Nozzle wear from abrasive composites appears as diameter growth, unstable flow, wider lines and loss of small detail. Inspect the nozzle with measurements and production evidence, not only by colour or visual marks.
Confirm the symptom
- Flow changes over time.
- Hole and slot sizes drift.
- Surface becomes rough.
- Small text loses definition.
Measure the nozzle
Use a pin gauge, optical measurement or controlled extrusion check. Compare a reference print before and after replacing the nozzle.
Control the cause
- Wear-resistant nozzle.
- Validated flow.
- Cumulative use log.
- Material-specific replacement interval.
| Signal | Likely cause | Action |
|---|---|---|
| Growing hole | Nozzle wear | Replace |
| Wavy wall | Flow variation | Inspect/calibrate |
| Rough surface | Worn orifice | Measure |
| Lost detail | Diameter growth | Production check |
Common engineering mistakes
- Using brass with abrasive material.
- Judging wear visually.
- Replacing without calibration.
- Mixing materials in one log.
- Ignoring dimensional drift.
Buyer checklist
- Is the material abrasive?
- Is the nozzle suitable?
- Is output measured?
- Is replacement recorded?
- Was flow recalibrated?
Send material and nozzle details through our quote form.