Thermal grease typically consists of silicone oil, thermally conductive fillers (alumina, boron nitride, zinc oxide, etc.), and functional additives. It is characterized by high viscosity, a large proportion of powder, and a tendency to agglomerate. Traditional mixing equipment struggles to achieve uniform dispersion, while thermal grease vertical kneader, with its strong shearing and high-torque mixing capabilities, can effectively improve the uniformity and stability of thermal grease.
Thermal grease (TIM thermal interface material), as a paste-like fluid that efficiently eliminates air thermal resistance, is ushering in a new golden age of growth, driven by the following three high-barrier-to-entry sectors:
Thermal grease vertical kneader is currently the ultimate solution for producing high-end, ultra-high viscosity thermally conductive interface materials.
Thermal grease vertical kneader is a vertical type of kneader equipped with two spiral kneading blades. One set of blades rotates planetarily around the other, and the two sets of blades continuously adhere and peel together. Highly viscous materials are subjected to intense shearing, compressing, and frictional forces within the kneading space, resulting in thorough and uniform kneading in a very short time.
Vertical kneader is primarily used for the powerful kneading of high-viscosity materials (such as thermally conductive silicone grease, dental resin, propellants, carbon fiber composites, etc.) without contamination, and can completely replace horizontal kneaders and other types of mixing equipment.
| Operating modes | Planetary, no dead angle |
| Viscosity range | 800,000CP ~20,000,000CP |
| Temperature range | 0~220℃ |
| Vacuum range | 0~-0.098MPa |
| Common models | Experimental / Pilot-scale / Production model |
**Designed according to actual needs.
1. 100% Zero metal contamination: Drive shaft seal completely above the material
The most revolutionary design of the thermal grease vertical kneader is that the main shaft seal and bearings are completely suspended above the kneading vessel. There are no mechanical shaft seals or rotating contact surfaces on the bottom or sides of the vessel. The material will never come into contact with the seals during the kneading process.
2. Multi-dimensional powerful kneading + vacuum degassing: Thoroughly eliminates microbubbles
The impeller maintains an extremely precise gap (2~3mm) with the vessel wall, kneading the high-viscosity silicone oil and a large amount of inorganic powder with extremely high density, like kneading dough, completely eliminating powder clumping. Combined with the system's built-in -0.098MPa deep high vacuum system, air bubbles are crushed and completely removed during the kneading process, ensuring that the finished silicone grease is dense, has good leveling properties, and perfectly achieves its thermal conductivity.
3. Modular independent submersible: One main unit can be equipped with multiple submersibles, significantly increasing production capacity
After kneading is complete, the material bucket can be pushed away directly or transported via a track, seamlessly connecting to the downstream hydraulic press and precision filling machine. At this point, the main unit can immediately switch to a second material bucket with prepared raw materials to continue kneading. The main unit operates without interruption, achieving uninterrupted production through multi-reactor cycles, resulting in exponential growth in production capacity.
4. Special tungsten carbide ultra-hard wear-resistant coating: Extends equipment life by more than 3 times
To address the inherent high abrasiveness of thermally conductive powders, we apply special tungsten carbide (WC) thermal spraying (hardness up to HRC 65+) or ceramic surface treatment to the impellers and inner walls of thermal grease vertical kneader. To ensure the long-term preservation of asset value.
If you are interested in thermal grease vertical kneader, feel free to contact us: +86-181 3837 3963 (Whatsapp, Wechat), sigmamixer@outlook.com.
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