Aggregate production lines frequently employ centerless grinding machines for precision sizing of crusher wear parts and grinding media. Overheating issues directly impact production efficiency and component lifespan in sand/gravel plants.
Primary overheating triggers include:
– Improper coolant flow (<15L/min standard requirement)
– Excessive feed rates (>50mm/s for most aggregate applications)
– Worn regulating wheel (diameter below Ø400mm requires replacement)
Technical countermeasures:
1. Install high-pressure coolant systems (minimum 20 bar)
2. Optimize workpiece rotation speed (typically 80-120 RPM for crusher components)
3. Use CBN grinding wheels for hard materials (60-80 grit recommended)
| Model | Max Workpiece Dia. | Power | Coolant Capacity |
|---|---|---|---|
| CG-200A | Ø200mm | 15kW | 25L/min |
| CG-350M | Ø350mm | 22kW | 40L/min |
| CG-500X | Ø500mm | 37kW | 60L/min |
Q: How often should grinding wheels be dressed?
A: Every 8 operating hours when processing granite/quartz materials.
Q: Typical temperature threshold?
A: Maintain below 60°C at bearing locations.
A Malaysian aggregate producer reduced downtime by 68% after upgrading their CG-350M with:
– Automatic thermal compensation system
– Ceramic-reinforced grinding wheel
– Real-time vibration monitoring
Proper maintenance intervals and operator training remain critical for sustained performance in harsh mineral processing environments.
