The Big O hog feeder replacement base is a polyethylene hopper and trough assembly designed for compatible Sioux Steel Big O outdoor hog feeders. It allows producers to replace the lower feeding section of an existing feeder without automatically replacing the entire upper feed-storage structure.
The assembly includes a poly trough base, integrated poly skids, steel supports and a side-mounted feed-flow adjustment. Its on-demand feeding mechanism uses bump bars that pigs operate to dispense feed, helping limit the amount of feed sitting exposed in the trough between feeding periods.
This product is the replacement base and hopper section only, not a complete hog feeder. For complete systems, see the Big O outdoor hog feeder or browse Barn World's hog feeder collection.
Big O Hog Feeder Base Specifications
| Replacement Hopper and Trough Specifications | |
|---|---|
| Product Type | Replacement hog feeder base and hopper section |
| Compatible Feeder Family | Sioux Steel Big O hog feeders; confirm exact model compatibility |
| Listed Feed Capacity | 15 bushels |
| Overall Height | 37⅜ inches |
| Hopper Diameter | 56 inches |
| Trough Diameter | 50 inches |
| Listed Weight | 247 pounds |
| Base Material | Polyethylene |
| Supporting Components | Steel supports |
| Skids | Poly skids included |
| Feed Delivery | On-demand bump-bar mechanism |
| Feed Adjustment | Side-mounted feed-flow adjustment |
| Shipping | Pallet freight from South Dakota |
The 15-bushel capacity is the manufacturer's listed volume reference. Actual feed weight depends on the density and characteristics of the ration. Confirm the selected feeder configuration before estimating how much feed the complete system will hold.
What Is Included With the Replacement Base?
The original product listing identifies the following components as part of the replacement assembly:
- Polyethylene lower hopper section
- Circular feeding trough
- Poly skids
- Side-mounted feed-flow adjustment
- Steel supports
The upper storage structure, roof and other components of a complete hog feeder should not be assumed to be included with this replacement base.
If you are replacing a damaged base while retaining the original feeder's upper assembly, verify the attachment dimensions, hardware and component compatibility before ordering.
How the On-Demand Hog Feeding System Works
The Big O feeder uses a ration-style, on-demand feeding arrangement rather than relying entirely on unrestricted gravity flow into the trough.
Pigs interact with the bump-bar mechanism to release feed into the feeding area. This helps regulate feed presentation and can reduce the amount of feed that remains exposed when animals are not actively eating.
In an unrestricted gravity-fed system, feed may continue entering the trough as space becomes available. If the feed accumulates faster than animals consume it, the excess can be pushed out, contaminated or left exposed to moisture.
The on-demand mechanism helps manage these conditions, although actual performance depends on correct adjustment, feed characteristics and animal behavior.
Why Feed-Flow Adjustment Matters
The side-mounted adjustment allows operators to regulate feed delivery according to the feeding system's instructions.
Too much feed entering the trough can contribute to spillage and unnecessary exposure. Too little feed may restrict access or require animals to work harder than intended to obtain their ration.
Check the adjustment when changing feed formulations, particle sizes or animal groups. Observe actual feeding behavior rather than assuming one setting will work for every ration.
Circular Feeding Access for Groups of Hogs
The round trough allows pigs to approach from multiple directions. This provides feeding access around the circumference rather than concentrating all animals along one short feeding edge.
For group-fed hogs, distributing access around a circular feeder may help reduce congestion and allow more animals to feed at the same time.
However, the number of pigs that can feed comfortably depends on their size, the complete feeder configuration and the surrounding pen layout.
Reducing Competition at Feeding Time
Dominant pigs may occupy preferred feeding positions or displace smaller animals. A circular trough can provide additional approach opportunities, but it does not eliminate competition by itself.
Observe the group during feeding. If certain pigs are repeatedly prevented from reaching the trough, evaluate stocking density, feeder access and whether additional feeding stations are needed.
Proper feeder management helps support more consistent feed access across the group.
Polyethylene Construction for Hog Feeding Environments
The replacement base uses polyethylene for the lower hopper and trough section.
Unlike unprotected steel, polyethylene does not develop red rust. It is also resistant to many of the moisture-related conditions commonly encountered around livestock feeding equipment.
The original listing emphasizes resistance to corrosion and deterioration in hog confinement environments.
Polyethylene still requires inspection. Impact damage, abrasion, aging and improper handling can affect the service life of the assembly.
Steel Supports and Poly Skids
The included steel supports provide structural elements within the replacement assembly, while the poly skids help support the feeder at ground level.
Inspect these components for damage or wear, particularly when moving the feeder or placing it on uneven ground.
Do not assume the skids make the assembled feeder suitable for dragging while loaded. Follow the manufacturer's handling and relocation instructions.
Replacing a Worn Hog Feeder Base
Replacing the lower feeding assembly can be a practical alternative when the upper storage structure remains serviceable and compatible.
Before removing the old base, identify the existing feeder model and examine how the upper components attach.
Check the following:
- Confirm the feeder model. Verify that the existing unit belongs to the compatible Big O feeder family.
- Measure the attachment area. Compare the existing connection dimensions with the replacement assembly.
- Inspect reusable components. Check the upper structure, roof, fasteners and other parts for damage.
- Identify required hardware. Determine which fasteners and connecting components can be reused and which must be replaced.
- Plan safe handling. The replacement base has a listed weight of 247 pounds and requires suitable equipment and personnel.
