How to manufacturing double jacket mixer in Europe

How to Manufacture Double Jacket Mixer

The double jacket mixer is a staple in the industrial mixing field, especially for applications requiring precise temperature control and efficient mixing of viscous materials. As a leading China-based industrial mixer and blender factory, YUANYANG offers not just finished double jacket mixer products, but also deep expertise in the design, manufacturing, and installation of such specialized equipment. we’ll walk through the complete process of how to manufacture a double jacket mixer, spotlighting key design considerations, construction steps, and quality control measures.

Understanding the Double Jacket Mixer

Before delving into the manufacturing steps, it's important to understand what makes the double jacket mixer unique. This professional mixing equipment features an internal mixing chamber surrounded by a secondary outer jacket. The double jacket enables efficient thermal transfer—heating or cooling the contents precisely—while maintaining the integrity and homogeneity of the mixture. Frequently used in cosmetics, pharmaceuticals, food, and chemical industries, this type of mixer underscores YUANYANG’s commitment to robust, safe, and high-efficiency mixing solutions.

Core Components of a Double Jacket Mixer

Every double jacket mixer manufactured by YUANYANG or other leading factories comprises several essential components:

- Inner Tank: The main vessel where mixing occurs, constructed from high-grade stainless steel for hygiene and durability.

- Outer Jacket: A shell that envelopes the inner tank, providing space for thermal fluids to circulate and change the temperature inside the vessel.

- Mixing Mechanism: Usually high shear or emulsifying mixers installed for thorough blending of ingredients.

- Insulation Layer: Minimizes energy loss, maintaining temperature efficiency.

- Agitator and Drive System: Ensures constant, reliable mixing during operation.

- Control Panel: Advanced automation for temperature and speed settings.

- Safety Features: Pressure relief valves, sight glasses, and sanitary fittings to ensure operator safety and product quality.

Step 1: Design and Engineering

Manufacturing a double jacket mixer begins with careful design and engineering—an area where YUANYANG’s technical team excels. The process starts with gathering client requirements regarding capacity, material, mixing type, and operating conditions. Using CAD software, engineers design the tank geometry, agitation components, and jacket system to match the end-use.

Key design considerations include:

- Capacity (from small lab sizes to large-scale production)

- Level of agitation (high shear, low speed, etc.)

- Material compatibility (304/316L stainless steel commonly used)

- Heating/cooling requirements (steam, water, glycol as thermal media)

- Compliance with CE and other regulatory standards

Step 2: Material Selection and Preparation

High-quality stainless steel, such as SUS304 or SUS316L, is selected for both the inner and outer vessels, given their corrosion resistance and compliance with industry hygiene standards. All materials undergo rigorous inspection and preparation, including:

- Surface treatment (pickling and passivation)

- Thickness and grade verification to ensure tensile strength

- Traceability checks for CE certification requirements

Step 3: Cutting and Forming the Steel Plates

Based on detailed engineering drawings, stainless steel plates are precision-cut using CNC laser or plasma cutting equipment. The plates are then pre-formed, typically through rolling or pressing, to achieve the desired curvature for inner and outer shells.

In this stage, CNC accuracy ensures the perfect alignment of the inner tank, jacket, ports, and all connection flanges—critical for leak-proof and high-performance double jacket mixer.

Step 4: Welding and Assembly

The assembly of the double jacket mixer requires expert welding skills—an area where YUANYANG’s workforce is highly trained. Welding processes, such as TIG (Tungsten Inert Gas) welding, are widely used to join the vessels and the jacket sections, ensuring contamination-free operation and a smooth interior surface.

Key welding tasks include:

- Joining the inner vessel’s seams and bottoms

- Attaching the outer jacket, ensuring a uniform cavity for thermal fluid circulation

- Installing baffles for improved mixing flow

- Integrating nozzles, manways, and inlets/outlets

After welding, all seams are polished to a sanitary finish, vital for industries like cosmetics and pharmaceuticals.

Step 5: Integration of Mixing Mechanism

YUANYANG’s double jacket mixers commonly feature high shear homogenizer or vacuum emulsifying mixers at their core. The mixing mechanism is installed through reinforced openings in the tank, with the agitator shaft and motor/fan assemblies precisely aligned.

During integration:

- Dynamic shaft seals and bearings are installed for leak prevention

- Mixing blades or stators/rotors are positioned for optimal emulsification and blending

- Vacuum systems or additional agitation features are added for specific processing needs

Step 6: Installation of Control Systems

Modern double jacket mixers from YUANYANG incorporate intelligent control systems. These systems provide real-time monitoring of temperature, agitation speed, mixing duration, and vacuum pressure if applicable.

