In the fields of sealants, adhesives, new energy batteries, cosmetics, and high-viscosity chemical materials, large-scale production capacity combined with precise mixing control is essential for manufacturing efficiency and product quality. Wuxi Maxwell Automation Technology Co., Ltd., with over 18 years of industry experience, offers the 300L Vacuum Double Planetary Mixer with Lifting Cap – a heavy-duty industrial-scale gantry-style device integrating high-torque mixing, high-speed dispersion, vacuum degassing, and robust hydraulic lifting, specifically designed for mass production of sealants, adhesives, battery slurries, cosmetics, and other high-viscosity materials.
MAXWELL's mixing equipment can be scaled up to 10 liters, 300 liters, or even 500 liters to meet future production expansion needs. The 300L model represents the mid-to-large capacity range, offering an ideal balance between production volume and operational flexibility for growing manufacturing operations.

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 between the blade and the mix tank's inner walls provide a strong shearing force, resulting in superior mixing, kneading, and dispersion.
The lifting cap system is a key feature of this model. The vessel cover can be hydraulically lifted and lowered, and the vessel can be moved freely for ease of operation. Furthermore, the stirrers and scraper can rise with the beam and fully detach from the vessel body, facilitating easy feeding, sampling, and cleaning. This gantry-style design ensures stable, smooth, and reliable lifting of the heavy mixing head assembly – a critical advantage for large-scale production environments where efficiency and ease of maintenance are paramount.
Simultaneously, 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.

Below are the key parameters for the 300L model, based on official MAXWELL data from the product specification table:

The 300L vacuum double planetary mixer with lifting cap is designed for large-scale production across numerous industries:
Energy Sector: Mass production 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.

Gantry Lifting Cap Design: The robust hydraulic lifting mechanism allows the vessel cover to be raised and lowered smoothly. The stirrers and scraper can fully detach from the vessel body, providing easy access for cleaning and maintenance.
Heavy-Duty Industrial Design: Robust construction with heavy-duty motors (22KW mixing + 30KW dispersion) specifically engineered to handle high-viscosity sealants, adhesives, and battery slurries.
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 or water circulation, with temperature displayed on the control panel.
Optional Extruder System: An integrated screw extruder can be added for efficient, clean discharge of high-viscosity materials directly from the mixing vessel, minimizing material waste and manual handling.
Scalability: The same equipment platform can be scaled up from 10L to 300L to 500L for future production expansion needs.
