The Grate Type Ball Mill manufactured by Zhengzhou Zhenggang Machinery Co., Ltd. is a key grinding machine used in mineral processing, building materials, metallurgy, cement, chemical, coal, slag, and refractory material industries. It is mainly used for primary grinding and for grinding materials into fine powder. Compared with overflow type ball mills, the grate discharge structure allows faster material discharge reduces, pulp accumulation, minimizes over-grinding, and improves grinding efficiency. The mill is suitable for both wet and dry grinding operations and is widely used in ore beneficiation plants for iron, copper, gold, silver, lead, zinc, and other minerals.
The grate discharge structure allows faster material discharge and improves output efficiency compared with overflow type ball mills.
The discharge grate plate helps finished materials exit quickly, reducing unnecessary fine grinding and improving product control.
The mill can be used for both wet grinding and dry grinding according to material type and production requirements
The cylinder is made of thick rolled steel plates and lined with wear-resistant steel or rubber liners for long service life.
The transmission system runs smoothly with low vibration and noise, supporting continuous industrial grinding performance.
Liner plates, grate plates, and grid segments are designed for convenient replacement and reduced maintenance downtime.
Used for grinding iron ore, copper ore, gold ore, silver ore, lead-zinc ore, and other minerals in beneficiation production lines.
Suitable for grinding cement raw materials, construction materials, and industrial mineral powders.
Applied in chemical and refractory industries for grinding materials into required powder fineness.
Used for grinding coal, slag, and similar industrial materials in large-scale production systems.
Especially suitable for coarse and intermediate grinding stages where large discharge capacity and efficient material flow are required
Used as primary grinding equipment in gold ore, copper ore, iron ore, lead-zinc ore, and mineral beneficiation plants where fast discharge and high grinding efficiency are required.
| Product Name | Grate Type Ball Mill |
| Equipment Type | Grate discharge ball mill |
| Category | Grinding Equipment |
| Capacity Range | 0.65–130 t/h |
| Motor Power | 18.5–800 kW |
| Feed Size | ≤25 mm |
| Discharge Size | 0.074–0.3 mm |
| Grinding Type | Wet grinding / Dry grinding |
| Discharge Type | Grate discharge |
| Main Components | Feeding part, discharging part, rotating cylinder, transmission system, main bearing, liner plates, grinding media |
| Applicable Materials | Iron ore, copper ore, gold ore, silver ore, lead-zinc ore, cement materials, coal, slag, refractory materials, chemical materials |
| Application Industries | Mineral processing, cement, building materials, metallurgy, chemical industry, refractory materials, coal and slag grinding |
| Model | Cylinder Diameter (mm) | Cylinder Length (mm) | Feed Size (mm) | Discharge Size (mm) | Capacity (t/h) | Motor Power (kW) | Total Weight (t) |
|---|---|---|---|---|---|---|---|
| MQG900×1800 | 900 | 1800 | ≤25 | 0.074–0.3 | 0.65–2 | 18.5 | 5.9 |
| MQG1200×2400 | 1200 | 2400 | ≤25 | 0.074–0.3 | 1.5–4.8 | 30 | 13.5 |
| MQG1500×3000 | 1500 | 3000 | ≤25 | 0.074–0.3 | 2–6 | 45 | 17.8 |
| MQG1830×3600 | 1830 | 3600 | ≤25 | 0.074–0.3 | 4–10 | 75 | 28.4 |
| MQG1830×4500 | 1830 | 4500 | ≤25 | 0.074–0.3 | 7.5–17 | 110 | 31.5 |
| MQG2100×3600 | 2100 | 3600 | ≤25 | 0.074–0.3 | 8–25 | 155 | 42.8 |
| MQG2100×4500 | 2100 | 4500 | ≤25 | 0.074–0.3 | 11–30 | 185 | 48.2 |
| MQG2100×7000 | 2100 | 7000 | ≤25 | 0.074–0.3 | 16–45 | 245 | 57.4 |
| MQG2400×3600 | 2400 | 3600 | ≤25 | 0.074–0.3 | 15–60 | 280 | 73.1 |
| MQG2400×4500 | 2400 | 4500 | ≤25 | 0.074–0.3 | 18–65 | 320 | 78.5 |
| MQG2700×3600 | 2700 | 3600 | ≤25 | 0.074–0.3 | 20–85 | 355 | 93.2 |
| MQG2700×4500 | 2700 | 4500 | ≤25 | 0.074–0.3 | 25–95 | 400 | 101.6 |
| MQG3200×4500 | 3200 | 4500 | ≤25 | 0.074–0.3 | 36–115 | 630 | 126.8 |
| MQG3600×4500 | 3200 | 4500 | ≤25 | 0.074–0.3 | 45–130 | 800 | 148.2 |
Get detailed flow diagrams, equipment specifications, and design guidelines
The Grate Type Ball Mill is used for grinding ores, minerals, cement materials, coal, slag, refractory materials, and chemical materials into fine powder in wet or dry grinding operations.
Gold Ore Grinding Plant • South Africa
The Grate Type Ball Mill provides stable grinding performance in our gold ore processing line. The faster discharge structure helps reduce over-grinding, and the machine delivers reliable capacity with uniform particle size and easy maintenance.
Genuine OEM wear parts and consumables designed specifically for Zhenggang equipment — ensuring maximum uptime and consistent performance.
We supply genuine OEM spare parts for all Zhenggang equipment models. Contact our parts team for custom specifications, bulk pricing, and fast delivery worldwide.
