High Viscosity Mixing & Packaging Solution: Concentric Dual Shaft Reactor & Hydraulic Tube Filling Sealing Machine Guide 2026
High Viscosity Mixing & Packaging System: Concentric Dual Shaft Reactor & Hydraulic Tube Filling Sealing Machine Guide 2026
Processing non-flowing, thixotropic pastes with viscosities spanning 5,000 cps to 500,000+ cps—such as silicone structural sealants, polyurethane adhesives, thermal conductive greases, and heavy chemical putties—presents dual engineering challenges: eliminating stagnation and heat buildup during mixing, and executing void-free, bubble-free filling during packaging. POLYC integrates two complementary high-torque technologies: the Concentric Dual Shaft Mixing Reactor (PCM Series) for deep-vacuum micro-dispersion and the High Viscosity Hydraulic Extrusion Tube Filling & Sealing Machine (PHD Series) for airtight packaging.
1. Concentric Dual Shaft Mixing Reactor (PCM Series)
The Concentric Dual Shaft Mixing Reactor is purpose-engineered for medium-to-high viscosity, shear-sensitive, and thixotropic formulations. Its structural hallmark is coaxial dual-axis geometry: an inner high-speed shaft drives a Cowles serrated dispersing disc, while a hollow outer shaft rotates a low-speed anchor frame equipped with flexible polytetrafluoroethylene (PTFE) wall scrapers. This coaxial architecture ensures that high-shear kinetic energy shatters agglomerates at the vessel center while the anchor continuously pulls wall-boundary material back into the active vortex zone.
Dead-Zone-Free PTFE Wall Scraping
The outer anchor rotates closely along the internal kettle profile. Spring-loaded PTFE scrapers peel viscous paste off the heated/cooled vessel wall, preventing localized thermal degradation and boosting overall jacket heat-exchange efficiency by over 40%.
High-Velocity Powder Dispersion (20–25 m/s)
Operating at tip speeds of 20 to 25 m/s, the central high-speed Cowles disc generates powerful hydraulic shear that breaks down stubborn mineral fillers, fumed silica, and pigment clusters for rapid wetting into base polymers.
Deep Vacuum De-Aeration (≤ -0.098 MPa)
The hermetically sealed vessel operates under continuous high vacuum (up to -0.098 MPa). Entrained micro-bubbles and process moisture are extracted during active compounding, ensuring maximum paste density and cured mechanical strength.
Dual-Motor VFD Adaptive Torque Control
Driven by two independent electric motors with variable frequency drives (VFD), shaft speeds can be modulated separately during raw powder feeding, heavy kneading, and final dilution, minimizing overall power draw.
Target Applications for Concentric Dual Shaft Mixers:
- Adhesives & Sealants: Neutral silicone sealants, polyurethane glass glues, structural adhesives, hot-melt resins.
- New Energy Materials: High-solid lithium battery electrode slurries, thermal conductive silicones, electronic potting compounds.
- Chemical & Protective Coatings: Automotive body putties, high-build anti-corrosive pastes, offset lithographic inks, cosmetic creams.
2. High Viscosity Hydraulic Tube Filling & Sealing Machine (PHD Series)
Dense, thixotropic materials like glass glue, silicone sealants, and structural pastes exhibit near-zero gravity flow and cannot be handled by conventional gravity or vacuum fillers. The High Viscosity Hydraulic Tube Filling & Sealing Machine pairs directly with mobile mixing vessels. A heavy-duty hydraulic ram press exerts immense downward force on a precision follower plate, extruding the paste directly into volumetric metering heads to execute void-free, continuous filling into hard plastic cartridges or flexible sausage packs.
Volumetric Dosing Precision (±0.5%)
Featuring precision servo-driven displacement plungers and electronic load-cell sensors, filling weight accuracy is maintained within ±0.5%, preventing overfill giveaway in high-value electronic and chemical pastes.
Airtight Submerged Injection
The filling nozzle descends to the cartridge base and rises synchronously as material dispenses under positive hydraulic pressure. This prevents air pocket formation and protects moisture-curing sealants from premature solidification.
