How Hoppers Can Improve Performance of Feeders & Screeners

By Jack Steinbuch

Hoppers can aid in the performance of material handling equipment, plus provide health and safety benefits for your workforce. To begin, we will review the advantages hoppers can provide to improve the performance of feeders and screeners for bulk loading applications.

RFM electromechanical hopper feeder Side loading
Hopper

Okay, so what is a hopper?

Hoppers can be stationary with steeply sloping walls to allow free-flowing material to discharge onto the feed tray. Due to their steep walls, these hoppers can have a high dump height, depending on the volume. For lower dump heights and/or poor flowing materials, a vibrating hopper is a great solution. The hopper is attached to the vibrating body and the vibrators are then upsized to compensate for the increase in vibrating weight. The material is fed from the hopper onto the equipment.

How can a hopper improve the performance of your feeder?

Cleveland Vibrator Company EMF-Electromechanical Feeder Model
EMF Electromechanical Feeder

Let us start with vibrating feeders. There are several applications where the material is fed manually or by a bulk loading dumper. This can lead to overloading the tray at the feed end and spillage. Utilizing a hopper provides the operator with a much larger target, so there is a much lower chance for spillage. We also provide a gate at the discharge end of the hopper to control material flow onto the feed end of the tray.

Additionally, the hopper takes the brunt of the dump, which saves wear & tear on the feeder tray. Further, we can provide lining for the hopper and feeder tray with abrasion-resistant material. This lining can provide the added benefit of noise reduction.

Before we continue, if you would like to learn more about how vibratory feeders work, our vibration experts provided this great tutorial!

Comparatively, how can a hopper improve the performance of your screener?

Cleveland-Vibrator-EMS-Electromechanical-Screener-web
Electromechanical Vibratory Screener

While the above also applies to vibratory screeners, they can result in even more benefits than feeders when provided with a hopper for bulk loading. Material flow to a screener is critical to its efficiency. Any excessive material flow depth or irregular feeding can negatively impact the performance of a screener. A hopper can provide an even, steady material flow to the screen deck.

How can a hopper provide health benefits to your employees?

The health benefits of a hopper include reduced wear and tear to operators that manually dump material onto feeders or screeners. Consequently, this type of labor can cause serious health issues to backs, shoulders, arms, and even lungs & eyes if the material is dusty.

Additionally, using a hopper puts the operator further from the vibratory equipment, reducing their noise exposure. Safety is improved as the operator is no longer exposed to the risks associated with manually feeding vibratory equipment.

You now have several good reasons, including improved performance and health and safety benefits, to consider utilizing a hopper to load your vibratory feeders or screeners. As always, we recommend that you review your application with a vibration expert. They will be able to guide you to the hopper design that best fits your specific application.


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