Tanks & Vessels
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+359 42 600 657
Advanced Solutions for Industrial Tanks
At Hraninvest, we manufacture high-quality stainless steel tanks and pressure vessels engineered for high-performance applications mainly in the food and beverages, pharmaceutical and chemical industries. With a fully automated production line and decades of expertise, we deliver tailor-made solutions that ensure durability, hygiene and performance — even in the most demanding environments.
Our Capabilities
We offer full-cycle fabrication of vertical and horizontal stainless steel tanks in volumes from 0.5 m³ to 100 m³, with diameters up to 3,800 mm and wall thicknesses ranging from 1 mm to 16 mm. We also manufacture stainless steel pressure vessels, built to the same high standards of quality and compliance. Our tanks and vessels are built from AISI 304L and 316L stainless steel, ensuring corrosion resistance and compliance with strict industry hygiene standards.
Available designs and configurations:
- Installation types: Skirt, legs, lugs, ring supports or saddles
- Thermal jackets for heating/cooling (with insulation)
- Top or side-mounted agitators
- CIP/SIP systems for clean-in-place functionality
- Customized nozzles, manways, access ports and instrumentation
Advanced Manufacturing Technology
Our modern production line is equipped with cutting-edge technology to ensure precision and high-quality results at every step of the manufacturing process. It begins with uncoiling, straightening, and cutting the steel sheets to the required dimensions. Thermal jackets are then installed when needed for heating or cooling.
The implemented use of WIG (TIG) or Plasma automated welding ensures strength, quality and aesthetically clean welds. After welding, the internal and external surfaces are ground to achieve the desired finish and required roughness for the intended use.
Once assembled, the tank or vessel undergoes cleaning to meet hygiene standards, followed by testing to verify performance and quality, ensuring compliance with regulatory and client specifications.
Industries & Applications
Our tanks and vessels are trusted across a wide range of industries:
- Brewery – Fermentation, processing, storage, separation
- Wines & Spirits – Hydrolysis, fermentation, alcohol storage
- Soft Drinks – Processing, storage, separation
- Dairy – Pasteurization, separation, hygienic storage
- Food Processing – Mixing, heat exchange, hygienic storage
- Pharmaceuticals – Mixing, granulating, drying, sterile production
- Chemical Industry – Reactors, storage tanks, bio reactors, heat exchangers
- Custom Applications – Designed per specific customer requirements
Certified Quality & Standards
We adhere to internationally recognized standards to ensure the highest level of quality and safety in every project. Our welding practices conform to EN ISO 5817, which defines quality levels for imperfections in welded joints. All pressure vessels comply with the PED 2014/68/EU Pressure Equipment Directive, ensuring safety under pressure-related applications. Additionally, our welding processes meet the requirements of EN ISO 3834-2:2021, reflecting our commitment to comprehensive quality management in welding.
Our Strengths
We deliver high-quality stainless steel tanks and pressure vessels tailored to meet diverse industrial requirements. What makes us unique:
- Volume Flexibility: 0.5 to 100 m³
- Design Variety: Vertical and horizontal tanks
- Certified Quality: EN ISO 5817 & PED 2014/68/EU
- Construction Options: Skirt, legs, lugs, ring supports or saddles
- Advanced Features: Agitators, thermal jackets, hygienic finishes
- Turnkey Solutions: Fully customized to your process and standards
