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Downward extrusion kneader

A kneader is a specialized mixing and stirring device, most commonly equipped with two Σ-shaped impellers arranged in a side-by-side, tangential, differential-speed configuration—one impeller rotates faster than the other. This design generates shear forces; the differing rotational speeds enable rapid shearing of the material being processed, ensuring thorough and uniform blending.Used for stirring, mixing, and degassing high-viscosity materials such as silicone, sealants, battery slurries, resins, inks, and cosmetic pastes.

Category：

Kneading machine

Service hotline：

+86-17099870000

Service hotline：

+86-17199870000

Service E-mail：

chenlin@duolimachinery.com

Make a phone call

Product Description

1. Precision manufacturing, ensuring stable and durable quality.

• The equipment is designed and manufactured in strict accordance with industry standards for the chemical, rubber, coating, food, and other sectors, featuring a robust structure and stable operation.

• The body and mixing paddle are crafted from high-quality steel/stainless steel, offering excellent wear resistance, corrosion resistance, and superior strength for a longer service life.

• Precise welding and machining processes ensure excellent sealing, prevent material leakage, and maintain structural integrity, making it ideal for long-term operation with high-viscosity materials.

• Each unit undergoes a series of rigorous tests—no-load, load, sealing, and transmission—before leaving the factory, ensuring reliable quality.

II. Excellent value for money, with truly competitive pricing.

• Mature production processes and large-scale manufacturing enable effective cost control without compromising quality.

• With the same configuration, materials, and specifications, our pricing is more competitive, helping businesses reduce upfront costs.

• The equipment operates reliably, with a low failure rate and simple maintenance, resulting in lower total cost of ownership over the long term.

• Supports on-demand customization, allowing flexible configuration based on production volume and material characteristics—so you avoid unnecessary expenses.

3. Excellent mixing performance and high production efficiency.

• Featuring a specialized impeller design, it ensures thorough kneading, dispersion, and uniform mixing of materials, delivering excellent discharge performance.

• The drive system delivers smooth, robust performance, with high torque, low noise, and stable operation, meeting the demands of processing high-viscosity materials.

• Can be equipped with heating, cooling, vacuum, pressurization, and other functions, making it suitable for a wide range of manufacturing processes.

• Simple operation and easy maintenance significantly boost production efficiency while reducing labor costs and downtime.

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
	Steam Pressure (MPa)	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
Discharging Method		Screw extrusion

Product Application

Rubber

Playdough

Space sand

Graphite slurry

Hot-melt adhesive

Chewing gum

Silicone

Glass glue

Capacity matching

We can precisely customize equipment specifications according to differences in customers’ annual processing capacities, covering various capacity levels from 1,000 tons to 10,000 tons. For small- and medium-sized customers with annual processing capacities ranging from 1,000 to 3,000 tons, we adopt a modular and compact design. By upgrading the core power system, increasing the volume of the grinding chamber/reactor, and equipping it with automated feeding and discharging systems, we enable continuous, high-efficiency production to meet the demands of large-scale mass production.

Medium characteristics

Tailored solutions designed to address differences in medium characteristics enable multi-dimensional adaptation. For high-viscosity materials (such as hot melt adhesives and silicone rubber), an innovative “Z”-shaped double-paddle plus variable-diameter agitator design is employed, paired with a frequency-conversion speed-regulating drive system. By precisely controlling the agitation speed and paddle angle, this approach effectively resolves issues such as uneven mixing and material sticking to vessel walls in high-viscosity substances.

Process requirements

Customized solutions can flexibly match various production models. For continuous production needs, customized equipment can integrate intelligent feeding and metering, online inspection, automatic discharging, and other modules, enabling full-process automation—from raw material input to finished product output. The dimensions, pressure ratings, and drive methods of the customized equipment can be tailored to ensure that “one machine is perfectly suited for one particular plant.”