A Double Roller Crusher (2DG Series) is a specialized fine and medium crushing equipment that utilizes two counter-rotating steel rollers as its core working components. By applying high squeezing, shearing, and grinding forces as raw materials pass through the adjustable gap between the rollers, it efficiently reduces materials into specified, uniform particle sizes.
Description
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A Double Roller Crusher (2DG Series) is a specialized fine and medium crushing equipment that utilizes two counter-rotating steel rollers as its core working components. By applying high squeezing, shearing, and grinding forces as raw materials pass through the adjustable gap between the rollers, it efficiently reduces materials into specified, uniform particle sizes.


2. How does Double Roller Crusher work?
Raw materials (feed size ≤25 mm to ≤40 mm) are fed evenly into the top crushing chamber. Driven by powerful electric motors (11 kW to 75 kW), the two heavy-duty rollers rotate toward each other at controlled speeds.
As material drops into the gap between the rollers, immense pressure and friction crush the particles. The discharge clearance between the rollers can be precisely calibrated to produce final product sizes ranging from 1–8 mm up to 3–40 mm, delivering continuous hourly throughputs from 5 t/h up to 80 t/h.
3. Advantages of Double Roller Crusher
- Uniform Particle Size & Low Over-Crushing: Squeezing action minimizes fine dust and ensures strict control over output size (1–40 mm adjustable).
- High Production Efficiency: Large models achieve throughput capacities of up to 40–80 t/h with smooth, continuous material discharge.
- Wear-Resistant & Long Lifespan: Rollers are forged from high-strength alloy materials with high hardness and abrasion resistance, reducing maintenance downtime.
- Flexible Power Configurations: Model range from 2DG-400*250 to 2DG-700-1000 covers power options from 11 kW to 75 kW for versatile operational needs.

4. Application of Double Roller Crusher
- Organic & Compound Fertilizer Plants: Fine crushing of clods, raw minerals, urea, and composted materials before granulation.
- Mining & Metallurgy: Crushing medium-hard ores, coal, coke, and limestone.
- Building Materials & Ceramics: Processing clay, shale, gangue, and raw ceramic materials.
- Power & Chemical Industries: Secondary crushing of coal powder, chemical salts, and industrial waste.
5. Specifications of Double Roller Crusher (2DG Series)
| Model | Feed Material Size (mm) | Finished Product Size (mm) | Capacity (t/h) | Power (kW) | Notes |
|---|---|---|---|---|---|
| 2DG-400*250 | ≤ 25 | 1–8 | 5–10 | 11 | Compact fine crushing model for small-scale production lines. |
| 2DG-400*500 | ≤ 30 | 1–15 | 10–20 | 22 | Standard roller crusher for organic fertilizer raw material preparation. |
| 2DG-610-400 | ≤ 40 | 1–20 | 13–35 | 30 | Medium-duty double roller crusher with wide adjustable gap. |
| 2DG-750*500 | ≤ 40 | 2–20 | 15–40 | 37 | High-efficiency fine grinding unit for fertilizer & mineral processing. |
| 2DG-700-1000 | ≤ 40 | 3–40 | 40–80 | 75 | Heavy-duty large capacity model for 80 t/h industrial plants. |
Tai'an Hongxin Environmental Equipment
Reliable Manufacturer of High-Quality Fertilizer Production & Waste Treatment Lines.
Tai'an Hongxin Environmental Equipment:
Supply of High-Quality and Efficient Fertilizer Production Equipment, Straw Processing Equipment, Waste Treatment Equipment and Mining Equipment. If you are looking for fertilizer production equipment and production lines, feel free to contact us at any time.- Whatsapp(Tel): + 86 139-0548-5429( Mr. Li)
- E-mail: tahongxin@gmail.com
