Chain Conveyor Systems
Chain conveyors carry the heaviest of loads at a high speed.
What is a Chain Conveyor
Also known as pallet conveyors or tow conveyors, chain conveyor belts transport heavy products like pallets, skids, and machine equipment. Their consistent handling of large capacities at different speeds is useful for industries like:
- Warehouse or shipping/distribution center
- Order fulfillment
- Food and Beverage
How a Chain Conveyor Works
A power on/off button or switch triggers a series of gears which a chain (metal or plastic) locks in place moving the conveyor in a forward or backward direction. There are several types of chain conveyor designs and materials used to make them.
Plastic Conveyor Chain
Conveyor chains made from plastic are much lighter than their metal counterparts. This allows them to run more efficiently because they weigh less and put less strain on the motors moving the chains. Businesses ranging from electronics to food have increased productivity using plastic conveyor chains.
Chain Disc Conveyor Designs
Chain disc conveyors work well when moving dry bulk solids.. They’re easy to use, maintain, and repair when needed. They also use an innovative, enclosed design to keep materials safe.
Drag Chain Conveyor Systems
A drag conveyor is made up of wooden or steel plates which connect to a continuous metal chain. The plates are “dragged” through a rectangular, trough-like space to move the chain.
Are chains lubricated in a drag conveyor?
Yes. Drag conveyors often use welded steel chains, which need routine lubrication to reduce wear. Performing routine maintenance like this will extend the drag conveyor’s lifespan.
Can Conveyor Chains Snap?
Yes. Chain failure can be categorized into three different groups.
- Tensile: This happens when the chain holds too much pressure. As a result, it stretches out and malfunctions.
- Fatigue: Using chain conveyor systems as intended, without extra pressures, can lead to fatigue. Over time, microscopic cracks develop on the link plates and side bars. These cracks get larger until the chain snaps.
- Wear: Friction between the pin and the bushing causes the chain to elongate and stretch out. It no longer grips the gears properly and causes the entire belt to malfunction.
Do Chains in Conveyors Need to Roll or Slide?
Conveyor chains can either roll or slide. Both are great mechanical options for a horizontal, straight route. When the chain slides, it rests on the edge of its plates. When rolling, the chain rests on the rollers. Particular uses will dictate implementation.