Inspection of bulk foods with x-ray inspection systems
Bulk Food X-ray Inspection Systems

X-ray Systems for the Inspection of Bulk Foods

Inline X-ray Inspection Solutions to enhance the Safety of Bulk Food Products

Bulk Food X-ray Inspection Systems
Bulk Food X-ray Inspection Systems
Bulk Food X-ray Inspection Systems

Products and Specs

Bulk Food X-ray Products and Technical Specifications

Products and Specs


Download White Papers, Guides and X-ray Inspection Documentation

X-ray Inspection Guide

Guide to X-ray Inspection Technology In the Food and Pharmaceutical Industries
The X-ray Inspection Guide provides a single and definitive source of reference to x-ray inspection technology for use in the food and pharmaceutical...


ProdX™ Software Brochure
ProdX™ allows you to connect and control your entire product inspection management process from a single point or from multiple remote locations, elim...

White Papers

X-ray Inspection More Than Just Contamination Detection
This white paper is for food manufacturers who consider x-ray inspection to comply with food-safety regulations and legislations.
How Safe is X-ray Inspection of Food?
This white paper is for food manufacturers who consider x-ray inspection to comply with food-safety regulations and legislations.
Reasons for an X-ray Inspection Programme
This White Paper describes the benefits of implementing an effective x-ray inspection program which include minimizing product recalls and assisting m...
Metal Detection, X-ray Inspection or Both?
This white paper simplifies the the two competing technologies. By doing so, it helps food and pharmaceutical manufacturers select the appropriate det...

Case Studies

Bell Food Group
An x-ray case study in which meat processor Bell Food Group ensures their burger patties are inspected for various foreign bodies, plus product errors...


What bulkflow products can be inspected by METTLER TOLEDO Safeline's x-ray systems?

Bulk-flow x-ray systems provide outstanding detection of physical contaminants in various applications including wet, dry, free-flowing loose products before they are packaged or added, as an ingredient, to a finished product. Typical applications include grains, nuts, extruded snacks, frozen or dried fruits, vegetables and pulses. 

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What is the best way to feed product into a bulk food x-ray inspection system?

Product presentation is very important with bulk-flow systems; this can be via an up-stream conveyor, hopper or vibratory conveyor feed. To guarantee consistent detection performance, it is desirable to have a consistent product depth passing through the x-ray system.

What are the benefits of bulk x-ray inspection?

When using bulk x-ray inspection technology, physical contamination detection levels are typically better in the early stages of the production process where unprocessed bulk product can be presented in a shallower depth and with a more uniform (homogeneous) texture than in final sealed packs.

Incoming bulk raw materials in the food industry can chave a high risk of contamination. The inspection of these products as they enter the factory using x-ray technology allows the quality of the products provided by suppliers to be checked.

Eliminating the risk of contaminants as early as possible in the production process will minimise product waste and production costs. Further value added to the product through food processing and packaging is avoided and processing equipment is protected from possible expensive damage caused by an undetected stone or piece of metal.

What reject devices do you commonly use on your bulk systems?

Multi-lane scoops are available to suit a wide range of bulk-flow products and throughput rates. Instead of rejecting a full belt width, multi-lane scoops allow a much smaller amount of bulk food product to be rejected; minimizing product waste, saving costs and improving productivity.

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What hygiene features are available on bulk x-ray inspection systems?

Sloped surfaces and curved edges minimize bacteria traps and allow water to run off the system, enabling quick and effective cleaning with minimal downtime. IP69 rating comes as standard for all METTLER TOLEDO bulk x-ray solutions, making them suitable for harsh wash-down environments.

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How do you transport product through the bulk x-ray system?

A troughed belt is recommended when inspecting bulk food products and a number of factors must be considered when choosing a suitable belt material. In bulk-flow applications where loose, free-flowing unpackaged product is in direct contact with the belt and/or side-skirted guides, the transport handling materials used must comply with FDA regulations and EU Directives.

What throughput levels can be achieved? 

High volume throughputs up to 14,000 kilograms per hour can be achieved (depending on product density and layer thickness), meaning bulk systems can run at customers' existing line speeds, maintaining high production levels.

Where on the production line is the ideal insertion point for a bulk x-ray inspection system?

Using the Hazard Analysis and Critical Control Points (HACCP) process is the surest way to ensure products are free from contaminants. Manufacturers should perform a review of the production process and identify risks to product safety. Where a risk of physical contamination is identified, a Critical Control Point (CCP) should be established. In many cases, this can be early in the production process to identify and remove contaminants before adding value to the product. In other circumstances, it may be more practical to inspect at the end of the process prior to shipping of the product.

    Are x-ray systems expensive to service?

    Service contracts should form part of any x-ray system purchase. Regular servicing of an x-ray system, including performance verification, will ensure it is operating at the optimum level of performance. This will prevent food safety issues. Preventative maintenance enables manufacturers to avoid downtime issues due to unexpected maintenance work.

    All METTLER TOLEDO X3000 x-ray system generators come with a five-year warranty when a service contract is purchased. By protecting the most valuable part of the x-ray machine, manufacturers can have confidence that production uptime is maximized.

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