Mechanical
A manual door closer stores the energy used in the opening of the door in a compression or torsion spring and releases it to close the door. Some closers allow for adjustment of the strength of the spring, making it easier or more difficult to push the door open.
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Yale 1101BF Multi-Sized Industrial Door Closer
The Yale 1101BF industrial door closers are ideal for a wide variety of commercial applications where ease of use and installation are required at an economic price. The 1101BF features rugged construction, adjustments for closing and latch speed, and rack and pinion operation Learn More$106.59
