Kneader Twin Screw: China's Innovation In Mixing Technology

China is home to several manufacturers of twin-screw extruders and co-kneaders, including Jiangsu Xinda Tech Limited, Kecheng Plastic & Rubber Machinery Ltd (KCMACHINE), and XINDA. These companies offer a range of machinery and equipment for various industries, including plastics, cables, and food. With years of experience and a focus on technical research and development, they provide turn-key solutions and have a global reach.

XINDA twin screw extruder and co-kneader

XINDA is a leading manufacturer of compounding equipment for various industries, with a history spanning over 30 years. The company offers turn-key solutions for its customers, from the conveying of raw materials to the final product packing and storage. XINDA combines high-quality technology with a customer-oriented approach, which has helped it gain a strong foothold in over 65 countries.

XINDA's twin-screw extruder and co-kneader technology have been widely recognised and praised by many Fortune 500 companies. The company's commitment to research and development has led to significant progress in various applications, including cable compounds, masterbatch, thermoset compounds, foaming compounds, conductive and degradable compounds.

The XINDA twin-screw extruder is ideal for precise compounding of polyolefins, engineered plastics, and other continuous processes. It offers uniform shearing, high dispersion, high filling, and stretching melt capabilities, combining the advantages of both single and twin-screw extruders. The unique working principle, along with its threaded components and supporting equipment, makes it highly versatile. The machine can handle mixing, mixing, plasticising, dispersing, shearing, stretching, degassing, and granulation in a single production cycle.

The co-kneader, on the other hand, is a reciprocating single-screw compounding extruder that addresses the limitations of single and twin-screw extruders in the industry. It offers design flexibility, a short material residence time, effective mixing, efficient degassing, precise temperature control, easy maintenance, and cost-effective operation. The co-kneader's unique screw shaft design, with its reciprocating motion and mixing blocks, enhances the mixing effect both radially and axially.

XINDA's twin-screw extruder and co-kneader technology have been applied across various industries, including plastics, cables, food, and biodegradable materials. The company's collaboration with Jiangnan University further showcases its commitment to innovation and expansion into new fields, such as artificial meat and reconstituted rice.

Plastic recycling extruder

There are several types of plastic recycling extruders available, including single-screw and twin-screw extruders. Twin-screw extruders are particularly effective for recycling plastic as they offer higher throughputs, better mixing, and more flexibility in processing a wide range of materials. They are also known for their energy efficiency and low operating costs.

One example of a twin-screw plastic recycling extruder is the model offered by Jiangsu Xinda Tech Limited, a Chinese manufacturer. Their plastic recycling extruder is designed to process a range of plastic waste, including film and scraps. The machine can handle capacities ranging from 5-2000kg/h, depending on the model and diameter of the screws. Xinda also offers a range of ancillary equipment, such as crushers, shredders, and pelletizers, to complement their extruders and provide a complete plastic recycling solution.

Another Chinese manufacturer, Kecheng Plastic & Rubber Machinery Ltd (KCMACHINE), offers a range of machinery for plastic recycling, including twin-screw extruders, pelletizing machines, and granulating machines. Their machines are designed to handle a variety of plastic materials, including PVC, PP, and PE. KCMACHINE has completed projects in several countries, including Russia, Turkey, Mexico, and India, demonstrating their experience and reach in the industry.

In addition to these companies, there are numerous other Chinese manufacturers that offer plastic recycling extruders, such as Nanjing KY Chemical Machinery Co., Ltd., which boasts a wide range of equipment and solutions for plastic recycling. These companies play a crucial role in providing the technology and machinery necessary for effective plastic waste management and recycling.

Co-kneader and accessories

XINDA is a prestigious machinery enterprise that has been designing and manufacturing equipment for compounding industries for over 30 years. They offer a range of products, including the Co-Kneader, a low-shear rotating and reciprocating single-screw extruder designed for shear and temperature-sensitive compounds.

