Extrusion Fertilizer Granulator Machine with 1-4 t/h Capacity and 2-10mm Pellet Diameter Made of Carbon Steel

The Double Roller Press Granulator is designed for efficient fertilizer production through extrusion technology, offering high capacity and reliable performance for various material types including humic acid and sludge.

Utilizing an extrusion sliding model design, raw materials pass through double rollers into the scattering chamber. Granulation occurs as materials exit through a customized sieve at the machine bottom. Qualified granules are separated while remaining materials return to the mixer for re-granulation.

• Double shaft power output with synchronized opposite-direction roller operation for superior granule formation and strength
• Simple ball socket contraposition adjustment design with provided drawings and operation steps for easy client maintenance
• Factory-tested and trial-produced by professional workers to ensure optimal performance
• High capacity extrusion with particle strength ≥ 15N and 30% reduced energy consumption

The electric motor drives the pulley, transmitting power through the speed reducer to a pair of high-pressure roller bodies with sliding mold shells for relative work.

DZJ-I Extruder: Two rollers interact through a pair of split gears.

DZJ-II Extruder: Two rollers are driven directly by two output shafts on a dedicated reducer for extrusion.

During production, raw materials enter the hopper and are pressed and formed by the high-pressure roller body. After mold release, materials flow to the crushing and forming section driven by chain transmission from the active press roller shaft.

Rollers are forged from special materials and precision-machined with numerical lathe and milling equipment, featuring rust resistance, acid/alkali resistance, long service life, and crack resistance.

• Input (use chain crusher if blocked)
• Granulation
• Screening (select appropriate sieve hole diameter)
• Finished granules
• Next process (optional equipment: screening machine for accurate sizing, coating machine for improved appearance, weighing and packaging for sales and transportation)