Double Planetary Mixer: Specifications & Price Guide 2026 | POLYC
Double Planetary Mixer: Specifications & Price Guide 2026
Industrial vacuum planetary mixers (5L to 2,000L) for lithium battery slurries, thermal greases, sealants, and high-viscosity pastes — planetary kinematics, extreme torque gearboxes, and direct factory pricing.
Processing ultra-high-viscosity, non-flowing pastes presents physical mixing obstacles that standard single-shaft or dual-shaft dissolvers cannot overcome: "How do I select an industrial mixer capable of homogenizing shear-sensitive materials spanning 100,000 cps to over 2,000,000 cps — such as high-nickel lithium battery cathode slurries, micro-electronic thermal conductive greases, and silicone elastomeric sealants — without mechanical dead zones, thermal hot spots, or micro-bubble entrapment?" Because pasty formulations have zero natural convective flow, every cubic millimeter of product must be forced mechanically through intense shear clearances between intermeshing blades and the vessel walls.
As detailed in our High Viscosity Mixer Guide and implemented across turnkey sealant and adhesive production plants, the Double Planetary Mixer (PMX series) represents the technological peak of high-torque compounding. This guide evaluates four primary double planetary configurations — Laboratory/Pilot Planetary Mixers (5L–30L), Standard Industrial Compounding Mixers (100L–500L), Heavy Battery Slurry Vacuum Planetary Mixers (600L–1,000L), and Ultra-High-Viscosity Multi-Shaft Hybrid Systems (1,500L–2,000L) — so engineering directors can choose the proper blade geometries and extrusion auxiliaries prior to submitting an RFQ.
POLYC has supplied custom double planetary mixers and hydraulic extrusion systems to energy, aerospace, and electronics manufacturers worldwide — detailed case study coming soon.
POLYC PMX Series Double Planetary Mixer: Heavy Planetary Gearbox, Mobile Jacketed Tank, and High-Torque Helical Twist Agitators.
Double Planetary Mixer Model Specifications & Working Capacities
| Model Series & Class | Total / Working Volume | Viscosity Capability | Standard Blade Geometry | Main Drive Power | Relative Investment Tier |
|---|---|---|---|---|---|
| 1. R&D & Pilot Series (PMX-5L / 30L) | 5L – 30L (Working: 2L – 20L) |
Up to 1,000,000 cps | Dual helical twist blades + PTFE wall scraper (Precision 1.5mm wall clearance) | 2.2 kW – 7.5 kW | Entry Pilot & Lab Tier |
| 2. Mid-Capacity Industrial (PMX-100L / 300L) | 100L – 300L (Working: 60L – 200L) |
100,000 – 1,500,000 cps | Dual planetary multi-finger blades or helical spiral + bottom contour scraper | 15 kW – 37 kW | Core Industrial Production Tier |
| 3. Battery & Thermal Paste (PMX-600L / 1000L) | 600L – 1,000L (Working: 400L – 750L) |
Up to 2,000,000 cps | Dual 3D helical twist blades + independent high-speed dispersing saw-tooth shaft | 55 kW – 90 kW | Heavy-Duty Energy / Slurry Tier |
| 4. Heavy Sealant Complex (PMX-1500L / 2000L) | 1,500L – 2,000L (Working: 1,000L – 1,400L) |
800,000 – 2,000,000+ cps | Heavy planetary frame kneader + dual high-speed dispersers + 20 MPa hydraulic press | 90 kW – 160 kW | Turnkey High-Tonnage Mastic Tier |
*Note: System price scales according to working vacuum levels (-0.098 MPa), contact metallurgy (SUS304, SUS316L, mirror electro-polish, or Tungsten Carbide ceramic coating), hydraulic ram discharge force, and ATEX Zone 1 explosion-proofing.
How to Select Your Double Planetary Mixer Configuration
Select your planetary architecture based on paste rheology, shear sensitivity, thermal limitations, and de-aeration thresholds across four core processing routes:
Scenario A: Lithium Battery Cathode/Anode Slurries & Solid State
Recommended Setup: Dual Helical Twist Blades + High-Speed Disperser Shaft + -0.098 MPa Vacuum
When dispersing carbon nanotubes (CNTs), PVDF binder, and high-nickel active powders into NMP solvents. Helical twist blades lift dense solids from the tank bottom while folding the high-viscosity paste into high-speed dispersing teeth, preventing agglomerates and hot-spot degradation under tight temperature thresholds (< 35°C).
