KWS Manufacturing

Screw Conveyor Ribbon Screw

Screw Conveyor Ribbon Screw

A B Part
Number
Screw
Coupling
Dia
Pipe Sch 40 L A B D E Average Weight
Screw
Dia.
Pitch Size C Std.
Length
Diameter
Tolerance
Pitch Tolerance Flight
Thickness
Flight
Width
Complete
Screw
(Lbs./Ft.)
Flight
Only
(Lbs./ea.)
Pipe OD Plus Minus Plus Minus
4” NOT AVAILABLE
6” 6” 6R312• 1-1/2” 2” 2-3/8” 9′ – 10” 1/16” 3/16” 3/8” 1/4” 3/16” 1” 7 2
9” 9” 9R316• 1-1/2” 2” 2-3/8” 9’ – 10” 1/16” 3/16” 1/2” 1/4” 1/4” 1-1/2” 10 5
9R424• 2” 2-1/2” 2-7/8” 1/4” 3/8” 15 8
12” 12” 12R416• 2” 2-1/2” 2-7/8” 11’ – 10” 1/8” 5/16” 3/4” 1/4” 1/4” 2” 14 13
12R424• 3/8” 2-1/2” 18 19
12R524• 2-7/16” 3” 3-1/2” 11’ – 9” 20 14
12R624• 3” 3-1/2” 4” 3/8” 21 12
14” 14” 14R524• 2-7/16” 3” 3-1/2” 11’ – 9” 1/8” 5/16” 3/4” 1/4” 3/8” 2-1/2” 22 19
14R624• 3” 3-1/2” 4” 3/8” 24 19
16” 16” 16R616• 3” 3-1/2” 4” 11’ – 9” 1/8” 3/8” 3/4” 1/4” 1/4” 2-1/2” 21 17
16R624• 3/8” 26 25
18” 18” 18R624• 3” 3-1/2” 4” 11’ – 9” 3/16” 3/8” 3/4” 1/2” 3/8” 3” 28 34
18R724• 3-7/16” 4” 4-1/2” 11’ – 8” 30 34
20” 20” 20R624• 3” 3-1/2” 4” 11’ – 9” 3/16” 3/8” 7/8” 1/2” 3/8” 3” 31 39
20R724• 3-7/16” 4” 4-1/2” 11’ – 8” 32 39
24” 24” 24R724• 3-7/16” 4” 4-1/2” 11’ – 8” 3/16” 3/8” 7/8” 1/2” 3/8” 3” 37 62
30” 30” 30R824• 3-15/16” 5” 5-9/16” 11’ – 8” 3/16” 3/8” 7/8” 1/2” 3/8” 4” 49 69
36” 36” 36R924• 4-7/16” 6” 6-5/8” 11’ – 7” 3/16” 3/8” 7/8” 1/2” 3/8” 4” 59 79

• R = Right Hand Flighting, L = Left Hand Flighting





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