KH Instructions

KH Cantilever Bracket Possible Distances (C)

KH 12 : C min. = 76 mm, C max. = 138 mm
KH 18 : C min. = 102 mm, C max. =  195 mm
KH 24 : C min. = 127 mm, C max. =  251 mm
KH 32 : C min. = 161 mm, C max. =  326 mm
KH 40 : C min. = 195 mm, C max. =  402 mm
KH 48 : C min. = 229 mm, C max. =  477 mm

F : Middle Part
G : Wall Part
H : Bolt M8
I : Plug M8


Distance "E" and Load Bearing Capacity

The larger the distance "E" the greater the load capacity:

KH 12 : ≈ 700 N by 75° and ≈ 1700 N by 25°
KH 18 : ≈ 600 N by 75° and ≈ 1700 N by 25°
KH 24 : ≈ 500 N by 75° and ≈ 1700 N by 25°
KH 32 : ≈ 500 N by 75° and ≈ 1700 N by 25°
KH 40 : ≈ 400 N by 75° and ≈ 1700 N by 25°
KH 48 : ≈ 300 N by 75° and ≈ 1700 N by 25°

KH Size Selection for Round Ducts

A : Necessary clearance between the duct and the wall
B . Clamps (we do not offer this part)
d : Duct-Ø

Example:

Duct-Ø (d) : 300 mm
Distance to the wall (A) : around 100 mm

C = (d ÷ 2) + A = (300 ÷ 2) +100 = 250 mm

For the present case we would recommend the KH 32 according to the table above, or an even larger KH size. Please take into consideration the load bearing capacities which influence the number of cantilever bracets to be installed.