Flexibility and safety for process requirements

ZIEMANN HOLVRIEKA designs, manufactures and installs high-quality tanks for solid and fluid products and complete stainless steel turnkey plants for the chemical, pharmaceutical and life science industry:FermenterFermenter

  • Storage and process tanks
  • Pressure and vacuum tanks
  • Reactors
  • Fermenters
  • Explosion-proof tanks
  • Tanks with individual heating/cooling and insulation
  • Silo plants
  • Homogenising and blending silos with degasification units
  • Drying and cooling silos

ZIEMANN HOLVRIEKA meets all the relevant national and international standards for the abovementioned industries.


Tanks are welded in accordance with Plasma, WIG, MAG and UP processes. ZIEMANN HOLVRIEKA processes materials such as stainless steel, duplex steel, nickel steel, incoloy and hastelloy as required by the predefined norms and standards. A key element in the manufacturing of tanks is the quality of the internal tank surface. All welding seams and tank bottoms are polished. All inner surfaces of the cone can, by customer request, also be electro-polished. Initially, surface values lie within a minimum of Ra-values. The quality of the welding seams is assessed using state-of-the-art methods and documented in accordance with customer requirements. One-piece tanks are inspected and certified by in-house quality control personnel and/or an independent testing institute before delivery.

On-site fabrication of tanks

If it is not possible or not economically viable to transport a large tank in one piece, ZIEMANN HOLVRIEKA manufactures tanks in mobile production centres ‘on-site’ without risking any loss of quality compared to factory production. The individual parts of the tank are transported to and assembled on the construction site. ZIEMANN HOLVRIEKA are the experts in the field of ‘on-site’ construction with numerous renowned references worldwide.