- Follow assembly instructions. Install the replacement components according to the manufacturer's requirements.
- Test feed delivery. Check the bump-bar mechanism and feed-flow adjustment before returning the feeder to normal use.
Do not attempt to support or lift a loaded upper hopper without appropriate equipment and procedures.
Compatibility With Existing Big O Feeders
The replacement base is intended for compatible Sioux Steel Big O feeder configurations. It should not be treated as a universal replacement for every circular hog feeder.
The listed hopper diameter is 56 inches, and the trough diameter is 50 inches. These dimensions help identify the product but do not establish compatibility with every upper storage assembly.
Attachment design, fastener locations and feeder generation may also matter.
Before ordering, provide Barn World with the existing feeder model, approximate dimensions and any available identification information.
Placement and Operation in Hog Facilities
Big O feeding systems are intended for livestock feeding applications where multiple pigs need access to stored feed.
Choose a stable, reasonably level location that permits animals to approach the trough without becoming trapped against walls, gates or other equipment.
Keep the surrounding area as dry and well drained as practical. Mud, manure and standing water can create maintenance problems and increase the likelihood of feed contamination.
Outdoor Feeding Considerations
The complete Big O outdoor hog feeder uses an upper storage structure and protective roof designed to help shield feed from weather.
The roof is part of the complete feeder configuration and is not identified as included with this replacement base.
When rebuilding an outdoor feeder, inspect the existing roof, upper storage components and connections to ensure the complete assembly continues to protect the stored feed appropriately.
Maintaining the On-Demand Feeding Mechanism
Routine maintenance helps keep the feeder dispensing feed consistently.
- Inspect bump bars for free movement and damage.
- Check the feed-flow adjustment for proper operation.
- Remove spoiled, damp or contaminated feed.
- Examine the trough for cracks, wear and accumulated debris.
- Inspect the steel supports and mounting connections.
- Keep the surrounding feeding area clean and reasonably dry.
- Observe pigs during feeding to identify restricted access or excessive spillage.
Feed bridging or irregular delivery may occur with certain feed types or moisture conditions. Follow the manufacturer's recommendations for the feeding mechanism and ration characteristics.
Managing Feed Waste and Operating Costs
Feed is a significant operating expense in hog production. Reducing unnecessary feed loss can improve the efficiency of a feeding program.
The Big O on-demand mechanism is designed to help limit feed exposure by dispensing material in response to animal activity.
Potential advantages of a correctly maintained system include less feed sitting unused in the trough, fewer opportunities for animals to push out excess feed and more controlled feed presentation.
Actual savings depend on ration cost, feeder adjustment, animal behavior and existing management practices. The replacement base does not guarantee a specific feed conversion ratio or reduction in feed waste.
Replacement Base or Complete Hog Feeder?
The correct purchase depends on the condition of your existing equipment.
| Replacement Base | Complete Feeder |
|---|---|
| Appropriate when compatible upper components remain usable. | Appropriate when the entire feeding system is needed. |
| Includes the listed lower hopper, trough and support components. | Includes the upper feed-storage arrangement and other components specified for the selected complete model. |
| Requires confirmation of existing feeder compatibility. | Requires selection of the appropriate capacity and complete configuration. |
For a complete outdoor unit, review the Big O hog feeder. For other feeding designs and capacities, visit the hog feeder collection.
Freight Shipping and Delivery
This replacement base ships on a pallet from South Dakota. Because of its size and listed 247-pound weight, freight arrangements should be confirmed before ordering.
When requesting a delivered quote, provide:
- Delivery ZIP code
- Quantity required
- Commercial or residential delivery location
- Available unloading equipment
- Any delivery-access restrictions
Barn World can provide a shipping quote based on the delivery destination and current freight requirements.
Frequently Asked Questions
Is this a complete Big O hog feeder?
No. This listing is for the replacement lower base and hopper section only. It is not the complete feeder with upper storage components and roof.
What is the capacity of the replacement base?
The original specifications list a 15-bushel capacity. Actual feed weight depends on the density of the ration.
What is the diameter of the hopper?
The listed hopper diameter is 56 inches, and the trough diameter is 50 inches.
How much does the replacement base weigh?
The original listing specifies 247 pounds.
Does the base include skids?
Yes. Poly skids are identified among the included replacement-base components.
How does the on-demand feeding mechanism work?
Pigs operate bump bars that dispense feed into the trough. The mechanism is intended to regulate feed delivery rather than allowing unrestricted feed accumulation.
Can the feed flow be adjusted?
Yes. The original listing identifies a side-mounted feed-flow adjustment.
Will this base fit any circular hog feeder?
No. It is designed for compatible Big O feeder configurations. Confirm the existing feeder model and attachment requirements before ordering.
Does polyethylene construction eliminate maintenance?
No. Polyethylene does not rust like steel, but the trough, feeding mechanism, supports and connections still require regular inspection and cleaning.
Where does the base ship from?
The original product listing states that the base ships by pallet freight from South Dakota.
Order a Big O Hog Feeder Replacement Base
The Big O replacement base provides a way to renew the lower feeding assembly of a compatible outdoor hog feeder while retaining usable upper components.
Its polyethylene trough, on-demand bump-bar mechanism, adjustable feed flow and included skids are designed for practical group-feeding applications.
Before ordering, confirm your existing feeder model and attachment requirements. Contact Barn World with the delivery ZIP code and any compatibility questions to request a current freight quote.
For complete feeders and additional equipment, explore Barn World's hog feeders.