Designed for laboratory trials and small-batch processing, this 5L sigma kneader combines dual sigma blades, electric heating, vacuum processing and variable-speed control in one compact machine.
Karvil Machinery brings over 20 years of sigma kneader manufacturing and export experience, with customized solutions for customers in 50+ countries and regions.
Need a kneader for your specific material? Tell us about your application and let our engineering team help you find the right configuration.
NH-5
Karvil
Configured with explosion-proof drive, heating, vacuum and electrical components as specified.
Two sigma-shaped blades provide intensive kneading action for viscous rubber compounds and other difficult-to-mix materials.
The vacuum system supports air removal during mixing, helping meet process requirements for rubber formulations that require reduced air entrapment.
An electric heating system with thermal oil supports controlled heating during the kneading process.
A handwheel-operated tilting trough allows the batch to be discharged after processing.
The machine features SS304 construction, mirror-polished internal surfaces and a polished exterior.
Every material behaves differently during kneading. Karvil Machinery can customize the machine configuration according to your process, including:
Working capacity and vessel dimensions
Blade design, speed and drive power
Electric heating or other suitable heating methods
Vacuum system and sealing arrangement
Manual tilting, screw discharge or other suitable discharge options
Materials of construction and surface finish
Electrical controls and hazardous-area requirements
Our team provides responsive technical communication, configuration support and after-sales assistance. With equipment supplied to customers in more than 50 countries and regions, we understand the importance of matching machine design to real production needs.
Watch the factory test of Karvil Machinery 5L explosion-proof vacuum sigma kneader mixer, configured for laboratory processing of toluene-containing rubber compounds.
This compact machine features dual sigma blades, variable-speed control, electric heating, vacuum processing and manual tilting discharge. The working capacity is 3.5L, with a total vessel volume of 5L.
Contact Us for Custom Requirements & Free 3D Layout
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.
Is this mixer suitable for laboratory research?
Yes. The 2L capacity is ideal for formulation development, material testing and pilot-scale production.
Can Karvil customize the machine for our application?
Can the heating temperature and blade speed be customized?
Need a compact vacuum sigma kneader for rubber, adhesives or other high-viscosity materials?
