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{"title":"Energy Saving NPK Fertilizer Production Line with One-Step Forming and 12-15t\/h","imgUrl":"https:\/\/img.chinax.com\/nimg\/88\/10\/ca0a2ff7aebd7c0688346e743315-200x200-1\/energy_saving_npk_fertilizer_production_line_with_one_step_forming_and_12_15t_2fh.jpg","attrs":{"Brand Name":"Shenghong","Model Number":"SDZ Series","Certification":"SGS, ISO, BV","Place of Origin":"Zhegzhou, Henan Province China"}}
{"title":"Advanced NPK Compound Fertilizer Production Line","imgUrl":"https:\/\/img.chinax.com\/nimg\/87\/95\/0f1e62f390e1aee4b9d63731cc18-200x200-1\/advanced_npk_compound_fertilizer_production_line.jpg","attrs":{"Brand Name":"shenghong","Model Number":"SDZ","Certification":"ISO9001","Place of Origin":"Henan\uff0cChina"}}
{"title":"NPK Fertilizer Production Line with 12-15t\/h Capacity No Drying Process and","imgUrl":"https:\/\/img.chinax.com\/nimg\/dd\/13\/cee6176c1cb47fbe2f41dac39f55-200x200-1\/npk_fertilizer_production_line_with_12_15t_2fh_capacity_no_drying_process_and_below_10_25_moisture_for_efficient_fertilizer_granul.jpg","attrs":{"Brand Name":"Shenghong","Model Number":"SDZ Series","Certification":"SGS, ISO, BV","Place of Origin":"Zhegzhou, Henan Province China"}}
{"title":"3-4 Tons Per Hour Double Roller Extrusion NPK Fertilizer Production Line with","imgUrl":"https:\/\/img.chinax.com\/nimg\/58\/f5\/96ac0e3da2f5d513500bf1ca95d6-200x200-1\/3_4_tons_per_hour_double_roller_extrusion_npk_fertilizer_production_line_with_22kw_power_for_oval_shape_granules.jpg","attrs":{"Brand Name":"Shenghong","Model Number":"SDZ Series","Certification":"CE, ISO, BV","Place of Origin":"Zhegzhou, Henan Province China"}}
{"title":"Potassium Sulfate Fertilizer Production Line with 5-6T\/H Capacity Carbon Steel","imgUrl":"https:\/\/img.chinax.com\/nimg\/21\/e2\/c40d294f4d5322425917fca096e8-200x200-1\/potassium_sulfate_fertilizer_production_line_with_5_6t_2fh_capacity_carbon_steel_material_for_oval_shape_granules.jpg","attrs":{"Brand Name":"Shenghong","Model Number":"SDZ Series","Certification":"SGS, ISO, BV","Place of Origin":"Zhegzhou, Henan Province China"}}
{"title":"NPK Compound Fertilizer Production Line 6-8t\/h Capacity","imgUrl":"https:\/\/img.chinax.com\/nimg\/60\/c2\/169d417cbd6b140b8c617893c566-200x200-1\/npk_compound_fertilizer_production_line_6_8t_2fh_capacity.jpg","attrs":{"Brand Name":"Shenghong","Model Number":"SDZ Series","Certification":"ISO, BV","Place of Origin":"Zhegzhou, Henan Province China"}}
{"title":"Customized NPK Compound Fertilizer Production Line with Dry Roller Extrusion","imgUrl":"https:\/\/img.chinax.com\/nimg\/3b\/c5\/81bb887cfd90a04a71508e59dff5-200x200-1\/customized_npk_compound_fertilizer_production_line_with_dry_roller_extrusion_granulator_for_7_8t_2fh_capacity_and_no_drying_proces.jpg","attrs":{"Brand Name":"Shenghong","Model Number":"DZJ Series","Certification":"SGS, ISO, BV","Place of Origin":"Zhegzhou, Henan Province China"}}
NPK Fertilizer Double Roller Granulation Production Line – One-Step Forming, Energy Saving
The Double Roller Extrusion Granulation Line is an advanced dry granulation system designed for the production of NPK compound fertilizer, organic-inorganic blended fertilizer, and BB fertilizer. Unlike traditional drum granulation lines that require drying and cooling, this line adopts extrusion technology to form granules at room temperature, eliminating the need for dryers, coolers, and fuel consumption.
