-
Operated in the USA
-
Unmatched Quality
-
Fast Shipping
-
Expert Support
High-Speed Double Length Infeed & Scanning Chains
Our Double Length Infeed/Scanning Chains, also known as High-Speed DLI Chains, are designed for demanding wood-processing systems involving log infeed, scanning, positioning, and auto-rotation.
This collection includes Connexus Industries VC-series chains and the P35B100A chain in standard and LR configurations. LR models include a grease fitting in every rivet for direct lubrication access during scheduled maintenance.
(P35B100A, VC100 & VC100LR)
High-Speed Double Length Infeed & Scanning Chain Dimensions
The engineering drawing below identifies the primary dimensions used throughout this product family. Refer to the specification chart and individual product pages for complete product details.
Double Length Infeed/Scanning Chain Specification Chart
Compare pitch, published ultimate strength, dimensions, and configuration for all 11 chains in this collection. LR versions share the primary dimensions of their corresponding standard chains while adding a grease fitting in every rivet.
| Chain Number | Pitch | Ultimate Strength | D | W | T | A | H | B | F | Configuration |
|---|---|---|---|---|---|---|---|---|---|---|
| VC50 | 3.067" | 110,000 lbs | 0.75" | 1.56" | 0.38" | 2.31" | 2.25" | 1.62" | 3.94" | Standard |
| VC50LR | 3.067" | 110,000 lbs | 0.75" | 1.56" | 0.38" | 2.31" | 2.25" | 1.62" | 3.94" | LR greaseable rivets |
| P35B100A | 3.937" | 68,000 lbs | 0.87" | 1.21" | 0.39" | N/A | 2.36" | 1.77" | 2.90" | Straight sidebar |
| VC100 | 3.937" | 100,000 lbs | 0.94" | 1.12" | 0.50" | N/A | 2.50" | 1.78" | 3.84" | Straight sidebar |
| VC100LR | 3.937" | 100,000 lbs | 0.94" | 1.12" | 0.50" | N/A | 2.50" | 1.78" | 3.84" | LR / straight sidebar |
| VC200 | 4.073" | 100,000 lbs | 0.94" | 1.09" | 0.50" | 2.13" | 2.50" | 1.78" | 3.70" | Standard |
| VC200LR | 4.073" | 100,000 lbs | 0.94" | 1.09" | 0.50" | 2.13" | 2.50" | 1.78" | 3.70" | LR greaseable rivets |
| VC205 | 4.073" | 100,000 lbs | 0.94" | 2.12" | 0.50" | 3.12" | 2.50" | 1.78" | 4.80" | Standard |
| VC205LR | 4.073" | 100,000 lbs | 0.94" | 2.12" | 0.50" | 3.12" | 2.50" | 1.78" | 4.80" | LR greaseable rivets |
| VC124N | 4.073" | 100,000 lbs | 0.94" | 1.25" | 0.50" | 2.25" | 2.50" | 1.75" | 3.84" | Standard |
| VC124N-LR | 4.073" | 100,000 lbs | 0.94" | 1.25" | 0.50" | 2.25" | 2.50" | 1.75" | 3.84" | LR greaseable rivets |
All dimensional values are in inches. Refer to the engineering drawing above for dimension locations.
High-Speed DLI Chain Features
High-Speed Infeed Applications
Designed for high-speed infeed and scanning systems used to move, position, and process logs through compatible wood-processing equipment.
Log Scanning & Auto-Rotation
Built for equipment involving accurate log scanning and auto-rotation where controlled chain movement and repeatable positioning are required.
Accurate Chain Guidance
Intended for use with accurate guiding systems, properly matched guide rails, compatible sprockets, and related conveyor components.
Heat-Treated Components
Custom heat-treated components and treated surfaces support durability and wear resistance in demanding wood-processing environments.
LR Greaseable Rivets
Every LR chain has a grease fitting in each rivet, allowing lubricant to be applied directly at individual rivet locations during maintenance.
Custom Cut-to-Length Supply
These specialty chains are supplied cut to the length required for your equipment. Contact our team for pricing and availability.
Standard and LR Double Length Infeed Chains
Choose between standard High-Speed DLI chains and LR configurations with grease fittings in every rivet. Select products also use straight sidebars for compatible guiding arrangements.
Standard DLI Chains
Standard configurations for high-speed log infeed, scanning, positioning, and related wood-processing systems.
- VC50 Double Length Infeed/Scanning Chain
- P35B100A Straight-Sidebar Chain
- VC100 Straight-Sidebar Chain
- VC200 Double Length Infeed/Scanning Chain
- VC205 Double Length Infeed/Scanning Chain
- VC124N Double Length Infeed/Scanning Chain
LR Greaseable-Rivet Chains
LR configurations provide direct lubrication access through a grease fitting installed in every rivet.
- VC50LR Greaseable-Rivet Chain
- VC100LR Straight-Sidebar Greaseable-Rivet Chain
- VC200LR Greaseable-Rivet Chain
- VC205LR Greaseable-Rivet Chain
- VC124N-LR Greaseable-Rivet Chain
What Does “LR” Mean?
Products carrying the LR designation are equipped with a grease fitting in every rivet. This provides direct lubrication access at each rivet location during scheduled maintenance. LR and standard versions may share the same primary dimensions and strength specifications, but they remain separate chain configurations.
Wood-Processing and Log-Handling Applications
High-Speed Double Length Infeed Chains are used in specialized sawmill and wood-processing conveyor systems where logs must be transported, scanned, positioned, or rotated accurately. Typical system functions include log infeed, high-speed scanning, auto-rotation, positioning, and controlled movement through compatible processing equipment.
Proper chain selection depends on equipment design, chain dimensions, rivet configuration, sprocket design, guide-rail arrangement, and the required cut length. Review the individual product specifications or contact our chain specialists for help identifying the correct chain.
Double Length Infeed Chain Frequently Asked Questions
What is a Double Length Infeed Chain?
A Double Length Infeed Chain is a specialty conveyor chain used in high-speed log infeed, scanning, positioning, and auto-rotation systems found in sawmills and wood-processing facilities.
What does LR mean in a chain number?
LR identifies a chain equipped with a grease fitting in every rivet. This allows lubricant to be applied directly at individual rivet locations during scheduled maintenance.
Are the standard and LR chains interchangeable?
Standard and LR versions may share the same primary dimensions and ultimate-strength specifications, but they are separate configurations. Compatibility should be confirmed using the chain number, dimensions, equipment design, sprockets, and guide-rail arrangement.
Are these chains supplied in standard lengths?
These specialty chains are supplied cut to the requested length. Contact our team with the chain number, required length, and equipment information for pricing and availability.
How do I identify the correct replacement chain?
Start with the existing chain number when available. You can also compare pitch, dimensions D, W, T, A, H, B, and F, sidebar configuration, and whether the chain uses standard or LR greaseable rivets.
Need Help Selecting the Correct High-Speed DLI Chain?
Product is supplied cut to your requested length. Contact us for a custom quote!
Frequently Asked Questions
-
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!
-
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
-
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
-
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.
-
Absolutely! We may be called "USA Roller Chain", but we ship worldwide! Please CONTACT US for Export/International quotes or orders.