Types of Conveyor Chains Used in Wood Processing Industry
The wood processing industry relies heavily on efficient material handling systems. From moving raw logs to finished boards, every stage of production depends on smooth and reliable conveying equipment.
Unlike belt conveyors, which can slip or wear quickly in dusty and high-load conditions, chain conveyors are designed to handle the rough and heavy-duty demands of sawmills, plywood plants, and lumber yards.
Conveyor Chains are Essential in Wood Processing
Wood processing involves several steps, including cutting, peeling, drying, sorting, and stacking. Each of these steps requires reliable conveying systems to ensure continuous production flow. Conveyor chains provide the following key benefits:
· High load capacity: Can handle heavy logs, boards, and wood chips.
· Durability: Resistant to abrasion, heat, and moisture.
· Precision conveying: Maintain stable motion for accurate cutting and sorting.
· Flexibility: Suitable for horizontal, inclined, or vertical conveying.
Because wood materials vary in size, texture, and moisture content, the type of conveyor chain used must match the specific operating conditions. Choosing the right one can greatly improve productivity and reduce downtime.
Conveyor Chains Used in Wood Processing Industry
Steel Pintle Chains are among the most popular conveyor chains in the wood industry. They have an open-barrel design that allows sawdust and debris to fall through easily, preventing jamming or buildup.
Commonly used in debarkers, wood chip conveyors, sawdust removal systems, and log feeders.
· Typical Models:55,57,77,88,C188,C210.
Welded Steel Chains are built for heavy-duty applications. They feature welded sidebars for maximum strength and are designed to withstand shock loads and harsh environments.
Common in log conveyors, debarking systems, lumber stackers, and chip reclaimers.
· Popular Types:WH78,WH82,WH124,WH132,WH157.
Double Pitch Chains have longer pitch lengths, reducing weight and cost while maintaining smooth operation. They are ideal for medium-duty applications and long conveying distances.
Used in plywood conveyors, veneer feeders, and automated board lines.
· Common Models:C2040,C2050,C2060H,C2080H.
Conveyor Chain with Attachments
For more complex conveying systems, chains with attachments are used. These attachments(likeslats, flights, or hooks)are welded or bolted onto the chain to push, pull, or position materials.
Used in sorting lines, board alignment systems, and panel transfer conveyors.
· Attachment Types:A1,K1,F4,G1,W1.
Drag Chain/Scraper Chain
Drag chains(also known as scraper chains)are designed to move bulk materials such as bark, sawdust, or chips along the bottom of a trough.
Used in chip removal systems, bark conveyors, and waste handling units.
81X Lumber Conveyor Chain is designed to handle heavy loads of timber, lumber boards, and logs with excellent strength and wear resistance.
· 81X,81XH,81XHH,81X conveyor chain with attachments(A1,K1,F2,etc.) These variants differ mainly in sidebar thickness and pin diameter, offering options for light, medium, or heavy-duty use.
Sharp Top Chain
Sharp Top Chains are specially designed conveyor chains used for positive gripping and precise movement of lumber during cutting, sorting, and feeding operations. They feature sharp, hardened steel teeth that bite into the wood surface, preventing slippage and ensuring accurate positioning.
Sharp Top Chains with carbon steel or hardened alloy teeth, available in 81X or ANSI base sizes, depending on equipment design.
Special Conveyor Chains
Beyond standard models, certain wood processing systems use special conveyor chains for unique purposes:
· Log Handling Chains: Equipped with spikes or lugs to grip logs during transport.
· Offset Sidebar Chains: Designed for heavy loads and shock absorption.
· Transfer Chains: Used for lateral or cross conveying of lumber or panels.
Customized for specific machinery and process requirements.
How to Choose the Right Conveyor Chain
Selecting the right conveyor chain requires understanding your specific process and environment. Consider these factors:
1. Load and Speed: Heavier loads require welded steel or offset sidebar chains.
2. Material Type: Logs, chips, or boards each demand different chain designs.
3. Environment: Choose stainless steel for moisture or high-temperature conditions.
4. Maintenance Needs: Open designs like pintle chains are easier to clean.
5. Chain Pitch and Attachments: Match pitch size and attachment type to sprockets and conveyor design.
Tip: Always consult with technicians about material strength, heat treatment, and lubrication requirements before purchasing.
Maintenance Tips for Longer Service Life
Proper maintenance can significantly extend your conveyor chain's lifespan.
✔ Lubrication: Apply suitable oil or grease regularly to reduce friction.
✔ Inspection: Check for wear, elongation, and corrosion.
✔ Alignment: Ensure sprockets and shafts are properly aligned.
✔ Replacement: Replace worn sprockets when changing chains.
✔ Cleaning: Remove sawdust or chips that may accumulate around the chain.
With regular maintenance, a high-quality chain can operate efficiently for years, reducing downtime and improving overall productivity.
Choose CTS® Conveyor Chain
At CTS, we specialize in manufacturing industrial and agricultural conveyor chains. If you are looking for durable and efficient conveyor chains for your wood processing line, CTS provides professional solutions and technical support to keep your production running smoothly.
