Kilter’s AX-1 is an autonomous in-row weeding robot that sprays micro-droplets of herbicide onto weeds rather than broadcasting a field. The official product page says AI finds weeds and patented droplet technology aims herbicide at 6×6 mm accuracy, typically using pelargonic acid. With typical weed pressure around 5%, Kilter states an average 96.6% reduction in input use. The frame is modular and light; Kilter currently publishes a distributed dry weight of 300 kg.
The Robot Report (3 January 2026) located Kilter AS in Langhus, Norway, and listed: 260 kg dry weight (about 10% of a tractor-and-sprayer combination — this 260 kg figure is older than the 300 kg on the current official page); 50 L tank; 6×6 mm Single Drop Technology; about 1 ha/hour; up to 95% herbicide reduction versus broadcast spraying; 24/7 operation; compatible with standard herbicides and bio-herbicides such as pelargonic acid.
Kilter’s own blog says AX-1 launched in 2021 and is in use in Norway, Sweden, Germany, and the Netherlands (carrots, onions, salad, beets), with three robots operating in Australia. CEO Anders Brevik is quoted there. An official Kilter YouTube video, “Kilter AX 1 Product Demo,” shows the Remote app and 6 mm outlets.
Image: official Kilter AX-1 product-page photograph (AX-1 labeled on the boom). Source: https://www.kiltersystems.com/ax1
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