The Corn Cob Rotary Dryer in Argentina installed at a large corn farm in Córdoba has transformed 15,000 tons of annual field residue—corn cobs with 25–30% moisture—into three high-value revenue streams.
The Corn Cob Rotary Dryer in Argentina installed at a large corn farm in Córdoba has transformed 15,000 tons of annual field residue—corn cobs with 25–30% moisture—into three high-value revenue streams.
After evaluating options from China and Brazil, the farm owner selected RICHI’s φ1.5×15 rotary dryer, which processes 3–5 tons per hour of coarse, chunky cob pieces (10–30mm) down to 10–12% moisture using aggressive lifting flights and optimized retention time.
The dryer, handles material without excessive dust generation, a common challenge with corn cob drying.
Name:
corn cobs drying machine
Country:
Argentina
Date:
2025
Capacity:
12,000 tons annually
Model:
φ1.5×15
Initial Moisture Content:
25–30%
Target Moisture Content:
10–12%
Raw Material:
corn cobs
Argentina is one of the world's largest corn exporters, with vast production in the Pampas region of Córdoba, Buenos Aires, and Santa Fe provinces. A large corn farm in Córdoba had a significant residue problem: corn cobs.
The farm harvested 20,000 hectares of corn annually, generating about 15,000 tons of corn cobs at 25-30% moisture. The cobs were left in the field after harvest, where they rotted slowly or were occasionally burned. The farm owner decided to dry the cobs for higher-value uses.
He already had a tub grinder for breaking down cobs. What he needed was a corn cob rotary dryer in Argentina that could reduce moisture from 25-30% to 10-12% at 3-5 tons per hour, handling coarse, chunky material (10-30mm pieces) without excessive dust.
After evaluating options from China and Brazil, he purchased one φ1.5×15 rotary dryer from RICHI Machinery. RICHI has supplied similar corn residue drying systems to grain farms across South America. The rotary dryer with aggressive lifting flights has proven itself for coarse, chunky corn cobs.
His decision has turned a field residue into three revenue streams: premium animal bedding, mushroom cultivation substrate, and biomass fuel pellets.
The farm was leaving 15,000 tons of corn cobs in the field annually, representing lost revenue.
The owner calculated that dried cobs (10% moisture) could be sold as animal bedding for $70 per ton, as mushroom substrate for $90 per ton, and as biomass pellets for $60 per ton.
The φ1.5×15 dryer processes 15,000 wet tons annually into 12,000 dry tons. Total revenue: $900,000. Drying cost: $216,000. Net profit: $684,000. Payback under 4 months.
The corn cob rotary dryer in Argentina that the Córdoba farm purchased is a mid-sized model but has the aggressive flighting and retention time that coarse corn cobs demand.
One φ1.5×15 rotary dryer, and a field residue that was worth nothing. That was enough to create $900,000 in annual revenue — turning Argentina's corn cobs from field waste into premium bedding and mushroom substrate.
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