The Co-Kneader was first invented in 1945 by the Swiss company Buss AG and has since become a mature and advanced compounding technology. It differs from traditional single or twin-screw extruders due to its unique mechanisms. The spiral of the kneading screw is interrupted three times at the circumference, with stationary kneading pins fixed in the gaps inside the kneading case. As the screw rotates, the axis moves reciprocally, and the interaction between the moving flights and stationary pins provides dispersive and distributive mixing simultaneously. This process improves the effectiveness of kneading by allowing movement in both transverse and longitudinal directions, resulting in high-quality mixing.

The Co-Kneader offers several advantages over traditional extruders. It operates at lower energy input and melt temperatures, with a lower processing temperature maintained through a circular water cooling system. This results in less material disassembly and improved final product quality. The Co-Kneader also provides extremely homogeneous mixing, equal treatment of the polymer matrix, and efficient blending of liquid components. It can handle high volumetric loadings of fillers and additives without destroying delicate fillers.

The Co-Kneader's axially opened split barrel design allows for easy cleaning and fast maintenance. Replacement parts, such as screws, barrel lining, and pins, can be changed individually. XINDA also offers accessories and complementary products for the Co-Kneader, such as the SJW-200 Co-kneader compounding line, which is used to produce MV XLPE.

Twin screw extruder manufacturer

Jiangsu Xinda Tech Limited is a well-known manufacturer of twin-screw extruders in China. The company has been committed to the technical research and application of co-kneaders and twin-screw extruders for over 25 years and has made significant progress in various fields, including cable compounds, masterbatch, thermoset compounds, and conductive and degradable compounds. XINDA twin-screw extruders are used in a wide range of industries, including plastics, chemicals, food, and pharmaceuticals.

XINDA offers a variety of twin-screw extruders, including the Mini Lab Testing Twin Screw Extruder Granulator Machine, the Laboratory Twin Screw Extruder, and the Double Co-Rotating Twin Screw Extruder for Thermoset Compounds. The company also manufactures a range of accessories, such as thread blocks, barrels, and screw shafts.

Another prominent manufacturer of twin-screw extruders in China is Cowin Extrusion, located in Nanjing, China's extruders manufacturing base. Cowin Extrusion is known for its independent design and development of new technology and equipment related to polymer material processing. The company has a rich talent pool and extensive technical experience in polymer equipment manufacturing, with a focus on R&D, equipment process, manufacturing, and turnkey projects.

Other notable manufacturers of twin-screw extruders include Coperion, a German company that is a pioneer in the development of closely intermeshing, co-rotating twin-screw extruders; Leistritz, a German company that offers a range of solutions for the plastics and pharmaceutical industries; and Milacron, an American company that is the only global firm with a full-line product portfolio that includes injection moulding and extrusion equipment.

Co-kneader and compounding extruder

XINDA is a China-based company that designs and manufactures equipment for the compounding industries. The company has over 30 years of experience in the field and offers turn-key solutions for the conveying of raw materials to final product packing and storage. XINDA combines high-quality technology with a customer-oriented approach and has a presence in over 65 countries.

XINDA's Co-Kneader is a low-shear rotating and reciprocating single-screw extruder designed for shear and temperature-sensitive compounds. It is different from traditional single or twin-screw extruders due to its unique mechanisms. The spiral of the kneading screw is detached three times at the circumference, with stationary kneading pins fixed inside the kneading case. This design allows for both dispersive and distributive mixing simultaneously. The Co-Kneader also has a circular water cooling system that accurately controls the processing temperature, keeping it lower than other machines.

The XINDA twin-screw extruder, on the other hand, is ideal for precise compounding of polyolefins, engineered plastics, and other continuous processes. XINDA's twin-screw extruder and Co-Kneader are used in various industries, including cable and wire compounds, engineering plastics, thermosetting plastics, rubber and elastomer compounds, and pharma and special compounds.

In recent years, XINDA has been applying its twin-screw extruder and co-kneader in the field of food extrusion. The company is cooperating with Jiangnan University to develop special equipment and break through key technologies in food extrusion, such as artificial meat and reconstituted rice.

XINDA's commitment to research and development, customer service, and participation in industry exhibitions has made it a prominent enterprise in the compounding and extruding industries.

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