Robotic painting of train component

Let’s talk about your project

Spray 2K-WB paint with Airmix automatic guns

Save up to 30% of paint. Return On Investment usually between 12 to 24 months.
Automatize, save up to 35% of paint, 25% of cycle time and obtain highest finishing quality with Sames robotic Airmix® automatic gun combined with a automatic 2K-mixing machine

Description

This high-pressure Airmix® solution enables robotized coating of train components of various geometries, ensuring perfect covering of parts with complex shapes, while keeping high productivity & efficiency
Basecoats of different colors are agitated inside their drums, hardener is kept out of moisture in its sealed drums. Both are pushed to the automatic 2K-mixing machine with piston pumps. Then the hardener is pumped from a sealed tank with the unique FlowMax® pump fully sealed (that prevent hardener get in touch with humidity). Once requested, they are freshly mixed and delivered to the automatic guns through pressure regulator - 1 for each gun. When job is finished or whenever pot-life of the mixed paint is almost ended, the robots are automatically moving the guns up to their flushing and cleaning boxes.

Related products

CTM Color Change Valve

See product

Main benefits

Highest coating quality thanks to paint constant fresh mixing and Airmix® spraying technology

Efficient color change sequence, 0 downtime during changes and lowest amount of paint & solvent wastes

Unlimited color combination for each batch with no process limitation

Quick Return On Investment considering both the Paint Circulating System design and the selection of Airmix spraying technology.

Robotic painting of train component FAQ

Let's get in touch

  • What about using Airless instead of Airmix® here?

    Airless, Airmix® : finding the right balance for railway coating
    More details:
    Airless with standard tips
    - Very high output, fast coverage, ideal for thick protective coatings (anti-corrosion primers, heavy layers).
    - Limitation: finish quality is coarser, higher overspray and paint waste.
    Airless with SKILL Tips
    An intermediate solution between Airless and Airmix®.
    - By reducing pressure up to 50%, SKILL® tips improve atomization, reduce overspray, and boost transfer efficiency (up to 84%) while keeping Airless productivity.
    - Especially effective with waterborne or UV-cured coatings, offering a cost-efficient alternative when high finish quality is not mandatory.
    Airmix®
    - The reference technology for railway components: combines Airless productivity with Airspray-like finish quality.
    - Delivers fine atomization, excellent transfer efficiency (up to 86%), smooth surfaces, and consistent film thickness — essential for both primers and decorative topcoats.
    - Particularly suited for robotic application on complex geometries, reducing rework and paint consumption.
    With this range, Sames gives railway manufacturers maximum flexibility:
    - Airless with standard tip for fast, heavy coats.
    - Airless with SKILL® tips as the smart middle ground — Airless speed with improved finish and savings.
    - Airmix® for premium balance of quality and efficiency.

  • Why using Airmix® AVX gun for railway component coating?

    Railway components from bogies and chassis to interior fittings demand coatings that combine durability, safety, and efficiency.
    More details:
    The Airmix® AVX automatic gun is designed to meet these challenges:
    - Superior finish quality: Airmix® technology delivers a fine, even atomization with excellent transfer efficiency, ensuring smooth protective coatings with minimal overspray.
    - High productivity: When integrated on a robot, the AVX guarantees consistent coating quality across complex geometries, reducing rework and manual touch-ups.
    - Material & cost savings: Transfer efficiency up to 86% lowers paint consumption and VOC emissions meeting environmental regulations while cutting costs.
    - Proven robustness: Designed for heavy-duty industries, the AVX offers long maintenance intervals and reliable performance, even in high-throughput production lines.
    - Flexibility: Suitable for solvent-based or water-based paints, single- or two-component systems, making it versatile for the wide variety of railway coatings (anticorrosion primers, fire-retardant layers, decorative topcoats).
    => With Airmix® AVX, railway manufacturers and component suppliers secure consistent quality, paint versability, and optimized production efficiency.

  • Can the same robot spray both epoxy primer and PU topcoat?

    For such applications, a dual-gun solution may be a smarter and safer alternative.
    It is strongly not recommended to use the same fluid circuit for both epoxy primer and PU topcoat due to their chemically incompatible hardeners, which can lead to severe quality issues. However, alternative solutions exist depending on the application constraints.
    More details:
    Epoxy and polyurethane (PU) hardeners react aggressively when mixed, making it highly problematic to use the same paint circuit, even with thorough flushing sequences. This can cause cross-contamination, poor coating quality, and major maintenance issues.
    There are two possible solutions to manage this challenge:
    Using two completely independent premixed supply circuits: This allows each coating to remain separate and avoid contamination.
    Using a dual-gun setup on the robot: Instead of a bell, using a double automatic spray gun system on the same robot is often the safest and most practical solution. Each gun is dedicated to a single material, ensuring a fully isolated fluid path for each coating.

Still have questions?

Let’s talk - our experts are just a message away.

Let's get in touch