We are attsuklaus s.l.

We are a company specialized in the design, development and manufacture of autoclaves for all industrial sectors, with the aim of offering to our customers the tailored product to suit their needs.

We are part of the ATTSU Industrial Group, manufacturers of boilers and pressure vessels since 1934, with a long history in the development of products for the generation, recovery and transport of heat for national and international brands. We carry out our activity in our four factories in Spain: Celrà (Girona), Sant Julià de Ramis (Girona), Móstoles (Madrid) and Paterna (Valencia).

The high technology and the ATTSU Industrial Group R+D+i center, plus our team of technically qualified specialists, allows us to offer innovative, safe and highly competitive products.


To satisfy needs of customers that need pressure equipment in industrial production processes, especially autoclaves.


ATTSUKLAUS will consolidate and enhance its national and international prestige through excellent management and vocation for quality, innovation and service to its customers.


We only believe in honest business.

We comply with what we had agreed because we cannot understand business in any other way. Seriousness and commitment to our customers, suppliers and employees. They are our pillars.

ATTSUKLAUS Group, understands that its way of doing business and company management, should be directed to the voluntary integration of social and environmental concerns, including relationship with its main interlocutors, all within the framework of Corporate Social Responsibility (CSR).

A company is socially responsible, when it fully complies with its legal obligations and intends to move forward, investing in human capital, in the environment and in relations with its interlocutors (employees, business partners, suppliers, consumers, public authorities and NGOs that defend the interests of local communities and the environment).

As a summary, we will say that ethics, good management and good practices are the basis of CSR, therefore ATTSUKLAUS is not sparing effort or means to achieve it.

Our manufacturing certificates

Certifications of the different factories of the ATTSU Industrial Group, by which our autoclaves and complementary equipment are manufactured.

ASME Certificate

The National Board - ASME

Quality politics