Heated Sigma Kneader with Screw 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)

Karvil 500L Heated Sigma Kneader: Power, Precision, and Performance

When you're dealing with challenging, high-viscosity materials that need thorough mixing and consistent heating, you need equipment you can truly rely on. Our Karvil 500L Heated Sigma Kneader is precisely that – a workhorse designed for industries where quality and efficiency can't be compromised.

Crafted with European users in mind, this kneader combines advanced engineering with user-friendly features, ensuring top-tier performance whether you're working with sticky pastes, thick doughs, chemicals, or specialized compounds.

Why Choose the Karvil 500L Heated Sigma Kneader?

Robust & Reliable Power: Driven by a powerful 30 kW-4 Siemens Innomotics motor, this kneader delivers consistent torque and performance, even with the toughest materials. You're getting world-class power for reliable operation, day in and day out.

Superior Mixing with Mirror-Polished SS316 Blades: The heart of our kneader lies in its Sigma-type blades. We don't cut corners here – the core is solid carbon steel for strength, precisely welded with an 8mm thick layer of premium SS316 stainless steel. What truly sets them apart is the mirror-polished surface, which not only ensures unparalleled hygiene and easy cleaning but also minimizes material adhesion. This means less downtime and a purer product.

Safe & Smart Operation: We prioritize safety. The kneader is equipped with a safety limit switch that automatically stops operation if the top cover is opened. This crucial feature protects your team and prevents accidents.
Hygienic Screw Extrusion Discharge: Emptying the kneader is clean and efficient, thanks to the screw extrusion discharge method. This ensures minimal residue and is complemented by a DN125 manual ball valve for precise control over material flow.

Durable & Easy-Maintenance Shaft Seals: Our combined packing seal box design, featuring PTFE packing and PTFE seals, makes shaft seal replacement straightforward and extends service life, reducing maintenance headaches.
Premium Electricals in a Stainless Steel Cabinet: The entire electrical control cabinet is made from SS304 stainless steel, housing reliable Schneider electric components. This ensures longevity, corrosion resistance, and consistent electrical performance in demanding industrial environments.

See it in Action: Karvil Heated Sigma Kneader Test Video

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
Heating Methods	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
Discharging Method		Screw extrusion

Applications

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.

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.