Product Overview
The Roll Crusher (also known as Dual-Roll Crusher) is a robust crushing solution designed for mineral processing, sand production, cement manufacturing, and industrial material reduction. Capable of processing materials with compressive strength ≤70 MPa (e.g., coal, coke, refractory materials), it delivers adjustable output granularity between 2-8mm through precision gap control. Key components include:
- Dual counter-rotating rollers
- Adjustable wedge/gap system
- Safety overload springs
- Heavy-duty base frame
Technical Advantages
1. Simplified Maintenance
- Modular design with accessible components: fixed roller, movable roller, drive shaft, gear covers.
- Power transmission via V-belt → intermediate reduction gears → synchronized roller rotation.
2. Low-Noise & Reliable Operation
- Engineered for ≤75 dB(A) noise emission, compliant with ISO 3744 standards.
- Interlocked gear mechanism ensures stable material compression.
3. High-Efficiency Processing
- Cubic-shaped output with <5% needle/flake content.
- Throughput capacity: 5-200 t/h (material-dependent).
4. Wear-Resistant Components
- Roller surfaces use HB 500-600 hardness alloy for extended service life.
- 30% longer wear cycle vs conventional models.
Working Principle
Material Crushing Cycle
- Feed Intake: Materials enter through the top hopper.
- Roller Compression: Counter-rotating rollers (Ø400-1500mm) apply shear/compression forces.
- Size Control: Adjustable gap determines final particle size.
- Discharge: Crushed material exits through the bottom chute.
Gap Adjustment Systems
| Type | Operation | Granularity Control |
|---|---|---|
| Wedge | – Turn adjustment bolt ↑: Increase gap (output ↑) – Turn bolt ↓: Decrease gap (output ↓) |
2-10mm precision |
| Shim | – Add shims: Gap widens – Remove shims: Gap narrows |
±0.5mm incremental adjustment |
Drive Mechanism
- Power: Dual 5.5-55 kW motors (V-belt driven)
- Rotation: 50-300 rpm synchronized counter-rotation
- Torque Transmission: Intermediate reduction gear → Long-gear synchronization
Technical Parameters
| Model | 2PG0425 | 2PG0640 | 2PG0740 | 2PG0850 | 2PG1060 | 2PG1260 | 2PG1560 |
| Roller diameter(mm) | Ф400 | Ф600 | Ф700 | Ф800 | Ф1000 | Ф1200 | Ф1500 |
| Roller width(mm) | 250 | 400 | 400 | 500 | 600 | 600 | 600 |
| Input Size(mm) | ≤25 | ≤25 | ≤25 | ≤25 | ≤30 | ≤30 | ≤30 |
| Discharging Gate(mm) | 2-8 | 2-8 | 2-8 | 2-8 | 2-10 | 2-10 | 2-10 |
| Processing capacity(t/h) | 5-10 | 10-20 | 15-30 | 20-40 | 30-50 | 40-70 | 60-110 |
| Power Models | Y132M-6 | Y180L-6 | Y200L-4 | Y225M-4 | Y250M-4 | Y315M-6 | Y315L-6 |
| Motor power(kw) | 5.5×2 | 15×2 | 30×2 | 45×2 | 55×2 | 75×2 | 110×2 |
