No need to worry about finding a compatible trough for your vibrator—these feeders come ready to use. With no mechanical parts to wear out or lubricate, downtime is rare. These feeders use electromagnets to shake material down the trough, making them ideal for moving substances that could cake or stick. For example, they’re often used to transfer powders into mixing tanks and add binders to foundry sand for metal casting. Compared to most vibrators, these feeders are quiet, too. At around 50 dBA, they generate about the same amount of noise as normal conversation.

Required Vibrator Controllers—Adjust throughput from a steady stream to a trickle. If you want to synchronize multiple feeders to run at the same speed, you can connect them to the same controller as long as the total current draw is less than 5 amps. With a durable polycarbonate housing, these controllers won’t dent or crack from occasional bumps. They’re also rated NEMA 4X for protection from dust, dirt, and washdowns.

Move one of these vibrators to the source of your flow problem. They are lightweight and have a magnetic mount, so they can be attached to steel and iron containers. Use an adhesive-back metal pad (sold separately) to attach it to nonferrous containers. These vibrators are often used to shake powders, grains, and small parts to maintain a steady flow through your bin. Every 10 pounds of dry material requires one pound of force to move it. If your bin has 200 pounds of dry material, you need a vibrator with at least 20 pounds of force.