Sigma Kneader with Extruder Discharge
KARVIL kneader
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)
850L Full Stainless Steel Sigma Kneader Machine for Adhesives & Butyl Rubber
Designed for handling highly viscous materials, our 850L Full Stainless Steel Sigma Kneader is the ultimate mixing solution for butyl rubber, adhesives, sealants, and dough-like compounds. Driven by a powerful dual-motor system and a world-class SEW reducer, this heavy-duty kneading machine ensures high torque and stable operation even under the most demanding industrial conditions. Complete with an integrated industrial chiller and an advanced PLC touch-screen control system, it offers precise temperature control and unmatched mixing efficiency.
Key Features & Advantages
Premium Material & Finish: Constructed from full SS304 Stainless Steel. The internal chamber features a mirror-polished finish to prevent material sticking, while the exterior has a premium brushed finish.
Robust Drive System: Powered by top-tier Innomotics (Siemens) Dual Motors (45kW & 30kW) and a high-torque SEW Gear Reducer, guaranteeing continuous operation without stalling.
Efficient Screw Discharge: Features a 22kW screw extruder for easy unloading of highly viscous materials, equipped with a DN250 electric ball valve for seamless transfer.
Precise Speed & Control: Independent Siemens VFD (Variable Frequency Drive) allows flexible speed adjustment (Fast: 0-46 rpm, Slow: 0-25 rpm). Controlled via an intuitive SS304 PLC Control Cabinet with both touch screen and mechanical buttons for dual reliability.
Integrated Cooling System: Comes standard with a dedicated industrial chiller (44.15 kW/hr cooling capacity) to maintain optimal material temperature and prevent thermal degradation of rubber and adhesives.
Enhanced Safety System: Hydraulic lid lifting mechanism equipped with a safety limit interlock switch—the mixing blades automatically stop when the lid is opened, ensuring 100% operator safety.
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 | ||||||||||||
Applications
Our Services
F.A.Q.
1.Manufacturer or trading company?
We are a professional manufacturer with over 20 years of experience, specializing in Sigma Mixers, Ribbon Blenders, and Planetary Mixers. Unlike trading companies, we have our own R&D team and strict quality control system, which allows us to offer direct factory prices and technical support.
2.What is the main market for your company?
Our machines have been exported to over 50 countries, including markets in Europe, America,Australia and Southeast Asia. We serve industries ranging from chemicals, energetic materials, adhesives, and sealants to food and pharmaceuticals.
3.How do you ensure the quality of the machine before delivery?
Quality is our priority. After production, we conduct a strict FAT (Factory Acceptance Test). We run the machine empty and with load (if applicable) for continuous hours to check noise, vibration, sealing, and temperature. We will send you a detailed running video. You are also welcome to visit or hire a third party (like SGS/BV) for inspection.
4.Can I track the production progress of my order?
Yes. During the production process, our sales team will update you with photos and videos of key stages (machining, welding, assembly, painting) so you can know exactly the status of your equipment.
5.How about the installation and services?
We provide comprehensive support:
Documents: Detailed English manual, electric diagram.
Online Support: Lifetime remote video guidance for installation and troubleshooting.
On-site Service: If needed, we can dispatch engineers to your factory for installation, commissioning, and staff training.
6.How do you pack the machine to ensure safety during long shipping?
We use export-standard plywood cases ensuring stability. For the machine surface, we wrap it with multiple layers of stretch film to prevent moisture and corrosion during sea transportation.
7.Can you provide customized products?
Yes, we have professional engineers to meet your special design needs, so we can provide customized products.
8. What are the payment terms and delivery time?
Production begins after confirming details and receiving a 50% deposit. It usually takes 20-30 days. Once you approve the machine via test videos or on-site inspection, we will arrange shipment immediately after the balance payment.
9.About the product warranty?
We provide 12-month warranty starting. Within the warranty period, we provide free replacement parts with DHL/Fedex . Beyond the warranty, we offer cost-price spare parts and lifetime technical support.