White flake desolventization for oilseed processing
Optimize your oilseed processing with a system designed to efficiently desolventize white flakes, enhancing product quality, reducing hexane losses, and ensuring maximum flake integrity in your production line.

Desolventizes and Preserves White Flake Integrity
The Down Draft Desolventizer (DDD) from Crown Iron Works is engineered specifically for oilseed processors requiring effective desolventization of white flakes. This system uses a series of heated trays to gently process flakes while preserving their structural integrity, which is crucial for producing high PDI soybean meal. The DDD is a key component in applications like oilseed processing, biofuel production, and plant protein extraction, offering reduced hexane losses below 500 PPM for operational cost savings. With a processing capacity of up to 10 tons per day, it requires less than 40hp, emphasizing energy efficiency with its low-pressure indirect steam mechanism. The compact design minimizes floor space usage, while fewer moving parts lead to lower maintenance demands and reduced downtime. Fully adaptable to your specific production needs, Crown’s DDD is suitable for continuous or semi-automatic operations, seamlessly integrating upstream and downstream with extractors and toasters to enhance your production line’s flexibility and efficiency.
Benefits
- Enhances product quality by maintaining high PDI in soybean meal with minimal flake damage.
- Lowers operational costs with hexane losses reduced to under 500 PPM.
- Conserves energy through efficient use of low-pressure indirect steam.
- Minimizes maintenance and downtime with a compact, low-moving-parts design.
- Frees up production space due to its compact footprint.
- Applications
- Specialty chemicals,Nutraceuticals,Plant-based proteins,Fats,Oils,Oilseed processing,Food products,Biodiesel,Biofuel,Renewable diesel,Hemp cbd oil extraction,Pharmaceuticals
- End products
- Plant protein isolates,Cooking oils,Polymers,High pdi soybean meal,Transesterified biodiesel,Pharmaceutical-grade nutrients,Oleochemicals,Sunflower oil,Degummed oil,Cbd oil,Nutraceutical supplements,Bleached oil,Refined edible oils,Edible fats,Specialty waxes
- Steps before
- Oilseed Preparation,Grinding,Drying
- Steps after
- Packing,Sterilization
- Input ingredients
- white flakes,oilseeds,plant-based materials
- Output ingredients
- high PDI meal,high NSI meal,desolventized flakes,residual hexane
- Market info
- Crown Iron Works is renowned for its expertise in designing and manufacturing engineered-to-order equipment for oilseed processing and edible oil extraction, with a strong reputation for innovation, reliability, and delivering customized solutions worldwide.
- Capacity
- 10 tons per day
- Power requirement
- Less than 40 hp
- Hexane losses
- Less than 500 PPM
- Steam usage
- Low-pressure indirect steam
- System design
- Compact
- Automation level
- Manual / PLC / SCADA
- Batch vs. continuous operation
- Batch / Inline Continuous
- CIP/SIP
- CIP 121°C / SIP 135°C
- Cleaning method
- CIP / Manual
- Energy efficiency
- 0.5–2 kWh/kg moisture
- Flexibility in operation
- Fine-tune PDI,residual hexane,steam consumption
- Gentle handling
- Maximum amount of whole flakes,minimum amount of fines
- Hexane loss control
- Less than 500 PPM
- Low-pressure steam usage
- Indirect steam for hexane vapor removal
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Machine footprint
- Compact
- Discharge method
- Series of Heated Trays
- Control panel type
- Not specified
- Compact footprint
- Less floor space
- Power requirement
- Less than 40hp for 10-ton-per-day
- Control panel type
- PLC-controlled
- Compact footprint
- Requires less floor space