Mixers
Platform Triple Shaft Mixer (PSK) for High Viscosity Slurry & Sealant
Platform Triple Shaft Mixer (PSK Multi-Function Dispersing Kettle): PSK Platform Triple Shaft Mixer: Stirring, Dispersion and Emulsification in One Kettle. Capacity range 1,000 - 15,000 L. Typical applications: Construction Chemicals, Architectural Paints, Adhesives & Sealants, Industrial Coatings, Wood Coatings.
PSK Platform Triple Shaft Mixer: Stirring, Dispersion and Emulsification in One Kettle
The POLYC platform triple shaft mixer (PSK multi-function dispersing kettle) is a three shaft mixer built as a mixer for high viscosity slurry, paste and putty production, and also serves as a sealant mixer machine. It carries three independently controlled agitators on a single platform-mounted frame, so low-speed bulk stirring, high-speed dispersion and high-shear emulsification all happen in one vessel. With working capacities from 1,000 to 15,000 L and dispersing tip speeds up to 22 m/s, it replaces several separate machines for medium to ultra-high viscosity materials such as acrylic and silicone plasters, wall putty, adhesives, sealants and pastes.
Key Facts
- Equipment Type
- Mixers
- Capacity / Batch Range
- 1,000 - 15,000 L
- Motor Power
- 4 - 22 kW stirring + 11 - 75 kW dispersing
- Max Viscosity
- up to approximately 300,000 cP
- Typical Applications
- Construction Chemicals, Architectural Paints, Adhesives & Sealants, Industrial Coatings
Request a Quote
Response within 24 hours · Engineering consultation · Application review available
Where the POLYC Platform Triple-Shaft Mixer Performs Best
A three-agitator system built for stiff, high-solid formulations that defeat a conventional single disperser. Its wall-scraping anchor and dual high-speed shafts keep thick masses moving while breaking down agglomerates — ideal for plasters, coatings, adhesives, sealants and battery compounds.
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Construction Chemicals
As a platform triple-shaft mixer for plasters, it handles acrylic and silicone plasters, wall plaster and skim coat at up to 300,000 cP. Three-shaft shear plus wall scraping keeps stiff, high-solid compounds homogeneous.
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Architectural Paints
For textured coating and render production, bulk convection and high-speed dispersion work together in a single large vessel, reducing transfer and contamination between colours.
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Adhesives & Sealants
For heavy-filled adhesive and sealant compounding, the two dispersing shafts wet and disperse high filler loads while the anchor prevents settlement during long batches.
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Industrial Coatings
For high-viscosity coating and paste mixing in large vessels, the platform-mounted frame supports sustained production-scale batches with stable temperature control.
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Battery Materials
For high-solids electrode compound mixing, the three-shaft arrangement disperses dense, high-solid electrode slurries uniformly without agglomerates.
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Cosmetics
For high-viscosity paste and cream manufacturing, gentle bulk mixing plus on-demand shear protects temperature-sensitive bases; contact parts in stainless steel 316L.
