The Grolleau OMP Group Industrial sites
Our group has 4 industrial sites worldwide composed of administrative offices, an R&D center and a production site:
- Montilliers, France (18,000m²)
- Milan, Italy (12,000m²)
- Shanghai, China (6,000m²)
- Guadalajara, Mexico (4,000m²)


Production means
The production line is perfectly adapted to sheet metal transformation, but above all to the integration of your sensitive components within the created and manufactured enclosures.
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Thanks to its on-site integrated production means, GROLLEAU provides you with efficient product manufacturing as well as total, partial, or bespoke integration of your equipment and finished products.
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An EMC zone is reserved to integrate your sensitive circuits. At the end of the line, we perform electrical and functional tests.
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Production site in Montilliers (France)
Grolleau’s production site consists of two juxtaposed buildings:
- a 7000m² Sheet Metal & Welding Unit (aluminium, stainless steel, steel…),
- a 1000m² Painting Unit,
- a 10,000m² Assembly, Integration & Testing Unit.
The production team, supported by the Methods Department, is able to respond in real-time to customer orders and product configuration changes.
Thanks to its integrated BAAN Management system and the close collaboration of the Sales Administration Department, GROLLEAU ensures a 98% delivery rate and delivers to 15 different customers every day.
ISO 9001 and EN 15085 certified site