacuum delay, thermal sealing, pressure restoration, and chamber opening in the correct order. For development work, the manual function provides additional flexibility when adjusting the fixture, baffle, or sealing position.

Process Control and Mechanical Design

The equipment uses separate control elements for programmable logic, temperature regulation, timing, and vacuum monitoring. This arrangement gives operators access to the core parameters that directly influence sealing quality. Sealing time is adjustable over a 1 to 99 second range, and time accuracy is specified at ±0.1 seconds. Temperature control accuracy is specified at ±2°C, helping maintain a repeatable thermal process.

The 6 mm soft sealing width provides a defined sealing area for pouch battery packaging. The 63 mm cylinder diameter supports the sealing head actuation system. Automatic guiding of the upper and lower sealing heads helps maintain the sealing edge relative to the battery package, with the edge distance limited to no more than 0.5 mm according to the reference specifications.

The vacuum chamber design supports vacuum levels above -95 kPa. During the pre-sealing cycle, automatic valve operation controls evacuation and pressure recovery. After the sealing stage, the chamber is returned to normal atmospheric pressure before the upper chamber rises, creating a controlled sequence for loading, sealing, and unloading.

The external electrical control box is practical for glovebox integration and routine service. Keeping the control hardware outside the glovebox makes it easier to inspect the system, access controls, and perform maintenance. The movable baffle and filter screen provide additional adjustment options during commissioning and process setup.

Why Choose This Product

• Two Processes in One Platform: Vacuum pre-sealing and top-side sealing are available through a selectable operating design, reducing the need for separate equipment in pouch cell development workflows.

• Repeatable Process Parameters: Adjustable sealing time, controlled temperature, automatic vacuum handling, and accurate head guidance help improve consistency from cycle to cycle.

• Designed for Demanding Research Use: The system combines a high-vacuum chamber, robust pneumatic actuation, external controls, and manual adjustment functions for practical laboratory and pilot-scale operation.

• Maintenance-Conscious Configuration: The external electrical control box and accessible adjustment features support more efficient service and equipment setup, particularly when the working process is integrated with a glovebox.

• Suitable for Scale-Up Evaluation: The 350 mm × 350 mm × 12 mm battery package capacity supports larger pouch formats, process validation, and development work bridging laboratory research and pilot production.

Select this equipment when controlled vacuum removal, repeatable thermal sealing, and dependable pouch cell processing are essential. Contact KINTEK for a quotation or a configuration matched to your battery assembly and custom sealing requirements.

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