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The multi-layer topological structure stainless steel four-bar can carry 1000N window sash load, and has passed the US AAMA 15,000 cycle wind pressure resistance certification. The patented self-compensating shaft sleeve makes the friction coefficient constant ≤ 0.08, and realizes 1mm-level opening and closing trajectory control in the strong turbulence at an altitude of 280 meters in the Burj Dubai, providing a mechanical fulcrum that never deviates for super high-rise buildings.
NB-FCB-13.5/15/18/22
Material | Width(mm) | Thickness(mm) | Length(inch) |
SUS201/SUS304 | 13.5/15/18/22 | 2.0/2.5/3.0 | 8"/10"/12"/14"/16"/18"/20"/22"/24" |
NB-FCB(L/R)-13.5/15/18/22
Material | Width(mm) | Thickness(mm) | Length(inch) |
SUS201/SUS304 | 13.5/15/18/22 | 2.0/2.5/3.0 | 8"/10"/12"/14"/16"/18"/20"/22"/24" |
NB-FCH-13.5/15/18/22
Material | Width(mm) | Thickness(mm) | Length(inch) |
SUS201/SUS304 | 13.5/15/18/22 | 2.0/2.5/3.0 | 8"/10"/12"/14"/16"/18"/20"/22"/24" |
NB-FCSH-28
Material | Width(mm) | Thickness(mm) | Length(inch) |
SUS201/SUS304 | 28 | 2 | 6”/8"/10"/12“/14” |
NB-FCL-22
Material | Width(mm) | Thickness(mm) | Length(inch) |
SUS304 | 22 | 5.4 | 12"/14"/16"/18"/20" |
NB-FAD-13.5/15/18/22
Material | Width(mm | Thickness(mm) | Length(inch) |
sUs201/SUS304 | 13.5/15/18/22 | 2.0 | 8"10'12"14/16"/18" |