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Tsinghua University Adopts CO-NELE 350L CR15 Granulating Mixer for Rocket Propellant

2026.6.4  |  CO-NELE
CO-NELE, a leading name in high-end mixing and granulating technology, proudly announces a landmark partnership with Tsinghua University, one of China’s most prestigious academic institutions. Tsinghua University has officially selected the CO-NELE CR15 (350L) Intensive Granulating Mixer to support its advanced aerospace propulsion research, specifically for the homogeneous mixing and precision granulation of solid rocket propellant powders.
Aerospace-Grade Performance: The CR15 Intensive Mixer

The CO-NELE CR15 intensive mixer is engineered to meet the most demanding requirements of energetic material processing. With a 350-liter working volume, the system is ideally suited for pilot-scale and small-batch production — a critical phase in university-led propulsion research. 

Tsinghua University Adopts CO-NELE 350L CR15 Granulating Mixer for Rocket Propellant

Key technical advantages include:

Superior Mixing & Granulation: The mixer integrates 3D turbulent mixing with real-time particle size adjustment (ranging from 0.1 to 5 mm). This delivers high sphericity, uniform particle density, and consistent quality across batches — essential for predictable combustion behavior.
Process Safety: A fully enclosed dust-tight design guarantees safe handling of high-energy, sensitive powders, minimizing the risk of dust dispersion or contamination.
Operational Efficiency: Variable frequency drive control and hydraulic tilting discharge enable stable operation and residue-free cleaning, significantly enhancing workflow efficiency and material utilization.
Engineering Reliability: Combining German-engineered core technology with domestic advanced manufacturing, the CR15 intensive mixer meets the strict reliability standards demanded by the aerospace sector.
Application in Solid Rocket Propellant Production
Within Tsinghua University's research framework, the CO-NELE CR15 is deployed for mixing, binder coating, and densification granulation of composite solid rocket propellants. The system consistently delivers high pellet yield, excellent flowability, and exceptional batch-to-batch consistency. These characteristics are directly linked to improved charging uniformity and combustion stability — two critical factors in solid rocket motor performance.
About CO-NELE
With over two decades of specialized expertise in high-end mixing and granulating equipment, CO-NELE serves a diverse range of industries, including aerospace, new energy, ceramics, powder metallurgy, and chemicals. The company is committed to providing tailored powder processing solutions for high-demand clients worldwide, blending international engineering standards with responsive, client-focused innovation.
This collaboration with Tsinghua University underscores CO-NELE growing role in supporting frontline aerospace research and development, reinforcing its position as a trusted partner for mission-critical powder processing applications.

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Continuous Intensive Mixer represents a major breakthrough in mixing technology. Building on the Co-Nele Intensive mixers type CR, its revolutionary design offers unparalleled advantages: continuous processing capacity and independently adjustable mixing intensity. This meets the demanding demands for large-scale, high-quality mixing in a wide range of industries, from mining and building materials to chemicals and lithium batteries.
Continuous Intensive Mixer
Flexible CR laboratory granulating mixers for challenging tasks in R&D and small-scale production.
High-speed and high-efficiency - high-quality pelletized particle size can be obtained in a very short granulation time.
Scale-up without limits - test results can be converted to industrial scale
The applications of this CR  laboratory granulating mixers are varied.

For example: mixing, granulating, coating, kneading, dispersing, dissolving, defibrating, etc.

Granulator application industry
ceramics
Molding materials, molecular sieves, proppants, varistor materials, dental materials, ceramic tools, abrasive materials, oxide ceramics, grinding balls, ferrites, etc.

building materials
Porous media of bricks, expanded clay, perlite, etc., refractory ceramsite, clay ceramsite, shale ceramsite, ceramsite filter material, ceramsite brick, ceramsite concrete, etc.

Glass
Glass powder, carbon, leaded glass frit, waste glass slag, etc.

metallurgy
Zinc and lead ore, alumina, carborundum, iron ore, etc.

chemical
Slaked lime, dolomite, phosphate fertilizers, peat fertilizers, mineral materials, sugar beet seeds, fertilizers, phosphate fertilizers, carbon black, etc.

Environmental friendly
Cement filter dust, fly ash, sludge, dust, lead oxide, fly ash, slag, dust, etc.

Carbon black, metal powder, zirconia

CR Laboratory Granulating and Pelletizing Mixers

CO-NELE intensive mixers are designed as granulating and pelletizing mixers which produce predictable and reproducible grain sizes.

Just one machine is needed to carry out the two process steps:mixing and granulating/pelletizing.

Technical advantages of CO-NELE mixing granulator

High spheroidization rate, uniform particle size, good particle shape and strong particle density

Rotary mixing drum and granulation tool set are controlled by variable frequency, the speed can be adjusted, the particle size can be controlled by adjusting the speed, and the particle size can be adjusted online

Unloading method Tipping unloading or bottom unloading (hydraulic control), quick and clean unloading, easy to clean

A complete range of models, from small laboratory (5-10L) granulation to large industrial pelletizing, can meet the needs

It has a wide range of applications and can meet the mixing needs of different industries and various materials

Granulator application industry
ceramics
Molding materials, molecular sieves, proppants, varistor materials, dental materials, ceramic tools, abrasive materials, oxide ceramics, grinding balls, ferrites, etc.

building materials
Porous media of bricks, expanded clay, perlite, etc., refractory ceramsite, clay ceramsite, shale ceramsite, ceramsite filter material, ceramsite brick, ceramsite concrete, etc.

Glass
Glass powder, carbon, leaded glass frit, waste glass slag, etc.

metallurgy
Zinc and lead ore, alumina, carborundum, iron ore, etc.

chemical
Slaked lime, dolomite, phosphate fertilizers, peat fertilizers, mineral materials, sugar beet seeds, fertilizers, phosphate fertilizers, carbon black, etc.

Environmental friendly
Cement filter dust, fly ash, sludge, dust, lead oxide, fly ash, slag, dust, etc.

Carbon black, metal powder, zirconia

granulating and pelletizing mixers
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