300L Scraping Wall Vacuum Reactor with Electric Heating & Cooling Jacket

This 300-liter reactor is built for processes where conventional agitation falls short. The scraping wall stirrer continuously wipes the vessel interior, which makes it a practical choice for high-viscosity materials, crystallization processes, and reactions that tend to form buildup on the tank wall. It is a piece of equipment we have refined through years of building reactors for adhesive, resin, and pharmaceutical intermediate production.

The vessel is constructed from stainless steel—typically 304 or 316L depending on your feed chemistry. We weld with full penetration and verify the integrity of every seam. Interior surfaces are mechanically polished to a Ra of 0.4–0.8 µm, which eases cleaning and reduces the chance of product contamination between batches. The jacket is designed to handle both electric heating and cooling media, giving you a single vessel that can ramp up temperature for the reaction phase and then cool down quickly for product discharge.

The vacuum capability allows you to strip solvents or operate under reduced pressure without leakage. A mechanical seal on the agitator shaft keeps the system airtight, and the scraping assembly is paired with a separate anchor or turbine impeller when the process demands both wall scraping and high-shear mixing. These are details we normally finalize after reviewing your specific process data.

Technical Specifications

• Nominal Volume: 300L
• Working Volume: 200–240L (typical)
• Material: SS304 / SS316L
• Heating: Electric jacket heating
• Cooling: Jacket cooling (thermal fluid or chilled water)
• Design Pressure: Full vacuum to 0.6 MPa (customizable)
• Stirring: Scraping wall agitator with variable speed drive
• Sealing: Mechanical seal
• Surface Finish: Mirror polish internal, brushed external

Frequently Asked Questions

Can this reactor handle solvent-based reactions? Yes, provided the seal and gasket materials are compatible with your solvent. We need to know the solvent type and concentration to select the appropriate seal elastomer.

What is the maximum operating temperature? The standard configuration handles up to 200°C with the electric heating system. Higher temperature requirements need a different heating medium and gasket specification.

How do we clean the vessel between batches? The polished surface and removable scraper blades make manual cleaning straightforward. If you need CIP (clean-in-place) capability, we can add spray balls and a dedicated cleaning port.

What viscosity range is the scraper suitable for? We have run this design with products up to 500,000 cP. The motor power and gearbox ratio are selected based on your actual viscosity and mixing requirements.

Buying Guidance

Before requesting a quote, gather the following: the chemical composition and concentration of your materials, batch volume, required operating and design temperatures, whether the process runs under vacuum or pressure, the viscosity and solids content, and the type of mixing or heat transfer you need. The more specific you are about these parameters, the closer our initial proposal will be to your actual production needs. Send us these details and we will recommend the right vessel configuration and provide a firm quotation.