Scenario B: Micro-Electronic Thermal Greases & Solder Pastes
Recommended Setup: Planetary Multi-Finger / D-Blades + Full Zirconia/Silicon Carbide Cladding
Thermal greases feature massive solid loadings (up to 90% alumina, spherical silver, or boron nitride). Precision intermeshing multi-finger blades knead abrasive powders into silicone fluid without crushing the spherical particles, while wear-resistant ceramic coatings or Tungsten Carbide prevent metal shedding.
Scenario C: Structural Silicone & Polyurethane (PU) Adhesives
Recommended Setup: Heavy Frame Planetary Agitator + Hydraulic Follower-Plate Press (PHD)
For moisture-curing PU and structural glazing silicones (500,000 to 1,500,000 cps). Extreme low-speed planetary torque kneads low-bulk fumed silica under deep vacuum (-0.098 MPa). Upon completion, the mobile vessel moves beneath a 20 MPa hydraulic follower-plate ram to extrude paste without entrapping air bubbles.
Scenario D: Laboratory Testing, Dental Resins & Pilot Synthesis
Recommended Setup: Benchtop / Standalone Pilot Double Planetary Mixer (PMX-5L / 30L)
Engineered for university labs, dental composite manufacturers, and pilot development where batch materials are costly. Operates with samples as small as 1.5L to 15L, integrating digital torque displays, product temperature probes inside the paste, and easy-clean mirror-polished stainless contact parts.
Core Double Planetary Equipment & Discharge Auxiliaries
PMX Industrial Planetary
High-torque dual planetary motion for pastes up to 2,000,000 cps.
Planetary Station
Complete compounding system with interchangeable mobile tanks.
Hydraulic Extruder (PHD)
20 MPa hydraulic follower plate for zero-residual paste discharge.
Lab Planetary 30L
Compact vacuum pilot unit for precise formulation development.
Engineering Architecture: Planetary Mechanics & High-Torque Kneading
1. Planetary Kinematics: Orbital Revolution & Axial Rotation
Standard mixers rely on fluid convection to bring material to the agitator. At viscosities exceeding 100,000 cps, material slips against standard impellers, creating an isolated spinning core and leaving the perimeter stagnant.
The POLYC Double Planetary Mixer eliminates this dead zone by rotating two identical agitator shafts on their own individual axes (0–80 rpm) while simultaneously revolving the entire planetary assembly around the central axis of the vessel (0–50 rpm). The resulting overlapping cycloidal paths sweep every cubic millimeter of the vessel within minutes.
2. Impeller Geometries: Helical Twist vs. Finger Blades vs. Dispersers
Agitator blade geometry governs energy dissipation and shear profile:
• Helical Twist (Spiral) Blades: Feature a 3D curved profile that mechanically forces dense paste downward from the surface while lifting material from the dish bottom, preventing phase separation in heavy battery slurries.
• Planetary Multi-Finger / Frame Blades: Maximize intermeshing shearing zones, ideal for folding low-density fumed silica into liquid silicones.
• Hybrid High-Speed Dispersing Shafts: Secondary high-speed shafts (up to 3,000 rpm) revolve alongside the planetary agitator, providing targeted micro-shear to break sub-micron agglomerates.
3. Deep Vacuum De-Aeration (-0.098 MPa) & Mechanical Seals
Microscopic air voids inside high-viscosity pastes cause catastrophic defects — such as pinholes in cured silicone beads, dielectric breakdown in electronic potting, and electrical impedance spikes in battery electrodes.
POLYC planetary mixers incorporate precision-machined heavy dish hoods fitted with silicone or fluoroelastomer profile seals. Operating under deep vacuum (-0.098 MPa), the planetary blades stretch the paste into thin films against the tank wall, enabling trapped micro-bubbles to expand and boil off completely. Cartridge double mechanical seals prevent air ingress through revolving planetary shafts.
