Feeding Systems
Bulk Feed Tanks
Automated Production Systems (AP)
AP's Bulk Feed Tanks and Flex-Flo™ perfectly illustrate the attention to detail that quality demands. John Ernewein Limited is proud to carry this line of high-quality corrugated, galvanized steel storage tanks. We carry the smallest feed tanks to the massive 100-feet/31 meters tall, 15,000+ ton capacity commercial giants.
Every component is made from the finest raw materials available. Every stage of the forming process, from corrugation to die-cut shaping to precision finishing, is done under one roof and under the manufacturer's direct control and supervision.
Ernewein can also provide all the equipment and accessories necessary to load, unload and condition your feed.
Bin Roof
There is a choice of a 30º or 40º bin roof to adapt to any application. Roof panels are precision manufactured using die-form tooling to provide consistent quality. Both 30º and 40º roofs feature reinforcing ribs at each roof seam for added strength and rigidity. 40º roofs provide additional strength and capacity.

Side Ladders
A unique, non-interfering safety rail and sectional, fully die-formed side ladder with dimpled, non-skid rungs provide solid, comfortable access to the feed tank.
Sidewall Strength & Durability
55,000 PSI (379 mpa) high tensile steel sidewall sheets, with a G-90 commercial galvanized coating provide outstanding strength and durability. The 2-2/3” (68 mm) wide by ½” (13 mm) deep corrugation and precision formed panel curvature, tooled and shaped in-house, make for dependable and efficient assembly.
Auto-Lock
AP's patented “Auto-Lock” lid system allows the bin to be opened, closed and locked from the ground. The lid swings open a full 180º eliminating interference with fill augers.
Factory Formed Fill Kits
Another AP exclusive is the pre-punched, extruded lip roof panels provided for the optional pneumatic fill-kit (eliminating the inconvenience and difficulty of filed-cutting the openings for the fill and exhaust tubes, and insuring secure, moisture-proof seals).
Hopper Bottoms
Tank hoppers are available in three slopes: 45º for dry, free flowing grains and 60º or 67º for harder flowing feed.
Like the roof panels, hopper panels are die-formed with rounded corners and down-turned sealing edges for safety and a weather-tight fit. In addition, assembly with rounded, truss-head bolts reduces “bridging” of contents on inner surfaces.
By fitting snugly into the offset outward throat of the hopper, the heavy gauge galvanized steel collar provides a perfectly smooth internal transition for optimum flow, as well as a sure-fit adapter for all 16” (406 mm) unloading accessories. Hoppers are available at no additional cost with an optional 22” (559 mm) opening which adapts to the AP rotary unloader…or the larger, heavy-duty 22” (559 mm) metal boot.
Exclusive to AP hoppers, the “eave”, the upper edge where the hopper is joined to the sidewall, is specially die-formed to conform to the shape of the sidewall corrugation. Most other manufacturers depend on crimping and bolt pressure to force the connection, which produces corrosion-prone distortion and “dimpling” of the sidewall. The die-formed eave provides a much tighter seal and smoother flow of material.
Drip Lip
The drip lip water deflection system is a one-of-a-kind, roll-formed bottom sheet edge. It forces water away from the hopper and lower boot area, giving complete weather protection without a loss in capacity.
E-Z Kleenout Panel
The optional E-Z Kleenout hopper panel allow for convenient and thorough ground inspection and cleaning. The panel can be easily unbolted and removed in a matter of minutes from the exterior of the bin. A weather seal gasket protects the bin contents from the elements. The E-Z Kleenout panel can be easily adapted to existing feed bins.
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