Industry
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Permanent Magnet Direct Drive (PMDD) Motor Used in Other Industry
Case Study
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JXS-200/660 Permanent Magnet Direct-Drive Synchronous Motor in Laos Potash Mining Application: Pre-screening Slurry Mixing Tank (660V, 220KW, 64rpm) |
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Project Background
The motor was deployed at a potash mine in Laos' Khammouane Province, where solid carnallite ore processing requires high-torque mixing equipment. The JXS-200/660 replaces traditional induction motor+gearbox systems in slurry agitation.
Technical Advantages
• Energy Efficiency
Achieves 98% motor efficiency (vs. 85-90% in induction motors), reducing power consumption by ≥15% for 24/7 operations.
Power factor >0.95 eliminates reactive power penalties.
• Direct-Drive Performance
64rpm low-speed high-torque output eliminates gearbox maintenance (critical in humid tropical conditions).
Precise speed control (±0.2%) ensures stable slurry density for flotation processes.
• Reliability
IP66 protection withstands saline/high-humidity environments.
No brushes/pulleys reduce failure points (proven 7,000+ hours MTBF in similar mining apps).
• Debugging Highlights
Load testing: Verified 220KW continuous output with 3.5x rated torque during slurry viscosity spikes.
Harmonic mitigation: Installed12-pulse transformers to address 660V grid harmonics from VFDs.
Thermal management: Custom cooling fins maintain winding temps <85°C in 40°C ambient.
Results
• 17% lower kWh/ton slurry vs. Conventional system.
• Zero unplanned downtime in first 6 months
Onsite video
Related Industries
Tel: +86-400-686-9980
Address: No. 108, Changtang Road, Wujin District, Changzhou, Jiangsu, China