Dejoie

La Fonderie Dejoie, established in 1929 in Nantes, France, is an experienced manufacturer specializing in high-precision aluminum casting and advanced security seals. As a subsidiary of the LEMER group since 1988, Dejoie leverages nearly a century of industrial expertise to design, manufacture, and distribute a comprehensive range of products and services for demanding clients in France and internationally. The company offers a complete value chain, from design office services (CAD, CAM, numerical simulation) to gravity die casting, custom finishing (grinding, tribo-finishing, ball polishing), machining (drilling, tapping), ROHS-compliant chrome-free surface treatment, liquid paint application, and complex assembly with components like sheet metal or plastic, providing ready-to-use parts. Dejoie produces raw, semi-finished, and finished aluminum parts, simple or complex, in small to medium series (100 to 20,000 pieces per year, 50g to 15kg). In addition to aluminum, they provide a wide array of security seals including plastic (progressive or fixed tightening), metallic, lead, numbered, personalized, colored, recyclable, and biodegradable options. These products ensure inviolability, traceability, and access control for diverse sectors such as medical, industry, transport, logistics, security, energy, public institutions, and agro-food. Notably, La Fonderie Dejoie has been the exclusive manufacturer of the iconic yellow French Post Office mailboxes since 1949. The company focuses on innovation, performance, and sustainable development, offering fast delivery and customization possibilities to meet specific industrial requirements.