NH-5
Karvil
Methyl cellulose powder tends to absorb water quickly and form lumps if the mixing force is insufficient.
Dry powder clusters
Uneven hydration
Long mixing time
Karvil Machinery Sigma Kneader uses two sigma blades to create:
Folding action
Compression force
Shearing effect
Ensuring gradual and uniform powder dispersion.
In silica-cellulose systems, temperature rise tends to occur due to:
Shear
Prolonged operation
High viscous resistance
Why Cooling System Is Important?
The integrated cooling system helps maintain stable processing temperature during kneading.
Prevent material degradation
Improve batch consistency
Reduce viscosity fluctuation
Improve final product quality
The built-in vacuum system removes trapped air during mixing, improving product density and consistency while reducing bubbles.
Mirror-polished sigma blades generate powerful kneading action, ensuring efficient dispersion of silica and cellulose powders.
Instead of manual unloading, the integrated screw extruder continuously pushes material out of the mixing chamber, reducing residue and improving productivity.
The mixing chamber includes a cooling jacket connected to a 2HP water chiller, helping maintain stable process temperatures throughout mixing.
Watch the factory test of Karvil Machinery's 5L Vacuum Sigma Mixer, specially built for a customer in Norway.
This laboratory kneader is designed for mixing silica, methyl cellulose powder and water.
Type | NH-5 | NH-10 | NH-100 | NH-300 | NH-500 | NH-1000 | NH-1500 | NH-2000 | NH-3000 | NH-4000 | NH-5000 | |
Total Volume (L) | 5 | 10 | 100 | 300 | 500 | 1000 | 1500 | 2000 | 3000 | 4000 | 5000 | |
Mixed amount/batch (L) | 1.5-3.5 | 3.0-7 | 30-70 | 90-210 | 150-350 | 300-700 | 450-1050 | 600-1400 | 900-2100 | 1200-2800 | 1500-3500 | |
Rotation Speed (rpm) | 42/34 | 42/34 | 37/21 | 37/22 | 37/23 | 37/26 | 37/22 | 30/21 | 30/21 | 30/20 | 28/18 | |
Main Motor Power (Kw) | 0.75-1.5 | 1.1-3 | 5.5-11 | 7.5-30 | 15-37 | 22-90 | 22-90 | 30-110 | 30-110 | 45-110 | 55-132 | |
Heating Methods | Steam Pressure (MPa) | Jacket for steam | ||||||||||
Electric Power (Kw) | 2.4 | 2.4 | 6 | 12 | 18 | 30 | 45 | 54 | 72 | 72 | 90 | |
Vacuum (MPa) | 0~ -0.096Mpa (Vacuum Kneader) | |||||||||||
Discharging Method | Tilting cylinder | |||||||||||
Screw extrusion | ||||||||||||
Trusted by Global Manufacturers in 50+ Countries. From silicone to adhesives, see how our Sigma Kneaders are solving complex mixing challenges for industry leaders worldwide.
Our modern, fully equipped technical center is at your disposal. We welcome you to test your products to experience the advantages of our industrial mixers firsthand.
Specializing in mixers, grinding, and recycling machines, Karvil's experienced engineering team constantly explores new technologies to create perfect solutions for you.
Why choose a sigma kneader instead of a normal mixer?
Sigma kneader is designed for high viscosity materials that cannot be processed effectively by conventional agitators.
Can this machine mix powder with liquid?
Why is screw discharge better for sticky materials?
Is vacuum necessary for methyl cellulose mixing?
Can this machine be customized?
