This is a magic tool named a automatice window opener . it’s a compact and powerful greenhouse ventilation machine.

It uses tried-and-tested standard Unitoolvent hydraulic cylinders that have proven their quality and durability over the years.

Unitoolvent’s automatic switch gear is highly versatile. Characteristics of the discoverer:

• Compact

• Innovative simple installation system

• Double spring

The innovative mounting system makes it easy to disconnect the open end. No tools or complicated programs required. You just disconnect one end of the spring and take it out for the winter.

Unitoolvent’s automatic openers have a wide range of uses, but the most common openers are:

Greenhouse Windows:

Unitoolvent corkscrews are commonly used to open the outposts of greenhouses. The double-spring design makes it ideal for light Windows, as the small weight of the window itself does not cause the window to close under the action of its mass.

Greenhouse:

Due to its compact design, the Unitoolvent bottle opener is ideal for opening the lid of a steam box. The openers take up little space inside the park, leaving plenty of room for your plants.

Features:

Material: Aluminum

Opening force (a): 7 kg

Normal closing force (a) (b): 0.8kg

Open temperature range: 17-25 ℃

Maximum window opening temperature (c): 30℃

Maximum opening length :45 cm

Standard color: Metallic (raw)

1) Depends on the type of spring installed.

2) The weight of the window contributes to the force of the spring when closed and is added to the specified opening force when closed.

3) Depends on initial temperature and load. The higher the load on the opener, the higher the temperature of the opener.