Zeco Hydraulic screws fill the gap up to a head of 4 meter, with a flow rate up to 6 m3/s . This makes these machines worth into existing weirs on main rivers. Zeco Screw solution presents the following advantages:

  1. Economical application for low head
  2. Simple and small installation
  3. Easy implementation in existing situations
  4. Entirely Fish Friendly
  5. Low maintenance costs
  6. Good efficiency also with small flow rate


Output: 30 – 150 kW
Heads: 1,5 – 5 m

Existing types of Hydraulic Screws are:

  1. Hydraulic screw with syncronous or asyncronous generator with fix speed
  2. Hydraulic screw with permanent magnet generator with variable speed and inverter.