Vacuum coaters for high liquid addition in feed production
Enhance your feed production with precision liquid coating, saturating pellets to their core for improved nutritional delivery and product quality. Ideal for seamlessly integrating into your existing processing line, this solution ensures consistent results batch after batch.

Adds Liquids and Coats Pellets Evenly
Ottevanger Milling Engineers’ DPMA series vacuum coaters are engineered to significantly enhance liquid incorporation into pellets, improving the quality of aquatic feed, pet food, and livestock feed. The vacuum coating process penetrates the pellet core, ensuring uniform distribution of liquids such as oils and enzymes. Available in sizes from 500L to 2800L, they are well-suited for both batch and continuous operations. Constructed from durable stainless steel grades 304 and 316, they offer superior resistance to corrosion, making them ideal for demanding processing environments. With low energy consumption and easy integration into existing production lines, these machines cater to aquatic feed producers, pet food manufacturers, and feed production companies seeking efficient and reliable processing solutions. Additionally, they support variable operation modes and are equipped with a comprehensive liquid dosing system for precise ingredient delivery.
Benefits
- Ensures precise liquid saturation for improved pellet digestibility and nutritional value.
- Minimizes energy usage, lowering operational costs.
- Provides corrosion-resistance for longevity in harsh environments.
- Reduces manual intervention with automated liquid dosing system.
- Enhances production flexibility with batch and continuous operation modes.
- Applications
- Pet food,Aquatic feed,Feed production
- End products
- Dog kibble,Shrimp feed,Fish pellets,Cat food,Poultry feed,Livestock feed
- Steps before
- Grinding,Mixing,Conditioning,Pelleting
- Steps after
- Drying,Cooling,Crumbling,Sieving
- Input ingredients
- pigments,micro-ingredients,oil,aromas,fats,Phytase enzymes,vegetable oil
- Output ingredients
- pellets,extrudates with added liquids and micro-ingredients
- Market info
- Ottevanger Milling Engineers is renowned for designing and manufacturing innovative milling equipment and complete production lines for the grain processing industry, including feed mills, flour mills, and biomass processing, with a reputation for quality, efficiency, and customized solutions.
- Capacity
- 500–2800 L
- Drive
- 7.5–37 kW
- Weight
- 2000–8400 kg
- Material
- Stainless steel grades 304 and 316
- Liquid addition
- Up to 30%
- Batch operation
- Batch-wise process
- Energy consumption
- Low
- Coating method
- Vacuum process
- Special execution
- Vacuum pump set,Weighing frame,Liquid dosing equipment
- Powder addition system
- Digest
- Working mechanism
- Batch-wise vacuum coating
- Integrated steps
- Liquid addition into pellet core
- Batch vs. continuous operation
- Batch
- Automation level
- PLC-controlled
- Energy efficiency
- Low energy consumption
- Versatile operation
- Various feed and pet food applications
- CIP/SIP
- Manual cleaning
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Liquid addition percentage
- 8% to 30%
- Industry application
- Feed,Pet food,Aquatic feed
- Machine type
- Vacuum Coater
- Volume Capacity
- 500–2800 L
- Dimensions
- Varies by model
- Material
- Stainless Steel 304 / 316
- Drive Power
- 7.5–37 kW
- Weight
- 2000–8400 kg
- Design
- Compact
- Discharge method
- Batch-wise
- Footprint
- Compact
- Material Grade
- Stainless Steel 304 / 316
- Vacuum Pump Set
- Available
- Weighing Frame
- Included
- Liquid Dosing Equipment
- Included
- Powder Addition System
- Available