304/316L Stainless Steel Jacketed Pressure Reactor | Chemical & Biotech Reaction Vessel

We build jacketed pressure reactors for production environments where material integrity and process control are non-negotiable. This vessel is available in 304 or 316L stainless steel, depending on your process chemistry. The 316L grade is the standard choice for pharmaceutical intermediates, biotech media, and chloride-containing reactions, while 304 handles a wide range of general chemical duties at a lower material cost.

Our manufacturing process starts with certified mill material. Heads and shell sections are formed cold, then welded by certified welders using full-penetration techniques. All internal welds are ground flush and electropolished where required. Interior surface finishes range from 0.4 µm Ra to 0.8 µm Ra, which makes cleaning validation straightforward in aseptic processes. We pressure-test every vessel before shipment, and we can provide material test certificates and weld maps on request.

The jacket is designed for your thermal fluid—steam, hot oil, or chilled water. We size the jacket volume and nozzle positions to match your heating and cooling rates, not just to fit a standard drawing. For processes that need rapid cooling, we can add a half-pipe coil or internal coil in addition to the conventional jacket.

Agitation is where most reactors get customized. We build anchor, turbine, paddle, and high-shear impellers, with or without baffles. Shaft seals are selected based on your pressure and contamination requirements: single mechanical seal, double mechanical seal with barrier fluid, or magnetic drive for zero-emission operation. Explosion-proof motors and variable-frequency drives are available for solvent-based processes.

These vessels are used in chemical synthesis, resin production, pharmaceutical API manufacturing, cosmetic emulsions, and food processing. They are equally suited for pilot plants and small-batch production lines.

Technical Specifications

FAQ

Q: How do I know if I need 304 or 316L?
If your process involves chlorides, acids, or pharmaceutical/biotech applications, choose 316L. For general organic synthesis without halides, 304 is more economical.

Q: Can you build a reactor that operates under vacuum?
Yes. We design for full vacuum with stiffening rings on both the shell and jacket side. Specify your minimum operating pressure.

Q: What is the lead time?
Standard vessels typically ship in 4–6 weeks. Custom designs with special alloys or complex agitation take 8–10 weeks.

Q: Do you provide documentation for FDA or CE compliance?
We provide material certificates, weld maps, pressure test reports, and surface finish certificates. If you require a specific code stamp (ASME U, CE PED), let us know at the inquiry stage.

Before You Request a Quote

To get accurate pricing and a vessel that works on your floor, prepare these details: the chemical composition and concentration of your materials, batch volume and working volume, operating and design temperatures, operating pressure (or vacuum), viscosity and solids content, required heating/cooling rates, and your mixing expectations. Also note any cleaning requirements — CIP/SIP — and whether you need an explosion-proof motor.

Send us those process parameters. Our engineers will recommend the right material grade, jacket type, agitation system, and seal arrangement for your specific application. We will send you a detailed quotation with a dimensional drawing for your review before production begins.