Non-Destructive Control of critical equipment
Let’s talk about your projectDye penetrant testing solution for aerospace parts
Ensure repeatable high‑sensitivity inspection results, and sustain aerospace compliance using Sames dedicated electrostatic spraying systems and powder feed units leveraging decades of aerospace culture and NDT expertise.
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Dye Penetrant Testing (DP) is a Non-Destructive Testing (NDT) method used to detect surface defects, such as cracks, porosities, or holes on metallic parts without altering their visual, mechanical, or structural properties. This inspection process is critical in industries where safety and reliability are paramount, such as aerospace, nuclear, and defense.
A complete NDT installation typically involves two key applications:
Penetrant: A liquid dye applied to the part to reveal surface flaws. It can be electrostatically sprayed using manual equipment like the Nanogun+ Airspray, ensuring uniform coverage and minimal waste.
Developer: A fine powder that helps draw out the penetrant from defects, making them visible during inspection. It requires precise application, typically with a CSV230 powder feed unit paired with the Inogun M powder applicator, allowing for a consistent and ultra-low flow rate.
Depending on sensitivity needs, up to four different penetrants may be used, each requiring its own dedicated applicator to avoid cross-contamination.
For high-throughput environments, such as in aerospace or automotive manufacturing, automated NDT lines can be equipped with electrostatic liquid applicators like the TRP gun, rotary bell Nanobell 803, and the Inogun A powder gun, ensuring efficiency, repeatability, and high process control.
Related products
TRP501 Automatic electrostatic spray gun
Nanobell 803 Automatic
Inocart NDT
Inogun A and A FCC
Main benefits
Unmatched Powder Precision: Our CSV230 pressurized pot ensures ultra-low and consistent powder flow — no puffing, no waste, perfect for developer application.
Exclusive Technology Advantage: Unlike competitors using Venturi systems, our powder delivery is smoother, cleaner, and more controllable — a unique edge in the NDT market.
Cost-Effective Excellence: The Inocart NDT package delivers superior performance at a competitive price (~8,000€), offering both technical and financial benefits.
Electrostatic expertise across applications: From manual Nanogun to automated bells Nanobell, our electrostatic liquid sprayers guarantee uniform coverage and optimized penetrant usage.
Non-Destructive Control of critical equipment Solution FAQ
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How can I avoid cross-contamination when using multiple penetrants in the same inspection process?
To prevent cross-contamination during Dye Penetrant Testing, each type of penetrant must be applied using a dedicated applicator. This is especially critical in aerospace and defense industries where high-sensitivity inspections require strict process control.
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Are there alternative or emerging dye penetrant testing processes beyond the standard method described?
Yes, while the standard dye penetrant testing (DPT) process remains the most widely used, several alternative methods are emerging, particularly within the aerospace industry. Some advanced penetrants are now self-developing, eliminating the need for a separate developer step and simplifying the overall inspection process. In other cases, liquid developers are used instead of powder, and these often require continuous recirculation systems to ensure a uniform and effective coating.To ensure optimal application of these newer penetrants and developers, some may require specific pumping technologies tailored to their viscosity or chemical nature. This emphasizes the importance of choosing the right equipment setup in addition to the right process.Overall, the field of DPT is a highly diverse and technically nuanced domain. Describing it through a single, mainstream method can be reductive, as variations in materials, application needs, and inspection environments often require customized approaches. That’s why it’s always safer and more efficient to rely on an experienced partner like Sames, who can provide tailored guidance, technical support, and equipment solutions adapted to your exact needs. -
Can Sames equipment be integrated into existing NDT inspection lines?
Yes, Sames spraying solutions are designed to be easily integrated into existing NDT installations. Whether your line is manual, semi-automatic, or fully automated, we offer modular equipment and adaptable technologies to suit your configuration. Our electrostatic guns, pressurized powder feed units, and automated applicators can be installed with minimal disruption, thanks to compact designs and user-friendly control systems. We also support integration through technical guidance, commissioning support, and training—ensuring a smooth transition and immediate performance benefits.