Roben, Mfg, Inc. is a leading manufacturer of high-quality stainless steel hygienic tanks, providing innovative sanitary solutions for various industries.
With a wide range of stainless steel hygienic tank types and customizable options, our sanitary process specialists will ensure optimal cleanliness, product safety, and regulatory compliance for your specific application.
A stainless steel hygienic tank is a specialized vessel designed and fabricated to meet stringent sanitary standards for industries requiring the highest levels of cleanliness and product purity. These tanks feature polished internal surfaces, crevice-free design, specialized connections, and materials that are easy to clean, sterilize, and validate. Stainless steel hygienic tanks are essential for pharmaceutical, food and beverage, cosmetic, and biotechnology applications where product integrity and contamination prevention are critical.
1. What surface finish options are available for stainless steel hygienic tanks, and how do I select the appropriate one?
Roben, Mfg, Inc. offers a range of surface finishes for hygienic tanks, including mechanical polishing (typically 180 grit to mirror finish), electropolishing, and passivation. Surface roughness can be specified in Ra values ranging from 0.8μm (32μin) to 0.2μm (8μin) or better for critical applications. The appropriate finish depends on your specific application, product characteristics, cleaning protocols, and regulatory requirements. Pharmaceutical applications often require electropolished surfaces with Ra values of 0.4μm (16μin) or better, while food processing may be adequately served with mechanically polished surfaces at 0.6μm (25μin). Our engineering team will help you select the optimal surface finish based on your specific process needs and validation requirements.
2. How are your stainless steel hygienic tanks designed to facilitate effective cleaning and sterilization?
Our hygienic tanks incorporate numerous design features specifically for cleanability, including fully radiused internal corners (minimum 3/8″ radius), sloped bottoms (typically 1-3° depending on size), self-draining orientation, minimized horizontal surfaces, eliminated crevices, and sanitary connections throughout. For CIP systems, we design optimized spray ball placement, proper fluid velocities, and complete coverage verification. SIP systems include proper condensate removal, uniform heating surfaces, and temperature distribution validation. Additionally, we can provide riboflavin testing services to validate cleaning effectiveness and document cleanability for regulatory submissions.
3. What documentation packages are available for your stainless steel hygienic tanks?
Roben, Mfg, Inc. provides comprehensive documentation packages tailored to your industry requirements. Standard documentation includes material test reports (MTRs), surface finish certification, dimensional reports, weld documentation, pressure test certification, passivation certification, and operations/maintenance manuals. For pharmaceutical and biotechnology applications, we offer enhanced documentation including mill certificates, weld maps, borescope inspection reports, riboflavin test results, and IQ/OQ/PQ validation support documentation. Custom documentation packages can be developed to support your specific quality and regulatory requirements.
4. Can Roben, Mfg, Inc. provide custom-designed stainless steel hygienic tanks for unique process requirements?
Yes, custom design is one of our specialties. We regularly create unique hygienic tank solutions for specific process challenges, space constraints, or novel applications. Our engineering team works closely with your process engineers to develop tanks that precisely meet your requirements while maintaining sanitary design principles. We can accommodate special geometries, unique access requirements, specialized agitation systems, complex jacket designs, and integration with existing equipment. From concept through validation, we ensure that custom designs maintain full compliance with applicable regulatory standards while solving your specific process challenges.
5. What testing and qualification services are provided for stainless steel hygienic tanks?
We offer comprehensive testing services including hydrostatic pressure testing, surface roughness verification, material verification (PMI), dye penetrant examination, radiographic examination of welds, and riboflavin testing for spray coverage. For critical applications, we provide passivation verification, endotoxin testing, extractables/leachables testing, and sterilization cycle validation. Our qualification services support IQ/OQ/PQ validation with testing protocols, execution, and documentation to meet regulatory requirements. We can also perform Factory Acceptance Testing (FAT) with client witnessing and provide Site Acceptance Testing (SAT) support during installation and commissioning.
