5L Laboratory Vacuum Planetary Mixer with Extruder1
In the fields of new energy batteries, sealants, adhesives, cosmetics, and high-viscosity chemical materials, laboratory-scale R&D and small-batch production require equipment that combines precision, efficiency, and ease of operation. Wuxi Maxwell Automation Technology Co., Ltd., with over 18 years of industry experience, offers the 5L Laboratory Vacuum Planetary Mixer with Extruder (Model: SXJ-5-S+extruder) – a compact benchtop device integrating high-torque mixing, high-speed dispersion, vacuum degassing, and an integrated extrusion system, specifically designed for laboratory R&D, process development, and small-batch production of sealants, adhesives, battery slurries, cosmetics, and other high-viscosity materials with viscosity ranging from 5,000 to 1,000,000 cP.
Working Principle: Planetary Motion, Vacuum Environment, and Integrated Extrusion
The "double planetary" mixer derives its name from its unique motion pattern. During operation, the low-speed mixing blades and high-speed dispersion disc rotate around the mixing vessel's central axis (revolution) while simultaneously rotating on their own axes (rotation). This compound motion generates strong shearing and kneading forces, causing materials to circulate comprehensively and achieve uniform mixing at both macro and micro levels. The precision-machined clearances between the blades and the mix tank's inner walls provide a strong shearing force, resulting in superior mixing, kneading, and dispersion.
The high-speed disperser (up to 2980 rpm) creates intense shear forces that break down agglomerates and ensure thorough dispersion of fillers, pigments, and additives – critical for battery slurries, sealants, and adhesive formulations.
The integrated vacuum system (achieving a vacuum level down to -0.09 MPa) effectively removes air bubbles entrapped during mixing. This is particularly important for sealants, adhesives, battery slurries, and electronic potting compounds where bubbles can compromise product integrity, electrical insulation, or bond strength. The vessel adopts a special sealing structure, capable of pressurized and vacuumized mixing, with excellent exhaust and bubble removal effects.
The integrated extruder system is the key differentiator of this model. After the mixing process is completed, the built-in screw extruder enables efficient, clean, and controlled discharge of highly viscous materials directly from the mixing vessel. This design minimizes material waste, reduces manual handling, and significantly simplifies the production workflow – making it particularly valuable for R&D environments where material quantities are limited and precision is critical.
The benchtop compact design (1200×700×1800mm) makes the SXJ-5-S+extruder particularly suitable for laboratory environments with limited space, while the movable mixing vessel and integrated extruder provide flexibility for various R&D workflows.
Core Technical Specifications
Below are the key parameters for the SXJ-5-S+extruder model, based on official MAXWELL data:
Diverse Application Fields
The 5L vacuum planetary mixer with extruder is designed for R&D and small-batch production across numerous industries:
Energy Sector: Preparation of lithium battery slurries, nickel-chromium, nickel-metal hydride, and fuel cell pastes.
Electronics & Appliances: Solder paste, ceramic slurry, magnetic materials, electronic adhesives, PVC plastics, electronic potting glue, hot melt adhesives.
Chemical Industry: Various sealants, adhesives (silicone sealant, polysulfide sealant, structural insulating glass sealant, waterproof sealant, anaerobic adhesive), synthetic resins, rubber, printing inks, putty, abrasives, wax products, ceramic pigments.
Pharmaceuticals: Various ointments, polymer gels, and medical preparations.
Cosmetics & Food: Creams, lipsticks, lotions, gels, facial masks, mascara, foundations, nail polish, toothpaste, soaps, jams, seasonings, and chocolate syrup.
Structural and Design Advantages
Integrated Extruder Discharge System: The built-in screw extruder allows for clean, efficient discharge of high-viscosity materials directly from the mixing vessel. This feature reduces material loss, eliminates the need for manual scooping, and ensures consistent output – a critical advantage for valuable or sensitive materials.
Compact Benchtop Design: Space-saving footprint ideal for laboratory environments with limited workspace.
No Dead Corners: A wall scraper attached to the planetary frame continuously scrapes material from the vessel wall, ensuring no unmixed zones and consistent batch quality.
Versatile Agitator Options: Mixing heads can be tailored with options like twist-type, blade-type, frame-type impellers, as well as high-speed dispersion discs and homogenizers, to suit different formulations.
Vacuum Degassing: The integrated vacuum system removes air bubbles and volatiles, ensuring product density, stability, and appearance.
Temperature Control: The jacketed vessel allows for precise heating or cooling via oil, water, or steam circulation, with temperature displayed on the control panel.
Convenient Operation & Cleaning: The cover is electrically lifted, and the mixing vessel is movable, facilitating easy feeding, sampling, and cleaning.
Scalability: MAXWELL offers a complete range from 2L to 2000L, allowing for seamless scale-up.
