A mid-sized mineral processing company supplying dolomite powder to PVC manufacturers faced growing pressure from customers. PVC profiles and pipes require a consistent filler material to ensure smooth dispersion, impact resistance, and surface finish. The client’s existing equipment could only produce 325-mesh powder with wide particle size variation, leading to a 3.5% rejection rate from their PVC clients.
The client evaluated several grinding technologies. Ball mills were ruled out due to high energy costs. Raymond mills could not achieve the required 600-mesh fineness consistently. Jet mills offered the fineness but at prohibitive operational costs for their target capacity.
The Epic Powder Solution
After testing and technical consultation, the client selected the Epic Powder Ring Roller Mill. This mill is specifically designed for ultra-fine processing of non-metallic minerals such as dolomite, calcite, and marble.
Key advantages of the Series include:
High-precision sınıflandırıcı ensuring sharp particle size distribution at 600 mesh D97
High throughput capable of 5 tons per hour for 600-mesh dolomite
Durable wear parts with high-chromium alloy rollers and rings for extended service life
Results
After installation and commissioning, the client achieved:
| Metric | Before | After |
|---|---|---|
| Fineness | 325 mesh (inconsistent) | 600 mesh D97 |
| Throughput | 2.5 t/h | 5 t/h |
| Energy consumption | 120 kWh/t | 75 kWh/t |
| PVC client rejection rate | 3.5% | <0.5% |
For dolomite processors serving the PVC industry, the Epic Powder Ring Roller Mill delivers reliable ultra-fine grinding, higher throughput, and lower operating costs—helping clients turn quality into a competitive advantage.
Technical Parameters:
Material: Dolomite
Particle Size: 25μm
Output: 5t/h