POLYC Platform Triple-Shaft Mixer at a Glance
Series Overview1,000–15,000L
Working Capacity
4–22 + 11–75kW
Motor Power
≤300,000cP
Viscosity Range
22m/s
Tip Speed
Key Design Features
EngineeringThree Agitators⚙️
Three Agitators, One Vessel
- Three independently controlled agitators combine high-shear dispersion and low-speed bulk movement
- One vessel replaces several separate machines
- Frame, anchor, butterfly, ribbon, dispersing disc or emulsifying head
High-Viscosity🔀
Built for Stiff Compounds
- Engineered for high-viscosity plasters and coating compounds up to ~300,000 cP
- Handles heavy-filled and high-solid formulations
- Stable at production scale
Wall-Scraping🪓
Wall-Scraping Anchor
- Anchor with high-wear PTFE scrapers prevents build-up
- Continuous discharge with zero batch residue
- Ideal for stiff, thixotropic masses
Heavy-Duty🔧
Heavy-Duty Drive
- Heavy-duty drive and shaft design for sustained load
- Platform-mounted for large production vessels
- Low-vibration operation
Platform Mount⬆️
Platform / Frame Configuration
- Platform or frame mounted for 1,000-15,000 L vessels
- Serves large-batch production
- Easy access for cleaning
Vacuum + Jacket❄️
Vacuum & Jacketed Vessel
- Optional vacuum defoaming
- Jacketed heating / cooling for precise control
- Stainless steel 304 / 316L contact parts
Applications by Industry
Selection| Industry | Typical Products | Why Platform Triple-Shaft Fits |
|---|---|---|
| Construction Chemicals | Acrylic / silicone plaster, wall plaster, skim coat | Three-shaft shear plus wall scraping for stiff, high-solid plasters to 300,000 cP |
| Architectural Paints | Textured coating, render | Bulk convection + dispersion in one large vessel |
| Adhesives & Sealants | Heavy-filled adhesive, sealant compounding | Dual dispersing handles high filler loads |
| Industrial Coatings | High-viscosity coating, paste | Platform mount for large-batch production |
| Wood Coatings | Viscous filler, coating compound | Wall-scraping anchor keeps thick masses homogeneous |
| Cosmetics | High-viscosity paste, cream | Gentle bulk mixing plus on-demand shear; SS316L |
| Food | Heavy paste, filling at production scale | Platform-mounted for large vessels; hygienic stainless steel |
| Ceramics | Ceramic paste, body | High-shear dispersion of dense, high-solid bodies |
| Battery Materials | High-solids electrode compound | Three-shaft mixing of high-solid electrode slurries |
Choosing the Right Platform Triple-Shaft Mixer
How to Choose1
What viscosity and solids are you processing?
Up to ~300,000 cP with high solid load or thixotropy → Platform triple-shaft. For > 1,000,000 cP kneading pastes → Planetary mixer. For pourable low-viscosity liquids → a single High-Speed Disperser is enough.
2
What batch size and mounting do you need?
Vessels of 1,000 to 15,000 L, platform or frame mounted for large production vessels. Confirm the mounting style and lifting / swing requirements before final sizing.
3
Which options do you need?
Optional vacuum defoaming, jacketed heating / cooling, and the agitator configuration (frame, anchor, butterfly, ribbon, dispersing disc or emulsifying head) are all specified at the order stage.
Related Technical Guides
Guides
ComparisonDual Shaft vs Triple Shaft Mixer for Sealants
SelectionTypes of Paint Mixing Machines: Which Mixer Fits Your Coating?
GuideHigh Viscosity Mixer Selection Guide
ApplicationAdhesive & Sealant Mixing to Filling: High-Viscosity Solutions
Need help sizing a platform triple-shaft mixer for your process?
Request a QuotationApplication Scenarios: Plaster, Putty, Stucco and Coating Mixing
The PSK is the machine of choice where wall finishing products must be compounded at high viscosity. It runs as a wall plaster mixer and a Plaster mixer for gypsum, cement and lime plasters, as a high viscous putty mixer, a wall putty mixer and a putty mixer for interior and exterior filling compounds, and as a mixer for wall putty and a mixer for acrylic stucco in decorative finishes. For facade products it acts as a textured coating mixer where heavy filler and aggregate loadings have to be wetted and kept in suspension.
Paint and coating plants also order the platform as a waterproof paint mixer, a floor paint mixer and a Polyurethane mixer for solvent-free PU systems, as a marine coating mixer and a road marking paint mixer, and as an epoxy floor paint mixer where two-component systems are blended before filling.
Finish and specialty duties include a protect coatings mixer, a PVC Coatings mixer and a PU Coatings mixer, a fire retardant paint mixer, a compound material mixer and a leather colours mixer, plus direct colour work described as a mixer for automotive paint, a mixer for repair paint, a mixer for interior wall paint, a mixer for exterior wall paint and a mixer for decorative paint. In adhesive plants the same vessel handles sealant and adhesive mixing duties including an acrylic sealant mixer, and in specialty chemistry it is used as a mixer for acrylic acid and its derivatives.
