Product Overview
The LUM Series Ultrafine Vertical Roller Mill is a premier grinding solution developed by SBM (Shanghai Shibang), designed specifically for the high-end production of ultrafine industrial powders. It represents an advanced integration of ultrafine grinding, classification, and conveying into a single, highly efficient unit. By incorporating Taiwanese roller technology and German powder selection expertise, the LUM series sets a new benchmark for fineness and stability in the non-metallic mineral processing industry.
Technical Advantages
Exceptional Product Purity: The system allows for precise control over particle size distribution and chemical composition. Its design minimizes iron contamination, ensuring high whiteness and purity for finished materials like calcite and marble.
High Energy Efficiency: Through precision control of grinding pressure and rotational speed, the LUM series achieves 30%–50% lower energy consumption compared to traditional grinding mills.
Simplified Maintenance & Durability: The mill features a reversible structure and a hydraulic adjustment system, allowing for quick inspection and convenient replacement of wear parts (rollers and rings).
Environmentally Friendly Operation: The entire system operates under sealed negative pressure, which prevents dust spillover. It is further characterized by low vibration and noise levels, meeting strict industrial environmental standards.
Applications
The LUM Series Ultrafine Vertical Roller Mill is widely used in industries such as:
Paint and coatings
Papermaking
Pigments
Rubber
Plastics
Fillers
Cosmetics
Chemical products
“Over 100 types of minerals and industrial raw materials, such as:”
Calcium carbonate, Kaolin, Bentonite, Talc, Mica, Attapulgite, Barite, Gypsum, Graphite, and others.
Working Principle
The LUM series operates through a highly automated six-step process:
1. Feeding: Material is uniformly delivered to the center of the grinding plate via a screw feeder.
2. Grinding: Centrifugal force moves the material toward the edge of the plate. As it passes under the rollers, it is crushed and pulverized through inter-particle grinding.
3. Classification: Grinded material is lifted by a strong upward airflow into the high-efficiency classifier.
4. Collection: Particles meeting the required fineness pass through the classifier and enter the pulse dust collector to be gathered as the final product.
5. Recycling: Oversized particles are intercepted by the classifier and returned to the grinding plate for further processing.
6. Impurity Discharge: Heavy impurities (such as iron or dense stones) that cannot be lifted by the air fall into the lower chamber and are removed via the scrapers.
Technical Specifications
Model | LUM1525 | LUM1632 | LUM1836 | ||||||||||||||||||
Main machine power(kW) | 220～250 | 280～315 | 355～400 | ||||||||||||||||||
| Power concentrator power(Kw) | 1×75/6×15 | 1×110/6X22/8×15 | 1×132/8×22 | ||||||||||||||||||
| Fan power(Kw) | 160~200 | 220~250 | 315~355 | ||||||||||||||||||
| Capacity(t/h) | 10.5~11.5 | 8~9 | 6~7 | 4~4.5 | 3~3.5 | 2.2~2.5 | 1.6~2.0 | 12.5~13.5 | 11.5~12.5 | 8.5~9.5 | 5.5~6.5 | 4~5 | 2.8~3.2 | 2~2.5 | 14~15 | 12~13 | 11~12 | 7.5~8.5 | 5.5~6.5 | 3.2~3.6 | 2.3~2.8 |
| 325 mesh residue on sieve(%) | 0.015 | 0.015 | 0.01 | 0 | 0 | 0 | 0 | 0.015 | 0.015 | 0.01 | 0 | 0 | 0 | 0 | 0.015 | 0.015 | 0.01 | 0 | 0 | 0 | 0 |
| Content>2μm(%) | 33±2 | 38±2 | 43±2 | 48±2 | 53±2 | 60±2 | 70±2 | 33±2 | 38±2 | 43±2 | 48±2 | 53±2 | 60±2 | 70±2 | 33±2 | 38±2 | 43±2 | 48±2 | 53±2 | 60±2 | 70±2 |
| Average particke size D50(μm) | 4.2±0.5 | 3.0±0.4 | 2.6±0.2 | 1.8±0.2 | 1.6±0.6 | 1.4±0.6 | 1.2±0.2 | 4.2±0.5 | 3.0±0.4 | 2.6±0.2 | 1.8±0.2 | 1.6±0.6 | 1.4±0.6 | 1.2±0.2 | 4.2±0.5 | 3.0±0.4 | 2.6±0.2 | 1.8±0.2 | 1.6±0.6 | 1.4±0.6 | 1.2±0.2 |
| Size distribution D97(μm) | 30±2.0 | 15±1.5 | 15±1.0 | 10±1.0 | 8±0.5 | 6.5±0.5 | 5±0.5 | 30±2.0 | 15±1.5 | 15±1.0 | 10±1.0 | 8±0.5 | 6.5±0.5 | 5±0.5 | 30±2.0 | 15±1.5 | 15±1.0 | 10±1.0 | 8±0.5 | 6.5±0.5 | 5±0.5 |
| Compact apparent specific gravity(g/cm^3) | 1.18 | 1.06 | 0.90 | 0.85 | 0.76 | 0.65 | 0.55 | 1.18 | 1.06 | 0.90 | 0.85 | 0.76 | 0.65 | 0.55 | 1.18 | 1.06 | 0.90 | 0.85 | 0.76 | 0.65 | 0.55 |
| Loose apparent specific gravity(g/cm^3) | 0.45 | 0.40 | 0.34 | 0.32 | 0.28 | 0.25 | 0.2 | 0.45 | 0.40 | 0.34 | 0.32 | 0.28 | 0.25 | 0.2 | 0.45 | 0.40 | 0.34 | 0.32 | 0.28 | 0.25 | 0.2 |
| Moisture content(%) | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 | Below 0.3 |