rolling door operator--www.auto-opener.com

This series of products are designed to drive the rolling door both automatically and manually. They are suitable for the rolling doors in exhibition halls, hotels, shops, factory buildings and warehouses. Door weight is up to 1000kg.
The products are featured with powerful starting strength, overloading for a short time and heat protection when overloaded. In case of power failure, the release device and ring chain can turn the device into manual one. The device can also be equipped with a remote controller to be controlled from the distance.