Prefabrication and installation of storage tanks and pressure vessels

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Prefabrication and installation of storage tanks and pressure vessels

Our business focuses on prefabrication and installation of API650/620 y EN14015 storage tanks, ASME VIII div.1 and EN13445 pressure vessels and design, construction and assembly of all types of industrial plants, as well as other kind of equipments in the field of boiler-work. 

Dimoin Calderería is located in one of the most growing industrial area with a greater projection of Madrid Region. Our facilities count with more than 7,500 m2, with an office area of 450 m2, workshops area of 3,000 m2 and a warehouse space of 1,100 m2.


  • 8 cranes
  • 3 bender cylinders to curve from 4 to 40 mm
  • SMAW machines
  • GMAW / GTAW machines
  • SAW machines
  • Hand drills
  • Lathe
  • Profile bending machine
  • Chamfer machine
  • Shear machine
  • Folding machine
  • NC plasma cutting
  • Oxicutting
  • Punch press
  • Saws
  • Mechanical jacks for tanks assembly
Prefabricacion y Montaje de tanques y Depósitos a presión






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Service guarantee

Our greatest asset is our employees, marked by their technical profile and forming a highly qualified professional team with an extensive experience in this field. It consists of engineers, designers, boilermakers and welders, among others, fully specialized in their activity and clear customer-focus.

  • Ingenieros
  • Proyectistas
  • Delineantes
  • Administrativos
  • Caldereros
  • Soldadores
  • Ayudantes

Quality in your projects

Currently, DIMOIN is registered in the Dirección General de Industria, Energía y Minas of Madrid Region, in the following sections:

  • Manufacturer of pressure vessels
  • Installers of pressure vessels
  • Installers of petroleum products

Moreover, with the aim of providing the best service to our customers, DIMOIN dedicates multiple resources to ensure the highest quality for each of our products, for which we are certified by ISO 9001. We are also in possession of the certificate Repro No. 303453.


The U stamp awarded by ASME

Obtaining the ASME U stamp means not only maintaining the usual standards, but also added a number of controls with a higher degree of demand.

As a sign of growth and development, DIMOIN got recently (December 2013) the “U” stamp awarded by ASME, which allows us to work in markets where the possession of that certificate is required. Such is the case of the U.S.A, Canada, Arabian countries and other areas that are becoming it in an essential requirement. In fact, we have an office in Bogota, which serves all of South America, and one in Equatorial Guinea. We also work in strategically important countries like Russia and Belarus, among others.


We design, manufacture and assemble in shop and on site

  • API 650 & 620 Tanks
  • Pressure vessels acc. ASME VIII Div. 1 (U stamp if required)
  • Others atmospheric or pressure tanks /vessels
  • Reactors
  • Tank repairs acc. API 653
  • Silos
  • Hoppers
  • Boiler-working equipment

Tell us about your project, and contact us

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