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The new co-directional parallel twin-screw extrusion granulation production line successfully completed the whole machine assembly and entered the joint debugging stage before leaving the factory. This set of equipment will provide high-performance plastic mixing and granulation integrated solutions for customers in modified plastics, biodegradable materials, functional masterbatch and other industries.
This off-line twin-screw extrusion production line adopts a mature building block screw combination structure. The main engine is equipped with a high-power drive system and a high-precision transmission unit, and with a multi-channel weight loss metering feeding system, it can realize stable and accurate feeding of main materials, powder additives, glass fiber and other materials. The cylinder of the equipment adopts zoned independent temperature control design, supports multi-stage vacuum devolatilization configuration, can efficiently complete the processes of material transportation, melting, shear dispersion, exhaust purification, etc., and is suitable for complex formula modification process. The whole production line is equipped with water-cooled drawing, air-drying and pelletizing units, which constitutes a complete continuous pelletizing process.
This series of models has outstanding compatibility and can be widely used in glass fiber reinforced engineering plastics, flame retardant modified plastics, high filling masterbatch, PLA/PBAT biodegradable materials, plastic alloys, recycled plastics modified granulation and other fields. According to different material characteristics, screw elements and process sections can be flexibly adjusted, taking into account the requirements of high shear dispersion and low shear processing of heat-sensitive materials, which has significant advantages in production stability, energy consumption control and finished particle quality.
In recent years, the new material industry has developed rapidly, and the market has put forward higher requirements for the process adaptability and automation level of modified equipment. Kolke continued to deepen the R&D and manufacturing of twin-screw extrusion equipment, continuously optimized the main engine structure, control system and supporting auxiliary machine schemes, and continuously upgraded the equipment performance according to the iterative needs of downstream industry formula.
In the next step, after all the factory tests are completed, this set of equipment will be sent to the customer’s site for production. Kolke will also continue to rely on its own technology accumulation to provide customized extrusion equipment and complete sets of process technical support for new material enterprises at home and abroad, and help the high-quality development of new plastic material industry.

Automation and integration of the whole process to create a dust-free and efficient modification production plan
This complete set of off-line equipment consists of three core units: automatic unpacking and loading system for ton bags, multi-component weight loss metering and batching platform, and co-directional twin-screw extrusion host. The whole production line is equipped with an integrated PLC centralized control system, which realizes unattended operation in the whole process from raw materials entering the factory to plasticizing extrusion. The left side of the equipment is equipped with a lifting electric hoist ton bag unpacking mechanism, which can directly hoist whole tons of raw materials to complete sealed automatic bag breaking. With negative pressure dust removal pipeline, it completely solves the dust overflow problem of traditional manual feeding and meets the environmental protection production verification standard; The middle layer is equipped with a multi-warehouse weight loss measuring system, and the multi-component raw materials are independently and accurately weighed, and the ratio accuracy is controlled within ±0.3%, effectively avoiding the color difference and performance fluctuation of finished products caused by manual batching, and ensuring the batch stability of masterbatch products.
The core main engine of the production line adopts high-torque co-directional twin-screw extrusion structure, equipped with high-power special drive motor and heavy-duty deceleration system, which is suitable for processing various difficult materials such as calcium carbonate high-filling masterbatch, low-smoke halogen-free cable material, engineering plastic modification, color masterbatch, etc. The stable production capacity of a single production line can reach 600-800kg/h. The building block screw element supports customized length-to-diameter ratio on demand, and with multi-stage vacuum exhaust device, it can fully remove small volatile molecules inside materials and improve the quality of finished plastic particles.
One-stop whole-line customization helps rubber and plastic enterprises reduce costs and increase efficiency
This production line is a one-stop overall delivery scheme. The main engine, batching auxiliary machine and conveying dust removal equipment are all independently developed and produced by the enterprise. The electronic control system of the whole set of equipment is unified and linked to debug, which solves the pain points of equipment adaptation failure and cumbersome after-sales docking of many manufacturers in the industry. Dramatically cut corporate labor costs; The closed negative pressure conveying structure reduces the loss of raw materials, and the high-precision weight-loss batching reduces the waste of raw materials, helping rubber and plastic manufacturers to reduce the comprehensive production cost from the multiple dimensions of manpower, raw materials and energy consumption.
PROSPECT OF INDUSTRY
At present, the demand for environmental protection control and automation upgrading in the rubber and plastic modification industry continues to increase, and the fully automatic sealed integrated granulation production line has become the mainstream trend of equipment upgrading in the industry. Kolke will continue to deepen the research and development of twin-screw extrusion equipment, iterate the supporting technologies of weight-loss batching and automatic feeding, and launch more customized complete sets of extrusion production lines suitable for different production capacities and materials, so as to help the intelligent transformation of rubber and plastic manufacturing industry.

