Robovator vs Inter-Plant Weeder SA-AI
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, vision-guided intra-row hoeing implement from Danish manufacturer F. Poulsen Engineering — a camera above each row spots individual plants and hydraulically swings weeding knives out and back around them, removing weeds between plants without touching the crop. Commercially sold since the early 2010s and independently trialled in US vegetable production; configurable from 5 to 31 rows and adjustable to 25–75 cm row spacing.
Best for: Vegetable, sugar-beet and row-crop growers with a suitable PTO tractor who want camera-guided mechanical in-row weeding to cut herbicide use and hand-weeding labour, across a wide range of farm scales (5- to 31-row configurations).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.| Robovator Verified 2026-07-18 | Inter-Plant Weeder SA-AI Verified 2026-07-19 | |
|---|---|---|
| Overview | ||
| Task | Weeding | Weeding |
| Autonomy | AI-assisted | AI-assisted |
| Country of origin | Denmark | Italy |
| Availability | Available now | Available now |
| EU market | Pending | Pending |
| Lead time | Not disclosed | Not disclosed |
| Last verified | 2026-07-18 | 2026-07-19 |
| Specifications | ||
| Power source | Tractor-mounted implement, PTO-driven hydraulics (~1 hp per row) | Tractor PTO-driven hydraulics — dedicated independent hydraulic circuit per weeding element, shared oil tank |
| Required tractor power | 3-point-hitch mounted; requires tractor PTO shaft speed of at least 420 rpm (hydraulic pressure and lamps cut out below ~360 rpm) | Not disclosed — Spapperi specifies PTO-driven hydraulic transmission but publishes no minimum tractor horsepower figure for the SA-AI |
| Dimensions | Configurable 5 to 31 rows; row spacing adjustable 25–75 cm (9–30 in); US-market spec sheet lists 6–12 lines per bed with 60–84 in bed spacing | Not disclosed — modular frame (1-4 rows, single or double planting-row spacing); overall width/length vary by configuration |
| Weight | 700 kg (1,500 lb) base weight | Not disclosed |
| Min farm size | Not disclosed | Not disclosed — no hectare threshold published; the multi-row tractor-mounted design targets commercial vegetable/root-crop operations |
| Productivity | Roughly 1.5–2 acres/hour depending on soil and plant conditions (per Pacific Ag Rentals, US distributor); manufacturer-stated field speed 2–8 km/h (1.2–5 mph) | 4,500-8,500 plants/hour per row, depending on in-plant spacing |
| Max speed | 2–8 km/h (1.2–5 mph) | Not disclosed |
| Sensors | One plant-detection camera per row for image-based crop location, functions in low light; automatic self-centring side-shift (±40 cm range, engages after ~1 m of travel) | 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 |
| Price & model | ||
| Price (EUR) | Not disclosed | Not disclosed |
| Native price | Not disclosed | Not disclosed |
| Business model | Buy — tractor-mounted implement sold direct from F. Poulsen Engineering (Denmark) and via distributors, including Agri Evolution (Netherlands, EU) and Pacific Ag Rentals (Salinas, California, western US) | 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" |
| Ongoing cost | Wear parts (weeding knives/blades, camera lens care), hydraulic fluid and PTO shaft maintenance; no software subscription published | 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) |
| Key outcome | ||
| Best verified result | Intra-row weed removal vs. a standard cultivator +18 to +41 percentage points · independent | In-row weeding labour Vendor testimonial states each row unit replaces about 10 manual workers · vendor |
| EU context | ||
| CE marking | No CE-marking statement found in the manufacturer's public materials, so compliance is listed as not confirmed — although CE marking is legally required to place machinery on the EU market and F. Poulsen actively sells within the EU (Denmark, and via Netherlands distributor Agri Evolution) | Not disclosed — no CE-marking statement found for the SA-AI on Spapperi's site, its brochure, or the dealer-contact page |
| Machinery Regulation | Tractor-mounted implement falling under the EU Machinery Regulation (EU) 2023/1230; the tractor operator remains in control at all times | 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 |
| CAP subsidy | Herbicide-free/reduced mechanical in-row weeding supports CAP eco-scheme and organic-conversion measures | 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 |
"—" 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.