Universeal
Manufacturing of a Unique Mold for a Two-Color Product
Process Optimization for Better Reliability
The original Universeal product was manufactured using two separately molded components that were later assembled using ultrasonic welding.
This process presented several limitations:
- Variable reliability: an imperfect weld could lead to part separation.
- Risks to the quality and integrity of the final product.
- Multiple manufacturing steps and manual handling.
- A process that was difficult to stabilize over the long term.
The objective was therefore to develop a more robust and automated manufacturing process while preserving the product’s distinctive two-color appearance.
Our Solution
We developed an integrated manufacturing approach based on a two-step overmolding process.
Key actions included:
- Molding a base substrate followed by overmolding with a second colored material.
- Integrating color coding directly into the mold, eliminating the aesthetic assembly step.
- Designing a precise internal geometry to preserve the space required for the later pin assembly.
This approach transformed a fragile assembly process into a robust and integrated manufacturing solution.
The Result
The new process combines molding, identification, and assembly within an automated production flow:
- Laser engraving of the serial number between plastic layers, protected from wear.
- Automatic pin assembly directly at the molding cell output.
- Continuous production without manual handling.
Production is now more stable, more predictable, and easier to operate.

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