Hydraulics for renewable energy
Solar trackers, mini-hydro and wind: efficient, low-maintenance hydraulics.
Page maintained by the Gazzera Srl engineering team, updated .
Industry needs and our answers
Monitored pressure
Pressure switch at 100 bar below the 110 bar relief valve: the system always knows whether the brakes have the pressure they need.
Synchronised cylinders
Re-phasing valve block (80 and 65 bar) and an overcentre valve piloted at 3 bar to move two cylinders together.
24 V DC control
3-position CETOP 3 solenoid valve powered at 24 V DC, the control panel voltage.
Compact unit
8 l reservoir and 1.2 kW motor: high force in little space, with minimal maintenance.
A real case: Power unit for wind turbine emergency brakes
| Machine | emergency brake management in wind power |
|---|---|
| Motor | 1.2 kW 4-pole |
| Pump | 3.2 cm³/rev |
| Pressure | relief valve 110 bar; pressure switch at 100 bar; gauge |
| Controls | 3-position CETOP 3 solenoid valve, 24 V DC |
| Circuit | two synchronised cylinders with a re-phasing valve block (80 and 65 bar) and an overcentre valve piloted at 3 bar |
| Reservoir | 8 l |
Frequently asked questions
What does hydraulics offer renewables?
High force in little space with low maintenance: ideal for solar trackers, mini-hydro and wind. We size the unit to minimise energy consumption.
Are they suitable for exposed, long-life installations?
Yes: we select components for minimal-maintenance installations and add protection and treatments for outdoor duty.
Have an application in mind?
Send us your diagram or specs: we reply with a technical proposal sized for your application.