Jun 26, 2026Services Overview
Troubleshooting Common Powder Feeder Issues
This guide introduces common powder feeder faults in laser cladding applications, along with their causes and quick troubleshooting tips.
Laser cladding heads must be used in conjunction with a powder feeder during operation. However, the powder feeder may experience malfunctions after prolonged use. So, how do we troubleshoot common powder feeder faults? Today, we will discuss the common issues of powder feeder equipment and their corresponding troubleshooting methods.Before performing any maintenance or troubleshooting on the powder feeder, always turn off the equipment to prevent accidental restart and wear appropriate protective gear.The most common problem with powder feeders is powder clogging, which is often caused by air leaks in the feeder. Therefore, it is necessary to regularly check the airtightness of the powder feeder. Common issues affecting airtightness include damaged sealing rings and damaged powder feed cylinders.
Fault | Cause | Solution |
|---|---|---|
Powder accumulation at the suction block | Reduced airtightness | Check and repair airtightness |
| Damaged or clogged powder delivery tube | Check if the powder delivery tube is clear or damaged; replace if necessary |
| Incorrect drive unit speed setting. If the speed is too high while the powder feed rate is too low, excess powder will accumulate. | Reset to an appropriate speed |
| Powder feed rate set too low | Increase the powder feed rate |
| Worn suction block or scraper block | Replace the suction block or scraper block |
| Moist powder | Dry the powder or replace with dry powder |
| Incorrect selection of suction block and scraper block | Replace with matching suction block and scraper block |
Uneven powder distribution on the carrier disk | Agitator motor not started | For powders with poor flowability, it is recommended to start the agitator motor |
| Incorrect powder feed rate setting | Adjust the powder feed rate according to the powder's flowability |
Abnormal powder output | Improper carrier gas pressure setting | Adjust the carrier gas pressure |
| Clogged powder outlet tube | Clear or replace the powder outlet tube |
| Clogged or worn suction block | Clean or replace the suction block |
