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SmarTork™ Elevator Hoistway Door Closer
SmarTork™ Elevator Hoistway Door Closer saves money and energy, eliminates noise and increases profits. The SmarTork spirator has a patented, innovative spring design that overcomes door-closing problems caused by high-hoistway air pressure and wind shaft velocity.

SmarTork™, with its helical groove design, provides more tension in the "door-closed" position then in the "door-open" position and regains tension as it closes the door. Over 1,000,000 cycles show no significant deviation from torque and tension ratios

The unihub makes it interchangeable with most square shaft or dual pin mounting brackets and the SmarTorktrade; meets or exceeds ASME A17.1 and related codes.

Order your SmarTorktrade; Elevator Hoistway Door Closer today! Call Adams at 800-929-9247.