8 Pieces of Equipment for Building a Mobile Hay Feeder

Hauling square bales across muddy winter pastures gets exhausting fast, and stationary feeding areas quickly turn into trampled mud pits. Building a custom mobile hay feeder keeps forage off the damp ground, protects pasture turf through easy rotation, and saves money compared to pre-assembled farm store units. With a few key fabrication tools and durable materials, welding together a towable feeder is a practical weekend project for any small-scale homestead.

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What to Consider Before Building a Hay Feeder

Building a mobile hay feeder requires balancing weight, structural strength, and animal behavior. High-traffic mud, aggressive pushing from hungry livestock, and constant exposure to wet manure will rapidly degrade poorly planned equipment.

Before purchasing materials, calculate the maximum load capacity needed for your hay setup. Standard small square bales weigh between 40 and 60 pounds, while large round bales can exceed 800 pounds. Choosing whether to tow the unit with a riding lawnmower, ATV, or compact tractor dictates overall size, wheel selection, and frame weight.

Steel Tubing – Speedline Square Steel Tube

Square steel tubing serves as the main structural backbone for a mobile feeder chassis. It provides rigid corner-to-corner stability that resists twisting when pulled across rutted, uneven pasture soil.

Speedline Square Steel Tube offers uniform wall thickness and clean 90-degree corners, making layout and squaring infinitely easier than working with round pipe. The smooth, flat sides allow for straightforward fit-up when tacking joints, ensuring strong root penetration for structural welds.

Key specifications to keep in mind for frame builds include:

• Wall thickness: 11-gauge (0.120") for main chassis, 14-gauge (0.083") for upper racks
• Dimensions: 1.5-inch or 2-inch square profile
• Material: Hot-rolled mild steel for easy welding

Before welding, sand away factory mill scale and light oils to prevent weld contamination and porous joints. Select wall thickness carefully to maintain a sturdy frame without making the unit too heavy for small farm vehicles to tow comfortably.

This material is ideal for fabricators building a rigid metal subframe meant for heavy seasonal use. It is unnecessary if you plan to build a lightweight, wooden-framed skid feeder for small poultry or rabbits.

MIG Welder – Hobart Handler 140 Wire Feed

A reliable wire-feed welder joins individual steel tubes into a single, cohesive frame capable of enduring heavy livestock impacts. Secure welds prevent frame flexing, which can snap hardware and compromise structural integrity over time.

The Hobart Handler 140 Wire Feed operates on standard 110V household outlets while delivering up to 140 amps of welding power. Its heavy-duty cast aluminum drive system ensures smooth wire feeding without slipping, even during extended fabrication sessions in a home workshop.

Common applications for this unit on the farm:

• Joining 11-gauge structural frame tubing
• Attaching heavy hitch channel brackets
• Tack-welding wire grid panels to angle iron

For outdoor fabrication where wind disrupts shielding gas, run flux-core wire to secure deep penetration on thick steel joints. Be mindful of the unit’s 20% duty cycle at 90 amps, allowing the machine adequate cooling time between long continuous weld beads.

This welder is perfect for small-scale farmers working with 24-gauge up to 1/4-inch mild steel. It is not suitable for industrial fabrications requiring thick plate steel or continuous heavy-amperage production work.

Angle Grinder – DEWALT 20V MAX Cordless Tool

Angle grinders clean raw steel joint edges before welding and grind down sharp slag afterwards. A mobile feeder requires perfectly smooth exterior edges so animals do not scrape their hides or faces while feeding.

The DEWALT 20V MAX Cordless Angle Grinder provides essential job-site portability without dragging extension cords through field dirt or shop floor clutter. Its 7,000 RPM brushless motor delivers ample power for beveling thick frame tubing and flush-grinding aggressive weld seams.

Essential tasks for this tool during fabrication:

• Beveling tube edges prior to structural welding
• Removing mill scale and rust from joint locations
• Smoothing sharp weld spatters and wire end burrs

Cordless grinding draws heavy current, so keep multiple 5.0 Ah or higher lithium-ion batteries charged and ready for full-day builds. Always wear full face protection and heavy leather gloves to shield against flying sparks and wheel debris.

