Innovation & Technology Welcome to Sonplas

Sonplas is a leading manufacturer of assembly and testing equipment and provides turnkey solutions in the areas of fuel injection, electric mobility, aerospace and automotive safety systems.

Since more than 20 years we have been your partner in hydroerosive deburring (HE) of bore intersections / edges.

In our research and development department we are able to continually meet the latest technical requirements in the market.

We are a globally operating company and guarantee our customers a fast and flexible response time to the respective requirements.

On-site service is provided by service organizations in the US, China, India, Brazil, Korea, Japan, Romania and Italy.






Delivered machines


Satisfied customers



News about Sonplas

Sonplas visiting Clever in Cheongju (South Korea) in February 2020 7. August 2020 pouch cell project Completed Production Building 20. April 2018 Sonplas completes new assembly and production building Neubau 1. December 2017 New production building 27. November 2016 9. Conference Diesel and gasoline injection 27. September 2015 ... and the winner is.... SONPLAS!