Pneumatic Door Closer from China, Pneumatic Door Closer Manufacturer & Supplier

In order to meet the customer's demand for a range of manufacturing door hardware, we offer various products, such as door closers hardware, stainless steel SS 304 door locks, best fire rated door hardware, solid door handle hardware and so on. We adhere to the principle of "Quality is our life" to manufacture commercial door hardware, continue to improve the processing techniques to meet the requirements of our customers in both China and the other countries. As a professional China commercial door hardware manufacturers, we provide customers the best service and products, our architectural hardware products have been sold in many places and have a good reputation, so it must be your best choice.

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Hot Sale Door Hardware With Fire Rated

Here are the hot sale fire rated door hardware of D&D, which have been tested the fire resistant to the international industry standards to meet your demands, including CE,BS EN1634,UL 10C etc.

Fire Rated Door Hardware Fire Rated Door Handle Fire Rated Door Hinge Fire Rated Steel Door Hardware Fire Rated Door Lock Fire Rated Door Control Fire Rated Wooden Door Hardware Fire Rated Metal Door Hardware Fire Rated Panic Hardware

: +86-139 2903 7292 David Jian

 : +86-750-3856396

+86-750-3856395 / 3856397

: www.dndhardware.com

: sales@dndhardware.com

Pneumatic Door Closer

A pneumatic simple door closer is a device used for automatically closing doors. Its core function is to combine mechanical and pneumatic principles to enable the door to close slowly and smoothly after being opened, avoiding collisions or noise caused by rapid closing. The term "simple" indicates that its structure is relatively simple and the cost is low, making it suitable for daily scenarios where the closing accuracy is not highly demanded. The term "pneumatic" refers to the fact that it controls the closing speed through the damping effect of compressed gas, which is different from traditional hydraulic door closers (utilizing liquid damping) or purely mechanical door closers (relying solely on spring force).