SRI is a renowned partner for engineering, manufacturing and inspection of equipment in this high-demand industry. Equipment examples are fermenters and reaction vessels for medical companies, laboratories and universities. We effortlessly meet the highest quality requirements, including cleanability.

Customization for any situation

We supply both individual devices and units, as well as complete systems with agitators, appendages and skid mount. In addition, our craftsmanship meets the strict requirements for cleanability and finishing. As such, internal finishing to Ra<= 0.1 mu (with subsequent electropolishing) is an option. Regarding the design we commit to the international design codes (ASME, EN 13445). Due to our clever designs, dead spots are avoided and full washability of the internal surfaces is guaranteed.

Unique self-built devices

Our devices are manufactured from high-quality stainless steels, matching any process (316L, 904L and Al6Xn). These base materials meet strict requirements with regard to composition and homogeneity. We extensively test our devices on aspects such as practicality and finish. The standard agreed upon is measured by Pethometer and documented for the end user (according to FDA and ASME BPE requirements). For optimum internal finishing we have developed automated cutting systems, which can be followed by a number of additional (manual) grinding procedures. For example, connections are machined to an H7 fit. We deliver our end products with a complete manufacturing report (MR) as standard.

Concept and engineering

Right from the concept phase of any project, SRI is heavily involved in the design of devices in order to create the best solution in cooperation with our clients. Our main challenge is to use all possibilities within the assigned design codes and customer specifications. We also take care of the entire approval process. As a result of our experience we often manage to surpass our clients' expectations with well-thought-out...

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Development and realization

Our own expert team supervises the entire development and realization process, for which we work out a detailed production planning. All of this takes place under supervision of our QC department. Manufacturing starts as soon as the final drawings package is ready and all main materials have been...

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Construction and installation

At SRI we aim for integral, trouble-free project realization for our customers. We offer reliable solutions that require minimal maintenance. In order to fully control quality and planning we carry out the entire process of construction and installation on location under our own management. Our facilities cover an approximate 25,000 m2. With our flexible work methods SRI is of great added value to our...

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Service and maintenance

In addition to quality, continuity is of great importance in the industries our clients operate in. Our service department is always standby to solve malfunctions or repair damage. We manage to continuously minimize failure cost through scheduled maintenance, smart technological inspections and preventive replacement of wear...

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SRI's high-quality equipment is used worldwide for biotechnological processes such as medicine and vaccine production. Equipment requirements in the biotechnology industry are extremely strict, even exceeding those in the pharmaceutical chemistry industry. For reasons of cleanability and optimal drainability, our customers generally demand electropolished interior finishes. Most equipment we manufacture features a cooling and/or...

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An excellent worldwide reputation due to highly reliable process industry solutions


Through years of experience, backed up by continuous innovation in engineering, manufacturing techniques, quality control and organization, SRI is certified for PED/CE Module H/H1, ASME U&R Stamp, SELO en ISO 9001. We prove to be a reliable partner for many, often recurring customers worldwide.


From the small town of Veenwouden, The Netherlands, SRI has evolved into a global manufacturer of process industry equipment. We are proud of our roots as well as our worldwide status. Please feel free to ask for information about our engineering and production methods. Also, please contact us if you’d like to cooperate with us.