Inter-Plant Weeder SA-AI vs Field Friend (Feldfreund)
Two weeding machines, one verified table. Every figure below is sourced and dated; vendor claims are labelled and kept apart from independent results.
Tractor-mounted, chemical-free in-row weeder from SPAPPERI N.T. S.R.L. (Città di Castello, Italy; est. 1964). A hydraulic PTO-driven frame (1-4 rows) carries per-row "BOX AI" units — a 3D camera plus AI vision developed with Czech partner Ullmanna — that detect each plant's root and drive independent vertical rotary tillers or fixed knives to weed within the row. Spapperi's own brochure calls it both "SA-IA" and "SA-AI"; the product is marketed via that brochure and lead-gen listings rather than a dedicated page on Spapperi's main site as of this check.
Best for: Commercial vegetable and root-crop growers (Spapperi's own examples include lettuce, cabbage, pumpkin and sugar beet) who already run an appropriately-sized tractor with rear hydraulics and want mechanical in-row weed control without GPS guidance or chemical herbicides.Modular AI mini field robot from Zauberzeug (Havixbeck, Münsterland) — a ~100 kg tracked platform under 1 m³ that uses onboard camera AI (the "Zauberzeug Robot Brain" edge-compute unit) to distinguish crops from weeds and mechanically remove them, including deep-rooted weeds. Offered both as a pay-per-hour weeding service (no machine purchase) and as a development platform; trade press reported roughly €20,000 for the machine with tools up to ~€5,000 extra. Winner of the Münsterland Innovation Award 2023/24.
Best for: Small-scale German vegetable and row-crop growers, market gardens and research users who want camera-guided mechanical in-row weeding without a big capex — pay per hour of weeding done.| Inter-Plant Weeder SA-AI Verified 2026-07-19 | Field Friend (Feldfreund) Verified 2026-07-17 | |
|---|---|---|
| Overview | ||
| Task | Weeding | Weeding |
| Autonomy | AI-assisted | Fully autonomous |
| Country of origin | Italy | Germany |
| Availability | Available now | Available now |
| EU market | Pending | CE-marked |
| Lead time | Not disclosed | Not disclosed |
| Last verified | 2026-07-19 | 2026-07-17 |
| Specifications | ||
| Power source | Tractor PTO-driven hydraulics — dedicated independent hydraulic circuit per weeding element, shared oil tank | Battery-electric; solar panel and backup battery cited for extended operation |
| Required tractor power | Not disclosed — Spapperi specifies PTO-driven hydraulic transmission but publishes no minimum tractor horsepower figure for the SA-AI | Is the vehicle (compact tracked mini robot) |
| Dimensions | Not disclosed — modular frame (1-4 rows, single or double planting-row spacing); overall width/length vary by configuration | Under 1 m³ compact footprint (dev-kit chassis: 845 × 670 × 685 mm) |
| Weight | Not disclosed | ~100 kg (dev-kit chassis 100 kg) |
| Min farm size | Not disclosed — no hectare threshold published; the multi-row tractor-mounted design targets commercial vegetable/root-crop operations | Not disclosed |
| Productivity | 4,500-8,500 plants/hour per row, depending on in-plant spacing | Not disclosed |
| Max speed | Not disclosed | Not disclosed |
| Sensors | 3D camera plus integrated lighting per weeding element ("BOX AI", AI vision by Ullmanna) for day/night plant-root detection; anti-collision sensors on each element arm; central "Power Box" CPU with GPS and internet connectivity | Camera AI crop/weed differentiation · GPS-RTK navigation · Zauberzeug Robot Brain edge-AI computer |
| Price & model | ||
| Price (EUR) | Not disclosed | ~€20,000 |
| Native price | Not disclosed | ~€20,000 (machine, trade-press reported, Nov 2024) + up to ~€5,000 tools; service model priced per hour |
| Business model | Buy — tractor-mounted implement sold direct from Spapperi NT S.r.l. (Città di Castello, Italy); AI vision developed with Czech partner Ullmanna, integrated as Spapperi's "BOX AI - Ullmanna System" | Pay-per-hour weeding service as the headline model; machine and dev-kit purchase also offered |
| Ongoing cost | Interchangeable rotary-tiller/knife wear parts; hydraulic oil and PTO-pump upkeep; AI crop models update automatically over the internet (Spapperi states a new crop can be added in about 6 hours) | Service model includes maintenance; battery cycling and tool wear if machine is owned |
| Key outcome | ||
| Best verified result | In-row weeding labour Vendor testimonial states each row unit replaces about 10 manual workers · vendor | Herbicide use Camera-guided mechanical single-weed removal, herbicide-free, including deep-rooted weeds · vendor |
| EU context | ||
| CE marking | Not disclosed — no CE-marking statement found for the SA-AI on Spapperi's site, its brochure, or the dealer-contact page | German-built machine operating commercially in Germany; CE status not independently verified |
| Machinery Regulation | Not disclosed — would fall under Regulation (EU) 2023/1230 as a mounted implement with AI-driven functions if placed on the EU market; no explicit compliance statement found | EU-built; conformity route under the EU machinery regime not published |
| CAP subsidy | Not disclosed — mechanical/AI in-row weeding removes herbicide use, which is relevant to CAP eco-schemes rewarding reduced chemical inputs, but Spapperi does not tie the SA-AI to CAP explicitly | Herbicide-free mechanical weeding supports CAP eco-scheme and organic goals |
"—" 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.