Planetary mixer VK series

verticalbatchsolid/liquid

Overview
JCT vertical kneaders for fiber-resin composites use a top-mounted suspended mixing shaft and planetary double-blade action to enable uniform kneading of high-viscosity resins with high fiber contents while minimizing fiber damage. The design isolates dynamic seals and bearings from the material zone for high-purity production.

Applications and Key Capabilities

• Handles short fibers (1–10 mm) at fiber weight ratios above 50%.
• Handles long fibers (30–50 mm) at fiber weight ratios up to 50%.
• Suitable for polymer-matrix composites reinforced with glass, carbon or aramid fibers; also applicable to ceramic- or metal-matrix systems requiring fiber dispersion.

Product Details
Fiber-resin composites combine a matrix (resin, metal or ceramic) with a reinforcing fiber phase to deliver high specific strength, stiffness and dimensional stability. Uniform fiber–matrix distribution is critical to interfacial bonding and final part performance. The VK series addresses industry mixing challenges by providing controlled 3D shear, inter-peeling and compression to wet and disperse fibers evenly while preserving fiber length and integrity. High-vacuum capability and jacketed temperature control support degassing and precise processing of temperature-sensitive systems.

Equipment Parameters (table)
Model | Dimension H*L*W (mm) ; Weight ; Barrel Inner Size D*H (mm) ; Full Volume (L) ; Useful Volume (L) ; Min Volume (L) ; Power (KW) ; Pericentric Blade Speed (rpm) ; Telecentric Blade Speed (rpm) ; Revolution Speed (rpm) ; Clearance (MM) ; Vacuum Abs Pressure (kPa)
VK-10 | 2600*1600*1400 ; 2.5t ; 300*240 ; 16.9 ; 12 ; 2 ; 5.5 ; 0~25 ; 0~50 ; 0~6 ; 3±0.5 ; <1.5
VK-100 | 3200*2000*1600 ; 6t ; 600*480 ; 135 ; 100 ; 15 ; 22 ; 0~25 ; 0~50 ; 0~6 ; 4.5±0.5 ; <1.5
VK-500 | 4200*2500*2000 ; 12t ; 900*800 ; 500 ; 350 ; 60 ; 37 ; 0~22.5 ; 0~45 ; 0~6 ; 5.5±0.5 ; <1.5
VK-1000 | 5100*3000*2500 ; 24t ; 1200*1100 ; 1000 ; 600 ; 120 ; 45 ; 0~22.5 ; 0~45 ; 0~6 ; 6±1 ; <1.5
VK-2000 | 6000*4200*3000 ; 32t ; 1400*1300 ; 2000 ; 1200 ; 200 ; 55 ; 0~20 ; 0~40 ; 0~6 ; 7±1 ; <1.5
VK-3000 | 6500*4600*3400 ; 35t ; 1600*1500 ; 3000 ; 1800 ; 300 ; 75 ; 0~20 ; 0~40 ; 0~5 ; 8±1 ; <1.5
VK-5000 | 7300*5000*3600 ; 40t ; 1900*1800 ; 5000 ; 3000 ; 500 ; 110 ; 0~18 ; 0~36 ; 0~5 ; 9±1 ; <1.5

Design Advantages

• Top-mounted suspended agitator shaft keeps dynamic seals and bearings above the material zone to prevent contamination and seal wear entering the mixture—suitable for high-purity aerospace and semiconductor composites.
• Planetary kneading trajectory provides 3D shear and inter-peeling: blades rotate on their axes while orbiting the vessel center to generate intensive shear and compression between blades and vessel wall.
• Fiber-friendly design: optimized blade clearance and shear profiles produce thorough wetting and dispersion with minimized fiber breakage.
• High-vacuum degassing and jacketed vessel temperature control allow removal of entrapped gas and precise thermal processing (cold/hot water or hot oil circulation).

Characteristics / technical specifications

• Series: VK series (VK-10 to VK-5000).
• Top-mounted suspended mixing shaft; all dynamic seals and bearings located above the vessel.
• Planetary double-blade configuration delivering 3D shear, inter-peeling and thorough kneading.
• Designed for high-viscosity resins with high fiber loadings (short and long fibers) while minimizing fiber damage.
• Vacuum capability: typical absolute vacuum pressure < 1.5 kPa; supports operation down to approximately -0.098 MPa.
• Jacketed vessel for precise temperature control via water or oil circulation.
• Clearance, speed ranges and motor power vary by model (see Equipment Parameters table).