Jiujie Machine
1 / 5
LM vertical roller mill is an energy-saving mill equipment that combines mature vertical grinding technology, successful foreign experience and technological innovation and upgrading. It integrates crushing, drying, grinding, grading, and conveying, and can be widely used in cement, electric power, metallurgy, chemical, non-metallic ores and other industries, and focuses on three major fields of non-metallic ores, pulverized coal and slag.
Vertical grinding mills are widely used in grinding non-flammable and non-explosive materials under 9.3 (Mohs hardness).
Quartz, feldspar, calcite, talc, barite, fluorite, iron ore, copper ore, slag, cement clinker, zircon sand, fly ash, carborundum, coal, etc.
The mill integrates crushing, drying, grinding, and classifying into one system. The overall structure is simplified, and its footprint is only about 50% of a traditional ball mill system. Outdoor installation options further lower overall costs.
High Efficiency: Roller-compacted grinding delivers high efficiency with low power consumption, saving 30% to 40% energy compared to ball mills.
Minimal Wear: The roller does not directly contact the disc, and high-quality materials extend the lifespan of rollers and liners.
Short material retention time in the mill makes it easy to monitor and control particle size and chemical composition, avoiding duplicate milling and ensuring consistent quality.
Operates with minimal vibration, low noise, and fully sealed housing. The negative pressure system ensures dust-free operation, meeting standard environmental requirements.
The motor drives the grinding table through a speed reducer while hot air enters the mill from the inlet. Materials feed directly onto the center of the grinding table.
Centrifugal force causes the materials to move from the center outward toward the edge of the grinding table.
As materials pass through the groove on the table, they are crushed by the grinding roller. The crushed materials continue moving to the edge until they are carried upward by the internal airstream. Fine powder is collected by the system's dust catcher as the final product.
Contact with the hot airstream dries the materials to target moisture levels. Adjusting the separator speed and internal wind direction angle controls the final fineness.
| Model | LM1300 | LM1500 | LM1700 | LM1900 | LM2200 | LM2400 | LM2800 |
|---|---|---|---|---|---|---|---|
| Capacity (t/h) | 10-40 | 13-50 | 18-70 | 23-85 | 36-135 | 41-164 | 50-196 |
| Output Fineness (Mesh) | 80-425 | 80-425 | 80-425 | 80-425 | 80-425 | 80-425 | 80-425 |
| Product Moisture | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% | ≤1% |
| Max. Input Size (mm) | <38 | <40 | <42 | <45 | <50 | <55 | <58 |
| Best Input Moisture | <4% | <4% | <4% | <4% | <4% | <4% | <4% |
| Input Moisture (drying required) | <15% | <15% | <15% | <15% | <15% | <15% | <15% |
| Inlet Air Temp (°C) | <350 | <350 | <350 | <350 | <350 | <350 | <350 |
| Outlet Air Temp (°C) | 70-95 | 70-95 | 70-95 | 70-95 | 70-95 | 70-95 | 70-95 |
| Main Grinder Power (kW) | 200 | 280 | 400 | 500 | 800 | 900 | 1120 |
With over 20 years of experience in manufacturing grinding mills, our equipment has been successfully deployed across more than 30 countries in cement, metallurgy, chemical industry, mining, and construction waste processing. We provide full-scale EPC general contracting and customized solutions.
Our modern industrial factory covers an area of 120,000 square meters. The manufactured mining machinery meets international standard certifications, including ISO:9001, GOST, and CE. We are committed to supplying heavy grinding and crushing machinery to users worldwide.
All machinery is packed in compliance with international standard protective measures. Suitable for long-distance land and sea transit, our techniques include moisture-proofing, rustproofing, and shockproofing to ensure safe delivery.
100% brand new when leaving the factory. The seller guarantees the quality of the machinery (excluding wearing parts) for a period of one year from the date of trial run completion under our technicians' guidance, not exceeding 15 months from the date the machinery leaves the factory.
(1) Device model selection assistance.
(2) Designing and manufacturing customized products tailored to special needs.
(3) Technical personnel training for clients.
(4) Complimentary on-site layout planning and engineering support to determine optimal system configuration.
We deploy on-site technicians to guide equipment installation, commission the systems, and conduct comprehensive operator training.
Sales Tracking: Help with product acceptance checks and developing project construction programs.
After-Sale Services: Guide site preparation, operator training, and offer 1-2 technicians staying on-site for 1 month to assist production initialization until satisfaction.
It is widely used to grind non-flammable and non-explosive materials under 9.3 Mohs hardness, including quartz, feldspar, calcite, talc, barite, fluorite, iron ore, copper ore, slag, cement clinker, zircon sand, fly ash, coal, and more.
The vertical roller mill integrates crushing, drying, grinding, and classifying into a single system, occupying 50% less physical area. It is highly efficient and saves between 30% to 40% in energy consumption compared to traditional ball mills.
Hot air is introduced directly through the air inlet of the mill. As the material makes contact with the hot airstream during grinding, it dries to meet the client's specified target moisture (reducing moisture to ≤1% when required).
We offer a 1-year quality guarantee from the completion date of the initial trial run under our technicians' guidance, not exceeding 15 months from the date the machine departs the factory. This warranty excludes standard wearing parts.
Yes. We dispatch professional technical staff to guide equipment installation, manage system commissioning, train local operators, and support early production stages to ensure seamless operation.
Large components (like pipes and the main mill body) are wrapped in heavy protective plastic film. Small parts (such as bolts, springs, and sleeves) are packed inside robust, sealed wooden boxes to keep out moisture, dampness, and rust.
