July 26, 2025
Operating a small grinding mill efficiently requires understanding its components, workflow, and maintenance protocols. This guide provides comprehensive training for operators of small-scale grinding mills, with special recommendations for high-performance equipment from our product line.
Section 1: Pre-Operation Checklist
1.1 Equipment Inspection
- Verify all fasteners are tightened
- Check lubrication levels in gearboxes and bearings
- Inspect grinding elements (rollers/balls/hammers) for wear
| Component |
Inspection Standard |
Acceptance Criteria |
| Grinding Rollers |
Surface wear measurement |
<5mm depth variation |
| Drive Belts |
Tension test |
10-15mm deflection |
1.2 Material Preparation
For optimal performance with our SCM Ultrafine Mill (325-2500 mesh output):
- Ensure feed size ≤20mm
- Pre-dry materials to <5% moisture content
- Remove metal contaminants with magnetic separators
Section 2: Startup Sequence
2.1 Cold Start Procedure
- Engage auxiliary systems (dust collector, classifier)
- Start main motor at 30% rated speed for 5 minutes
- Gradually increase to operating speed
2.2 Feeding Technique
When using the MTW Series Trapezium Mill:
- Maintain consistent feed rate (3-45t/h depending on model)
- Distribute material evenly across grinding chamber
- Monitor amperage to avoid overloading
Section 3: Operational Monitoring
| Parameter |
Normal Range |
Corrective Action |
| Bearing Temperature |
65-75°C |
Check lubrication if >85°C |
| Vibration Level |
<4mm/s |
Balance rotor if >6mm/s |
Section 4: Recommended Equipment
For small-scale operations requiring precision grinding:
SCM Ultrafine Mill (45-5μm)
- Key Advantage: Energy savings up to 30% vs conventional mills
- Ideal For: High-value materials requiring sub-10μm fineness
- Model SCM800: Compact footprint with 0.5-4.5t/h capacity
MTW Series Trapezium Mill
- Key Advantage: 98% transmission efficiency with cone gear drive
- Ideal For: Medium-scale production of 30-325 mesh powders
- Model MTW110: 3-9t/h capacity with 55kW motor
Section 5: Shutdown & Maintenance
5.1 Proper Shutdown Sequence
- Stop feed system first
- Run empty for 3 minutes to clear chamber
- Shut down main motor
- Turn off auxiliary systems after 5-minute cooldown
5.2 Daily Maintenance Tasks
- Lubricate all moving parts
- Check classifier blades for wear
- Inspect pulse-jet dust collector filters
Proper operation of small grinding mills significantly impacts productivity and product quality. Our SCM Ultrafine Mill and MTW Series offer advanced solutions combining energy efficiency with precise particle control. Always refer to the specific operation manual for your equipment model and contact our technical support team for customized guidance.
