Coating of military vehicle

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Airmix spraying of 3K epoxy primer and PU topcoat with robot

Robust automated coating system designed for reliability and continuous production

Description

The coating system ensures high and consistent quality by pumping paint, hardener, and thinner separately and mixing them only during spraying. This guarantees a fresh, stable mixture at the gun.

Product feeding:  
Large piston pumps draw paint directly from drums, which can be equipped with agitators to prevent sedimentation. The hardener is supplied from a sealed tank using the Flowmax® pump, whose fully sealed design prevents humidity contamination. One pumping station can feed several mixing units, and each unit can supply two spray guns.

3K mixing:  
The Cyclomix® Evo proportions and mixes components in real time. Pot‑life monitoring, color changes, purging, and cleaning are fully automated, reducing operator workload and eliminating manual errors.

Dual paint circuits:  
Because epoxy primers and PU topcoats are incompatible, the installation uses two independent paint circuits from the paint kitchen to the robot. The robot carries two Airmix guns, one for each product family.

Robotic application:  
A 6‑axis robot on a 7th linear axis performs precise trajectories to coat exterior surfaces, interior cavities, and complex geometries, ensuring repeatable, high‑quality coverage.

Manual finishing:  
Painters can intervene for touch‑ups or camouflage layers when required.

Featured products

Main benefits

Flowmax® Pump: Zero Maintenance. No servicing required for up to 8 years, even with isocyanates, maximizing uptime and reducing maintenance costs.

Robotization: Stable Quality. Ensures consistent coating quality and reliable production, while addressing the growing scarcity of skilled manual painters.

Automatic Mixing: No Rework. Precise proportioning and always-fresh paint eliminate mixing errors and improve process reliability.

Mix-on-Demand: Less Waste. Cyclomix® Evo 3K machine mixes only what is needed, cutting paint and solvent waste by up to 50%.

Military vehicle FAQ

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  • Struggling with 3K paint mixing?

    Stop Wasting Paint, Time, and Resources with Outdated Methods
    Manual 3K paint application can be messy, wasteful, and time-consuming. But it doesn't have to be.
    Automated mixing and dosing solutions bring consistency, reduce material loss, and streamline the process, so you can focus on delivering quality results.
    Discover a Smarter Way to Apply 3K Coatings

    The Hidden Drawbacks of Traditional 3K Paint Application
    Professionals using two-component coatings often deal with:
    ❌ Unreliable Mixing – Incorrect ratios can cause curing problems and poor adhesion, leading to rework.
    ❌ Short Pot Life – Wasted paint and clogged equipment are common, increasing downtime.
    ❌ Excessive Cleaning – Frequent solvent flushing increases costs and raises environmental concerns.
    ❌ Manual Errors – Skilled operators are essential, but even they aren’t immune to mistakes.

    How Automation Changes the Game
    ✅ Accurate Mixing on Demand – Perfect ratios every time, with less material loss.
    ✅ Cleaner Equipment – Less cured paint in the system means fewer maintenance headaches.
    ✅ Reduced Solvent Usage – Automated rinsing cuts waste and improves regulatory compliance.
    ✅ Repeatable Quality – Consistent performance ensures top-tier finishes on every job.

    Still mixing 3K paint by hand? It might be time to calculate the real cost of waste, downtime, and rework.
    Talk to us about upgrading to an automated mixing and dosing solution.

  • Why should I select Airmix® technology?

    Struggling with overspray, uneven coating, or wasted paint? Airmix technology bridges the gap between Airless and Airspray, delivering the perfect balance of efficiency, quality, and control.

    See More?
    The Hidden Advantages of Airmix:
    Are You Missing Out on Efficiency & Quality? Painters often face a trade-off: Airless for speed, Airspray for quality. Airmix eliminates this compromise, offering:
    - Higher Transfer Efficiency – Reduce paint waste and improve cost savings.
    - Superior Finish Quality – Even thickness and perfect coverage, including hidden areas.
    - Faster Application – Apply a single thick coat, cutting process time.
    - Automation-Ready – Increase production capacity by over 30% with minimal effort.

