Always well rolled – VariVent® roller ventilation systems

The VariVent® roller ventilation system from Lock offers all you need:

  • top-opening
  • bottom-opening
  • variable opening from top and bottom

The VariVent® roller ventilation system guarantees high levels of operational safety because they can employ lightweight aluminium tubes with small diameters and lowspeed drives.

All systems are able:

  • be operated in the open air
  • can be operated with forced synchronisation (patent) to prevent collisions
  • can be rolled single or double-format
  • can, depending on the length of ventilation required, have their drive located at one end or in the middle
  • are easy to convert from manual to power drive
  • can be controlled fully automatically, depending on temperature, wind and rain

One single drive is sufficient for a building measuring 100 metres in length, with a maximum opening height of five metres.

Poultry shed
Poultry shed
Dairy cattle shed
Dairy cattle shed
Dairy cattle shed
Dairy cattle shed
Dairy cattle shed
Dairy cattle shed