Whether hatches or flaps, indoors or outdoors: they all cover up shafts or access points.
Getting to these access points means opening heavy hatches that require lots of force to open and close. Particularly older buildings have heavy doors and hatches in their basements.
HAHN offers customized gas springs to simplify the opening and closing of smaller hatches and shaft covers.
For big and heavy elements, HAHN uses as special double stroke spring. It facilitates the easy operation of big and heavy flaps and hatches with a large opening angle.