Superfine vertical roller mill
A vertical roller mill built for superfine dry powder. Material is ground between the rotating table and rollers, dried by the in-mill airflow and classified in a single pass — well suited to non-metallic minerals that need a steady high-fineness output.
What it does and where it fits
The superfine vertical roller mill combines crushing, grinding, drying and classifying in one machine. A bed of material is ground between the table and rollers, then carried up by the airflow to a high-efficiency classifier; on-spec fines pass through while coarse particles fall back for regrinding. Fewer machines on the floor, low vibration and even wear make it a dependable choice for steady superfine production.
- Grinding, drying and classifying combined in one vertical unit — fewer machines on the floor.
- High single-pass fineness for the superfine dry powder of non-metallic ores.
- Stable bed grinding with low vibration and even wear on the grinding parts.
- Sealed negative-pressure loop keeps dust and spillage down on the workshop floor.
The mill is mainly composed of a motor, reducer, grinding roller device, grinding disc device, pressurizing device, multi-head powder separator, machine body and oil station. The main motor drives the grinding disc through the reducer; material falls onto the disc centre and is ground between rollers and disc, then carried up by airflow to the multi-head separator for classifying.
What sets it apart — point by point
Professional ultra-fine vertical mill
Built on proven ultra-fine vertical mill technology, integrating superfine grinding, classifying and conveying in one large-scale unit — a real breakthrough in ultrafine powder processing capacity.
Environmentally friendly
The entire system runs under negative pressure with no dust overflow, enabling dust-free workshop operation.
High separation efficiency
The multi-wheel air-flow classifier gives precise particle size control and high efficiency across a wide finished-size range. D97 is adjustable from 4 to 45 µm, giving a high specific surface area — up to ≈ 21 000 cm²/g (Blaine).
High quality of finished powder
Very low iron content in the finished powder; high whiteness when grinding white materials. Narrow one-pass particle size distribution, with the 2 µm fine fraction adjustable and controllable, and good single-particle shape.
Low noise and less abrasion
Mechanical and electronic limit devices prevent direct contact between roller and disc liner, avoiding destructive impact and severe vibration. Rollers do not touch the disc directly and use high-quality wear-resistant materials, so wear is low and service life long.
Specially designed grinding curve
The roller sleeve and liner grinding curve is purpose-designed for the ultrafine grinding principle. It forms a material layer more easily than ordinary vertical mills and grinds to the target fineness in a single pass, greatly raising grinding efficiency.
Intelligent automatic control
PLC/DCS automatic control of grinding roller pressure gives precise pressure control without manual operation. Grinding aid can be added under automatic computer control, with remote control and simple operation.
Typical configurations — sized to your capacity
| Model | Main power (kW) | Blower power (kW) | Separator (kW×qty) | Input size D90 (mm) | Rollers (pcs) | Cap. @D30 2µm (t/h) | Cap. @D45 2µm (t/h) | Cap. @D60 2µm (t/h) |
|---|---|---|---|---|---|---|---|---|
| SX-V15 | 220–280 | 180–200 | 15×6 | <10, max 15 | 3 | 9–12 | 5.5–7.5 | 3–4 |
| SX-V16 | 315–400 | 250–280 | 22×6 | <10, max 15 | 3 | 12–16 | 7–9 | — |
| SX-V17 | 355–450 | 325–355 | 22×8 | <10, max 15 | 3 | 14–18 | 10–12 | — |
Input moisture < 3%. Capacity is shown at three 2 µm cut points (D30 / D45 / D60) and is based on grinding calcite (Mohs ≤ 5); final selection is subject to engineer assessment.
Material in, finished powder out — the running flow
Feeding & grinding
Material falls onto the centre of the rotating grinding disc; rollers crush bulk feed directly and form a material bed for inter-granular crushing of fine grains.
Airflow lifting
Ground material moves to the disc edge and is carried up by the strong airflow at the wind ring; heavier particles fall back to the disc for regrinding.
Multi-head classifying
The airflow passes through the upper multi-head separator; coarse particles return to the grinding table while qualified fine powder flows on with the airflow.
Collection
Qualified fine powder is collected by the system powder collector as the finished product; iron and heavy debris fall to the lower chamber and are scraped to the slag discharge port.
A closer look
Images are representative — on-site photography of your configuration is pending.
Suited to a range of brittle minerals
Material list is a demonstration placeholder. Hardness, moisture and target fineness are subject to engineer assessment.
Send your material and target fineness — we'll match the right mill.
Engineers review every enquiry line by line and return an initial model pick and whole-line proposal within one working day.