Basic Specifications
Model NO.DH360/DH450/DH650/DH850/DH1050
CertificationCE
Roller MaterialAlloy Steel
Capacity1-10t/h per unit
Working MethodDry Powder Granulating
Granule Size2-4mm (Customizable)
Power37kw - 400kw
HS Code8474801000
Packaging & Delivery
Package Size360.00cm * 280.00cm * 320.00cm
Gross Weight21000.000kg
Chemical Fertilizer Double Roller Granulator
Low Energy Consumption Dry Granulation Process
Product Application: Dry granulation is achieved by squeezing powder between two counter-rotating rollers to produce a continuous sheet of material. The DH series granulator handles materials with moisture content ≤1%. By applying external mechanical pressure, it increases material density by 1.5–3 times, creating high-strength granules without needing extra liquid binders.
Working Principle & Process Flow
1
Batching: Weighing raw materials via belt scales.
2
Mixing: Uniform blending of raw materials.
3
Compacting: The DH Series Compactor uses double rollers to squeeze dry powder into high-hardness flakes.
4
Crushing & Screening: Flakes are crushed into 2-4mm irregular granules. Rotary screens recycle dust and oversized particles.
5
Coating & Packaging: Final granules can be coated to prevent clumping before automated bagging (25-50kg or Ton-bags).
6
Dust Collection: Cyclone and bag filters ensure a clean working environment.
Main Features
⚡ Adjustable granule strength via roller pressure.
⚡ Direct granulation without follow-up drying.
⚡ Pure products: No additives or binders required.
⚡ High efficiency with low energy consumption and labor intensity.
⚡ Compact structure and easy maintenance.
⚡ Reduced environmental pollution and waste.
Technical Parameters
| Model |
DH360 |
DH450 |
DH650 |
DH850 |
DH1050 |
| Roller speed (rpm) | 10-25 | 10-25 | 10-25 | 9-16 | 8.5-14.5 |
| Max sheet thickness (mm) | 8 | 12 | 16 | 25 | 36 |
| Rolled sheet output (kg/h) | 1300-2300 | 2500-3500 | 5000-7000 | 12000-16000 | 22000-38000 |
| Finished product output (kg/h) | 900-1300 | 1800-2500 | 3500-4000 | 6000-8000 | 12000-16000 |
| Granular size (mm) | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 |
| Main unit power (KW) | 30-37 | 55-75 | 90-110 | 220-250 | 400 |
| Total weight (t) | 7 | 10 | 21 | 46 | 75-85 |
Global Success Cases
1. Ammonium Sulphate Plant (Belarus): 6 sets of DH650 for 150,000 tons annual production.
2. Potassium Sulphate Plant (Russia): 4 sets of DH850 for 30 tons/hour capacity.
3. Potassium Fertilizer Plant (Bolivia): 5 sets of DH650 for 200 tons/day.
4. Compound Fertilizer Plant (Malaysia): 2 sets of DH1050 for 20 tons/hour.
Frequently Asked Questions (FAQ)
Q1: What is the required moisture content for raw materials?
A: The dry granulation process requires the moisture content of powdery materials to be ≤1% to ensure optimal compression and granule strength.
Q2: Do I need to add water or binders during the granulation?
A: No. Our double roller granulator uses purely mechanical pressure to form granules, maintaining 100% purity of your chemical fertilizers.
Q3: Is a drying process needed after granulation?
A: Since it is a dry granulation method, no follow-up drying process is required, which significantly reduces energy consumption.
Q4: Can the size of the final granules be customized?
A: Yes, the typical size is 2-4mm or 2-5mm. We can design the crusher mesh and screen sizes to meet your specific requirements.
Q5: What materials are the rollers made of?
A: The rollers are made of high-quality alloy steel, ensuring durability, wear resistance, and a long service life.
Q6: What is the typical production capacity?
A: Capacity ranges from 1 to 10 tons per hour per unit, depending on the model (DH360 to DH1050) and material characteristics.