Multihead Weigher Daily Maintenance and Cleaning Guide for Longer Service Life

1. Why Maintenance Matters

As the core equipment in an automatic packaging system, a multihead weigher plays a crucial role in improving production efficiency and boosting economic benefits. Most are made of 304 stainless steel, which is durable and can last over 10 years. However, proper daily maintenance ensures weighing accuracy, prolongs service life, and maximizes return on investment.

2. Safety First

Before performing maintenance or testing:

• Cut off the power and unplug the power cord.

• Only professionally trained personnel should perform the operation.

3. Daily Cleaning Routine

To keep the multihead weigher in optimal condition:

1. Clean parts in direct contact with materials – such as the main vibration plate, line vibration plate, storage hopper, and weighing hopper – after daily use.

2. Remove dust under the machine regularly.

3. Clean inside the weighing hopper pendant, avoiding any impact, force, or manual rotation to prevent damage to the digital sensor.

4. Inspect vibration strength of the main and line vibration units.

5. Check flexibility of storage and weighing hoppers.

6. Test zero value and full-scale value of the digital sensor every 6–12 months.

7. Inspect and clean hooks on each weighing bucket before and after use.

8. Lubricate hopper joints weekly with edible oil.

9. Increase cleaning frequency in dusty environments to reduce wear.

10. Clean aluminum shell dust every two months.

11. Perform annual maintenance, ideally under a service agreement with the manufacturer.

4. Cleaning Methods by Model Type

Waterproof Models

• Access the manual test menu to enable the cleaning function.

• Rinse directly with water, following waterproof rating guidelines.

Non-Waterproof Models

• Disassemble parts for cleaning.

• Protect the mirror surfaces of components during cleaning and storage.

5. Additional Cleaning Tips

• Remove fingerprints and touch marks with neutral detergent or soap. For stubborn stains, use a sponge or cloth with organic solvents such as alcohol, gasoline, or acetone.

• Remove rust caused by cleaning agent residue with an appropriate cleaning solution.

• Clean rust from iron powder or salt exposure using a sponge or cloth with neutral detergent or soapy water, then wipe dry.

6. Conclusion

By following these multihead weigher maintenance and cleaning guidelines, you can ensure optimal performance, reduce mechanical wear, and extend the machine’s lifespan. Kenwei’s durable, easy-to-clean models make upkeep simple, helping businesses maintain consistent weighing accuracy and efficiency.