We're developing the type of pneumatic door closer for garbage chutes

We're recently developing a type of door closer which is used for garbage chute doors. This door closer has similar function as normal gas springs while it is featured to be speed adjustable for the door's closing. Just feel free to contact us if you may need this door closer.

This product has a total length of 310mm and a diameter of 25mm, which fits most of the garbage chute doors on the market.