Planetary kneader JCT VK series

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Overview
JCT VK series vertical kneaders are designed for mixing high-viscosity and low-fluidity materials across chemical, food, new energy and advanced materials industries. The machines combine a vertical cylinder, S-shaped planetary blades, jacketed heating/cooling and optional vacuum for controlled processing.

Product Summary
JCT Machinery supplies vertical kneaders with options for cylinder material (SS304/SS316 or carbon steel), blade configurations (hollow/solid S-shaped blades), PLC control and variable-frequency drives. Configurable features include jacketed heating/cooling, vacuum capability and bottom discharge to minimize residue.

Working Principle
The vertical kneader mixes materials inside a closed cylinder using vertically arranged S-shaped blades that rotate planetary-like. Key behaviours:

• Two interleaved blades rotate at different speeds to produce shearing, compression and folding for homogenous mixing.
• Jacketed cylinder enables steam, oil or electric heating and cooling for temperature control.
• Bottom discharge design and vacuum option allow efficient degassing and near-complete emptying.

Configuration

• 1. Body: Vertical mixing cylinder (SS304/SS316 or carbon steel); optional contact-surface coatings; liftable cylinder.
• 2. Blades: S-shaped blades (hollow or solid), typically stainless steel; shaft and seals are isolated from product contact.
• 3. Drive: Variable-frequency motor with reducer for broad speed range.
• 4. Heating/Cooling: Electric, steam or oil-jacket options.
• 5. Control: PLC for automatic control of temperature, time and speed; human-machine interface available.
• 6. Safety: Overload protection, emergency stop; optional peripheral protective net.

Parameters

• JCT VK5 — Volume 2.5 L; central blade 2–20 rpm; rotating blade 10.4–104 rpm; drive 0.75 kW.
• JCT VK60 — Volume 30 L; central blade 1.5–15 rpm; rotating blade 6–56 rpm; drive 5.5 kW.
• JCT VK100 — Volume 50 L; central blade 1.4–14 rpm; rotating blade 6.5–58 rpm; drive 7.5 kW.
• JCT VK200 — Volume 100 L; central blade 1.3–12 rpm; rotating blade 6.7–49 rpm; drive 15 kW.
• JCT VK400 — Volume 200 L; central blade 1.1–11 rpm; rotating blade 4.4–44 rpm; drive 45 kW.
• JCT VK800 — Volume 400 L; central blade 1–10 rpm; rotating blade 3.7–37 rpm; drive 75 kW.

Advantages

• Planetary-like blade motion eliminates dead zones and prevents material sticking to walls.
• Sealed shaft and isolated seals reduce contamination and bearing corrosion risk.
• Stable vacuum capability (down to approximately -0.1 MPa) supports degassing.
• Jacket with temperature controller provides precise thermal management.
• Multiple-cylinder configurations, simple bottom discharge and easy cleaning support continuous production.
• Capable of processing very high-viscosity materials (>800,000 cps) and materials with poor flowability.
• Low-speed kneading limits polymer chain damage and excessive torque risks compared to high-speed dispersion.

Applications

• Organosilicon composites
• Medical polymer materials
• Carbon-fiber-reinforced polymers
• Pirotechnic / initiating materials (specific handling requirements)
• Electronic thermal interface materials
• Ceramic matrix composites

Technical specifications

• Series: JCT VK series (VK5, VK60, VK100, VK200, VK400, VK800).
• Volumes: 2.5–400 L; special sizes customizable.
• Materials: cylinder and blades SS304/SS316 or carbon steel; optional anti-wear or anti-adhesion coatings.
• Heating: electric, steam or oil jacket; PLC temperature control.
• Vacuum: degassing and vacuum operation capability to approx. -0.1 MPa.
• Control: PLC + VFD for automated process control.
• Safety: overload protection, emergency stop and optional protective net; explosion-proof options for specific applications.
• Customization: tailored sizes and configurations available on request.