Let us provide you with perfect greenhouse autovents picked from our wide selection. We supply ventilation, cylinders and greenhouse autovents worldwide.

Our autovents for garden greenhouses ensures the perfect temperature all year round with minimal maintenance. For more than 30 years we have offered the best greenhouse autovents to the market. J. Orbesen Teknik ApS is the world’s leading manufacturer of autovents for garden greenhouses.

Find your greenhouse autovents right here

In our wide selection of automatic vents you will surely be able to find the perfect greenhouse autovents for you. Listed below are a few of our innovative autovents.

Please allow yourself to take a tour on our website for more information on these fantastic autovents. Furthermore the website contains high quality pictures of all our products. You are of course most welcome to give us a call if you have any questions about our autovents or autovents in general.

VENTOMAX – autovents for greenhouses

Ventomax window openers are slim and powerful autovents for greenhouses. Ventomax are popular high quality autovents with a long durability and is based on our well-proven standard hydraulic cylinder.

The unique design of Ventomax autovents keeps the hydraulic cylinder on the inside of the greenhouse at all times, no matter the position of the window. Due to this very important feature, these autovents will always react correct and rapidly on the temperature inside the greenhouse.

UNIVENT – autovents for greenhouses

The Univent window opener is a one of the most compact and powerful autovents on the market today. It uses our widely used and well-proven standard hydraulic cylinder that throughout many years on the market has proven its high quality and durability.
Univent window openers are truly universal autovents with a high degree of versatility. The key features that differentiate this window opener from many other autovents are:

  • The compact design
  • The innovative Easy-Clip-System
  • The double-spring design
  • The innovative Easy-Clip-System makes it possible to rapidly disconnect one end of the opener.
  • No tools or difficult procedures are required.

Contact us today if you need more information on our automatic vents. We can guide you and help you choose the perfect solution for your greenhouse.

For Professionals/B2B
For Professionals/B2B


Please contact us

Phone: (+45) 59 65 17 17

Monday-Thursday: 8:00 am – 16:00 pm

Friday: 8:00 am – 14:00 pm