Roller Extrusion Granulator – Dry-Type Granulation Equipment
The Double Roller Extrusion Granulator is an advanced dry-type granulation system that transforms powdery, crystalline, or micro-granular raw materials into dense, high-strength pellets through high-pressure extrusion between two counter-rotating rollers. This innovative equipment achieves direct granulation via the physical bonding force of materials themselves, eliminating the need for water addition, drying processes, or chemical binders.
Energy-saving, environmentally friendly, and cost-effective production with consistent particle quality and forming rates exceeding 92%.
Key Technical Features
- Precision-adjustable roller pressure range: 0.5-20MPa
- Customizable roller surface patterns: smooth, grooved, or tooth-shaped
- Adaptable to diverse material properties and pellet specifications
- Suitable for both small-batch R&D and large-scale continuous production
- Production capacity range: 1-30t/h
Application Scope
Optimized for dry-type, binder-free granulation across multiple industries:
- Fertilizer Industry: Granulation of compound fertilizers (NPK), organic-inorganic mixed fertilizers, ammonium sulfate, potassium chloride, and slow-release fertilizer raw materials
- Chemical Industry: Processing of inorganic salts, chemical intermediates, catalyst powders, and detergent powders
- Mining & Metallurgy: Pelletization of iron ore concentrate, coal powder, metallurgical slags, and non-ferrous metal ore powders
- Building Materials: Granulation of cement clinker, fly ash, limestone powder, and refractory materials
- Food & Pharmaceutical: Production of food additives, pharmaceutical excipients, and health product granules (with food-grade stainless steel configuration)
Performance Highlights
- High Pressure & Dense Pellets: Roller pressure up to 20MPa produces pellets with bulk density 1.2-1.8t/m³ and high mechanical strength (compressive strength ≥3MPa)
- Low Powder Content: Minimal dust generation suitable for long-distance transportation and storage
- Flexible Particle Customization: Adjustable to produce pellets of different shapes (cylindrical, oval, irregular) and sizes (1-10mm)
- Quick Roller Replacement: Supports multi-specification production without complex debugging
Technical Specifications
| Model |
DZJ-I-1.0 |
| Capacity (t/h) |
1~1.5 |
| Power (kW) |
15kW |
| Pressure Roller Size |
Φ150*220 |
| Feed Size (mm) |
≤0.5mm |
| Granule Diameter (mm) |
Φ2.5~Φ10 |
| Reducer Type/Hardened Gear Series |
ZQH350/ZLY160 |
| Material Moisture |
2%~5% |
