Sweep auger for flat bottom silos
Optimize your grain storage operations with a fully automatic sweep auger designed to efficiently extract and unload remaining products from flat bottom silos, ensuring maximum storage utilization and minimal manual intervention.

Extracts Residual Grains from Flat Bottom Silos
The Spirogyre from Morillon is a sweep auger engineered specifically for the efficient unloading of flat bottom silos. This equipment stands out for its fully automatic operation, ensuring safe and reliable extraction of grains such as wheat, maize, and barley, with no need for human intervention. The Spirogyre completes its process with a 360° rotation, effectively clearing residual products that gravity alone doesn’t discharge. You have three options to suit your specific needs: the compact S type with an internal electric motor, the robust SCD type featuring an external transmission system, and the Hydraulic Spirogyre known for handling silos 18 to 38 meters in diameter with a capacity of up to 400 tons per hour. With certifications like ATEX II 2D 125°C, this system is not only powerful but also compliant with safety standards. Optional enhancements such as clearing screws and parked position detectors make it adaptable to your specific operational requirements. The Spirogyre is ideal for agricultural producers and grain storage operators seeking to streamline their unloading and final conditioning processes.
Benefits
- Enhances operational efficiency with fully automatic, human-free unloading.
- Increases silo utilization by effectively clearing residual grains.
- Complies with safety standards, ensuring safe operation in agricultural settings.
- Accommodates varying silo sizes, offering flexibility from 6 to 38 meters in diameter.
- Reduces maintenance needs with sturdy design and optional enhancements for customized operations.
- Applications
- Grains,Animal feed,Wheat,Agricultural products,Cereals,Seeds,Maize,Barley
- End products
- Barley malt,Cornmeal,Flour,Poultry feed,Sunflower seeds,Breakfast cereals,Canola oil,Livestock feed
- Steps before
- Gravity unloading,Initial silo filling
- Steps after
- Packing,Transportation,Further processing
- Input ingredients
- wheat,maize,barley,seeds
- Output ingredients
- extracted grains,silo discharge,flour products
- Market info
- Morillon is known for its expertise in designing and manufacturing industrial unloading systems, particularly silo dischargers suitable for handling bulk solids in challenging conditions, recognized for reliability and robust performance across various industries.
- Capacity
- 25 to 300 tonnes per hour
- Discharge capacities
- Up to 400 T/hr (based on wheat)
- Silo diameter compatibility
- 6 to 38 metres
- Automation
- Fully automatic
- Rotation
- 360° inside the silo
- Certification
- ATEX II 2D 125°C / ATEX II 1/2D 125°C
- Motor location (S type)
- Inside the silo
- Motor location (SCD type)
- Under the silo
- Transmission (SCD type)
- V-belt drive system in a closed casing
- Space requirement
- Takes up little space
- Working mechanism
- Auger with 360° rotation
- Automation level
- Fully automatic,no human intervention required
- Activation process
- Activated post-gravity unloading
- Discharge capacity
- 25 to 300 tonnes per hour
- Operational range
- For silos 6 to 38 metres in diameter
- Motor location
- Inside/Under the silo
- Transmission type
- Direct coupling/V-belt drive
- Abrasion resistance
- Yes
- Biological compatibility
- Yes
- Corrosive resistance (e.g. acids)
- No
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Compatibility with grains
- Wheat,maize,barley,seeds
- Cleanability
- Yes
- ATEX certification
- ATEX II 2D 125°C
- ATEX certification
- ATEX II 1/2D 125°C
- Compact footprint
- Yes
- Discharge method
- Sweep auger
- Silo diameter compatibility
- 6 to 38 meters
- Motor location
- Inside/Under the silo
- Capacity range
- 25 to 300 tonnes per hour
- Clearing screw
- Available
- Brushes
- Available
- Level detector
- Available
- Parked position detector
- Available