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Banbury Kneader for Rubber & Plastic Mixing — High-Performance Industrial Kneading Solution

Nantong Kneading Mixing Machine Co., Ltd. is a professional banbury kneader company with rich manufacturing experience in industrial rubber mixing equipment. Our banbury kneader is designed for highly demanding compounding applications, ensuring excellent dispersion quality, energy efficiency, and long-term stability. The machine is widely recognized as a reliable mixing kneader solution for rubber, EVA, TPR, plastics, and chemical material preparation.

The banbury kneader combines strong mechanical shearing with accurate temperature control, allowing raw materials to reach optimum viscosity and consistency. As a trusted supplier, we focus on providing users with advanced equipment to boost productivity while meeting strict environmental and safety requirements.

The machine is suitable for EVA, various foam rubber sole,TPR, rubber role ,sponge, tires, sportsball rubber rings, oil seal,shock-proof tape, master batch , ink, various types of automotive rubber products,chemical mixed raw materials.

The machine contains auto temperature control system that easy to operate. The mixing can achieve the bestdispersion and uniformity effect, closed type mixing .The machine provides an excellent quality of mixture whileavoiding environmental pollution,the machine is durable,low failure rate.

Banbury Kneader Technical Specifications

Type	Volume/L	Main Motor Power/kw	Tilt motor power/kw	Feeding way	Air pressure/Mpa	Tilting angle	Bottom discharging
ML-3L	3	4	0.18	Front	0.7	110
ML-12L	12	15	0.75	Front	0.7	110
ML-20L	20	22-30	1.5	Front	0.7	110
ML-35L	35	37-55	2.2	Front	0.7	110
ML-55A	55	55-110	4	Front	0.8	110	Bottom discharging
ML-55B	55	55-110	4	Back	0.8	110	Bottom discharging
ML-75A	75	90-160	4	Front	0.8	145	Bottom discharging
ML-75B	75	90-160	4	Back	1.0	110	Bottom discharging
ML-110A	110	110-220	5.5	Front	1.0	145	Bottom discharging
ML-110B	110	110-220	5.5	Back	1.0	110	Bottom discharging
ML-150L	150	160-250	7.5	Back	1.0	145	Bottom discharging
ML-300L	300	220-315	11	Back	1.0	145	Bottom discharging

Why Manufacturers Choose Our Rubber Dispersion Kneader

Whether customers need a rubber dispersion kneader for complex elastomer formulations or high-uniformity mixing of fillers and pigments, our solutions help enhance:

• Dispersion effect for carbon black, silica, pigments, flame retardants, etc.

• Batch uniformity that improves downstream molding and extrusion processes

• Process efficiency with reduced manual intervention and higher yield

• Dust-free production to reduce environmental impact

The enclosed design of the banbury kneader maintains internal pressure and prevents material leakage, supporting cleaner factories and safer working conditions.

Mixing Kneader Designed for High-Viscosity Polymers

Our plastic kneader models are compatible with both thermoplastic and thermosetting materials, including TPR, TPU, PVC-based compounds, and various industrial engineered plastics. With optimized rotor geometry and strong shear force, the system ensures:

• Enhanced polymer chain activation

• Faster material plasticization

• Precise temperature control for sensitive materials

Choosing the Right Model from a Trusted Banbury Kneader Company

Selecting the correct machine capacity is crucial for optimizing your return on investment. As an experienced banbury kneader company, Nantong Kneading offers a comprehensive range of models from laboratory-scale units to mass-production giants.

• Lab & Pilot Production (ML-3L to ML-20L): Ideal for testing new formulas, small batch color matching, or producing boutique rubber items. These units offer the same high shear performance as larger models.

• Medium Scale Production (ML-35L to ML-75B): These are the workhorses for many factories producing shoe soles, foam rubber, and technical molded parts. The option for front or back feeding provides flexibility in factory layout.

• Large Scale Manufacturing (ML-110A to ML-300L): Designed for high-volume tire manufacturing and extensive masterbatch production. With powerful motors up to 315kw, these machines deliver maximum throughput.

Advanced Engineering in Every Mixing Kneader

Durability is at the core of our design philosophy. We understand that a mixing kneader faces immense stress during operation. Therefore, our rotors and mixing chambers are treated with wear-resistant alloys to extend service life. The tilting mechanism (ranging from 110° to 145°) ensures complete discharge of the compound, minimizing waste and making cleaning easier between batches.

If you are looking for a reliable rubber dispersion kneader or a heavy-duty plastic kneader, Nantong Kneading Mixing Machine Co., Ltd. is here to support your business. Our commitment to low failure rates and high-quality output makes us the preferred partner for manufacturers worldwide. Contact us today to discuss which model suits your production needs best.

Advanced Working Principle of Our Rubber Dispersion Kneader

The core advantage of our equipment lies in its ability to function as a high-performance rubber dispersion kneader. Unlike traditional open mills that require manual intervention and multiple passes, our pressurized mixing chamber utilizes a pneumatic ram to apply constant pressure on the raw materials. This design forces the rubber, fillers (such as carbon black), and additives into the mixing zone of the rotors.

The interaction between the rotor blades and the chamber wall creates high shear forces and strong turbulence. This ensures that even the most difficult-to-disperse particles are broken down and distributed evenly throughout the matrix. For manufacturers of tires and oil seals, this means consistent physical properties in every batch. By choosing our rubber dispersion kneader, you significantly reduce the mixing cycle time, typically achieving a homogenous compound in just a few minutes compared to much longer periods on open mills.

