Universal Apron and Wobbler Feeders

Apron Feeders
The Universal Apron Feeders consist of a continuous steel belt that is made up of overlapping flights or pans that are connect to and supported by steel chains. The underside of these flights are reinforced and designed to withstand impact. Apron Feeders provide a positive material flow and with variable speed drives can provide close control of the feed rate to the crusher. Apron Feeders are well suited for applications that require moving a high tonnage of coarse material where the impact loads are too severe for other types of feeders.

Universal Tractor Chain Apron Feeders (sometimes referred to as Dozer Feeders and NICO Feeders) are of extremely rugged construction. Designed for the demanding conditions seen for material handling applications in mineral/ore, coal, and aggregate mining and material processing operations. Universal manufactures six model chain sizes FL4, FD4, FD7, FD9, FD10, and FD11. The chain pull and application determines which chain size is required for the Apron Feeder. There are fifteen standard widths and an infinite range of lengths. Each Apron Feeder is custom designed to meet a wide range of tonnage and application requirements.
For light duty applications they also offer Engineered Chain Apron Feeders (sometimes referred to as Texas Feeders).

Wobbler Feeder/Scalper
The Universal Wobbler Feeder/Scalper provides two functions, feeding oversized material at a controlled rate and also scalping out the fines from the fed material. This is accomplished by football shaped elliptical bars that are timed with a continuous triple strand roller chain drive and timed bar sprockets. Each elliptical bar is timed 90 degrees apart, one bar tip up and the next bar rotated with the tip in a horizontal position. All bars rotate at the same rate of speed and this motion tumbles and moves the loaded material along the bars until it is discharged off the Wobbler. Each bar is maintained with a constant gap between them, which allows the fines to pass through the bar gaps providing the undersized scalped material.

Wobbler's are self-cleaning, and can handle wet sticky material and are very good with clay. Cement plant’s use wobblers to screen clay from the rock. Shot material can be dumped directly onto the wobbler bed of material or fed with an Apron Feeder. With higher capacities and larger material lump sizes they recommend using the Apron Feeder and Wobbler combination to reduce the impacting and to increase the scalping area. Wobblers can actually increase your systems output by scalping out material fines and letting your crusher handle only the material that needs to be crushed.

Universal manufactures four models, each with different standard widths and number of bar combinations. Each Wobbler is custom designed to meet a wide range of tonnage and application requirements. Designed to scalp material from 1/2” to 7-1/2” lump size and tonnage go up to 2,500 TPH.

To learn more about Apron Feeders and Wobbler Feeder / Scalpers go to the REQUEST MORE INFO button above or click on the DIRECT CONTACT button to reach Universal Engineering directly.