Jacketed Stainless Steel Fermentation Tank

What is the Jacketed Stainless Steel Fermentation Tank?

A jacketed stainless steel fermentation tank uses a surrounding jacket for heating and cooling while containing the culture at production scale. It is the general-purpose vessel for industrial fermentation and pharmaceutical production.

Overview

A jacketed stainless steel fermentation tank has a double wall through which cooling water, chilled glycol or steam circulates, giving a large heat-transfer area around the vessel. The inner shell is normally 316L stainless steel, finished and welded to a hygienic standard, and may carry baffles and one or more impellers on a top-entry agitator. A sparger introduces gas, and the headplate or side wall carries probes, feeds, sampling, antifoam and cleaning connections. Jackets are usually divided into zones so that temperature can be controlled more evenly, and insulation limits heat loss or gain. Because the jacket surrounds the bulk liquid, these tanks respond well to exothermic fermentations, and they can be cleaned in place and sterilized with steam. Design pressure, surface finish and drainability decide how well the vessel meets current hygiene and cleaning requirements.

How does it work?

A fermentation tank provides a contained, sterilizable volume in which the culture is mixed, aerated and temperature controlled. Geometry matters because the ratio of height to diameter, the baffles and the impeller type set the mixing pattern and the oxygen transfer achieved at a given power input. A jacket or internal coil supplies or removes heat, and the wall thickness, welding quality and surface finish support pressure containment, cleaning and sterilization. Gas is introduced through a sparger and leaves through a condenser and exhaust filter, while ports on the top or side carry probes, feeds, sampling and cleaning devices. Material grade, surface roughness, drainability and the absence of dead legs determine whether the vessel can be cleaned and sterilized reliably, and whether it meets the hygiene and pressure requirements of the process.

What are the key features?

• Double-wall jacket for heating and cooling
• 316L stainless steel inner shell
• Zoned jacket for even temperature control
• Top-entry agitator with baffles
• Clean-in-place and sterilize-in-place connections

What are the technical specifications?

A typical jacketed stainless steel fermentation tank configuration offers volume of 500–50,000 L, material of 316L stainless steel inner shell, design pressure of 0.2–0.4 MPa (vessel), 0.3–0.6 MPa (jacket), design temperature of 0–150 °C, surface finish of Ra below 0.8 µm (product contact) and jacket type of Zoned, dimpled or half-pipe. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Jacketed Stainless Steel Fermentation Tank is used in pharmaceutical fermentation, industrial enzyme production, beverage fermentation and wastewater treatment. Across the wider Fermentation Tanks class, laboratories also deploy it for production-scale fermentation, brewing and beverage fermentation and industrial enzyme manufacture.

Which standards and certifications apply?

Relevant standards and methods include GB/T 150, ASME BPVC Section VIII, EU GMP Annex 1, 21 CFR Part 211, USP <661>, ISO 9001 and IEC 61010-1. Certification candidates for this model are CE, ISO 9001 manufacturing and Pressure vessel compliance; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Verify the pressure rating and safety devices before operation, and never defeat relief valves or interlocks. Confirm welding, surface finish and drainability during installation because they determine whether cleaning is effective. Establish cleaning and sterilization cycles and confirm them with rinse water conductivity, swabs or biological indicators as appropriate. Inspect gaskets, seals and sparger holes for wear, since a blocked sparger causes poor oxygen transfer and a failed seal can compromise sterility. Monitor jacket and coil performance for fouling, and log pressure and temperature tests. For used or refurbished tanks, request inspection records and confirm that repairs meet the design standard before returning the vessel to service.

How do I select the right Jacketed Stainless Steel Fermentation Tank?

Choose a jacketed stainless tank for general production fermentation where even temperature control and hygienic design matter. In an RFQ specify volume, material grade, design pressure and temperature, surface finish, jacket zoning, agitation and port requirements, and the cleaning and sterilization devices.

How does it compare with other Fermentation Tanks variants?

Start from the volume, the organism and the process. Choose the geometry from the mixing and oxygen transfer requirements: tall and narrow columns favor gas-driven circulation, while wider vessels with baffles and multiple impellers suit high power input. Decide on jacketed or coil design from the heat load, and confirm the design pressure and temperature with the sterilization method. Specify the material grade, typically 316L, and the surface finish and welding standard so that clean-in-place and sterilize-in-place are effective. List the ports and their functions, including probes, feeds, sampling, foam and cleaning devices, and check the positions for reliable measurement. For regulated production, request design documents, material certificates, pressure test records and the qualification package.