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The Nigerian construction and agricultural sectors have witnessed surging demand for high-quality dolomite powder, particularly for cement production and soil conditioning. Shanghai CLIRIK Machinery Co., Ltd.'s recent successful installation of the HGM80 ultra-fine grinding mill at a Nigerian client's facility demonstrates how advanced Chinese milling technology can address Africa's mineral processing challenges. This case study examines the project's technical specifications, implementation process, and operational outcomes.
Grinding Fineness: 5-47μm (325-2500 mesh adjustable)
Capacity: 0.4-4.5 t/h (dolomite-specific output)
Power Consumption: 30% lower than comparable models
Noise Level: ≤80dB (meeting EU workplace standards)
Multi-layer Grinding Ring Design: Enhances particle size distribution consistency
Pulse Dust Collector: Achieves 99.9% collection efficiency
PLC Control System: Enables remote monitoring via mobile devices
Wear-resistant Components: 8000+ hour lifespan for grinding rollers
The Nigerian client's facility required:
15m × 8m reinforced concrete foundation
380V/50Hz power supply configuration
Dedicated dust extraction ductwork
| Phase | Duration | Key Activities |
| Foundation Inspection | 2 days | Load-bearing verification |
| Mechanical Assembly | 5 days | Mainframe/classifier installation |
| Electrical Integration | 3 days | Motor/pneumatic system setup |
| Test Run | 2 days | No-load/load performance tests |
CLIRIK technicians completed commissioning within 12 working days, 30% faster than industry average for similar equipment.
Raw Material: Nigerian dolomite
Mohs Hardness: 3.5-4
Feed Size: ≤20mm
Moisture Content: <6%
| Parameter | Target | Achieved | |
| D90 Particle Size | 40μm | 40μm | |
| Output (325 mesh) | 3.2 t/h | 3.5 t/h | |
| Energy Consumption | 30 kWh/t | 27.4 kWh/t |
The mill's classifier adjustment mechanism allowed quick switching between multiple product grades (325/600/1250/2500 mesh).
Increased Revenue: $420,000 (from premium-grade dolomite)
Energy Savings: $38,000 (vs traditional mills)
Maintenance Reduction: $12,000 (fewer wear part replacements)
With total project investment of $285,000 (equipment+installation), the payback period is estimated at 8.7 months based on current production levels.
This successful deployment positions HGM80 as an ideal solution for West Africa's growing dolomite processing needs, particularly for:
Cement additives production
Agricultural lime manufacturing
Glass batch preparation
Rubber filler material processing
CLIRIK's Africa regional manager noted: "The HGM80's adaptability to high-humidity environments and unstable power grids makes it particularly suitable for Nigerian operating conditions."
