About Coraci S.A.
Specialists in custom expansion joints since 1979.
Our Story
More than 45 years of experience in expansión joint manufacturing and engineering

1979.
The company is founded in Barcelona with a delegated workshop in Cantabria to supply the powerful industrial nucleus of the metallurgical, shipbuilding, and thermal power sectors in northern Spain.
1985.
We concentrate manufacturing activity in our own workshops in Manresa (Barcelona).
1998.
Our own technology is designed and developed, including the construction of a unique mechanical forming machine for large-diameter bellows.
2005.
The factory and offices merge in Cornellà de Llobregat (Barcelona), expanding our range of technical support and engineering services with specific stress calculation software.
2019.
Celebrating 40 years, we publish a new catalog and expand our technical assistance and engineering services.
2025.
More than 45 years of uninterrupted activity manufacturing metallic, rubber, and textile expansion joints, flexible hoses, and maintaining strong ties with engineering offices and industries related to water, gas, electricity, air conditioning, construction, railways, equipment, shipbuilding, metallurgy, thermal power, and related sectors.
Origin & Tradition
Modern Transformation
Our Core Values
With Coraci S.A., you will never work alone.
Technical Precision
Cada compensador se diseña con cálculos de ingeniería rigurosos, simulación FEA y cumplimiento de normativas internacionales (ASME VIII, PED, EJMA) entre muchas otras.
Customer Commitment
Personalised support from the first enquiry through to years after installation. Our technical team is available for emergencies.
Continuous Innovation
We invest in R&D to develop new proprietary designs and manufacturing techniques that improve performance and durability.
Certified Quality
ISO 9001 quality‑management system. Full material traceability, destructive and non‑destructive testing, and calibration certificates.