Ink producers run it as an ink mixer for gravure ink mixer, flexo ink mixer, UV ink mixer and silk screen ink mixer batches, as well as a printing ink mixer where pigment concentrates are let down to finished viscosity.
Typical Viscosity Range
This machine is engineered for the following viscosity band. The exact model and blade configuration are selected after reviewing your material and process.
| Typical viscosity | Up to 300,000 cP |
|---|---|
| Typical materials | High-viscosity plasters, coating compounds, adhesives, sealants, battery electrode compounds |
Description
How it works
The POLYC Platform Triple-Shaft Mixer (also called a multi-function dispersing kettle) is a heavy-duty processing system built around three independently controlled agitators on a single platform-mounted frame. It combines low-speed bulk stirring, high-speed dispersion and high-shear emulsification in one vessel, replacing several separate machines for medium to ultra-high viscosity materials such as acrylic and silicone plasters, wall putty, adhesives, sealants and pastes.
Two high-speed dispersing shafts work together with a wall-scraping anchor or frame agitator to keep stiff, high-solid formulations moving while breaking down agglomerates. High-wear PTFE scrapers cling to the vessel wall to prevent build-up and ensure complete discharge with zero batch residue, which is critical when switching between coloured or filled compounds.
The vessel is available with a jacket for heating or cooling and can be run under vacuum to remove entrapped air from pastes and adhesives. With working capacities from 1,000 to 15,000 L, a heavy-duty drive rated up to 132 kW, and all product-contact parts in stainless steel 304 or 316L, the platform triple-shaft mixer is engineered for sustained, low-vibration production of coatings, inks, adhesives, sealants, ceramics and battery electrode compounds.
INDUSTRIES THIS MACHINE SERVES
Industries we serve
Adhesives & Sealants
High-viscosity mixing for adhesives, sealants, and polymer compounds.
Learn more →Battery Materials
High-viscosity cathode/anode slurry mixing for lithium battery production.
Learn more →Food & Chemical
Powder and paste mixing for food, pharmaceutical, and chemical applications.
Learn more →TYPICAL PERFORMANCE REFERENCE
| Material Type | Viscosity Range | Recommended Machine Type | Batch Size |
|---|---|---|---|
| Low-viscosity liquid | < 10,000 cP | Double shaft / high-speed | 100-2,000 L |
| Medium-viscosity paste | 10,000-100,000 cP | Planetary mixer | 50-1,000 L |
| High-viscosity compound | > 100,000 cP | Planetary / kneader | 50-500 L |
Typical reference values only. Actual results depend on formulation, bead material, and process conditions. Material testing is recommended before final selection.
TRIPLE-SHAFT VS DUAL-SHAFT VS PLANETARY
Which multi-shaft mixer fits your material?
| Dimension | Triple-Shaft (Platform) | Concentric Double-Shaft | Planetary Mixer |
|---|---|---|---|
| Shaft configuration | Three: anchor + 2 dispersing/emulsifying | Two: anchor + 1 dispersing | 2-3 offset orbiting arms |
| Viscosity range | up to ~300,000 cP | up to ~100,000 cP | up to ~1,500,000 cP |
| High-shear function | Dual dispersing + emulsifying head | Single dispersing disc | Orbital high-shear (varies) |
| Best for | Plasters, coatings, adhesives, battery compounds | Coatings, inks, adhesives | Kneading pastes, sealants, slurry |
| Mounting | Platform / frame for large vessels | Compact single drive | Bowl-based |
| Vacuum / jacket | Available | Available | Commonly available |
Read the full comparison guide: Dual Shaft vs Triple Shaft Mixer for Sealants
Process Engineering
Working Principle
- 1
The low-speed stirring shaft drives a frame or anchor agitator that slowly sweeps the vessel walls, moving material toward the high-speed dispersing zone.
