The 15L Vacuum Double Planetary Mixer with Touch Screen is a state-of-the-art industrial mixing system designed for high-viscosity materials across multiple industries. This versatile machine combines planetary motion, high-speed dispersion, and vacuum operation to achieve exceptional mixing uniformity for applications ranging from lithium battery slurries to adhesives, sealants, cosmetics, and pharmaceuticals.
MAXWELL Automation has over 18 years of expertise in manufacturing industrial planetary mixers and has developed this model to address the challenges of mixing high-viscosity materials (10,000–1,000,000 cps). The 15L model is part of a comprehensive product line that includes capacities from 2L to 2000L, making it suitable for both laboratory R&D and small-batch production.

| Parameter | Specification |
|---|---|
| Model | SXJ-15 (15L Vacuum Double Planetary Mixer) |
| Working Volume | 15L |
| Design Volume | 24L |
| Revolution Speed | 0-43 rpm (Adjustable) |
| Mixing (Self-rotary) Speed | 0-99 rpm (Adjustable) |
| Scraper Speed | 0-43 rpm (Adjustable) |
| Dispersion Speed | 0-2980 rpm (Adjustable) |
| Vacuum Level | -0.09 MPa |
| Material (Contact Parts) | SUS304 / SUS316 Stainless Steel |
| Lifting Method | Electric Lifting |
| Dimensions (L×W×H) | 1500×800×1900 mm |

The mixer features a dual-shaft planetary stirring structure where the mixing blades rotate on their own axes while simultaneously revolving around the vessel. This creates a complex flow pattern that ensures thorough mixing with no dead zones. The combination of low-speed kneading and high-speed dispersion delivers both macro-scale mixing and micro-scale particle reduction.
An integrated high-speed disperser (up to 2980 rpm) applies powerful shear force to break down agglomerates, disperse additives, and achieve fine particle sizes. This is essential for applications like battery slurries and sealants where particle uniformity is critical.
The system operates under vacuum (-0.09 MPa), which:
Removes air bubbles from the mixture
Prevents oxidation of sensitive materials
Improves product density and consistency
Enables degassing of high-viscosity materials
The intuitive touch screen interface provides:
Easy operation and parameter adjustment
Recipe storage for different products
Real-time monitoring of speed, temperature, and vacuum
Multi-stage speed programming capabilities
All contact parts are constructed from premium SUS304 or SUS316 stainless steel, providing:
Excellent corrosion resistance
Easy cleaning and sanitation
Compliance with food and pharmaceutical standards
Long service life
The vessel cover and mixing head can be electrically lifted, allowing:
Easy loading and unloading of materials
Convenient cleaning and maintenance
Safe operation with minimal operator effort
Optional heating and cooling functions allow temperature control during mixing, which is essential for:
Temperature-sensitive formulations
Materials requiring specific processing temperatures
Optimizing viscosity and flow characteristics
The scraper blades (PTFE material) continuously sweep the vessel walls, ensuring:
No material buildup on walls
Consistent mixing of all material
Maximum material utilization
Easy cleaning

The 15L Vacuum Double Planetary Mixer integrates multiple mixing actions:
| Mechanism | Function | Benefit |
|---|---|---|
| Planetary Rotation | Blades revolve around the vessel | Macro-scale mixing, bulk circulation |
| Self-Rotation | Blades spin on their own axes | Shear force, particle dispersion |
| High-Speed Dispersion | Rotor-stator at 2980 rpm | Micro-scale mixing, particle size reduction |
| Vacuum Deaeration | Air removal under -0.09 MPa | Bubble-free, dense product |
| Wall Scraping | PTFE scraper sweeps walls | No dead zones, consistent mixing |
| Heating/Cooling | Temperature control | Viscosity optimization, process control |

The 15L mixer is widely used for preparing lithium battery slurries, including cathode and anode materials. The vacuum and mixing combination ensures excellent dispersion of active materials, conductive additives, and binders.
This machine is ideal for mixing:
Silicone sealant
Polysulfide sealant
Epoxy adhesive
Electronic potting compounds
Hot melt adhesives
Common applications include:
Creams, lotions, and gels
Toothpaste
Face masks and mascara
Foundation and nail polish
Lipstick
The sanitary stainless steel construction makes this suitable for:
Ointments and gels
Medicated patches
Eye and dental products
Polymer gels
Applications include:
Jams, seasonings
Chocolate syrup
Paste mixing
Sauces and dressings
The mixer handles:
Solder paste
Ceramic slurry
Electronic adhesives
Magnetic materials and pastes
| Parameter | SXJ-2 | SXJ-5 | SXJ-10 | SXJ-15 | SXJ-30 | SXJ-50 |
|---|---|---|---|---|---|---|
| Working Volume | 2L | 5L | 10L | 15L | 30L | 48L |
| Design Volume | 3L | 7.4L | 14L | 24L | 43L | 68L |
| Revolution Speed | 0-51 | 0-51 | 0-48 | 0-43 | 0-42 | 0-39 |
| Mixing Speed | 0-112 | 0-112 | 0-100 | 0-99 | 0-97 | 0-85 |
| Dispersion Speed | 2980 | 2980 | 2980 | 2980 | 2980 | 2100 |
| Rotary Power (kW) | 0.75 | 1.1 | 1.5 | 2.2 | 3 | 4 |
| Disperser Power (kW) | 0.75 | 1.1 | 1.5 | 2.2 | 3 | 4 |
| Dimension | 800×580×1200 | 1200×700×1800 | 1300×800×1800 | 1500×800×1900 | 1620×900×1910 | — |
| Lifting Type | Electric | Electric | Electric | Electric | Electric | Hydraulic |
MAXWELL offers customized mixing head combinations for different applications:
High-speed + High-speed: Maximum shear for particle size reduction
High-speed + Low-speed: Balanced dispersion and bulk mixing
Low-speed + Low-speed: Gentle mixing for shear-sensitive materials
High-speed components include:
High shear emulsification device
High-speed dispersion device
High-speed propulsion device
Butterfly stirring device
Low-speed components include:
Anchor stirring
Paddle stirring
Spiral stirring
Helical ribbon stirring
Rectangular stirring
The system maintains reliable vacuum sealing with:
SiC-S + Fluorine rubber dynamic seals
Silicone/Fluorine rubber/Nitrile rubber static seals
-0.09 MPa vacuum capability
Versatility: Handles a wide range of viscosities (10,000–1,000,000 cps) and material types.
Precision Control: Touch screen with multi-stage programmable speed settings.
Sanitary Design: Stainless steel construction suitable for food, cosmetic, and pharmaceutical applications.
No Dead Zones: Scraper system ensures all material is mixed.
Bubble-Free Results: Vacuum operation eliminates air bubbles.
Scalable: Part of a complete line from 2L to 2000L.
Proven Reliability: Backed by MAXWELL's 18+ years of mixing equipment expertise.
Heating System: Steam heating or electric heating for temperature control
Cooling System: Water cooling or mold temperature controller
Custom Controls: Additional control options for specific applications
Special Coatings: For specific material compatibility requirements
Data Logging: For quality control and batch documentation