Vacuum Screw Discharge Kneader Mixer with Chiller

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

Vacuum Screw Discharge Kneader with Cooling SystemIndependent Control Panel: Variable speed/ Temperature/Discharging

Working Volume: 5 to10,000 Cubic Feet (from experiment to production)

Vacuum Screw Discharge Kneader with Cooling System

This 100L Vacuum Screw Discharge Kneader is specifically engineered for the high-viscosity mixing and kneading of Epoxy Resin and Additives. Featuring a heavy-duty Double Sigma (Z-blade) design and a precise screw discharge system, this machine ensures uniform mixing and efficient material output.
The unit comes fully equipped with a 5mm Cooling Jacket and an included Industrial Water Chiller, ensuring optimal temperature control during the mixing of heat-sensitive chemical materials.

Key Features & Advantages

Specialized for Epoxy: The strong shearing force of the Sigma blades breaks down agglomerates, while the cooling system prevents resin overheating/curing during processing.
Screw Discharge: Integrated screw extruder makes discharging sticky epoxy materials effortless, eliminating manual scraping and reducing residual waste.
Vacuum Ready: The mixing chamber is vacuum-sealed (ports and valves included) to remove air bubbles from the resin (Note: Vacuum pump is not included in this package).
High-Quality Components: Equipped with a Beide (Siemens Sub-brand) main motor and NSK Bearings for long-lasting durability.
Hygiene & Safety: All wetted parts are SS304 with Mirror Polishing. Includes safety limit switches to stop the mixer immediately if the lid is opened.

Detailed Configuration

A. Mixing Chamber & Lid

Construction: SS304 Stainless Steel.

Top Lid: Equipped with:

1 x Vacuum Gauge.

1 x Vacuum Port (with valve).

1 x Vent/Exhaust Port (with valve).

2 x Sight Glasses (One equipped with an inspection light for clear visibility).

Safety: Safety limit switch installed. The agitator automatically stops when the lid is opened.

B. Discharge System

Type: Screw Extruder.

Function: During mixing, the screw acts as a third mixing point. During discharge, the screw reverses to extrude the material through the nozzle. Ideal for sticky epoxy.

Temperature Control System

Jacket: 5mm thick jacket surrounding the mixing trough.

Chiller: Included. An independent industrial water chiller is provided to connect to the jacket for active cooling.

D. Sealing Assembly

Type: Combination Packing Seal Box.

Material: PTFE (Polytetrafluoroethylene) packing and seals.

Maintenance: Designed for easy access to tighten or replace packing without dismantling the shaft.

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.

Q1: What materials is this sigma mixer suitable for?

A: It is ideal for high-viscosity and solvent-based mixtures such as rubber compounds, adhesives, elastomers, sealants, and chemical pastes.

Q2: What is the advantage of screw discharge in a sigma kneader?

A: Screw extrusion allows for faster, cleaner discharge with minimal residue, especially for sticky or viscous materials.

Q3: Can the temperature and speed be adjusted during mixing?

A: Yes, both mixing and screw speeds are frequency controlled. The temperature can be regulated via the steam jacket system.

Q4: How is cleaning and maintenance handled?

A: The hydraulic lifting cover, large manhole, and mirror-polished interior make cleaning and maintenance convenient and efficient.

Q5: Is this machine customizable?

A: Absolutely. We offer customization based on your material properties, processing volume, discharge requirements, and more.