Assembly and ultrasonic welding:

precision for your plastic parts

Custom solutions in tooling and plastic injection, assembly, and LED/UV printing to bring your plastic projects to life.

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+33 (0)4 73 51 57 24

A finished product, beyond plastic injection

At APA Injection, we know that the quality of a plastic part is not limited to its thermoplastic injection. Assembly and finishes play an essential role in ensuring a reliable, aesthetic, and functional finished product. That’s why we have a workshop dedicated to finishing operations with techniques adapted to each need.

Custom tooling design for plastic injection by APA Injection
A versatile finishing workshop

Mechanical and digital ultrasonic welding

We master ultrasonic welding, a fast, clean, and precise technique that allows for the durable assembly of two plastic parts:

Mechanically controlled ultrasonic welding, faster for robust and repetitive applications with the possibility of insert placement.

Digitally controlled ultrasonic welding, for even finer control and custom adaptation to material constraints with the possibility of insert placement.

This technology guarantees strong, invisible welds that perfectly comply with industrial requirements.

LED/UV printing on plastic parts for aesthetic finish

Bonding and marking: personalized finishes

UV Bonding

UV bonding allows for durable and aesthetic fastening. This innovative process ensures high precision, ideal for parts requiring a clean and neat finish.

UV Print Marking

We also offer LED/UV print marking, a customization solution for your plastic parts. This process guarantees a clear, durable, and resistant finish, perfectly adapted to aesthetic and technical requirements.

End-to-end customization

Manual and technical expertise

Unlike fully automated processes, assembly at APA Injection remains an operation that requires meticulousness, patience, and human expertise. Our technicians perform each assembly piece by piece, thus ensuring impeccable quality and continuous control.

This support guarantees the delivery of plastic parts ready to be integrated into your assembled and finalized item.

Why make APA Injection your subcontractor?

A trusted partner for your plastic injection projects

Multiple Technologies

Welding, mechanical and digital ultrasonic insert placement, LED/UV bonding, LED/UV printing.

A comprehensive offer

From tooling design to injection, up to assembly and final customization.

Custom finishes

Adapted to each client's needs.

Qualified technicians

Ensuring meticulous work piece by piece.