Unloader for non-free-flowing materials in flat bottom silos
Facing challenges unloading non-free-flowing materials? This hydraulic system ensures smooth, efficient discharge in flat bottom silos, regardless of material type or density, while following a FIFO strategy for optimal inventory management.

Unloads and Sweeps Non-Free-Flowing Silo Materials
The Hydraugyre from Morillon Systems is a hydraulic silo screw unloader designed to tackle the challenge of discharging difficult, non-free-flowing materials stored in flat-bottom silos. Its unique system employs a hydraulic transmission that drives an Archimedes screw, enabling high torque at low speeds. This configuration achieves smooth, 360° sweeps of silo contents while supporting FIFO (first in, first out) unloading. The Booster start-up system allows operation from a full silo, irrespective of the screw’s initial position, enhancing operational flexibility.
Ideal for industries such as food processing, agriculture, chemical, and biomass, the Hydraugyre manages a wide array of materials—from wood pellets and grain to powdered chemicals and minerals. It supports silos ranging from 2 to 27 meters in diameter, with discharge capacities up to 600 cubic meters per hour, adapting to various operational demands.
The Hydraugyre is plug-and-play, making installation straightforward and space-efficient. In terms of material and environmental adaptability, options include ATEX certification for explosive atmospheres and designs for high-temperature conditions (up to 150°C). Additionally, it offers stainless steel construction and the use of food-grade or biodegradable lubricants as part of Morillon’s eco-friendly Green System.
Engineered for durability and reliability, the system provides ease of maintenance—even under full-load conditions—ensuring minimal production disruption. This solution seamlessly integrates into existing setups, offering a significant upgrade in efficiency and reliability for large-scale storage and material handling operations.
Benefits
- Enhances material flow by ensuring complete, efficient unloading of difficult-to-discharge materials.
- Reduces operational interruptions with maintenance capabilities even when the silo is full.
- Adapts to various materials and conditions with customizable options, including ATEX and high-temperature settings.
- Optimizes space and energy use with compact, plug-and-play design featuring a low oil requirement.
- Improves environmental sustainability through the use of biodegradable lubricants.
- Applications
- Peat,Animal feed,Clay,Minerals,Wood pellets,Grain,Coal,Food ingredients,Fibrous materials,Sand,Powdered chemicals,Biomass,Fertilizers,Cement
- End products
- Barbecue briquettes,Wood chips,Cornflakes,Ammonium nitrate,Baking powder,Insulation wool,Anthracite coal,Glass sand,Portland cement,Terracotta clay,Poultry feed,Talcum powder,Potting mix,Calcium carbonate powder
- Steps before
- Storage,Filling,Feeding
- Steps after
- Conveying,Transport,Packaging
- Input ingredients
- difficult materials,non-free-flowing materials,heavy materials,lightweight materials,powdery materials,fibrous materials,dry materials,wet materials
- Output ingredients
- unloaded 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.
- Unloading strategy
- FIFO (first in,first out)
- Transmission type
- Hydraulic transmission
- Silo diameter compatibility
- 2–27 metres
- Discharge capacity
- Up to 600 cubic metres per hour
- Operating environment
- Flat bottom silos
- Torque transmission
- High torque at low speed
- Temperature tolerance
- Up to 150°C
- Material of construction
- Stainless steel version available
- Fluid used
- Small quantity of oil,food grade oil optional
- Working mechanism
- Hydraulic transmission with Archimedes screw
- Automation level
- Manual / Automatic start with Booster system
- Start-up capability
- Launch in full silo
- Rotation range
- 360° rotation
- Material handling capability
- Non-free-flowing,heavy,lightweight,powdery,fibrous,dry,wet
- Discharge capacity
- Up to 600 cubic metres/hour
- Size compatibility
- For silos between 2 and 27 metres in diameter
- Temperature operation
- High temperatures up to 150°C
- ATEX operation
- Explosive atmosphere compatible
- Abrasion resistance
- Yes
- Biological compatibility
- Potential
- Cleanability
- Moderate
- Corrosive resistance
- Stainless steel version available
- Density/particle size
- Variable
- Handles from powdery to fibrous materials
- Feed type
- Dry / Wet / Granular (powdery or fibrous)
- ATEX environments
- Option available
- High temperature compatibility
- Up to 150°C
- Product state compatibility
- Dry/Wet
- ATEX certification
- Yes
- FDA materials
- Possible,with food grade oil option
- Machine footprint
- Compact
- Feed/Discharge method
- Hydraulic transmission with Archimedes screw
- Silo diameter
- 2 to 27 metres
- Discharge capacity
- Up to 600 cubic metres per hour
- Screw rotation
- 360° rotation
- Footprint space
- Minimal due to compact design
- Material construction
- Stainless steel and other materials for different versions
- Hydraulic Unit Integration
- Plug and play system
- Size Compatibility
- Silos 2 to 27 metres in diameter
- Output Regulation
- Speed regulation
- Material Options
- Stainless steel version
- Eco-friendly Options
- Green System with biodegradable lubricants
- Operating Temperature
- Up to 150°C
- ATEX Certified Version
- Available
- Oil Type
- Possibility of using food grade oil