Core Technology & Working Principle
Above roughly half a million cps a paste stops behaving like a liquid. It climbs the shaft, opens a rotating cavity around the impeller and refuses to circulate, so a high-speed disc only ever touches the material it can physically reach. A double planetary mixer solves that by giving up on high tip speed and using geometry instead: two twist blades travel their own circular paths while the whole frame orbits the vessel center, so every point in the batch is visited by the blade surface on each revolution. That is why a planetary mixer can knead a 1.5M cps silicone gel without stalling, while a single-shaft disperser of the same motor power simply spins in a void. The PTFE scrapers matter just as much — without them, a stagnant film sits against the jacket and scorches. Sealing the vessel and holding -0.098 MPa during agitation then removes the air that charging introduced.
▲ Dual Orbital & Planetary Kinematics
The twist blades rotate on their own axes while the carrier frame revolves around the vessel axis. This compound trajectory forces non-flowing formulations into continuous three-dimensional kneading zones with no dead spots and no motor stall.
▲ Bubble-Free Vacuum Degassing
Dual mechanical seals and a dedicated vacuum gland hold absolute airtight integrity down to -0.098 MPa during high-torque agitation, so entrapped moisture and gas pockets are extracted from the batch instead of being folded back under the surface.
▲ Strict Thermal Stability
Configurable jackets — electric, steam or thermal oil — pair with PLC control to hold thermal uniformity within ±1 °C across a 0 °C to 220 °C working range, which is what protects heat-sensitive polymers from localized breakdown at the wall.
Precision Engineered Details
The four assemblies below decide whether a planetary mixer actually reaches the wall of the vessel, and whether the finished paste can leave it without being scooped out by hand.
PMX Technical Parameters
The table below lists the standard PMX line-up. Planetary and orbital speeds fall as capacity rises, because a large batch only needs the blade to keep visiting new material, while the dispersing shaft stays the high-shear element where one is fitted.
| Model | Working / Full Volume (L) | Tank Size Ø × Depth (mm) | Dispersing Power & Speed | Agitating Power & Speed | Orbital Speed (rpm) | Vacuum (MPa) |
|---|---|---|---|---|---|---|
| PMX-05L (Lab) | 5 / 8–11.7 | Ø240/288 × 180 | 0.75–2.2 kW (0–3000 rpm) | 0.55/1.5 kW (0–100 rpm) | 0–60 | -0.098 to -0.08 |
| PMX-100L | 100 / 130–140 | Ø600 × 460/500 | 4.0–11 kW (0–3000 rpm) | 4.0/11 kW (0–100 rpm) | 0–60 | -0.098 to -0.08 |
| PMX-300L | 300 / 265–287 | Ø720/750 × 650 | 11–22 kW (0–2500 rpm) | 5.5/18.5 kW (0–80 rpm) | 0–50 | -0.098 to -0.08 |
| PMX-600L | 600 / 650 | Ø1000 × 380 | 22–45 kW (0–1500 rpm) | 15/37 kW (0–60 rpm) | 0–40 | -0.098 to -0.08 |
| PMX-1000L | 1,000 / 1,227 | Ø1250 × 1000 | 37–75 kW (0–960 rpm) | 22/55 kW (0–50 rpm) | 0–30 | -0.098 to -0.08 |
*Parameters represent standard planetary configurations. Rotational speeds are governed by variable frequency drives (VFD). Custom blade geometries (twist, frame, claw), motor voltages (220V/380V/440V, 50Hz/60Hz), jacket circuits, hydraulic ram discharge press integration and explosion-proof configurations are engineered to the process requirement and quoted on request. Reference projects in your industry are available on request.
Our Manufacturing Advantages
🏢 Direct Source Factory
Shanghai Polyc Technology Co., Ltd. is not a trading house. Planetary gearbox assembly, heavy hydraulic column machining and vacuum vessel fabrication are all carried out at our 9,000 m² Wuxi plant, so you deal with the engineers who built the machine rather than a broker.
✈️ 30–45 Days Fast Delivery
Standardised planetary carriers and stocked stainless steel vessels let us ship standard PMX models within 30 to 45 days from drawing confirmation.
🛡️ Strict Quality Control
Every planetary mixer undergoes vacuum hold testing on the sealed vessel, planetary carrier runout checks and a loaded dry run before dispatch, under our ISO 9001 and CE certified manufacturing system.
🔧 3-Year Global Warranty
Every PMX planetary mixer is covered for three years on the planetary gearbox, the heavy hydraulic lift assembly and the structural mixing tank, with rapid DHL spare parts dispatch worldwide.
Target Application Spectrum
A planetary mixer is specified where the product will not flow under its own weight, or where air left in the finished part is a defect rather than a cosmetic issue:
Silicone Gels & Sealants
Structural Adhesives
Thermal Conductive Greases
Lithium Battery Slurry
Ready to Discuss Your Vacuum Double Planetary Mixer Requirements?
Tell us your material type, target viscosity in cps, batch size and whether you need an integrated hydraulic ram press — our Wuxi engineering team will specify the blade geometry, planetary-to-orbital speed ratio, motor power and jacket circuit, then quote directly from the factory within 24 hours.
Technical FAQ
Short answers to the questions buyers ask before specifying a vacuum double planetary mixer.