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Propellant Double Planetary Mixer | JCT Machinery

October 27, 2025
vertical kneader
Propellant double planetary mixer, also called propellant vertical kneader, is a high-intensity mixing device designed specifically for high-viscosity and high-hazard materials (such as solid propellants, gunpowder bases, energic materials, etc.). Compared with ordinary mixing equipment, it has higher requirements in terms of structure, safety and sealing.


Propellant Double Planetary Mixer Features
  • 1. Vertical layout

  • Gravity-driven, self-circulating material flow ensures more thorough mixing. Its compact footprint makes it easy to install in explosion-proof workshops.

  • 2. High-strength double ∑-shaped propeller design

  • Made of specially steel or stainless steel, it can withstand the mixing of high-viscosity, high-shear materials.

  • 3. Vacuum sealing system

  • Enables vacuum degassing and sealed mixing, preventing energetic materials from coming into contact with air and potentially causing safety risks.

  • 4. Temperature control system

  • Cylinder jacket utilizes thermal oil, electric heating or circulating water cooling systems to precisely control the reaction temperature and prevent overheating and decomposition.

  • 5. Explositon-proof design

  • The moter, control cabinet and seals all meet explosion-proof standards, ensuring stable operation in hazardous environments.


JCT propellant vertical kneader

Propellant Double Planetary Mixer Advantages
1. High safety: Fully sealed, explosion-proof structure prevents material from contact with air.

2. High mixing uniformity: Strong shearing and kneading ensures uniform dispersion of all components.

3. Precise temperature control: A wide temperature control range prevents thermal decomposition of materials.

4. High automation: Optional PLC automatic control system enables full monitoring of temperature, vacuum and speed.


vertical kneader blade
Applicable Materials
• Solid propellant (such as HTPB-based and AP-based propellants)
• Gunpowder pastes
• Explosive binders and mixtures
• High-viscosity energetic resin-based materials



  • JCT offers propellant double planetary mixer in various capacities (10L-600L, other capacities available upon request). These include:
    • Customizable explosion-proof ratings (Exd Ⅱ BT4 and above)
    • Stainless steel, titanium alloy or nickel-based alloy linings
    • Automatic loading and vacuum exhaust systems
    • Thermal oil system with ±1℃ temperature control accuracy


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