10L Explosion-Proof Vacuum Sigma Mixer
Product Description
Standard Design（Customizable）:
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)
Lab Scale Explosion-Proof Vacuum Sigma Mixer
Built for laboratory research and small-batch production, this 10L Vacuum Sigma Mixer is engineered to handle highly viscous and volatile materials like asphalt, adhesives, and sealants. Equipped with a Siemens Explosion-Proof Motor and a 350°C high-temperature electric heating system, it ensures a safe and efficient mixing process.
Why Choose This Sigma Mixer ?
Uncompromising Safety for Volatile Materials
Mixing materials like asphalt under high heat generates fumes. Our machine is fully Ex-proof, featuring a Siemens Innomotics explosion-proof motor, an Ex-proof vacuum pump, and a customized Ex-proof electrical control cabinet to meet strict laboratory safety standards.
Extreme High-Temperature Capability
Unlike standard water or oil-jacketed mixers, this unit utilizes a built-in 3kW electric heating system capable of reaching 350°C. It easily melts and mixes bitumen, hot-melt adhesives, and heavy polymers."Zero-Clearance" Precision Mixing
Sticky materials often build up on the walls. We engineered the Sigma (Z-type) blades with an ultra-tight 3mm clearance against the mixing chamber. Combined with mirror-polished SS304 contact parts, it ensures homogeneous kneading with minimal residue.Vacuum Degassing
Comes with an integrated vacuum system (-0.09Mpa) including a buffer tank and metal hoses to remove air bubbles during the mixing phase, ensuring a dense, flawless final product.
Please contact us and we will assist you in developing the right solution for you. there is also production sigma mixer available. Click Here.
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 ≤0.3MPa | ||||||||||
| 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 | ||||||||||||
Our Services
LABORATORY TEST In order to be able to demonstrate the advantages and modes of action of our industrial mixing machine with your products, our fully equipped modern laboratory/technical center is at your disposal. |
PROFESSIONAL ENGINEER The experienced team of engineers is specialized in the R&D and design of mixers, grinding equipment, and plastic recycling machine. Karvil explores new technical points constantly to create perfect solutions for customers. |
DIRECT FACTORY Karvil factory has a series of strict standard system to control the procurement of raw materials, manufacturing process, in-process inspection, and product inspection, so as to ensure the quality of our products. |
Applications
F.A.Q.
Is this mixer compatible with standard US laboratory power supplies?
Yes. Unlike large industrial mixers that require 3-phase power, this 10L lab scale sigma mixer is specifically custom-wired for 220V, 60Hz, Single Phase. It is designed for straightforward integration into North American testing and research labs without requiring expensive electrical facility upgrades.
Can the heating system handle high-melting-point materials like asphalt and heavy bitumens?
Absolutely. While many standard lab kneaders rely on external water or oil heating jackets, this unit features a robust, built-in 3kW electric heating system capable of reaching up to 350°C (662°F). This provides rapid melting and sustained, stable high-temperature mixing, which is critical for asphalt, hot-melt adhesives, and polymer modifications.
Materials like asphalt are extremely sticky. How difficult is it to clean the mixing chamber?
We engineered this machine with maintenance in mind. All material contact parts—including the mixing chamber, upper cover, and Sigma blades—are made of SS304 stainless steel with a high-grade mirror-polished finish. This greatly reduces material adhesion. Additionally, the manual tilting discharge design allows operators to easily access the chamber for scraping, and the PTFE (Teflon) seals are highly resistant to harsh cleaning solvents.
Why is an explosion-proof (Ex-proof) design necessary for lab mixing?
Heating volatile materials (like asphalt, solvent-based adhesives, or rubber compounds) to high temperatures often releases flammable fumes. To ensure operator and laboratory safety, this machine features a Siemens explosion-proof main motor, an Ex-proof vacuum pump, and a fully enclosed Ex-proof electrical control cabinet. This eliminates the risk of electrical sparks igniting trapped fumes during operation.
Does the vacuum system come fully equipped, or do I need to buy a separate pump?
The machine comes as a complete, ready-to-run system. It includes an integrated explosion-proof vacuum pump, a vacuum buffer tank, and flexible metal hoses. It easily achieves a vacuum degree of -0.09 Mpa, efficiently removing trapped air bubbles from highly viscous materials during the kneading process.
How is the machine packaged and shipped to the United States?
The mixer weighs approximately 300kg and measures roughly 1350 x 700 x 1100 mm. It is securely packed in a heavy-duty, export-standard wooden crate featuring 10cm pallet feet for easy forklift handling and hinged lids for safe unboxing. We can arrange delivery via LCL (Less than Container Load) sea freight or expedited air freight directly to your US facility or the nearest major port.