High Hydraulic Extrusion Stability
Reinforced structural hydraulic masts deliver steady extrusion pressures (up to 20 MPa), maintaining constant material delivery rates through high-viscosity manifold lines even during winter temperature drops.
Sanitary Mirror Polishing & Fast Color Change
Wetted stainless steel surfaces feature high-precision mirror polishing (Ra < 0.4 μm) with quick-clamp sanitary fittings, enabling fast washdowns and rapid color shade changeovers with minimal solvent waste.
Target Packaging Formats:
- Rigid Cartridge Packaging: 300ml / 310ml standard plastic hard tubes for silicone glass adhesives, MS polymers, and acrylic caulk.
- Flexible Sausage Packaging: 400ml / 600ml aluminum film sausage packs for construction structural polyurethane adhesives.
- Specialty Pastes & Greases: Solder pastes, dental impression compounds, high-viscosity pharmaceutical ointments, automotive seam sealers.
3. Integrated Production Line: Technical Specifications Comparison
The table below outlines the core engineering parameters for POLYC concentric mixing reactors and hydraulic tube filling systems:
| System Module | Operating Principle | Viscosity Capability | Batch / Output Range | Key Technical Feature |
|---|---|---|---|---|
| Concentric Dual Shaft Mixer (PCM) | Coaxial inner high-speed Cowles disc + outer PTFE anchor scraper | 5,000 – 100,000 cps | 50 L – 3,000 L / batch | Vacuum defoaming (≤ -0.098 MPa), zero dead zone. |
| Triple Shaft Heavy Reactor (PSK) | Dual high-speed dispersers + independent anchor wall scraper | 50,000 – 300,000 cps | 200 L – 5,000 L / batch | Multi-motor high torque for structural sealants. |
| Hydraulic Extrusion Press (PHD) | Piston follower plate forced downward hydraulic discharge | Up to 1,500,000 cps | Matches 50L – 1,500L mobile tanks | 20 MPa hydraulic force, zero residual heel. |
| Automatic Tube Filling & Sealing Machine | Servo volumetric plunger injection + automatic plunger insertion | Paste & mastic grade | 25 – 45 tubes / min | ±0.5% dosing precision, submerged airless fill. |
Why Choose POLYC for Turnkey High-Viscosity Systems?
🏭 Real Direct Manufacturer in Wuxi, China
Shanghai Polyc Technology Co., Ltd. (上海朋绎科技有限公司) operates an active 9,000 m² manufacturing plant in Wuxi, Jiangsu Province. By handling steel plate rolling, precision CNC turning, dynamic shaft balancing, hydraulic assembly, and automated testing in-house, we eliminate multi-tier trading company markups and ensure complete engineering accountability.
⚙️ Complete Integrated Process Engineering
POLYC provides seamless engineering integration between upstream vacuum compounding reactors and downstream hydraulic packaging units. This closed-loop design eliminates material transfer bottlenecks, minimizes product exposure to ambient air, and reduces overall factory footprints.
🤝 3-Year Global Warranty & Direct Support
All genuine POLYC mixing reactors and packaging machines include our standard 3-Year Global Warranty covering structural vessels, hydraulic cylinders, and drive powertrains, supported by remote video commissioning and expedited air dispatch of spare seals and wear parts.
Configure Your High-Viscosity Production Line with Factory-Direct Support
Share your paste formulation, viscosity range (cps), batch size (L), and packaging tube specifications with our Wuxi engineering desk — we will deliver an integrated proposal and direct factory quote within 24 hours.
Frequently Asked Questions
What makes a concentric dual-shaft mixing reactor superior for high-viscosity paste processing?
Why is a hydraulic extrusion filling machine required instead of a standard gravity filler for sealants?
How does the system prevent air bubbles from contaminating the finished cartridge?
What types of packaging containers can the hydraulic tube filling machine process?
What is the dosing accuracy of POLYC hydraulic filling and sealing equipment?
What warranty and service support does POLYC provide for turnkey mixing and filling lines?
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