Automotive wheel coating

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Sames Wheel Coating Solution – Base Coat & Clear Coat Application

Improve finish quality, reduce operating costs, and achieve rapid ROI with Sames solutions for wheel coating applications.

Description

Liquid base coats and clear coats define the final appearance, durability, and brand identity of modern alloy wheels. Sames provides a complete, high‑performance application package built around electrostatic rotary bells, precision gear‑pump dosing, and high‑efficiency Airspray guns. These technologies integrate seamlessly into both conventional coating booths and advanced tracking systems used by wheel manufacturers.
Paint is continuously circulated at low pressure to the applicator, maintaining consistent material conditions and reducing waste during color changes. Precision volumetric gear pumps accurately meter the paint, ensuring repeatable and consistent film thickness.
For base coat applications, the Nanobell 803 and PPH 707 electrostatic rotary bells produce ultra-fine paint droplets that generate a strong electrostatic wraparound effect, ensuring consistent coverage of spokes, pockets, and rim edges. The result is a uniform finish with high transfer efficiency and minimal overspray. To maximize coverage, TRP500 electrostatic guns and A25 Airspray guns are used alongside the rotary bells to coat recessed and difficult-to-access areas, making them ideal for large-diameter wheels and intricate spoke geometries.
For high-speed paint lines using tracking machines, Sames applicators integrate seamlessly with the tracking system. By maintaining an optimal spray distance throughout wheel rotation, Sames bells and guns provide:
  • Uniform film build at line speeds exceeding 3.5 m/min
  • Less rework and reduced manual touch-up
Together, these technologies create a robust, high-productivity coating process that minimizes paint consumption, maximizes first-pass yield, and delivers a premium finish across applications ranging from mass-market alloy wheels to high-performance rims.

Main benefits

Productivity: Increase line throughput on both standard and high-speed conveyors with Sames electrostatic bells, which deliver high paint flow rates and can spray close to complex wheel geometries. Seamless integration with third-party tracking systems maintains a consistent spray distance, enabling uniform film build at line speeds above 3.5 m/min.
Efficiency: Reduce paint consumption by 30–50% compared to conventional non‑electrostatic guns through the superior wraparound effect and high transfer efficiency of Sames rotary bells. 

Coating Quality: Achieve uniform film build and excellent coverage on intricate wheel geometries through ultra-fine bell atomization, powerful electrostatic charging, and complementary TRP500 and A25 guns to coat recessed and hard-to-reach areas. Together, these technologies deliver a consistent, premium finish across all wheel designs.
Process Reliability: Ensure stable, repeatable coating performance through gear pump paint dosing, precise flow control, and low‑dead‑volume color‑change blocks. These technologies enable fast, low‑waste color changes, minimizes rework, and consistently delivers high first‑pass yield.

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Automotive wheel coating FAQ

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  • How many bell sprayers are necessary to meet production output?

    Sames determines the optimal number of bells based on wheel size, conveyor speed, booth layout, and required film build. While the detailed calculation methodology is part of our internal engineering know how, our teams have designed and commissioned numerous wheel coating installations worldwide. This experience ensures that every project benefits from proven practices, validated configurations, and reliable performance at both standard and fast speed production lines.

  • Can the solution work with waterborne paint?

    Yes. Sames provides dedicated equipment for both solventborne and waterborne basecoat and clearcoat. Waterborne paints require specific applicators, insulation strategies, and fluid delivery components. Sames offers fully compatible solutions for each technology. Our portfolio ensures optimal atomization, charging, and finish quality regardless of the paint family used.

  • What is the difference between the Nanobell 803 and the PPH 707?

    Both the Nanobell 803 and the PPH 707 deliver the same high level atomization quality and transfer efficiency. The difference lies in their features: Nanobell 803 is a robust, accessible entry level bell ideal for standard wheel applications, while PPH 707 integrates advanced options such as quick disconnect, double circuit capability, 2K-version and broader range of bellcups - for automotive-body specially. The final choice depends on customer specifications, required flexibility, and integration needs.

  • Does Sames have references for wheel coating applications?

    Yes. Sames equipment is installed at many of the world’s most recognized OEMs across APAC, EMEA, and the Americas. Our solutions are used daily in high volume wheel production lines, from mass market alloy wheels to premium and performance segments, demonstrating strong global credibility and long term reliability.

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