Views: 9 Author: Site Editor Publish Time: 2025-09-06 Origin: Site
If you’ve ever worked with sticky, heavy, or High viscosity materials, you probably know that a regular mixer just can’t handle it. That’s where the sigma mixer (also called a z blade mixer or kneader mixer) comes in. It’s a tough machine designed for jobs that need real power and consistency.
Picture a tank shaped like a “W” with two big sigma-shaped blades moving toward each other. Instead of just spinning, these blades knead, fold, and press the material again and again. That’s why it’s perfect for pastes, rubber, adhesives, and anything too thick for a standard mixer.
Depending on the job, a sigma mixer can also come with:
Vacuum system – pulls out bubbles and makes the mixture more solid and uniform.
Heating jacket – handy when you need to warm up rubber, resins, or other heat-sensitive materials.
Cooling jacket – keeps the product from overheating during long mixing cycles.
You’ll find sigma mixers in a lot of industries. Some common examples are:
Silicone rubber – mixing polymers with fillers and pigments.
Adhesives and sealants – making sure the texture is smooth and consistent.
Ceramic pastes and powder mixes – turning dry powders into workable dough.
Pharmaceutical compounds – preparing high-viscosity ingredients under clean conditions.
Battery materials – blending electrode pastes that require precision.
The short answer: they’re built for tough jobs.
They handle high-viscosity materials with ease.
They can be customized with heating, cooling, vacuum, or hydraulic discharge.
They’re durable and reliable, so you can count on them for years of service.
At Karvil Machinery, we’ve been building sigma mixers for more than 20 years. Our machines are running in factories across 50+ countries, used in industries from chemicals to food to energy. Whether you need a small lab mixer for testing or a big production unit, we can design the right solution for your material.
info@karvil.com
