The definitive engineering guide for high-viscosity chemical processing. Discover turnkey EPC solutions featuring heavy-duty vacuum planetary mixers and automated hydraulic extruders for Silicone, Polyurethane (PU), and MS Polymer sealants.
Manufacturing structural adhesives and industrial sealants is drastically different from mixing standard liquid paints. As large volumes of fumed silica, calcium carbonate, and resins are blended, the viscosity rapidly skyrockets. "If your mixer lacks the mechanical torque, the blades will stall and burn the motor. If the vessel cannot maintain a deep vacuum, trapped air and moisture will cause the silicone to prematurely cure and harden into a solid block inside the tank."
POLYC engineers Complete Turnkey Adhesives Plants designed specifically to conquer extreme viscosities. For the core compounding stage, our PMX Double Planetary Mixers utilize dual orbital kinematics to knead pastes up to 1,500,000 cps. The entire process runs under strict vacuum (-0.098 MPa) to continuously extract micro-bubbles and trace water vapor. Because these pastes cannot flow out via gravity, our systems integrate heavy-duty Hydraulic Ram Presses that seamlessly dock with the mobile tanks to extrude the sealant directly into automated cartridge filling lines.
From raw material vacuum feeding and thermal jacket heating, to high-shear dispersion and final automated packing, POLYC delivers fully integrated PLC-controlled production lines tailored for global sealant manufacturers.
POLYC Sealant Production Ecosystem: A heavy-duty double column PMX Planetary Mixer (right) completing the high-viscosity compounding phase, paired with a docking Hydraulic Extrusion Press (left) for automated discharge.
| Equipment Phase | Core Machinery Supplied | Process Function | Technical Highlights |
|---|---|---|---|
| 1. High-Viscosity Mixing | PMX Double Planetary Mixer | Intensive kneading of base resins, fumed silica, and crosslinkers. | Handles up to 1,500,000 cps; Vacuum (-0.098 MPa) prevents air/moisture entrapment. |
| 2. Alternative Mixing | PCM Concentric Dual-Shaft Mixer | Processing medium-high viscosity pastes and heavy wall putties. | Handles 100k–150k cps; Dual-shaft (high-speed disperser + low-speed PTFE scraper). |
| 3. Paste Discharge | Hydraulic Ram Press (Extruder) | Forcing the non-flowing sealant out of the mobile mixing tank. | Massive hydraulic platen perfectly matches tank diameter; Zero material waste. |
| 4. Turnkey Plant Systems | Automated EPC Platforms | Greenfield factory setups from powder feeding to cartridge packing. | Full 3D CAD layouts; PLC integrated load cells; Vacuum powder suction lines. |
Process Profile: Highly thixotropic pastes that cure upon exposure to atmospheric moisture. Requires heavy filler dispersion (calcium carbonate) into silicone polymers.
Optimal Equipment: PMX Double Planetary Mixer. The deep vacuum (-0.098 MPa) extracts all moisture during the compounding phase, guaranteeing the sealant remains stable and uncured inside the cartridge for years.
Process Profile: Automotive windshield glues and structural adhesives. Highly viscous and extremely sensitive to heat generation during the shear process.
Optimal Equipment: Planetary Mixers equipped with precision cooling jackets. The dual orbital kinematics generate massive folding action rather than localized high-friction shear, preventing the PU prepolymers from thermal degradation.
Process Profile: Advanced hybrid sealants combining the benefits of PU and silicone. Requires completely air-free homogenization of resins, plasticizers, and silane coupling agents.
Optimal Equipment: Multi-shaft designs (Planetary + High-Speed Disperser). The planetary blades handle the macroscopic folding while the independent high-speed shaft destroys powder micro-clusters.
Process Profile: Thick construction pastes loaded with heavy mineral powders (100k–150k cps), requiring continuous scraping to prevent material buildup.
Optimal Equipment: PCM Concentric Dual-Shaft Mixer. Features a central high-speed disperser combined with a robust outer anchor equipped with PTFE scrapers to physically force the putty off the walls.
In a standard single-axis mixer, 1,000,000 cps sealant simply sticks to the tank walls while the blade spins uselessly in the center, causing the motor to stall. The PMX utilizes true planetary motion: the heavy twist blades rotate on their own axes while simultaneously orbiting around the center of the vessel. This 3D kinematics physically forces every cubic centimeter of the dense paste directly into the intense kneading zones.
Unmixed powders residing on the tank walls destroy the chemical ratio of the sealant batch. POLYC equips the planetary framework with flexible Teflon (PTFE) scrapers. As the planetary assembly orbits, these scrapers constantly wipe the vessel walls and bottom clean, ensuring absolute 100% batch homogeneity and maximizing heat transfer from the cooling jacket.
You cannot open a valve to discharge silicone. Once the mixing cycle is complete, the mobile SS304 tank is uncoupled from the planetary mixer and wheeled under the Hydraulic Ram Press. The press lowers a perfectly sized platen (equipped with O-ring seals) directly onto the surface of the paste. Massive hydraulic pressure forces the sealant downward, out through the bottom discharge port, directly into standard filling/packaging lines with zero material waste.
[Client industry & country — to confirm with sales]
[Client industry & country — to confirm with sales]
[Client industry & country — to confirm with sales]
[Client industry & country — to confirm with sales]
POLYC's 9,000 m² manufacturing facility in Wuxi. We handle 100% of steel fabrication, planetary gearbox assembly, and vacuum load testing in-house.
🏭 Guaranteed Source Factory
Shanghai Polyc Technology Co., Ltd. is not an engineering broker. We design and build the PMX planetary gearboxes, heavy hydraulic columns, and vacuum vessels from raw steel. Sourcing directly from us eliminates middleman markups, ensuring you get heavy-duty, ISO9001-certified EPC plant equipment at authentic factory-direct pricing.
🤝 3-Year Global Warranty & Turnkey Support
We customize every aspect of your sealant plant—from automated powder silos to the exact twist blade geometries. Every core mixing unit is backed by an exclusive 3-Year Global Warranty on main structures and motors, supported by complete plant installation and commissioning services globally.
Share your adhesive type (Silicone, PU, MS), target daily output (Tons), maximum paste viscosity, and packaging format (Cartridges/Drums). POLYC engineering will recommend the exact equipment matrix and provide a turnkey proposal within 24 hours.