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Double Roller Extrusion Granulator – Active-Retaining Granulation for Sensitive Materials
The Low-Temp Double Roller Extrusion Granulator is specialized dry-type granulation equipment designed for heat-sensitive, high-value powdery raw materials. It converts powder to pellets through high-pressure mechanical extrusion (0.8-22MPa) between two counter-rotating, temperature-controlled rollers, without adding water, chemical binders, or relying on high-temperature drying. The unique roller cooling system maintains granulation temperature below 60℃, effectively preserving active ingredients, nutritional value, and chemical stability of sensitive materials.
Application Scope
Optimized for heat-sensitive, high-purity material granulation, this machine is widely applied in:
Biological & Organic Fertilizer Industry: Granulation of bio-fertilizers with viable microorganisms, enzyme-added fertilizers, and organic nutrient supplements—retaining microbial activity and nutrient integrity
Food & Feed Industry: Production of functional food additives, vitamin premixes, and high-protein feed pellets—preserving heat-sensitive nutrients like vitamins and amino acids without degradation
Fine Chemical Industry: Granulation of catalyst powders, specialty chemicals, and electronic materials—avoiding chemical structure changes caused by high temperature or moisture
Product Highlights
Low-Temp Granulation & Active Ingredient Retention: Internal circulation cooling system maintains process temperature below 60℃, retaining over 95% of heat-sensitive active ingredients compared to traditional high-temperature granulation
Binder-Free & High-Purity Output: No chemical binders or water addition ensures 100% raw material purity, avoiding cross-contamination and meeting high-standard industry requirements including GMP and organic certification
Precision Pressure Control & Uniform Pellets: Servo-controlled pressure regulation system with 0.1MPa precision produces pellets with consistent density (1.3-1.9t/m³) and compressive strength (≥3.5MPa) with particle size deviation within ±0.2mm
Energy-Saving & Eco-Friendly Design: No drying or pre-heating processes reduce energy consumption by 45% compared to wet granulators, with fully enclosed structure capturing over 99.5% of dust and compact design occupying 30% less space
Wear-Resistant & Easy-to-Clean Structure: Food-grade/wear-resistant alloy steel rollers (HRC ≥62) with 10,000+ hour service life, detachable roller sleeves, and smooth inner walls facilitate quick cleaning and prevent cross-contamination
Technical Specifications
Model
DZJ-I-2.0
Capacity (t/h)
1.5~2.5
Power (kw)
18.5kw
Pressure Roller Size
Φ150×300
Feed Size (mm)
≤0.5mm
Granule Diameter (mm)
Φ2.5~Φ10
Reducer Type/Hardened Gear Series
ZQH400/ZLY160
Material Moisture
2%~5%
With customizable roller patterns (corrugated, honeycomb, customized grooves) and adjustable particle sizes (0.8-12mm), this granulator achieves a forming rate of over 94%, delivering uniform, dense pellets. Suitable for both small-batch customization (0.5-5t/h) and large-scale continuous production (8-35t/h), it serves as core equipment for high-quality granulation in industries requiring strict material purity and activity retention
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2010
Employee Number:
50~100
Ecer Certification：
Verified Supplier
We specialize in providing comprehensive solutions for fertilizer production equipment tailored to meet the diverse needs of our clients. Our state-of-the-art machinery is designed to optimize the production process, ensuring high efficiency and quality in fertilizer manufacturing. We specialize in providing comprehensive solutions for fertilizer production equipment tailored to meet the diverse needs of our clients. Our state-of-the-art machinery is designed to optimize the production process, ensuring high efficiency and quality in fertilizer manufacturing.
