Impeller Wheel Operating Principle
The impeller wheel is mounted on the shot blaster main shaft, rotating at high speed to evenly distribute shots to the control cage and blades. Its condition directly affects blasting performance.
Core Functions
- Distribute shots evenly from inlet to blades
- Control shot flow and distribution angle
- Work with control cage to form blasting fan pattern
Inspection Schedule
| Usage Intensity | Check Period | Check Content |
|---|---|---|
| High intensity | Every 1-2 weeks | Visual wear, balance status |
| Normal | Monthly | Distribution slot wear, fit clearance |
| Low intensity | Quarterly | Full inspection, preventive replacement |
Wear Assessment Standards
Visual Inspection
- Distribution slot edges worn round
- Slot depth wear exceeds 50%
- Surface cracks or damage
Operational Check
- Uneven shot distribution
-明显 reduced blasting volume - Abnormal vibration or noise
Measurement
- OD wear exceeds 5% of original
- Distribution slot width change
- Excessive clearance with control cage
Maintenance Methods
Cleaning
- Regularly clean residual shots in slots
- Check and remove debris and broken particles
- Keep impeller surface clean
Balance Check
- Use balancer to test dynamic balance
- Replace if imbalance exceeds allowable value
- Test new impeller balance before installation
Replacement Steps
Preparation
- Disconnect power, ensure complete stop
- Prepare new impeller and tools
- Check control cage and blade condition
Replacement Process
Remove old impeller
- Loosen fixing bolts
- Remove worn impeller
- Clean mounting area
Install new impeller
- Check new impeller balance
- Correct installation direction
- Tighten to specified torque
Test run
- Low-speed check operation
- Normal speed no-load run
- Observe shot distribution effect
Related Replacement
When replacing impeller, also check:
- Control cage: Used together, replace if worn
- Blades: Synchronized wear, recommend full set replacement
- Main shaft bearing: Check wear condition
Procurement Tip: We offer various impeller models for Q series, KT series and other mainstream blasters, high-chromium cast iron material with excellent wear resistance.
