Fertilizers and feed products
Compatible fertilizer powders and feed formulations requiring wet extrusion granulation.
Screw Extrusion Granulator
Screw Extrusion Granulator for Powders and Wet Feed
A versatile extrusion system for forming powders and wet feed into strong, uniform granules, with front- or side-discharge configurations and interchangeable dies for different diameters. Designed and manufactured for fertilizers and feed products and rubber and plastics additives. Review the working principle, performance features and available configuration details below when specifying your industrial project.
- Available in front- and side-discharge designs, with interchangeable dies for different granule diameters.
- single-screw models cover 110–3,000 kg/h; twin-screw models cover 5–1,600 kg/h according to model and material.
- Can be integrated into a complete wet-granulation line for mixing, extrusion, granulation, drying, screening, cooling and packaging.
- Configurations
- Single / twin screw
- Discharge
- Front / side
- Maximum capacity
- 3,000 kg/h
- Granule diameter
- Die-dependent
Product Essentials
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Technical Data
Technical specifications
Listed values apply to the identified configuration. Confirm material conditions, utilities and optional equipment before selection.
| Parameter | Nominal screw diameter: 120 mm | Nominal screw diameter: 160 mm | Nominal screw diameter: 180 mm | Nominal screw diameter: 240 mm | Nominal screw diameter: 360 mm |
|---|---|---|---|---|---|
| Nominal screw diameter (mm) | 120 | 160 | 180 | 240 | 360 |
| Published screw-speed options (r/min) | 96 / 131 / 360 | 96 / 131 / 360 | 96 / 131 / 360 | 96 / 131 / 360 | 96 / 131 / 360 |
| Published adjustable-speed range (r/min) | 0–1440 | 0–1440 | 0–1440 | 0–1440 | 0–1440 |
| Main motor power (kW) | 7.5 / 11 / 15 | To be confirmed according to configuration | 18 / 22 / 37 | 18 / 22 / 37 | 22 / 37 / 45 |
| Production capacity (kg/h) | 110–420 | 350–1000 | 520–1300 | 700–2000 | 900–3000 |
| Parameter | Nominal screw diameter: 60 mm | Nominal screw diameter: 100 mm | Nominal screw diameter: 140 mm | Nominal screw diameter: 180 mm | Nominal screw diameter: 240 mm | Nominal screw diameter: 380 mm |
|---|---|---|---|---|---|---|
| Nominal screw diameter (mm) | 60 | 100 | 140 | 180 | 240 | 380 |
| Published screw-speed options (r/min) | 84 / 96 / 131 | 84 / 96 / 131 | 84 / 96 / 131 | 84 / 96 / 131 | 84 / 96 / 131 | 84 / 96 / 131 |
| Published adjustable-speed range (r/min) | 0–84 / 96 / 131 | 0–84 / 96 / 131 | 0–240 | 0–240 | 0–240 | 0–240 |
| Main motor power (kW) | 5.5 | 7.5 / 11 | 15 / 18 / 22 | 18 / 22 / 37 | 22 / 37 / 45 | 37 / 45 |
| Production capacity (kg/h) | 5–20 | 30–200 | 200–700 | 300–1200 | 450–1600 | 450–1600 |
Capacity depends on feed properties, formulation, die geometry and operating conditions. The motor-power sequence includes “73 kW” exactly as published in the supplied source image; this value should be reconfirmed before equipment selection. Final specifications are subject to material testing and engineering confirmation.
Applications
Screw Extrusion Granulator for Powders and Wet Feed: industrial applications
Applications include fertilizers and feed products and rubber and plastics additives. Confirm material properties and process conditions before selecting the equipment configuration.
Rubber and plastics additives
Rubber auxiliaries, plastics additives and comparable formulated powders.
Food and pharmaceutical products
Food additives and pharmaceutical materials subject to hygienic, material-compatibility and process confirmation.
Catalysts and adsorbents
Catalyst formulations and powdered activated carbon requiring shaped, mechanically strong granules.
Agricultural and chemical products
Pesticides, dyes, pigments and other compatible chemical powders.
Daily chemical products
Suitable household and personal-care chemical formulations after extrusion trials.
Working Principle
From feed preparation to finished product.
The process route is selected around the material and product targets.
Raw-material preparation
Dry ingredients are metered, weighed and mixed; where the referenced wet-granulation process is used, water may be added proportionally during ribbon mixing.
Conditioned feed supply
Prepared wet material, or an already-moist feed, is conveyed continuously to the screw extruder.
Screw conveying and compression
A single screw or two intermeshing screws move the material forward while applying compression and shear.
Die extrusion
The compacted feed is forced through the selected front- or side-discharge die; changing the die changes the extrudate diameter.
Granule formation
The extrudate is formed or cut into the specified granule size for subsequent processing.
Downstream finishing
Depending on the project, granules proceed through drying, screening, cooling and packaging; off-specification particles may be recycled.
Performance Highlights
Process performance shaped around the product.
Final performance remains dependent on feed properties and engineering confirmation.
Uniform extrusion and strong granules
Screw extrusion provides consistent forming pressure and produces granules with good mechanical strength.
Adjustable granule diameter
Interchangeable dies allow the finished diameter to be changed for different products.
Multiple speed-control options
Fixed-speed output, variable-frequency control, electromagnetic control or mechanical speed regulation can be selected.
High output torque
Cycloidal-pinwheel or planetary gear reducers provide strong torque transmission for demanding feeds.
Compact construction
The compact arrangement simplifies operation and integration into a complete processing line.
Convenient cleaning and maintenance
Accessible construction and replaceable dies simplify routine cleaning, inspection and changeover.
Broad material applicability
The series handles a wide range of compatible powders and moist materials after process evaluation.
System Configuration
Standard process path with project-specific options.
Core equipment and auxiliary systems are selected around the process duty.
Front- or side-discharge extrusion
The discharge geometry is selected according to material behavior, granule specification and line layout.
Interchangeable forming dies
Die replacement changes granule diameter and supports different product specifications.
Drive and speed-control options
Fixed-speed, variable-frequency, electromagnetic or mechanical speed regulation can be supplied to suit the duty.
High-torque reduction drive
Cycloidal-pinwheel or planetary gearing provides the torque required for continuous extrusion.
Twin-screw extrusion stage
In a complete line, two intermeshing screws convey, compress and shear the conditioned feed before downstream granulation.
Drum granulation
A continuously rotating drum further develops granules from the prepared material where required by the process.
Rotary distribution
The distributor introduces batches at a controlled angle to obtain the specified loading pattern in downstream equipment.
Belt drying
Continuous belt drying removes moisture from granules and comparable products.
Rotary cooling
The rotating cooler transfers heat from the product to the cooling medium and lowers the granule temperature.
Drum screening
Finished granules are classified by size; qualified material proceeds to packaging and rejects can return for regranulation.
Dual-scale packaging
The final product can be automatically weighed and packed after cooling and classification.
Selection Support
Information required for extruder and production-line selection.
Share the following feed, granule and project data so the screw arrangement, die, drive and downstream system can be confirmed.
Material name and formulationDry or wet feed conditionFeed moisture and binder detailsBulk density and flowabilityRequired granule diameter and shapeRequired production capacityFront- or side-discharge preferenceSingle- or twin-screw configurationPreferred speed-control methodDrying, cooling, screening and packaging scopeProduct-contact material and cleaning requirements
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