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Stainless Steel Bioreactors and Fermentation Vessels

Our stainless steel bioreactors, fermentation vessels and batch reactors enforce complete product purity for your critical BioPharm applications.

HOLLOWAY AMERICA crafts stainless steel bioreactors like the one shown here

Stainless Steel Bioreactors, Fermentation Vessels, and Batch Reactors

At HOLLOWAY AMERICA, we engineer stainless steel bioreactors and fermentation vessels to exacting specifications because we understand the critical nature of Pharmaceutical and Biotech industries.

In fact, we excel at meeting those standards.

We’re passionate about crafting completely customized processes that meet your most unique or challenging specifications. We also use high-quality finishes that exceed industry norms. Each vessel we craft is inspected and tested to ensure all requirements are met or surpassed. When you size your vessels and design your fermentation or bioprocessing suites, you can rely on our reputation and dedication to ensure your processes are carried out with utter precision.

Sizes, Materials of Construction, and More

When ordering our fermentation vessels, stainless steel bioreactors, or batch reactors, here are just a few things you can expect:

  • Vessel sizes from one liter to 30,000 liters 
  • ASME-certified welders and BPE certified materials 
  • International standards available upon request include PED/CE/CRN/MOM/NR-13/D1 (China)
  • In-house finish requirements from 30Ra to 5Ra, with and without H-Electropolish™
  • Custom-drilled sprayballs with Riboflavin proof testing and certifications
  • Material options from 316L stainless steel, Duplex, AL-6XN®*, HASTELLOY®*, and many other high-alloys
  • FAT (Factory Acceptance Testing) room, and complete documentation packages in hard copy and digital copies as standard


*HASTELLOY® is a trademark of Haynes International, Inc.; AL-6XN® is a trademark of Allegheny Ludlum.

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This stainless steel fermenter performs to HOLLOWAY standards.

Stainless Steel Fermenter & Bioreactor Construction Materials

Every stainless steel fermenter from HOLLOWAY features a fine interior finish for greater purity. Our stainless steel bioreactors and fermenters are also made with the finest quality construction materials:

  • T–316L (standard)
  • T–304L
  • T–317L
  • C–22
  • C-276
  • AL-6XN™
  • Other materials available by request

Size and Materials of Construction

We craft ASME vessels from 6" diameter up to 144" diameter and test each and every vessel to meet stainless steel ASME code requirements. We are capable of construction using almost any 300 Series Stainless Steel material as well as most High Nickel Alloys.

Whether your process demands an ASME mixer tank, bioreactor, or any of our other ASME stainless steel pressure vessels, our available surface finish regimen covers a broad range. From Mill plate to Standard Grit finish offerings, all the way to low mechanical 5Ra to 10Ra range, all our surface finishes can be complemented by our in-house H-Electropolish™ service.

Our ASME Stamps

HOLLOWAY AMERICA holds both ASME “U” and National Board “R” stamps. Below are a few of the stainless steel ASME codes and standards we meet:

  • ASME Section VIII, Division I “U”
  • ASME BPE
  • CE / PED (Conformité Européenne, meaning "European Conformity”) / Pressure Equipment Directive
  • CRN (Canadian Registration Number)
  • NR-13
  • MOM (Ministry of Manpower)  

All welders at HOLLOWAY AMERICA are certified to ASME Section IX.  

ASME Pressure Vessel Materials

To ensure the ASME pressure vessels we engineer perform to perfection and are built to last, we use only excellent stainless materials:

  • T–316L (standard)
  • T–304L
  • T–317L
  • C–22
  • C-276/HASTELLOY®*
  • AL-6XN®*
  • Other materials available by request


*HASTELLOY® is a trademark of Hanes International, Inc. and AL-6XN® is a trademark of Allegheny Ludlum.

At HOLLOWAY, we're committed to quality. From every angle.

Quality Materials & Surface Finishes

With industry-surpassing materials of construction and exacting finishes, our tanks and vessels are built to last.

Sprayball Coverage Testing

Our riboflavin coverage testing ensures your sanitation processes are as flawless as your tanks.

No-Charge Estimates

Talk to a HOLLOWAY representative to get a complimentary product or service consultation.

Factory-Quality Service On Your Site

Our Field Services team will happily deliver and install your equipment on site.

We're ready to craft your solutions.

Tell us more about the products and services you're interested in—as well as which industry you call home—on our quick-and-easy "Request for Information" form. Or, give us a call and talk to one of our representatives.