A filler-free seal kneader is a type of kneading machine used in the rubber and plastic industry that is specifically designed for compounding and mixing materials without the use of fillers. Fillers are materials such as carbon black or silica that are added to rubber and plastic compounds to improve their strength, durability, and other properties.
In a filler-free seal kneader, the mixing chamber is designed to minimize the use of fillers while still achieving the desired properties of the material being mixed. This is achieved through the use of specialized mixing blades, improved temperature control, and precise control of the mixing parameters such as time, speed, and pressure.
The use of filler-free seal kneaders offers several advantages over traditional kneading machines that use fillers. For example, filler-free compounds have improved mechanical properties, including greater tensile strength and elongation, as well as improved aging resistance. Additionally, filler-free compounds have lower density and are more cost-effective to produce.