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

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Screw Diameter
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Pipe Size
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Pipe O.D.
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Mounted Screw Right-Hand #
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Mounted Screw Left-Hand #
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Weight (LBS)
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Flighting Only Right-Hand #
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Flighting Only Left-Hand #
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Weight Per Flight (LBS)
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Flight Thickness (C)
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Flight Width (D)
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Nominal Pipe I.D.
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O.D. of Pipe
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Coupling Diameter (A)
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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" |
Frequently Asked Questions
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If your order is less than $300, no problem! Please give us a call at 407-347-3519 or email Sales@usarollerchain.com, and we will be happy to assist you!
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USA Roller Chain utilizes an extensive network of vendors and warehouses to ensure you get your items quickly! Our primary roller chain warehouse is located in Clermont, FL, but we have warehouses located all across the United States. Your order will be shipped from the closest warehouse to you that has your requested product in stock. This speeds up transit times and saves you money on shipping! If you have any questions about where an item will ship from, please CONTACT US
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In-stock items are typically shipped out in 1-3 business days.Made-to-order item lead times vary from 1-2 days up to 14-20+ weeks, depending on the product. If you need your items urgently, please let us know, and we will do our best to meet your required delivery date! If you have any questions, please CONTACT US
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If you are having an issue with your order, please CONTACT US as soon as possible so we can resolve it for you.
Most in-stock items can be returned within 30 days of the shipment date. MTO or Custom orders are not eligible for a return or refund. For a detailed explanation of our return policies, please click here.
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Absolutely! We may be called "USA Roller Chain", but we ship worldwide! Please CONTACT US for Export/International quotes or orders.