Mettler-Toledo has introduced a new generation of bulk-flow x-ray inspection systems designed to improve contamination detection and reduce waste in high-volume processing, including potato-handling operations. The X3 Series, comprising the X13 and X53 models, was launched on 24 November 2025 and is aimed at processors handling unpackaged raw materials such as fresh, frozen or dehydrated potatoes.

According to the company, the X3 Series is engineered specifically for loose-flow bulk products moving on conveyors. Typical applications listed by Mettler-Toledo include “dried, fresh or frozen fruits and vegetables, nuts, pulses, root vegetables such as carrots and potatoes.” In potato processing, these systems are commonly used at early raw-intake stages to protect cutters, peelers and fryers from foreign-material risks.

Both models can detect contaminants “as small as 0.3 – 0.4 mm, depending on application and contaminant material,” supporting compliance with global food-safety requirements. The systems feature targeted reject mechanisms – either a 30-nozzle air-blast unit or a six-flap pusher – designed to remove contaminants without discarding large volumes of usable raw material. The reject units sit above the product stream, which the company says reduces the risk of blockage and supports consistent hygienic handling.

For manufacturers managing high throughputs, including potato processors reliant on continuous intake lines, the systems operate at rates “up to 5,000 kg/hour.” Tool-free belt removal, accessible conveyor housings and an automatic product-configuration function are designed to simplify cleaning and reduce operator error.

X13: Entry to High-Performance Bulk Inspection

The X13 system incorporates Mettler-Toledo’s HiGain+ detector technology and ContamPlus™ software to deliver what the company describes as “sharp imaging and reliable detection of physical contaminants such as metal, glass, calcified bone and stone” across a wide range of bulk materials.

X53: Dual-Energy System for Complex Raw Material Streams

For processors who handle variable potato grades, high-soil loads or mixed-density defects, the flagship X53 introduces dual-energy detection. By combining HiGain+ DE detectors with the company’s AMD Pro software, the system “can differentiate between materials with similar densities,” allowing detection of low-density contaminants that single-energy systems may miss. Mettler-Toledo notes that the X53 incorporates “product validation routines, self-checking performance verification and a fully lockable inspection tunnel,” supporting more stringent compliance regimes.

Hygienic and Operator-Centric Design

Both X3 models feature front-open access, optional belt scrapers and IP ratings “up to IP69” to suit facilities with intensive washdown requirements. A 15.6-inch touchscreen and automatic set-up functions aim to reduce training needs and support consistent day-to-day performance.

Connectivity to the ProdX™ data platform enables real-time monitoring and automated documentation, aligning with the industry’s rising requirements for traceability and audit transparency.

Chris Plant, Head of Sales X-ray Inspection at Mettler-Toledo Safeline X-ray, said: “The launch of the X3 Series is a major milestone for bulk flow inspection. With the X13 and X53, we are combining exceptional detection capabilities with hygienic design and versatile reject options that significantly reduce waste. From agricultural produce to confectionery, the X3 Series enables manufacturers to protect equipment, reduce costs and build consumer trust, while simplifying compliance in an increasingly demanding regulatory environment.”