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OptiDuo Robotic Feed Refresher vs Butler Gold Pro

Two robotic barn machines, one verified table. Every figure below is sourced and dated; vendor claims are labelled and kept apart from independent results.

OptiDuo Robotic Feed Refresher in full →Butler Gold Pro in full →Open in the comparator →
DeLaval · Sweden

DeLaval's robotic feed pusher-and-remixer — unlike plain pushers, a twin-spiralled rotating auger remixes the ration while repositioning it at the feed fence, keeping roughage strands intact so refused compacted feed stays appetising. Adaptive Drive adjusts speed and track to feed type and quantity; runs around the clock, up to 10 trips a day. Direct competitor to the Lely Juno.

Best for: Robotic-milking or free-stall dairy herds that want feed pushed AND remixed 24/7 — especially where compressed, sorted-through TMR is depressing intake at the fence.
Wasserbauer Fütterungssysteme · Austria

Free-driving feed pusher and concentrate dispenser from Austrian feeding specialist Wasserbauer — a 700 kg, 24 V robot that navigates by 5 mm floor magnets set roughly every 2 m, makes up to 99 passes per day and, unlike a plain pusher, uses a special auger to throw feed loosely back to the trough without pressing it. Its 120-litre container (or 2 × 60 l for two components) doses concentrate, minerals or liquids onto the base feed along the way; the drive-over charging station manages batteries automatically.

Best for: Dairy barns wanting more than a pushing drum: fresh, loosened feed plus in-pass concentrate/mineral dosing from one robot, with typical energy use under 4 kWh/day for a 100-cow barn at 14 passes.
OptiDuo Robotic Feed Refresher
Verified 2026-07-16
Butler Gold Pro
Verified 2026-07-17
Overview
TaskRobotic barnRobotic barn
AutonomyFully autonomousFully autonomous
Country of originSwedenAustria
AvailabilityAvailable nowAvailable now
EU marketCE-markedCE-marked
Lead timeNot disclosedNot disclosed
Last verified2026-07-162026-07-17
Specifications
Power sourceBattery-electric, self-charging at docking station24 V battery — 2 × 105 Ah standard (up to 600 m/pass), optional 2 × 160 Ah (up to 1,200 m/pass); brushless maintenance-free motor
Required tractor powerNot applicableNot applicable
DimensionsNot disclosed2,000 × 1,100 × 850 mm
WeightNot disclosed700 kg
Min farm sizeNot disclosedNot disclosed
ProductivityUp to 10 feed-alley trips per day, 24/7 operation; multiple barns and varying alley widths supportedUp to 99 passes/day; <4 kWh/day at 100 cows and 14 passes (vendor)
Max speedNot disclosedNot disclosed
SensorsObstruction sensors — stops automatically for people or animals and resumes when clearMagnet navigation — 5 mm floor magnets at ~2 m intervals
Price & model
Price (EUR)Not disclosedNot disclosed
Native priceNot disclosedNot disclosed
Business modelBuy via DeLaval dealer network; installation with charging/docking stationBuy via Wasserbauer and country distributors; distributed by BouMatic in North America
Ongoing costDealer service contract; battery and wear partsElectricity; battery packs and auger wear parts; distributor service
Key outcome
Best verified resultFeed weigh-back (refusals)
Weigh-back reduced to ~1% with up to 10 trips/day · vendor
Feed-pushing workload
-70% · vendor
EU context
CE markingCE marked as a DeLaval barn machineCE marked
Machinery RegulationPlaced on the EU market by DeLaval under the EU machinery regime; CH access via CH–EU Mutual Recognition AgreementCompliant — Regulation (EU) 2023/1230 (AT manufacturer)
CAP subsidyEligible under rural-development livestock modernisation schemes in several member statesEligible under rural-development livestock schemes

"—" means the manufacturer has not disclosed the figure; we never estimate silently. Model either machine's payback with your own numbers on its ROI calculator page.