X-Ray Inspection Systems: Maximum Product Safety for Food and Pharma

RaymanTech is your specialized technology partner for industrial product inspection and quality assurance. We develop and integrate high-precision x-ray inspection systems for the food and pharmaceutical industries. Our solutions are aimed squarely at quality managers and production leaders who demand uncompromising safety and cannot afford a recall. As an experienced manufacturer of x-ray inspection equipment and a systems integrator, we support you end-to-end — from the initial feasibility study through system selection to commissioning on your line. RaymanTech guarantees audit-readiness under IFS and HACCP standards. We protect your brand from reputational damage and ensure efficient, automated x-ray inspection that boosts your productivity instead of slowing it down.

Technology and How Industrial X-Ray Inspection Works

Modern x-ray inspection systems are among the most powerful tools in industrial quality control. Many customers ask us exactly how an x-ray inspection machine works under the hood.

The technology differs fundamentally from conventional metal detectors. While metal detectors rely on electromagnetic fields, x-ray inspection systems use the absorption of x-ray radiation by matter. An electrical generator produces a cone-shaped beam that passes through the product on the conveyor belt. Beneath the belt sits a highly sensitive line sensor, which measures the residual radiation that has passed through the product.

Every material has a specific density and atomic number. Foreign bodies with a higher density than the surrounding product absorb more energy and appear as dark contrasts on the grayscale x-ray image. This is what makes automated x-ray inspection possible — detecting far more than just magnetic metals. The software analyzes these images in real time and, the moment it detects a deviation, immediately triggers the reject mechanism.

What Our Systems Detect

RaymanTech x-ray inspection systems reliably identify contaminants that remain invisible to conventional optical or inductive sensors.

Metals

We detect iron, non-ferrous metals, and stainless steel. A key advantage is detection inside metallized film or aluminum trays, where this x-ray inspection equipment is physically superior since it isn't disrupted by conductive packaging.

Glass

Detecting glass shards inside glass containers is one of the most demanding disciplines in the field. Our systems detect fragments at the bottom, on the walls, or within the product itself — including glass fragments in flexible packaging such as pouches.

Stone and ceramics

Mineral contaminants are a major risk during crop harvesting. We reliably detect stones in bulk goods, nuts, or vegetables.

Bone

For meat processing operations, detecting calcified bone fragments is essential. Our technology safeguards the quality of fillets, sausage products, and poultry.

Plastics

High-density plastics such as PVC or PTFE can be detected under favorable conditions, provided there is sufficient density contrast with the surrounding product. No blanket guarantee can be given here — whether reliable detection is achievable for a specific application should be verified case by case through a product test. This is particularly relevant for identifying seal residue or machine parts.

Quality Assurance 4.0: Extended Product Inspection

For today's QA managers, foreign-body detection alone is often just the first step. A RaymanTech x-ray inspection system acts as a comprehensive quality gatekeeper. The images it generates carry a wealth of information, and our algorithms evaluate this data in parallel with the search for contamination to run integrity checks — helping you avoid complaints and costly give-away.

Fill-Level Control and Count Verification

Our software checks fill levels in opaque bottles, cans, or yogurt cups, while simultaneously running a completeness check. Is a chocolate missing from the box, or a bar missing from the multipack? The system detects the shortfall based on density and rejects the pack.

Shape and Seal Integrity Inspection

A deformed product or damaged packaging harms brand image. Our image processing detects misshapen burger patties or broken cookies. We also inspect the seal seam for product entrapment — if food residue is caught in the seam, the packaging is no longer airtight, which leads to premature spoilage. Our systems prevent such products from ever reaching retail.

This multifunctionality significantly increases the OEE (Overall Equipment Effectiveness) of your line, consolidating multiple inspection steps — metal detection, visual inspection, and coarse weighing — into a single device.

Mass Determination

X-ray systems can act as a virtual scale. By analyzing the sum of grayscale values in the image, the system determines the weight of individual product zones or the overall product. This is especially useful for detecting air pockets in cheese blocks or underweight dough pieces.

Industry Solutions and Applications

Every industry has its own risk profile and regulatory requirements. RaymanTech configures its systems precisely for your application.

Food Industry:

In food production, requirements set by standards such as HACCP, IFS, and BRC are extremely high. RaymanTech offers specialized solutions for every critical stage of production. For unpackaged raw materials such as meat, poultry, or fish, we use open designs with high IP protection ratings for wet cleaning. Pumpable products like soups, sauces, and pastes are inspected through our pipeline systems before filling. The most common application is end-of-line inspection of packaged products, where we check cartons, pouches, and trays as the final step before shipping. For more in-depth information on the specific challenges and solutions in this sector, visit our page on x-ray food inspection.