This tool is a mandatory investment for anyone fabricating steel livestock equipment. It offers little value for simple bolt-together timber projects where no metal preparation is required.

Swivel Casters – Shepherd Hardware Pneumatic Wheel

Mobility relies entirely on continuous ground clearance over soft soil, gravel, and mud. Heavy-duty caster wheels allow the feeder to pivot smoothly, turning tight corners around pasture gates and barn doorways.

Shepherd Hardware Pneumatic Wheel Casters feature large air-filled rubber tires that absorb impact over rough field terrain without digging into soft turf. The broad wheel tread distributes weight evenly, preventing the feeder from sinking deep into wet pasture soil during spring rains.

Recommended usage conditions:

• Terrain: Soil, gravel pathways, and dry pasture turf
• Weight capacity: Up to 300 lbs per caster wheel
• Tow speed: Walking speeds under 5 mph

Regularly inspect air pressure and grease the swivel plate bearings to ensure smooth turning under load. Keep total weight distribution in mind, as heavy round bales can exceed individual caster load thresholds if left unmonitored.

These pneumatic wheels are excellent for lightweight to medium feeders moved by hand, UTV, or lawn tractor. They are not rated for high-speed highway trailering or extreme load weights exceeding several hundred pounds per wheel.

Livestock Panel – OK Brand Select Cattle Panel

Livestock panels form the interior basket or drop rack holding hay off the ground. The mesh allows animals to pull small mouthfuls of forage without trampling or wasting half the bale underfoot.

OK Brand Select Cattle Panels are constructed from heavy 4-gauge galvanized wire that resists bending under aggressive pressure from feeding stock. The hot-dip galvanized finish prevents rust caused by constant moisture, rain, and animal saliva.

Available grid patterns for different stock:

• 4" x 4" openings: Ideal for sheep, goats, and horned stock
• 6" x 6" openings: Best suited for cattle and full-sized horses
• Graduated spacing: Dense bottom grid to catch loose falling leaves

Measure mesh openings carefully relative to your specific animal species to prevent stuck heads or hooves. Standard grid spacing works exceptionally well for mature livestock but may require modification for smaller young stock.

These panels are the top choice for durable, high-visibility hay baskets across medium to large livestock setups. They are not recommended for newborn kids or small lambs without adding smaller mesh netting or wire overlays.

Bolt Cutter – HK Porter 24 Inch Steel Cutter

Cutting thick galvanized wire panels to match frame dimensions requires tremendous shearing force. High-lever shears trim panels quickly and cleanly without creating hazardous, sharp metal burrs.

The HK Porter 24 Inch Steel Cutter utilizes induction-hardened alloy steel jaws that bite through thick 4-gauge wire with minimal hand force. Its center-cut jaw design leaves relatively clean ends on wire strands, reducing the amount of post-cut grinding required.

Recommended cutting applications:

• 4-gauge and 6-gauge galvanized cattle panel wire
• High-tensile fencing wire and mesh netting
• Clean trimming near frame weld lines

Position wire strands deep within the center of the cutting jaws rather than near the tip to maximize mechanical advantage and extend jaw life. Wear eye protection during operation, as wire tips under tension can snap off unpredictably when sheared.

This cutter is essential for anyone regularly trimming cattle panels, fencing, or heavy wire mesh on the farm. It is not designed to cut solid steel structural tubing, rebar, or hardened chain links.

Sizing the Mobile Feeder for Your Livestock

Feeder size must match both the physical dimensions of your stock and the volume of hay offered. A feeder built too tall prevents smaller animals from reaching forage, while a frame built too low invites livestock to step inside the basket and contaminate the feed.

Allow roughly 18 to 24 inches of linear throat space per head of sheep or goats, and 24 to 30 inches per head for mature cattle. Ensure the top edge of the basket sits comfortably at shoulder height to encourage natural head positions while keeping hooves firmly on the ground.