    If you're looking to improve productivity, reduce waste, and achieve a flawless finish, Airmix technology is the solution. Let’s explore how it can optimize your process.

  • Can I spray epoxy-based primer and PU-based topcoat with the same equipment?

    No, it's not recommended to use the same mixing and spraying equipment for both epoxy primers and polyurethane topcoats due to chemical incompatibility between their hardeners. Separate circuits or strict equipment isolation must be considered to avoid cross-contamination and ensure finish quality.

    Epoxy systems typically use amine-based hardeners, while PU coatings rely on isocyanate-based hardeners. These two types of hardeners are strongly incompatible: even trace contamination during cleaning or color change cycles can lead to gelation or clogging inside the mixing equipment, poor adhesion or finish defects on the coated part and reduced shelf life of mixed paint or altered curing behavior.
    This incompatibility is especially critical for 2K or 3K dosing systems using shared paint circuits or flushing lines.
    The Best Practice is to use fully separate dosing/mixing equipment (2x Cyclomix

    No, it's not recommended to use the same mixing and spraying equipment for both epoxy primers and polyurethane topcoats due to chemical incompatibility between their hardeners. Separate circuits or strict equipment isolation must be considered to avoid cross-contamination and ensure finish quality.

    Epoxy systems typically use amine-based hardeners, while PU coatings rely on isocyanate-based hardeners. These two types of hardeners are strongly incompatible: even trace contamination during cleaning or color change cycles can lead to gelation or clogging inside the mixing equipment, poor adhesion or finish defects on the coated part and reduced shelf life of mixed paint or altered curing behavior.
    This incompatibility is especially critical for 2K or 3K dosing systems using shared paint circuits or flushing lines.
    The Best Practice is to use fully separate dosing/mixing equipment (2x Cyclomix EVO or equivalent), or at least separate paint circuits with manual or semi-automated switching and dedicated flushing routines. This is especially true in the defense industry, where risk management and process traceability are held to the highest standards.
    In robotic application, if requested on the same robot, dual spray guns mounted on a robot (one for epoxy, one for PU) are often a more secure solution.
    SAMES can assist you in designing safe, efficient multi-product solutions, based on your cycle time, quality constraints, and maintenance preferences. Contact us to evaluate the best configuration for your process.

    Evo or equivalent), or at least separate paint circuits with manual or semi-automated switching and dedicated flushing routines. This is especially true in the defense industry, where risk management and process traceability are held to the highest standards.
    In robotic application, if requested on the same robot, dual spray guns mounted on a robot (one for epoxy, one for PU) are often a more secure solution.
    Sames can assist you in designing safe, efficient multi-product solutions, based on your cycle time, quality constraints, and maintenance preferences. Contact us to evaluate the best configuration for your process.

  • How to select the correct tips of my Airmix® sprayer?

    The first two digits XX show the caliber of the orifice, directly linked to the flow rate
    The following digits YY, are related to the width of the spray pattern at the standard distance of 25cm (10in.)
    The digit Z defines the type of paint and fan geometry: water based, solvent-based, or assymetric solvent-based
    (assymetric fan: same width as a standard one but the flow of paint is higher on one side (70%) than on the other (30%))
    FOR EXAMPLE:
    Apply 0.6L/min at 120 bar of waterbased paint with a spray pattern of approximately 25 cm
    XX -> Caliber #09 will deliver the appropriate flowrate at 120 bar
    YY -> Width #11 for a spray pattern of 25 cm
    Z -> #2 : buse Xtra fine finish for water-based materials
    The part number of the tip will be: 134.5XX.YYZ
     134.509.112

    This is an extract of the Sames Airmix® catalogue. Please refer to it for exhaustive information. 

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