Pharmaceutical Industry:

In the pharmaceutical industry, absolute precision and data integrity are essential. Our systems check blister packs for completeness, ensuring no tablet is missing or broken, while simultaneously detecting the smallest metallic particles in powders or liquids. For pharmaceutical x-ray inspection, our software meets the requirements for audit trails and user management under applicable regulations.

Technology Comparison: RaymanTech Eco-Series and High-End Solutions

We understand that investment decisions often have to balance technical necessity against budget pressure. Total cost of ownership (TCO) plays a decisive role here.

High-End Performance with Dual-Energy

For complex applications, we rely on dual-energy technology. This is necessary for products with highly irregular density or "noisy" images, such as bags of mixed salad, cereal, or overlapping products. Dual-energy systems use two different energy spectra simultaneously. By mathematically combining both images, the system can distinguish materials by their atomic number, making it possible to reliably detect flat glass shards or bone fragments even in highly complex product structures.

Cost Efficiency with the Eco-Series

Not every application requires high-end technology. With the RaymanTech Eco-Series, we offer a powerful entry point into x-ray technology. This series is optimized for standard applications with homogeneous products, delivering full compliance functionality and high detection accuracy at reduced energy consumption and an attractive acquisition cost. The Eco-Series is ideal for replacing outdated metal detectors when you want to raise your safety standards without blowing your budget.

Integration Into Your Production Line

Introducing an x-ray inspection system is more than simply installing a machine — it's about seamless integration into your physical processes and your data landscape.

Mechanical Integration and Hygiene

Our compact designs allow retrofitting even into tight line layouts. We adapt working heights and belt widths precisely to your setup. We pay particular attention to hygienic design: sloped surfaces let water drain away, and conveyor belts can be removed tool-free for cleaning, minimizing downtime during washdown.

Data Management and Industry 4.0

Every RaymanTech system is built for the digital factory. Audit-relevant data is logged without gaps, including reject images, log files, system status, and the results of regular test-piece checks. This information can be transmitted automatically to your ERP system or quality management software, making audits stress-free since every record is available at the push of a button.

Reliable Rejection

Even the best detection system is only as good as its rejection mechanism. To minimize false rejects, we offer precise pushers, air blast nozzles, or flap mechanisms. Sensors monitor whether the defective product was actually removed from the good-product stream and whether the reject bin is full.

Looking to combine x-ray with other technologies? We're happy to advise you on intelligently networking your line with industrial metal detectors or optical sorting systems, to build a seamless safety chain.

Secure your production.

Don't take risks with foreign-body detection. A single recall costs far more than the investment in safe technology. Let's work together to determine whether an x-ray inspection system or a combined technology is the right solution for your line.

FAQ

Here we answer the questions quality managers and technical leads ask us most often.
What is an x-ray inspection system?

An x-ray inspection system is a piece of industrial quality-control equipment that passes products through a low-dose x-ray beam to detect foreign bodies — such as metal, glass, stone, or bone — as well as to check fill levels, product completeness, mass, and package integrity. Unlike a metal detector, which relies on electromagnetic fields, an x-ray inspection machine reads differences in material density, which is why it can also see materials that traditional detectors miss.

Is x-ray inspection of food safe?

Yes. The energy used in industrial x-ray inspection is extremely low and does not affect the product in any way — taste, texture, and nutritional value all remain unchanged. Food that has passed through x-ray inspection is entirely safe to eat, is not subject to any labeling requirement, and is not qualitatively different from unscanned product. The process is recognized and approved worldwide.

How safe are the machines for my employees?

Employee safety is our top priority. Every RaymanTech system is extremely well shielded — radiation outside the housing is far below strict legal limits, often lower than the natural background radiation we're all exposed to every day. Redundant safety interlocks and monitored emergency-stop systems reliably prevent operation whenever a safety door or maintenance hatch is open.

What's the difference between single- and dual-energy?

Single-energy systems use one x-ray beam and work extremely well for detecting metal, glass, or stone in homogeneous products such as yogurt cups or chocolate. Dual-energy technology uses two energy spectra (high and low) at the same time, allowing the software to differentiate materials far more precisely. This drastically reduces the false-reject rate on complex products such as cereal bags or salad packs, since natural product variance can be filtered out.

Can x-ray scanners fully replace metal detectors?

In many cases, yes. X-ray inspection systems are often superior to metal detectors at detecting stainless steel and non-ferrous metals, especially when products use aluminum-coated packaging or metallized film. For pure iron detection, or at very high bulk-flow throughputs, metal detectors can still be a cost-efficient solution, and classic coil detectors also have an edge with tall products in free fall. Combining both technologies often delivers the highest level of safety for your CCPs.