What is a manual sealer?

A manual sealer heats and seals packaging bags manually (using a press, rocker, or handle). It's primarily used for sealing flexible packaging materials such as plastic film, aluminum foil bags, and composite films. It's ideal for small-batch production, laboratories, homes, or temporary packaging needs.

1. Advantages and Features of the Manual Sealer

The manual sealer utilizes an intelligent temperature control system equipped with a microprocessor for precise temperature control. Real-time temperature display via a digital tube ensures a stable and reliable sealing process. It features an automatic over-temperature protection function to prevent overheating and damage to materials. It also automatically alarms for low-temperature conditions to indicate temperature abnormalities. Built-in overcurrent protection ensures safe operation.

• Efficient and Stable: Fast heating speed, stable performance, and secure sealing, suitable for a variety of film materials.

• Safe and Convenient: Its attractive appearance, simple operation, and ergonomic design ensure safer use.

• Smart Maintenance: With few moving parts and a simple structure, it offers low maintenance costs and a long service life.

• Precision Cutting: A built-in double-edged cutting blade delivers smooth and neat cuts, enhancing the aesthetics of packaging.

2. Precautions for operating manual sealing machines

Pre-Use Inspection

Power Supply and Circuitry: Confirm that the power supply voltage matches, the wires are undamaged, and the grounding is reliable.

Sealing Components: Check that the heating strips are clean and free of residue to avoid affecting the sealing effect.

Temperature Setting: Adjust the temperature appropriately based on the material thickness (refer to the manual). Avoid temperatures that are too high or too low.

Operating Instructions

Material Compatibility: Suitable only for heat-sealable films (such as PE and PP). Do not seal metal or thick, hard materials.

Place Flat: Ensure the bag opening is flat and wrinkle-free. Align the seal position before pressing.

Apply Evenly: Apply moderate pressure manually to avoid deformation of the heating strips due to forceful operation.

High Temperature Warning: The heating strips may still be warm after sealing. Do not touch them directly to prevent burns.

Safety Precautions

Abnormal Handling: If the device alarms (such as low temperature or overcurrent), stop use immediately and troubleshoot.

Keep Children Away: Keep children away from the device during operation to prevent accidental contact with hot components or the power supply.

Environmental Requirements: Keep the work area dry and well-ventilated, away from flammable materials.

3. Manual Sealer Maintenance and Storage Guide

Daily Maintenance

Cleaning and Maintenance

After each use, wipe the heating strip with a soft cloth lightly dampened with alcohol to remove any plastic residue or stains.

Regularly clean the machine's surface and keep the ventilation holes clear. Use a soft-bristled brush to remove debris from the blade area.

Inspection of Key Components

Check the heating strip weekly for flatness, oxidation, or damage.

Check the pressure mechanism for flexibility and add a small amount of lubricant if necessary.

Confirm that the power cord is intact and the plug is making good contact.

Performance Testing

Perform a no-load test monthly to observe the normal temperature rise rate.

Test the emergency stop function for effectiveness.

Check the digital display for clarity and accurate temperature readings.

Long-Term Storage

Preparation Before Storage

Thoroughly clean all parts of the machine.

Apply anti-rust oil to metal parts.

Loosen the pressure adjustment screw to release the spring pressure.

Storage Environment Requirements

Select a dry, well-ventilated indoor environment.

Recommended ambient temperature: 10-30°C (10-30°C).

Relative humidity: 70%.

Avoid direct sunlight and corrosive gases.

Storage Method

The machine should be placed flat on a stable surface.

Do not place heavy objects on top.

It is recommended to cover with a dust cover.