Precision Control: The Ultimate Plastic Kneader

While rubber is a primary application, our machine is equally proficient as a plastic kneader. Processing thermoplastics like EVA, TPR, and masterbatches requires precise temperature management to prevent degradation or scorching. As highlighted in the machine specifications, our equipment features an automatic temperature control system.

The mixing chamber, rotors, and pressure lid are designed with jacketed channels that allow for the circulation of steam, oil, or water. This enables:

• Rapid Heating: Essential for plasticizing materials quickly at the start of the cycle.

• Effective Cooling: Critical for controlling heat buildup caused by friction during high-speed mixing.

• Consistent Viscosity: By maintaining stable temperatures, our plastic kneader ensures that the melt viscosity remains constant, leading to uniform pelletizing or molding in downstream processes.

Robust Construction of the Mixing Kneader

Durability is a non-negotiable factor for heavy industry. As a premier mixing kneader manufacturer, Nantong Kneading ensures that every component is built to withstand rigorous daily operation. The mixing chamber is constructed from high-quality steel plates, and the inner surfaces—including the rotors—are treated with hard chrome plating. This treatment provides exceptional resistance to abrasion and corrosion, which is vital when processing abrasive materials like chemical mixed raw materials or compounds with high filler content.

Furthermore, our mixing kneader employs a reliable leakage-proof sealing system. The rotor shaft ends utilize a dry mechanical seal or hydraulic seal structure (depending on the model) to prevent powder leakage. This not only keeps the workshop clean, adhering to environmental standards, but also prevents the loss of expensive raw materials.

Why Partner with a Professional Banbury Kneader Company?

Choosing the right equipment is about more than just specifications; it is about trusting the manufacturer. As a long-standing banbury kneader company, we offer comprehensive support that extends beyond the sale. Our ML series (ranging from 3L to 300L) allows us to scale with your business growth—from laboratory testing to large-scale industrial production.

We understand that different formulations require different rotor geometries. Whether you need tangential rotors for faster discharge or intermeshing rotors for heat-sensitive compounds, our engineering team can guide you to the perfect configuration. Our commitment to being a top-tier banbury kneader company means we also prioritize safety. All machines are equipped with emergency stop buttons and safety interlocks to protect your operators during maintenance and operation.

Economic Benefits of the Banbury Kneader

investing in a banbury kneader from Nantong Kneading yields immediate economic returns. The "closed type mixing" mentioned earlier significantly reduces dust pollution, which lowers the cost of air filtration systems and improves worker health. Additionally, the high motor power (up to 315kw for the ML-300L) is optimized for energy efficiency. By completing the mixing process faster than conventional methods, the energy cost per kilogram of finished compound is drastically reduced.

Whether you are producing sponge foam, automotive rubber products, or complex chemical raw materials, our machine ensures you stay competitive in the market. Contact us today to learn more about how our rubber dispersion kneader and plastic kneader solutions can revolutionize your production line.

Industry Applications of Our Banbury Kneader

Our machinery is trusted by clients across various sectors. Here is how our banbury kneader drives success in specific industries:

1. Automotive Rubber Parts Manufacturing 

In the automotive industry, component failure is not an option. Manufacturers use our rubber dispersion kneader to produce critical parts such as engine mounts, oil seals, and wiper blades. The machine's ability to perfectly disperse carbon black and vulcanizing agents ensures that the final rubber products exhibit superior tensile strength and heat resistance, meeting strict automotive safety standards.

2. Footwear and Sole Production

For the shoe industry, especially regarding EVA and foam rubber soles, color consistency and weight uniformity are key. Acting as a specialized plastic kneader, our machine mixes the blowing agents and pigments uniformly into the EVA matrix. This results in shoe soles that have uniform cell structure (bubble size), bright colors without streaks, and excellent elasticity.

3. Wire and Cable Industry

Insulation materials require a high degree of purity and electrical resistance. Our mixing kneader is widely used to compound EPDM and other insulating rubbers. The closed mixing environment prevents external contaminants like dust or moisture from entering the mix, ensuring the dielectric properties of the final cable product are uncompromised.

FAQ: Questions About Our Mixing Technology

To help you make an informed decision, we have answered some frequently asked questions about our equipment and services as a professional banbury kneader company.

Q1: How does a dispersion kneader compare to an open mixing mill?

A: A dispersion kneader is significantly more efficient. It operates in a closed chamber under pressure, which reduces mixing time by up to 50% compared to an open mill. Additionally, it minimizes dust pollution and labor intensity. While an open mill is good for sheeting, the rubber dispersion kneader is superior for the initial compounding and dispersion phase.

Q2: Can this machine handle high-hardness rubber compounds?

A: Yes. Our mixing kneader is designed with powerful motors (up to 315kw for the ML-300L) and robust gearboxes capable of handling high-viscosity and high-hardness materials. The rotor geometry creates high shear force to process tough materials effectively.

Q3: Is the machine difficult to maintain?

A: Not at all. We design our machines for low maintenance. Key components like the dust sealing ring are designed for easy access and replacement. We also provide a detailed maintenance guide. Regular lubrication and checking the cooling system are the primary tasks to ensure the longevity of your banbury kneader.

Q4: Do you offer customization for specific materials?

A: Yes, as a dedicated banbury kneader company, we can customize the rotor type (tangential or intermeshing) and the surface treatment of the chamber based on your specific material, whether it is abrasive ceramics, sticky plastics, or standard rubber.