Features

• Since the spring constant is lower than that of coil springs, the spring force can be almost constant over a long compression stroke, and it has the optimum characteristics for opening and closing doors.
• With spring action and damping action, the opening/closing speed of doors can be controlled reliably.
• Opening/closing of various lids such as copier lids, v***ing machine lids, roof box lids, etc., and lifting/lowering of hanging shelves, etc.