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Ribbon Flight Screw Conveyor Systems, Components & Parts

When handling sticky materials or for mixing needs a ribbon flight screw conveyor is recommended. Standard sections range from 6" up to 24" in diameter, we offer the ribbon flighting only or as a complete mounted screw assembly, along with a complete ribbon screw conveyor system. We also supply ribbon screws in specific materials such as stainless steel, Monel, or other specified. The pipes for ribbon flight screws feature seamless internal locking collars at each end are standardly fastened to the pipe with Nu-Weld lugs, eliminating the need to drill and fasten holes in the mounting pipe and therefore ensures a stronger unit.

Ribbon Screw Conveyor Design

The design aspect of a ribbon conveyor screw eliminates the issues that arise with sticky materials because the materials are unable to gather or minimally able to collect where the flights join the piping. There are three different types of ribbon flight conveyor screws; integral leg ribbon screw (standardly supplied), double flight ribbon screw, and post type ribbon screw.

Integral Leg Ribbon Screw


This style is the most common for conveying sticky materials and utilize the post as part of the ribbon flighting.

Double Flight Ribbon Screw For Mixing


Using a double flighting ribbon screw provided excellent mixing for dry materials, it also provides a more even discharge of material. The design consists of an outer ribbon and a smaller diameter inner ribbon of the opposite hand while both inner and outer flights utilize the same pitch. The design moves the material back and forth, resulting in a trough mixing action.

Post Type Ribbon Screw

Post type ribbon screws are designed to have the least amount of surface for material to stick to, this is because the ribbon is attached by round bars (post), this design also makes it easier for replacing the ribbon. This type of ribbon screw also possesses excellent mixing qualities, though double flight ribbon screws have the best mixing capabilities out of the three design types.

Standard Ribbon Screw Conveyor Screw Sizes


Screw Diameter
Pipe Size
Pipe O.D.
Mounted Screw Right-Hand #
Mounted Screw Left-Hand #
Weight (LBS)
Flighting Only Right-Hand #
Flighting Only Left-Hand #
Weight Per Flight (LBS)
Flight Thickness (C)
Flight Width (D)
Nominal Pipe I.D.
O.D. of Pipe
Coupling Diameter (A)
6" 6R312 9' 10" 106-0144 116-0142 60 132-0142 137-0147 2.0
3/16" 1" 2" 2-3/8" 1-1/2"
9" 9R316 9' 10" 106-0219 116-0217 100 132-0217 137-0212 5.0 1/4" 1-1/2" 2" 2-3/8" 1-1/2"
10" 10R316 9' 10" 106-0284 116-0282 110 132-0282 137-0287 6.0 1/4" 1-1/2" 2" 2-3/8" 1-1/2"
12" 12R416 11' 10" 106-0359 116-0357 180 132-0357 137-0352 9.6 1/4" 2" 2-1/2" 2-7/8" 2"
12" 12R424 11' 10" 106-0425 116-0423 204 132-0423 137-0428 12.0 3/8" 2-1/2" 2-1/2" 2-7/8" 2"
12" 12R524 11' 9" 106-0490 116-0498 240 132-0498 137-0493 12.0 3/8" 2-1/2" 3" 3-1/2"
2-7/16"
14" 14R524 11' 9" 106-0565 116-0563 264 132-0563 137-0568 14.4 3/8" 2-1/2" 3" 3-1/2" 2-7/16"
14" 14R624 11' 9" 106-0631 116-0639 288 132-0597 137-0592 14.4 3/8" 2-1/2" 3-1/2" 4" 3"
16" 16R616 11' 9" 106-0706 116-0704 264 132-0639 137-0634 12.0 1/4 2-1/2" 3-1/2" 4" 3"
16" 16R624 11' 9" 106-0771 116-0779 324 132-0704 137-0709 18.0 3/8" 2-1/2" 3-1/2" 4" 3"
18" 18R624 11' 9" 106-0847 116-0845 360 132-0779 137-0774 24.6 3/8" 3" 3-1/2" 4" 3"
20" 20R724 11' 8" 106-0912 116-0910 408 132-0845 137-0840 28.2 3/8" 3" 4" 4-1/2" 3-7/16"
24" 24R724 11' 8" 106-0987 116-0985 468 132-0910 137-0915 37.2 3/8" 3" 4" 4-1/2" 3-7/16"


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10R316-132-0282-ribbon-screw-flighting 10" Ribbon Screw Flighting Only | 10R316 - Right

10R316-132-0282 Ribbon Screw Flighting

10R316-137-0287-ribbon-screw-flighting 10" Ribbon Screw Flighting Only | 10R316 - Left

10R316-137-0287 Ribbon Screw Flighting

12R416-132-0352-ribbon-screw-flighting 12" Ribbon Screw Flighting Only | 12R416 - Left

12R416-132-0352 Ribbon Screw Flighting

12R416-132-0357-ribbon-screw-flighting 12" Ribbon Screw Flighting Only | 12R416 - Right

12R416-132-0357 Ribbon Screw Flighting

12R424-132-0423-ribbon-conveyor-screw 12" Ribbon Screw Flighting Only | 12R424 - Right

12R424-132-0423 Ribbon Conveyor Screw

12R424-137-0428-ribbon-conveyor-screw 12" Ribbon Screw Flighting Only | 12R424 - Left

12R424-137-0428 Ribbon Conveyor Screw

   
 
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