With capacities ranging from 1 to 30 tons per hour (10,000-200,000 tons per year), this line offers a compact, energy-saving, and cost-effective solution for fertilizer manufacturers worldwide.
Why Choose Dry Extrusion Granulation?
Comparison
Wet Granulation (Drum)
Dry Extrusion (Double Roller)
Drying required
Yes - high energy cost
No - room temperature
Cooling required
Yes
No
Fuel consumption
High
Zero
Equipment footprint
Large
Compact
Investment cost
High
Low
Waste water/gas
Yes
No
Granulation rate
60-70%
85-95%
Production Process Steps
Batching System - Multiple bins with screw or belt feeders controlled by PLC for precise weighing.
Mixing System - Double-shaft horizontal mixer ensures homogeneous blending of N, P, K, and additives.
Granulation System - Double roller extruder presses material into high-density strips under 15-25 tons pressure.
Crushing System - Chain crusher breaks strips into small particles.
Screening System - Rotary drum screener separates qualified granules (1-6 mm) from fines.
Polishing System (Optional) - Spheronizer rounds granules for smooth surface and uniform shape.
Coating System (Optional) - Rotary drum coater applies anti-caking agent or functional coating.
Packaging System - Automatic scale bagger with sewing machine or heat sealer.
Raw Material Compatibility
This line works with a wide range of fertilizer raw materials:
Additives: Boron (B), manganese (Mn), zinc (Zn), copper (Cu), iron (Fe), anti-caking agents, binders (optional, usually not required)
Key Advantages
Low Investment, Quick Payback - No dryer, cooler, or hot air furnace required. 30-40% lower equipment cost compared to wet granulation lines.
Energy Saving - Zero fuel consumption. Only electricity needed - 40-50% less energy than drum lines.
Environmentally Friendly - No waste water discharge. No exhaust gas or dust emission (enclosed system).
Easy Operation - Simple process flow with fewer equipment. PLC automatic control reduces labor (2-3 operators per shift).
High Granule Quality - High density granules with smooth surface. Low caking tendency during storage. Uniform size for even spreading.
Flexible Production - Switch between different NPK formulas in 30 minutes. Produce compound fertilizer, organic compound fertilizer, or BB fertilizer base granules.
Typical Applications
Application
Description
NPK compound fertilizer
20-20-20, 15-15-15, 16-16-16, 25-10-10, etc.
High-concentration fertilizer
Total NPK up to 48%
Organic-inorganic blend
Mix with fermented organic matter (30-50%)
Urea-based fertilizer
High nitrogen formulas for rice, corn, wheat
Sulfate-based fertilizer
For chlorine-sensitive crops (tobacco, potato, fruit)
Features of NPK Fertilizer Production Line
Simple machine structure
Easy operation and maintenance
One-time forming, no drying process, normal temperature granulation
Double-shaft power output - each shaft drives its roller via coupling for synchronous counter-rotating operation, resulting in better granule formation and higher strength
Simple ball socket alignment adjustment design, convenient for customer self-adjustment. Roller adjustment drawing and operation steps are provided
All machines are tested and trial-produced by professional workers before leaving the factory
Zhengzhou Shenghong Heavy Industry Technology Co.,Ltd.(Short for “Shenghong”)is recognized globally as an expert in process design and equipment manufacturer on fertilizer industry, including organic fertilizer production line with 5000 to 100000 tons per year and compound fertilize... Zhengzhou Shenghong Heavy Industry Technology Co.,Ltd.(Short for “Shenghong”)is recognized globally as an expert in process design and equipment manufacturer on fertilizer industry, including organic fertilizer production line with 5000 to 100000 tons per year and compound fertilize...