T. Silor: A potential family business with a heavy workload, one of the last to machine for die-making

After moving its facilities from Sondika to Abanto y Zierbena, the firm consolidates its high precision, backed by giants like Gestamp, and supports the Provincial Councils.News Body:Abanto y Zierbena, August 14, 2026 – In an industrial landscape marked by market transformation and the loss of traditional technical trades, Transportines Silor S.L. is consolidating itself as an indispensable player for advanced manufacturing. With over four decades of experience since its founding in 1981, this small family business stands out today as one of the last machining firms in the Basque Country specializing in the demanding die-making sector.The manufacturing and machining of all types of parts for die-making requires an extremely high level of precision, experience, and robustness, critical capabilities that are scarce in the current market due to their complexity and the lack of generational succession. To respond to its growth and undertake larger-scale projects, the company has taken a giant leap by moving its operations from its old facilities in Sondika to a new plant in the El Campillo Industrial Park, in Abanto y Zierbena. This strategic location, equipped with gantry milling machines and state-of-the-art CNC machining centers, allows them to comprehensively process complex, large-dimension parts weighing up to 10 tons.Silor's maximum reliability in this field is backed by its close relationship with leading automotive firms; the family business is proud to be supported by and work alongside global automotive leaders such as Gestamp, a clear reflection of the rigor and quality they apply to each project. From this high-precision core, they have extended their technical capabilities to general industry and engineering, also manufacturing approved road solutions (CE marking) such as tow trucks and chocks for public administrations like the Provincial Council."Die-making is a technical discipline that demands a very deep knowledge of metal; that's why we are among the last machining companies capable of undertaking it in Euskadi. Having the trust of a leading firm like Gestamp shows that family workshops and traditional trades can compete at the highest technological level," explain Silor's management. "The move to Abanto y Zierbena gives us the necessary space to continue growing and serving with maximum agility both the Provincial Councils with their road services and the most demanding industrial firms in Gipuzkoa, Álava, and Bizkaia."