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Door Hardware Products
QDC100 Series Door Closers
We designed and engineered the dormakaba Commercial Hardware QDC100 Series with ultimate durability and versatility in mind. With cast iron construction, retrofit-compatible features and a wide array of options, these ANSI/BHMA Grade 1 closers provide the strength and versatility institutional and industrial markets demand. Built with robust materials and designed for easy customization and retrofit, the QDC100 delivers lasting security for even the most rigorous applications.
Get premium security performance options like delayed action and a back check valve standard with the ANSI/BHMA Grade 1 QDC100 Series.
Installation and application
We engineered the QDC100 Series with all-weather fluid, a variety of arm types and stop options and non-handed and universal mount design to make it easy to stock and use in a wide variety of applications. Plus, there’s no need to re-prep your door. The QDC100 has the same footprint, bolt pattern and rounded cover as the LCN4040 so it’s a simple off-and-on exchange.
With cast iron body construction, cold-forged pinion shaft and forged steel arms, the QDC100 stands up to heavy use over the long term. Innovative construction features like staked valves prevent oil leaks from screws being accidentally backed out too far.
QDC100 closers are available for immediate shipment and are backed by lifetime mechanical and three-year finish warranties.