FeedingPoly bunk feeders
Smooth‑bore troughs that will not rust or splinter, with sloped floors that clean out fully and edges that survive being climbed on.
Request specifications
Energy‑free units need no electrical service at all. Heated units need a dedicated circuit but deliver higher draw rates and open‑trough access.
The original poly waterer. Insulated double‑wall shell, sealed drinking spaces closed by a floating ball, and a reservoir sized so that ground heat plus animal traffic keep the water liquid without an element.
| Model | Drinking spaces | Reservoir | Beef capacity | Dairy capacity | Typical application |
|---|---|---|---|---|---|
| 3320 | 1 × 8¾″ | 15 gal | 50 head | 25 head | Heritage single‑space unit; small pens and remote paddocks |
| 3330 | 1 × 8¾″ | 15 gal | 50 head | 25 head | Compact pens, calving lots, single‑pen mount |
| 3390 | 2 × 10″ | 44 gal | 150 head | 73 head | Dry lots and shared fence‑line between two pens |
| 3354‑S | 4 × 10″ | 70 gal | 200 head | 90 head | Feedyard pens; sloped bottom with drain for fast clean‑out |
| 3370‑S | 6 × 10″ | 100 gal | 250 head | 120 head | Large pens and heavy‑draw yards; up to 200 cow–calf pairs |
| 3410‑4E | 4 | 70 gal | 200 head | 90 head | Four‑space unit prepared for supplemental electric heat |
| 3465 | 2 | 44 gal | 150 head | 73 head | Two‑space fence‑line unit for shared‑pen installation |
When the herd wants to drink all at once a dairy return alley after milking, a feedyard pen on a July afternoon you need open surface area and fast recovery. BigSpring gives you both without giving up insulation.
| Model | Trough length | Working volume | Beef capacity | Dairy capacity | Typical application |
|---|---|---|---|---|---|
| 6000 | 90″ | 60 gal | 250 head | 100 head | Feedyard bunk line and dry‑lot fence‑line watering |
| 6100 | 90″ | 60 gal | — | 100 head | Dairy return alley and free‑stall crossover |
| 6000‑H | 90″ | 60 gal | 250 head | 100 head | Factory‑fitted submersible heater package for cold climates |
The same insulated open‑top thinking scaled down to a hutch, a maternity pen, a horse paddock or a sheep lot where a 100‑gallon reservoir would only go stale.
| Model | Configuration | Working volume | Suited to | Heater |
|---|---|---|---|---|
| 2800 | Single‑sided | 4 gal | Calf hutches, nursery pigs, kids and lambs | Optional |
| 2900 | Double‑sided | 8 gal | Shared fence line between two small pens | Optional |
| 3000 | One‑sided | 6 gal | Maternity pens, sick bays, horse stalls | Optional |
| 3100DS | Double‑sided | 8 gal | Paddock and small‑lot duty, sheep and goats | Optional |
Built to the same corrosion‑free, chew‑resistant polyethylene specification as our waterers because the bunk line takes the same abuse the waterer does.
FeedingSmooth‑bore troughs that will not rust or splinter, with sloped floors that clean out fully and edges that survive being climbed on.
Request specifications
FeedingCovered mineral and supplement feeders that keep product dry and palatable in pasture, with capacity sized to a rotation interval.
Request specifications
FeedingCalf‑access creep units that keep the cows out and the ration clean, with fill access sized for a loader bucket.
Request specifications
HandlingConcrete pad templates, riser sleeves and fence‑line mounting hardware that hold a unit square and level for its whole service life.
Installation details
HandlingPoly and steel guard components that protect the unit from equipment strikes and stop stock from crowding the drinking face.
Request specifications
HandlingSkid‑mounted waterer packages for rotational grazing cells, matched to gravity, solar‑pump or pressurised supply.
Grazing systemsEvery wear item on an Ahrens unit is a stocked, replaceable part. Nothing on our equipment should ever have to be scrapped because a two‑dollar component failed.
Standard and high‑flow float valve assemblies, seats, seals and adjustment linkages.
Submersible and pad heaters, thermostats, cord sets and grounding hardware for cold‑climate installs.
Replacement drinking‑space balls, retainers and lids in original diameters for every MiraFount generation.
Riser sleeves, insulated tubes, anchor kits and pad hardware for new pours and retrofits.
Drain plugs, gaskets and quick‑dump fittings that make a full clean‑out a one‑person job.
Bumper rails and corner guards that take the hit from a loader bucket instead of the shell.
Pre‑packed seasonal kits with the seals, balls and float parts a unit typically needs at overhaul.
Installation sheets, exploded parts diagrams and specification drawings for current and legacy models.
| Criterion | MiraFount® | BigSpring™ | LilSpring™ |
|---|---|---|---|
| Power required | None in normal winters | Dedicated heated circuit | Dedicated heated circuit |
| Drinking access | Ball‑covered openings | Open trough | Open trough |
| Head per unit | 50–250 beef | Up to 250 beef / 100 dairy | Small pens and groups |
| Reservoir | 15–100 gal | 60 gal | 4–8 gal |
| Peak draw handling | Good | Excellent | Moderate |
| Winter operating cost | Lowest | Low (insulated) | Low (insulated) |
| Clean‑out speed | Fast on ‑S drain models | Fastest | Fastest |
| Best for | Pasture, dry lot, remote sites | Dairy alleys, heavy‑draw pens | Hutches, maternity, small stock |
Send us pen dimensions, peak head count, species and whether power is available at the site. We will specify the unit and the drinking spaces.