Fire-proof Door Closer

product description:

I. Product Description: B4W 1. Adopt Germany manufacturing technology, sealing ring imported from Germany, durable and free from oil leakage. 2. Its service life are 1 million times, implement America ANSI/BHMA156.4 standard. 3. Build in imported high-quality non-flame anti-freezing oil, can be normally used above -40℃. 4. B4W series, its installation hole’s diameter is188X19mm, can be changed for other brand. 5. Two choices: non-positioning and positioning, the largest door-opening angle is 180°. II. Plan diagram of product III. Main Parameter Model Size mm Applicable door weight Applicable door width Function Please install as required in instruction A B C D E B4W 188 204 19 42 72 80—120KG ≤1400cm Two-phase speed governing, without positioning function B4D 188 204 19 42 72 80—120KG ≤1400cm Two-phase speed governing, with positioning function IV. Model B4W Size (mm): length 204, width 42, height 72 Installation Size (mm) 19*188 Door Weight Range: 80—120KG Function: Dual-speed governing, positioning and non-positioning, has fire-proof and freeze protection function. Applicable Range: Heavy steel door, wooden fire-proof door, stainless steel anti-theft door, burglary-proof door.

Established in 1999, Jinhong Hardware Co., Ltd - a manufacturer, which has infused more and more technology components into modern architecture, specializes in producing door closers with fire prevention function. The door closers we provided are good in both artistic quality and function. In the door closer industry we are among the earliest ones which have passed several kinds of certification, and we also strictly implement the quality control system. Our company is one of these door closer manufacturers of large scales at home: it has an annual output of 1,200,000 sets of door closers, and 500,000 sets of them are exported to abroad. We also have set up 20 business offices in China.