Control system installation includes:

- Connecting sensors for temperature and pressure

- Wiring control panels for easy start/stop, programmable recipes, and emergency stops

- Testing remote monitoring features or PLC integration for smart production lines

Step 7: Quality Inspection and Pressure Testing

To comply with international safety and sanitation standards, every double jacket mixer undergoes rigorous quality checks:

- Hydrostatic pressure testing of the vessel and outer jacket to guarantee leak-free operation

- Visual and dye-penetrant inspections of all weld joints

- Roughness measurements for interior surfaces (often Ra < 0.6 μm for sanitary applications)

- Operational checks on all agitators, seals, and safety valves

CE certificate documentation is prepared at this stage, as required for sales in European and other regulated markets.

Step 8: Surface Polishing, Cleaning, and Final Assembly

All surfaces are thoroughly polished to the required sanitary finish. The outer shell receives additional finish—matte, mirror, or customized as per client specifications. The tank is cleaned with industrial cleaners to remove residues, ensuring readiness for food, pharmaceutical, or cosmetic-grade production.

Mounting of final accessories, such as viewing ports, manways, pressure sensors, or filling/emptying valves takes place in this step.

Step 9: Functional Testing

Before leaving the YUANYANG factory, the double jacket mixer is fully assembled and subjected to a dry-run and wet-run test. This includes:

- Simulated mixing runs to test agitation efficiency

- Heating/cooling the vessel to check thermal uniformity and energy efficiency

- Running control system diagnostics for alarms, interlocks, and safety responses

Only after passing all Q/C steps does the equipment move toward packaging and delivery.

Step 10: Packaging, Delivery, and Turnkey Support

Packaging is tailored to protect the double jacket mixer during transport—wooden crates, vacuum packing for sensitive parts, and desiccant for moisture-sensitive areas. Clear instruction manuals and technical support documents accompany each shipment.

As part of YUANYANG’s commitment, we offer free technical training and complete turnkey installation support. Our on-site staff ensure that the double jacket mixer is installed, commissioned, and integrated seamlessly with your existing production line equipment, such as storage tanks, filling machines, and water treatment systems.

Why Choose YUANYANG for Your Double Jacket Mixer Needs?

With over 15 years of experience, YUANYANG stands out as a reliable, innovative, and technically advanced manufacturer of double jacket mixers and related industrial solutions. Our products carry multiple CE certifications, ensuring compliance with the strictest international health and safety standards. Beyond manufacturing, our one-stop support—covering technical training, installation, and after-sales service—guarantees long-term equipment performance and minimized downtime for your production line.

Frequently Asked Questions

What is a double jacket mixer?

A double jacket mixer is industrial mixing equipment designed with two layers: an inner tank for mixing and an outer jacket for circulating heating/cooling fluids. This design ensures precise temperature control during the mixing of sensitive or viscous products.

Why is stainless steel preferred for double jacket mixers?

Stainless steel, particularly grades 304 and 316L, offers high corrosion resistance, easy cleaning, and compliance with hygiene standards, making it ideal for food, cosmetic, and pharmaceutical applications.

How does a double jacket mixer control temperature?

Thermal media (such as steam, water, or oil) circulated within the outer jacket enables rapid heating or cooling of the mix, controlled automatically via integrated sensors and PLC systems.

Is the double jacket mixer suitable for high-viscosity products?

Yes, especially when equipped with high shear or vacuum homogenizer systems. The robust agitators and thermal control ensure efficient mixing of viscous materials like creams, gels, or pastes.

Does YUANYANG provide turnkey services for industrial mixers?

Absolutely. YUANYANG supports customers with free technical training, on-site installation, commissioning, and after-sales support for complete turnkey production lines.

What certifications do YUANYANG double jacket mixers have?

Our mixers bear CE certificates, certifying compliance with European safety and health regulations, an essential mark for exporting and operating within the EU.

Can the mixer be customized for my process?

Yes, YUANYANG specializes in tailored solutions. We can adjust tank size, agitation type, control systems, and other features according to your specific process requirements.

How do I get technical help or training?

YUANYANG provides comprehensive user manuals, free technical training at our factory or your site, and 24/7 customer support for troubleshooting and optimal equipment use.

Contact YUANYANG today for more details on our double jacket mixer manufacturing expertise, and let us help you upgrade your production capabilities!