3000L Explosion-Proof Sigma Mixer
Product Description
Key Features
Explosion-Proof Configuration
The machine features explosion-proof motors, heating elements and electrical components, with an ATEX-rated control cabinet for safe operation.
Heavy-Duty Dual Drive
Two 75 kW explosion-proof motors independently drive the heavy-duty sigma blades for reliable mixing of highly viscous PIB materials.
Screw Extrusion Discharge
A 45 kW explosion-proof screw drive provides controlled extrusion discharge, with variable speed and reversible rotation for efficient material removal.
High-Temperature Heating
The mixing chamber, blades and screw barrel use thermal oil circulation with 72 kW electric heating for stable and uniform temperature control.
Hygienic SS304L Construction
All product-contact parts are made from polished SS304L stainless steel, with Ra < 0.8 μm for a smooth and durable mixing surface.
PLC & Recipe Management
The Siemens PLC and touchscreen provide speed, temperature, heating, discharge and weighing control, with recipe management and data recording.
Factory Testing: 3000L Explosion-Proof Sigma Kneader
UK Customer Project
Material: High Molecular Weight PIB + Additives
Total Volume: 3000L
Working Volume: 2100L
Main Drive: 2 × 75kW Siemens Explosion-proof Motor
Screw Discharge: 45kW Siemens Explosion-proof Motor
Heating: 72kW Thermal Oil Heating
Control: Siemens PLC + Touch Screen
01. Loading
Raw materials are loaded into the mixing chamber according to the required formulation.
02. Kneading
The two sigma blades rotate and continuously fold, compress and shear the material.
03. Heating / Cooling
Thermal oil can circulate through the jacket and, where required, through the blades to control material temperature.
04. Discharge
After mixing, the processed material is discharged through the selected discharge system, such as tilting or screw extrusion.
Optional Features
Material: SUS 304, 316 or mild steel
Discharging: Tilting discharging/Screw extruding discharging/Bottom plate
Heating: Electric heating/Water heating/Oil heating/Steam heating
Cooling: Water cooling/Jacket cooling
Vacuum: Water-ring vacuum pump/ buffer tank.
Motor: Explosion proof motor
Independent Control Panel: Variable speed/ Temperature/Discharging
Working Volume: 5 to10,000 Cubic Feet (from experiment to production)
Technical Parameters
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 | ||||||||||||
Applications
Projects
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.
Mastering High-Viscosity Silicone Mixing: Why a Vacuum Kneader with a Screw Extruder is the Ultimate Solution
Successful FAT of a 3000L Sigma Mixer for Our UK Client
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Support
From material testing to customized equipment, Karvil Machinery provides the expertise you need for a reliable mixing solution.
LABORATORY TEST
Test your materials in our laboratory to find the right mixing solution.
PROFESSIONAL ENGINEERS
Experienced engineers provide expert mixing and process solutions.
DIRECT FACTORY
Strict quality control from raw materials to final inspection.
CUSTOMIZED SOLUTIONS
Mixer design and configuration tailored to your process.
FAQ
What materials can this 3000L sigma kneader process?
This machine is designed for highly viscous materials, including high molecular weight PIB and additives. Sigma kneaders can also be configured for polymers, rubber compounds, adhesives, sealants and other demanding materials.
Why does this machine use two 75kW motors?
How is the material discharged?
Can the screw discharge system handle very high-viscosity materials?
How do I select the right sigma mixer?