The dampers are forceabsorbing devices and come in two types to control speed in either compression or extension, depending on the mounting position. A piston with a small orifice that must pass through hydraulic oil controls speed. The devices are made in rod/tube-diameter sizes from 0.24 0.59 in. to 0.315 0.87 in., with stroke lengths from 2 to 7 in., extended lengths from 7.9 to 19.7 in., and maximum load capacities from 50 to 100-lb load/damper. Heavy, medium-heavy, medium, medium-light, and light-damping dampers are available.

H. A. Guden Co. Inc., 99 Raynor Ave., Ronkonkoma, NY 11779, (800) 344-6437,