Bike frame coating with electrostatic rotary bell
Let’s talk about your projectSpray liquid 1K-WB coating on bike frame with electrostatic rotary bell
Access complex shape parts, paint waterborne material continuously and save up to 50% of paint with Sames external charge rotary bell.
Description
Paint is continuously supplied and circulated at low pressure up to the robot arm, ensuring stable material conditions while significantly reducing waste.
During application, paint is precisely metered from the color-change block using high-accuracy volumetric gear pumps.
The coating is then atomized by a high-speed rotary bell and electrostatically charged in-flight using the external charge electrodes of the PPH 707 EXTi.
This technology ensures:
- High transfer efficiency
- Uniform film build
- Reduced overspray and material consumption
The fingerless external-charge design enables the robot to spray very close to complex tubular geometries.
This results in:
- Excellent wrap-around effect on bike frames
- Simplified robot trajectories
- Improved coverage of intricate areas
Its compact design allows easy access to confined geometries, while the intelligent high-voltage controller continuously adjusts voltage to remain just below the spark threshold, ensuring both safety and process stability.
Where required, minimal manual touch-up can be performed to achieve perfect cosmetic finish.
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Main benefits
Productivity: Compared to a conventional omega booth, the robotic solution maintains the same output while drastically reducing downtime during color changes.
Instead of 10–15 production gaps per change, only one is required significantly improving line efficiency and throughput. Color changes in 15 seconds, with only 40-50 cm³of paint loss. A robot arm can carry many colors, typically 24.
Efficiency: Reduce paint consumption by up to 50% vs. disc systems in omega booths, thanks to precise robotic application along the bike frame geometry and the outstanding transfer efficiency and wrap-around performance of the electrostatic rotary bell.
Coating Quality: Ensure uniform film build and excellent coverage on intricate engine shapes, made possible by the powerful external electrostatic charging and fine atomization of the PPH 707 EXTi.
Process Reliability: Guarantee consistent 2K performance with precise volumetric gear pump dosing, fully sealed hardener circulation, and final-stage static mixing for optimal material control and reduced rework.
Bike frame coating with electrostatic rotary bell FAQ
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Why use an electrostatic rotary bell for bike frame painting?
High transfer rates, achieved by ultra-precise trajectories optimized for the part to be painted. With an electrostatic bell, this rate can reach 70-80%, even with unfavorable geometries like tubular bike frames.
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Is electrostatic spraying effective on tubular shapes and hard-to-reach areas?
Yes. The external charge and fingerless design of the PPH 707 EXTi allow the robot to spray very close to intricate and tubular shape of bike frames. This enables excellent coverage on complex geometries, minimizing shadow areas and reducing manual touch-up operations.
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How can I reduce paint consumption in bike frame coating operations?
By switching from disk in omega booth to an electrostatic rotary bell system, manufacturers can achieve up to 50% higher transfer efficiency. This reduces paint waste, lowers VOC emissions, and improves overall coating cost efficiency.