- 2
The high-speed dispersion shaft drives a toothed disc that creates intense shear and turbulence, breaking down agglomerates and dispersing pigments and fillers.
- 3
The high-shear emulsification shaft (when equipped) generates extreme shear through a rotor-stator configuration, emulsifying immiscible phases and reducing particle size.
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PTFE scrapers attached to the low-speed agitator continuously wipe material from vessel walls, preventing buildup and ensuring complete discharge with zero residue.
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All three shafts operate independently, allowing operators to activate only the shafts needed for each processing stage, optimizing energy consumption and processing time.
Equipment Benefits
Equipment Advantages
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Three-in-one processing replaces three separate machines (stirrer, disperser, emulsifier) with one versatile system, reducing capital investment and floor space.
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PTFE scraper system ensures complete discharge with zero batch residue, critical for high-value formulations and minimizing material loss during color changes.
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Specifically designed for medium to ultra-high viscosity and thixotropic materials that standard mixers cannot handle effectively.
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Three independently controlled shafts provide flexible processing strategies, optimizing energy consumption and processing time for each stage.
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Optional vacuum defoaming and jacketed heating/cooling enable precise process control for bubble-free products and temperature-sensitive formulations.
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Direct manufacturing in POLYC 9,000 m2 facility ensures quality control, competitive pricing, and rapid delivery for export.
Technical Data
Technical Specifications
| Parameter | Value |
|---|---|
| Working capacity | 1,000 - 15,000 L |
| Motor power | 4 - 22 kW stirring + 11 - 75 kW dispersing |
| Viscosity range | up to approximately 300,000 cP |
| Agitation | Two dispersing shafts plus anchor or scraper |
| Tip speed | up to 22 m/s |
| Contact material | Stainless steel 304 / 316L |
| Mounting | Platform or frame mounted |
PRODUCT INQUIRY
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Equipment Guidance
Frequently Asked Questions
What is a platform triple-shaft mixer and how does it differ from a double-shaft mixer?
A platform triple-shaft mixer carries three independently controlled agitators on a platform-mounted frame: a wall-scraping anchor plus two high-speed shafts, typically a dispersing disc and an emulsifying head. A double-shaft mixer has only one high-speed shaft. The extra shaft gives the triple-shaft unit stronger high-shear and emulsifying capability for stiff, high-solid plasters and compounds.
What viscosity and solid content can it handle?
It is engineered for materials up to approximately 300,000 cP, including heavy-filled and high-solid formulations such as acrylic and silicone plasters, wall putty, adhesives and battery electrode compounds. For kneading-grade masses above roughly 1,000,000 cP, a planetary mixer is the better choice.
What do the three agitators do?
The wall-scraping anchor provides slow bulk turnover and clears material from the vessel wall, while the two high-speed shafts deliver dispersion and emulsification. Because they are independently controlled, you can combine gentle convection with intense shear in one vessel and switch strategies mid-batch.
What capacity range and motor power are available?
Working capacity ranges from 500 to 6,000 L, with motor power from 22 to 132 kW. The platform or frame mounting supports sustained, large-batch production.
How does wall scraping help with stiff formulations?
The anchor is fitted with high-wear PTFE scrapers that cling to the vessel wall and strip the boundary-layer film that forms on thick materials. This prevents build-up, keeps the batch uniform, and ensures complete discharge with zero residue when changing colours or formulas.
Can the vessel be vacuum and jacketed?
Yes. The vessel can be jacketed for heating or cooling and run under vacuum to remove entrapped air from pastes and adhesives. Both options are specified at the order stage.
What materials are the contact parts made from?
All product-contact parts are stainless steel 304 or 316L, suitable for hygienic or corrosion-sensitive applications such as cosmetics and food-grade pastes.
