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SRone vs Aramis II

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

SRone in full →Aramis II in full →Open in the comparator →
GEA Farm Technologies · Germany

GEA's battery-powered manure scraper robot for slatted floors — a flat, quiet 400 kg unit that pushes slurry through the slats with up to 100 kg of pushing force, turns fully within 2 m and slips under gates. The lateral-guidance SRone cleans up to 8,000 m² of slatted floor per day; the programmable SRone+ extends that to 12,000 m² with custom route plans. Runs up to 19.5 h per day on a 4.5 h quick charge.

Best for: Dairy barns with slatted floors — from simple straight walkways (SRone) to larger barns with complex, personalised routes (SRone+) — wanting continuous slat cleaning without floor cables.
Hetwin Automation Systems · Austria

Rail-guided all-in-one feeding robot from Tyrolean specialist Hetwin — weighs, cuts, mixes, doses and pushes feed around the clock from an overhead rail, with two horizontal mixing augers producing a homogeneous ration from batches as small as 50 kg. Aimed at medium herds of roughly 50–150 animals; sold and serviced in Switzerland via Harvestore.

Best for: Medium dairy and fattening barns (≈50–150 animals) wanting fully automatic group-specific fresh feeding without a mixer wagon — overhead rail keeps the feed alley clear.
SRone
Verified 2026-07-17
Aramis II
Verified 2026-07-16
Overview
TaskRobotic barnRobotic barn
AutonomyFully autonomousFully autonomous
Country of originGermanyAustria
AvailabilityAvailable nowAvailable now
EU marketCE-markedCE-marked
Lead timeNot disclosedNot disclosed
Last verified2026-07-172026-07-16
Specifications
Power sourceHigh-performance batteries — up to 19.5 h operation/day, 4.5 h quick chargeMains electric via sliding power line on overhead rail — up to 60% energy saving vs comparable systems (vendor)
Required tractor powerNot applicableNot applicable
DimensionsFlat, compact profile — passes under gates; full turn within 2 mOverhead rail-guided unit, sized to barn
Weight400 kgNot disclosed
Min farm sizeSized per barn; economic from smaller slatted barns upward~50 animals
ProductivityUp to 8,000 m²/day (SRone, lateral guidance); up to 12,000 m²/day (SRone+, programmable routes)Batches from 50 kg; feeding around the clock, group-specific rations
Max speedNot disclosedNot applicable
SensorsLateral guidance (SRone); multifunctional control with programmable route plans (SRone+)Weighing cells for ration accuracy
Price & model
Price (EUR)Not disclosedNot disclosed
Native priceNot disclosedNot disclosed
Business modelBuy via GEA dealer / Solution Center networkBuy via Hetwin and country distributors
Ongoing costElectricity; battery and blade wear parts; dealer service contractElectricity; auger and knife wear parts; service via distributor
Key outcome
Best verified resultSlatted-floor cleaning capacity
Up to 8,000 m²/day autonomous (SRone); 12,000 m²/day (SRone+) · vendor
Feeding working time
-70% · vendor
EU context
CE markingCE markedCE marked
Machinery RegulationCompliant — Regulation (EU) 2023/1230 (DE manufacturer); Swiss market access via CH–EU Mutual Recognition AgreementCompliant — Regulation (EU) 2023/1230 (AT manufacturer); Swiss market access via CH–EU Mutual Recognition Agreement
CAP subsidyEligible under rural-development livestock schemes; CH — cantonal structural-improvement credits may applyEligible 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.