4. Positive Displacement Follower-Plate Hydraulic Extrusion (PHD Series)
Because 500,000+ cps material does not flow gravitationally, opening a bottom valve results in zero discharge. POLYC pairs its double planetary mixers with dedicated hydraulic extrusion presses (PHD series).
The mobile vessel rolls beneath a heavy steel follower plate fitted with an inflatable or dual O-ring wiper seal. Driven by a 15 to 20 MPa hydraulic ram cylinder, the follower plate forces paste downward through a bottom sanitary valve directly into cartridge filling lines or drum manifolds, leaving less than 0.5% product residue.
What Factors Drive the Price of a Double Planetary Mixer?
When evaluating commercial equipment proposals for double planetary systems, quotations reflect four major engineering cost drivers:
1. Planetary Reducer Gearbox Sizing & Service Factor
Transmitting continuous high torque at 10 to 40 rpm into 1,500,000 cps paste requires heavy-duty hardened planetary gear reducers (SEW / Sumitomo / Brevini) with high mechanical service factors ($SF \ge 2.0$) to withstand extreme shear shocks without tooth fatigue.
2. Metallurgy, Wear Cladding & Mirror Polish
Standard industrial sealants utilize SUS304. High-performance battery slurries and electronics pastes require SUS316L mirror polishing (Ra < 0.2 μm) or ceramic coatings (Silicon Carbide / Tungsten Carbide) to prevent abrasive wear and metal ion contamination.
3. Independent High-Speed Disperser Add-Ons
A pure double planetary mixer operates dual low-speed blades. Incorporating one or two independent high-speed dispersing shafts (running at 1,400 to 3,000 rpm on revolving orbital arms) requires complex concentric mechanical drives and dual motor packages.
4. Auxiliary Hydraulic Ram Press & Mobile Vessels
Turnkey installation pricing includes the hydraulic follower-plate discharge press (10-ton to 40-ton ram ratings) and the number of interchangeable stainless steel mobile vacuum jacketed mixing vessels (200L to 2,000L).
Why Choose POLYC for Double Planetary Mixers?
In-house planetary gearbox precision CNC boring, dynamic impeller balance testing, and hydraulic ram trials at POLYC's 9,000 m² Wuxi manufacturing plant.
🏭 Real Direct Manufacturing & Turnkey Engineering
Shanghai Polyc Technology Co., Ltd. manufactures double planetary mixers inside our fully-owned 9,000 m² production facility in Wuxi, Jiangsu Province. Sourcing directly from the factory eliminates intermediate trading agent commissions, gives your engineering team direct access to planetary drivetrain designers, and guarantees strict ISO9001 and CE conformity.
🤝 3-Year Global Warranty & Comprehensive Commissioning
All genuine POLYC double planetary mixers carry our standard 3-Year Global Warranty covering structural frames, planetary gear transmissions, hydraulic lifting cylinders, and primary electric drive motors. We provide comprehensive English wiring schematics, video installation instructions, and on-site engineer commissioning globally.
🧪 Free Material Testing & Torque Verification
Unsure whether your paste formulation requires helical twist blades, finger stirrers, or auxiliary high-speed dispersers? Courier a sample of your raw resins and powders to our Wuxi laboratory. We run trial batches on our pilot PMX-5L or PMX-30L vacuum planetary mixers, recording exact torque curves and degassing efficiency prior to machine fabrication.
Ready to Specify Your Double Planetary Mixer?
Share your target material viscosity (cps), working batch volume (5L to 2,000L), vacuum specifications, and workshop voltage requirements with our Wuxi engineering desk — we will deliver an optimized proposal and direct factory quote within 24 hours.
Frequently Asked Questions
What is the difference between a double planetary mixer and a concentric dual-shaft mixer?
Why are helical twist blades preferred for lithium battery slurry compounding?
How does the machine achieve deep vacuum (-0.098 MPa) through revolving planetary shafts?
Why is a hydraulic extrusion press (PHD series) required for double planetary mixers?
Can the mixer be heated or cooled during the planetary cycle?
What engineering factors determine the quotation of a double planetary mixer?
Related High-Viscosity Compounding & Milling Resources
