Elevators

Archimedean Screw Conveyor for Aquaculture

🔧 Technical Description

• Operating Principle:
  The elevator consists of a helical screw partially or fully enclosed in an inclined tube or trough. When the screw rotates, it continuously moves the contents (water + fish/eggs) upward.

• Materials:

  • Structure: stainless steel or reinforced plastic (corrosion resistant)

  • Screw: stainless steel or composite materials

  • Casing: sometimes made of PVC or high-density polyethylene

• Typical Dimensions:

  • Length: from 1 to 10 meters depending on the application

  • Inclination: between 30° and 45°

  • Diameter: depends on the flow rate and size of the fish

🐟 Aquaculture Applications

• Live fish transfer: from grow-out tanks to sorting stations, trucks, or processing units

• Water lifting: for feeding tanks or recirculation systems

• Transport of eggs or fry: thanks to the smooth, continuous movement that reduces stress and injury

✅ Advantages

• Animal welfare-friendly: low turbulence, gentle handling

• Reliable and durable

• Moderate energy consumption

• Easy to clean and maintain

⚠️ Considerations

• Proper rotation speed to avoid injuring fish

• Inclination and diameter must be adapted to the species and life stage

• Regular maintenance to prevent clogging and buildup