Select frame dimensions based on standard hay bale sizing to maximize efficiency. Designing a basket that fits two small square bales end-to-end minimizes daily loading chores while keeping the center of gravity low and stable.

Trailer Hitch – Curt Channel Mount Coupler

A robust coupler links the mobile feeder to your towing vehicle, enabling quick field rotation. Being able to hook up quickly makes moving hay feeding locations a quick task rather than a physical chore.

The Curt Channel Mount Coupler features an adjustable height channel system, allowing precise leveling across different tow vehicles like UTVs, garden tractors, or pick-ups. Its durable sleeve-lock mechanism secures firmly onto standard 2-inch hitch balls with minimal sloppiness or noise during transport.

Key compatibility features:

• Coupler size: Fits standard 2-inch hitch balls
• Channel mount: 3-position vertical height adjustment
• Latch type: Heavy-duty sleeve-lock mechanism

Always drop a steel safety pin through the latch mechanism to prevent accidental detachment over rough pastures. Align the channel mount so the feeder remains perfectly parallel to the ground during towing to prevent uneven tire wear.

This adjustable coupler is ideal for towable feeders moved regularly between multiple pastures or fields. It is unnecessary for small hand-pushed feeders or stationary units stationed in a single paddock.

Metal Paint – Rust-Oleum Farm Equipment Enamel

Exposed steel components corrode quickly when subjected to animal breath, weather, and organic acids from manure. Protective coatings seal raw welds and frame steel against deep structural rust and pitting.

Rust-Oleum Farm Equipment Enamel is a heavy-duty alkyd paint formulated specifically to withstand harsh agricultural environments. Its smooth, rust-preventative finish resists fading from UV exposure, chipping from flying gravel, and corrosion from atmospheric moisture.

Recommended surface application steps:

• Clean raw steel with wire wheel or degreaser
• Apply rust-inhibiting alkyd primer base coat
• Spray or roll two topcoats of heavy-duty enamel

Degrease bare steel thoroughly and apply a dedicated rust-inhibiting primer before applying enamel coats for maximum adhesion. Allow the finish to cure fully for several days before placing the feeder into service around livestock to prevent chipping from fresh hoof contacts.

This enamel paint is mandatory for non-galvanized mild steel farm equipment stored outdoors. It is unnecessary for fully stainless steel constructs or heavy hot-dipped galvanized structural tubing.

Critical Safety Features for Livestock Feeders

Safety considerations are paramount when designing equipment that interacts daily with unpredictable animals. Protruding bolt threads, sharp metal corners, or jagged wire tips can cause costly hide damage, eye injuries, or deep lacerations.

Eliminate all tight V-shaped pinch points where an animal’s head, neck, or leg could become trapped when reaching into the feeder basket. Ensure the frame’s base is wide enough to resist tipping over, even if multiple animals crowd one side aggressively during feeding time.

Cover open ends of steel tubing with welded caps or plastic inserts to keep wasps from nesting inside. Keep ground clearance sufficient to prevent hooves from getting caught underneath the frame or axle structure during movement.

Maintaining Your Mobile Hay Feeder Year-Round

Regular maintenance prevents minor wear from turning into costly structural failures during peak winter feeding months. A simple seasonal inspection routine keeps your towable feeder rolling smoothly for years.

Check pneumatic tire pressures monthly, as temperature drops cause pressure loss that makes towing difficult over soft ground. Grease caster pivot points and hitch latches twice a year to prevent rust lockup and smooth mechanical operation.

Inspect frame welds and panel connection points each spring after heavy winter use. Scrape away dried manure build-up along lower structural members and touch up scraped paint immediately to stop surface rust before it eats into the metal.

Building your own mobile hay feeder puts you in control of pasture management, feed costs, and equipment durability. With the right selection of steel, heavy-duty hardware, and reliable welding gear, you can craft a towable feeder tailored perfectly to your herd’s unique needs. Roll it out to fresh ground each week, protect your pasture health, and enjoy the convenience of efficient livestock feeding season after season.