While gravity conveyors are great for items of similar sizes and weights, powered conveyors allow items of all dimensions to be moved with a positive flow, meaning that items won’t smash together at the end of the line. Here’s a rundown on the different types of powered conveyors.
Slide Bed Belt Conveyor: The most popular powered conveyor. It has a solid steel bed and is relatively simple to run and install. Assembly and general transport are it’s most common uses. Slide bed belt conveyors don’t work well with heavy live loads because of the friction between the bed and belt.
Roller Bed Belt Conveyor: The roller bed belt conveyor has a belt that goes over rollers instead of a steel bed. This reduces friction and allows for heavier loads.
Live Roller Conveyor: Live roller conveyors are available in two styles, belt driven or chain driven. These are useful for applications where boxes must be pushed across the conveyor for unloading. Pushing a product across a belt conveyor causes tracking problems. Accumulation is possible on a live roller conveyor but only for a very brief time.
Accumulating Conveyor: The same basic construction as a live roller conveyor except this system allows for accumulation. If your operation must do sorting, strapping, or staging on the conveyor line this is the conveyor for you. There are two types of accumulating conveyors; zero pressure and minimum pressure. Minimum pressure conveyors applies some back pressure to the packages but usually not enough to damage them. A zero pressure conveyor uses rollers that sense accumulation and reduces accumulation from the zone preceding the sensing roller. Proper setup is critical for zero pressure conveyors. Any reputable conveyor distributor should be able to help you out.