I. Product Description:
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
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
Applicable door weight
Applicable door width
Please install as required in instruction
Two-phase speed governing, without positioning function
Two-phase speed governing, with positioning function
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.