These specially shaped separators are used in rectangular chutes or round pipes where flow speeds and depths exceed the capacity of plate magnets. Humps are recommended if the flow is vertical, or if the chute is more than 70 degrees. The angular shape of the housing conducts the powder or granular material directly against the plate magnets. The product stream strikes the first magnet, then changes direction to hit the second magnet. Thus slows and agitates the material, resulting in a better separation than with convention chute separators. If product flow is light, one magnet in the half hump model may provide sufficient separation.