The most popular of our openers, the ACK4 Chain Actuators are manufactured in Italy by TOPP movement. This motor is used widely in both domestic and commercial property.
Versatile - Home or CommercialACK4 is more that just a basic window opener
The ACK4 is also particularly popular in conservatories and orangeries where they can be used with temperature control panels and rain sensors, these manage the temperature all day without the worry rain getting in when you are out of the house.
Sealed MotorACK4 Electric Window Openers are Safe, whatever the weather
As this chain drive has a sealed motor and IP55 rated it can be used on skylights and roof vents where there is a risk of rain
