Propellant Vertical Kneader

Propellant vertical kneader is indisoensable core process equipment in the aerospace, defense, and civilian blasting fields.

10L Propellant Vertical Kneader Parameters (for reference)

Volume	10L
Working Volume	60-80%
Mixing Method	Vertical double-paddle kneading
Main Motor Power	3-7.5kW (optional)
Rotation Speed Range	0-60rpm (variable frequency)
Equipment Material	SS304/SS316
Heating Method	Electric heating/ Thermal oil / Water (optional)
Design Pressure	Atmospheric pressure / Slight negative pressure (optional)
Discharging Method	Bottom discharge

**Design according to customers' actual needs.

vertical kneader

Propellant vertical kneader typically employ a planetary mixing structure.

Double-blade design: Two "∑"-shaped impellers rotate at high speed around their own axes while simultaneously revolving around the center line of the mixing cylinder.
Kneading action: The gaps between the impeller blades and between the impeller blades, and between the impeller blades and cylinder wall are extremely small. This powerful shearing, stretching, and compressing action forcefully breaks down and penetrates high-viscosity materials, ensuring that micron-sized oxidant particles are perfectly coated by the binder.

Features	Description
Bottomless shaft seal design	The stirring shaft enters from the top, and the bottom of the cylinder is completely sealed. This prevents material from leaking into the bearings and generating heat through friction, greatly reducing the risk of explosion
Vacuum mixing	The system can achieve a high vacuum, removing air bubbles from the propellant and improving its density and burning rate stability
Precise temperature control	The cylinder body is jacketed, allowing for precise temperature control via circulating warm water or oil
Minimum material residue	The stirring impeller perfectly matches the shape of the cylinder bottom, ensuring clean discharge adn facilitating cleaning and product changeover

vertical kneader cabinet

Explosion-proof configuration: The entire machine uses an explosion-proof motor and is equipped with a nitrogen protection system.
Automatic gap monitoring: The gap between the impeller and cylinder wall (typically 2-5mm) must be strictly calibrated to prevent sparks from metal-to-metal friction.
Remote control: Operators typically operate remotely from an explosion-proof control room via real-time monitoring and digital instruments.

Current propellant kneading technology is developing towards larger capacity and greater intelligence.

Larger size: To meet the demands of large solid rocket motors, the volume of propellant vertical kneaders has increased from 10L and 600L to 1000L and even larger.
Fully automated sampling: Reducing the frequency of human contact with hazardous materials.

Contact our technical engineers for technical support: +86-18138373963 (Whatsapp, Wechat) or sigmamixer@outlook.com.

vertical kneader