Which industries use the platform triple-shaft mixer?
Construction chemicals such as plasters and renders, architectural and industrial coatings, adhesives and sealants, wood coatings, cosmetics, food pastes, ceramics and battery electrode compounds. Any high-viscosity, high-solid process that needs both bulk mixing and high-shear dispersion is a fit.
Which mixer for high viscosity slurry should I choose?
For a mixer for high viscosity slurry in the 100,000-300,000 cP range you normally need a scraped vessel with both low-speed agitation and high-speed dispersion. The PSK triple shaft mixer gives 1,000-15,000 L working capacity with wall scraping, so plaster, putty and filled compounds stay uniform through the batch.
What does a sealant mixer machine have to handle?
A sealant mixer machine must compound highly filled, high-viscosity material without dead zones, then discharge it cleanly. The PSK combines a wall scraper, an anchor agitator and a high-speed disperser in one vessel, with optional vacuum for deaeration before filling.
Is a three shaft mixer the same as a triple shaft mixer?
Yes. Three shaft mixer and triple shaft mixer refer to the same three-agitator configuration. POLYC builds it as the PSK platform, covering acrylic and silicone plaster, wall putty, adhesives, sealants and pastes.
Industry Applications
Applications
Construction Chemicals
acrylic and silicone plaster mixing to ≤300,000 cP
Architectural Paints
textured coating and render production
Adhesives & Sealants
heavy filled adhesive and sealant compounding
Industrial Coatings
high-viscosity coating and paste mixing in large vessels
Wood Coatings
viscous filler and coating compound mixing
Cosmetics
high-viscosity paste and cream manufacturing
Food
heavy paste and filling mixing at production scale
Ceramics
ceramic paste and body mixing
Battery Materials
high-solids electrode compound mixing
Construction Chemicals
wall plaster and skim coat compound production
WHY POLYC MACHINE
Built on Engineering Excellence Since 2006
Every machine is designed by our in-house R&D team, built in our own factory, and supported by the same team that has delivered over 8,000 systems worldwide.
ISO 9001 & CE Certified
Manufactured under an ISO 9001 quality management system. All machines comply with CE directives, with EC Declaration of Conformity for every order.
Experience Since 2006
Since 2006, POLYC has engineered wet grinding, dispersing and mixing systems for global manufacturers.
3-Year Warranty
Every machine carries a 3-year warranty with ongoing spare-parts supply and technical support after delivery.
30-Day Delivery
Standard models ship within 30 days of order confirmation. Custom-engineered lines are scheduled against your project timeline.
Free Installation Guidance
Free installation guidance and operator training are included with every machine, covering commissioning and safe start-up.
Custom Engineering
From lab-scale 0.5L to 12,000L production systems. Material testing, configuration and process design included.
24-Hour Response
Engineering consultation within 24 hours. Application review, technical specs and quotation delivered fast.
Global Shipping
Export-ready packaging with full documentation. DDP/FOB/CIF terms available for 80+ countries.
Lifetime Technical Support
Genuine spare parts, remote diagnostics and lifetime technical support for every machine we build.
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Tell us about your material and process. Our engineering team will recommend the right configuration.
Talk to an Engineer →Customer Experience
What manufacturers say about working with POLYC MACHINE
These summaries reflect published application cases. Company names and roles are representative of the industries we serve.
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The plaster and wall-material production line supplied by POLYC MACHINE integrated premixing, milling and transfer in one compact route. We reached consistent fineness across batches, and the local technical line made after-sales support responsive.
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For our short gravure-ink runs, the small-batch grinding and dispersion route from POLYC MACHINE gave repeatable colour and fast changeover. The trial plan proposed before manufacture confirmed our fineness window without over-specifying the machine.
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Our 1000L basket mill from POLYC MACHINE handles pigment and ink batches with the temperature control we needed for heat-sensitive formulations. Across multiple sites, the consistent basket-mill configuration simplified operator training and spare-parts planning.