<p>Electric door closers are also called automatic door closer releases, fire linkage door closers, normally open fire door closers, etc., whose function is to control the positioning, release and closing of normally open fire doors. Usually keep the fire door 0-170° normally open, and the fire protection linkage monitoring system can realize the automatic closing of the fire door in sequence through the electronic control method.</p><p><br></p><p><br></p><p>Electric door closer</p><p>The automatic <a href="https://www.motorlsdd.com/products" rel="noopener noreferrer" target="_blank"><a href="https://www.motorlsdd.com/products" target="_blank">door opener </a></a>is a kind of drive composed of a motor, a variable speed structure, a clutch device, etc., which is an electromechanical product. Usually used to control the electric opening and closing of various door leaves.</p><p><br></p><p><br></p><p>Swing automatic door opener</p><p>In summary, the difference between electric door closers and automatic door openers is obvious. Electric door closers can only control the positioning and automatic closing of the door, not automatic opening. Because the automatic door opener is driven by a motor, it can realize the automatic opening and closing of the door. There are also differences in the scenes used. Electric door closers are generally used for normally open fire doors, and they must be able to automatically close the door in case of fire and isolate the fireworks. The automatic door opener is suitable for channel casement doors, which can realize intelligent induction and contact-free automatic door opening and closing, and can also be connected to the access control system to open the door by swiping the card or fingerprint.</p>
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