Craftsmanship and precision, the whole machine structure achieves performance upgrade
This off-line equipment adopts an integrated thickened steel structure base, with a high-power frequency conversion main drive system. The high-torque reduction transmission box can carry high-strength processing conditions such as glass fiber reinforcement and high filling powder, with smooth operation and higher load-bearing upper limit. The upper part of the unit is equipped with an independent frequency conversion forced feeding unit, and the special mixing bin is equipped with an independent driving motor to realize accurate and quantitative feeding for hard-to-transport materials such as crushed materials, powders and long glass fibers. The main engine and the feeding system are linked to regulate the speed, effectively avoiding the problems of overflowing and breaking materials, and ensuring the stability of formula ratio. The core mixing section adopts building block wear-resistant alloy barrel and co-meshing twin screw structure, and the modular screw elements can be freely combined according to different processes, and multi-stage temperature control and multi-stage vacuum devolatilization structure are integrated to quickly remove moisture and small molecule volatiles in materials, thus greatly improving the purity and mechanical properties of finished plastic particles; The screw self-cleaning structure design shortens the cleaning time of material change and color change, and adapts to the demand of multi-category flexible production.
Extensive adaptation in multiple fields, covering the whole new material industry chain
This series of twin-screw extruders has strong process compatibility, which can support the processing and production of many types of polymer materials:
1. Engineering plastic modification: PP, PA, PC, ABS glass fiber reinforcement, flame retardant, antistatic modification granulation;
2. Biodegradable materials: PLA and PBAT fully degradable resin mixing, filling and modifying production;
3. Manufacturing of functional masterbatch: processing of high-concentration color masterbatch, calcium carbonate filled masterbatch and functional auxiliary masterbatch;
4. Utilization of renewable resources: recycling and granulation of films, bottle chips and industrial plastic scraps;
5. Special polymer: TPE thermoplastic elastomer, cable material and polymer alloy mixing.
Different from the traditional drawing strip pelletizing matching scheme, this model can be adapted to diversified post-treatment matching processes such as water ring hot cutting and underwater pelletizing, and can flexibly match the whole production line according to customer’s production capacity and material characteristics to meet the differentiated needs of small and medium-sized test lines to 10,000-ton mass production lines.
Deeply cultivating the extrusion equipment track and continuously helping the new materials industry to improve quality and efficiency
As the source factory focusing on R&D and manufacturing of twin-screw extrusion equipment in China, Kolke has always focused on the localization and upgrading of polymer material processing equipment, and continuously optimized the three core indicators of equipment torque, mixing efficiency and energy consumption control by relying on standardized intelligent manufacturing workshop and mature complete machine debugging system. This batch of units rolled off the assembly line smoothly, further expanding the delivery capacity of the company’s large-scale mass-produced models. Subsequent enterprises will continue to deepen the track of modified plastics, degradable materials and recycled plastics, and help the new materials industry achieve efficient, low-carbon and intelligent production with high stability and high adaptability extrusion equipment.

With the advantages of modularity, high stability and wide adaptability, KTE series co-parallel twin-screw extrusion granulator of Kolke Extrusion Equipment Co., Ltd. has become the mainstream equipment in the fields of plastic modification, recycling granulation and masterbatch processing, helping the rubber and plastic industry to improve quality, efficiency, transformation and upgrading.
Special extrusion equipment for building block structure, focusing on the core technology of plastic mixing, modification and granulation, with compact structure and excellent configuration, can meet the needs of continuous industrial production of various rubber and plastic materials.
The hardware configuration of the device is solid and the performance is stable. The main engine is equipped with a high torque reduction motor, which has strong bearing capacity and is suitable for mass production and processing of high filling and high viscosity materials. The segmented alloy barrel is equipped with a multi-zone independent heating and water cooling circulation system, and the temperature control is accurate, which can effectively prevent material degradation and ensure the quality of particles. The building block screw assembly can flexibly adjust the aspect ratio, mixing structure and exhaust position, and quickly adapt to different production formulas and processes.
The equipment is equipped with a tapered forced feeding structure, which is compatible with powder and granular materials, and can be matched with weight-loss feeding equipment to achieve accurate proportion of multi-component raw materials. The whole machine adopts cantilever touch screen electronic control system, which can monitor the core parameters such as speed, temperature, pressure and torque in real time. With sound and light alarm and emergency shutdown functions, the operation is safe and convenient. The independent electrical control cabinet is equipped with high-quality PLC, frequency converter and other components to ensure the continuous and stable operation of the equipment for a long time.
The equipment has a wide range of application scenarios, and can be used for PP and PE modification and toughening filling, various color masterbatch and filling masterbatch production, PA, PC and PBT engineering plastic alloy blending and flame retardant modification, and is suitable for various production scenarios such as waste plastic recycling and degradable plastic mixing and granulation.
Cork Extrusion Equipment Co., Ltd. is located in Nanjing, China, specializing in R&D and production of extrusion granulation whole line equipment. It can provide one-stop services such as KTE series model sales, process customization and accessories matching, and provide equipment guarantee for efficient and intelligent production of rubber and plastic enterprises.

In the production workshop of Kerke Extrusion Equipment Co., Ltd., several sets of KTE series co-directional parallel twin-screw water-cooled pull bar granulation production lines have completed the whole machine assembly, linkage testing and factory inspection, and all the technology, energy consumption and stability indicators of the equipment have reached the standards. They will soon be sent to domestic new materials, modified plastics and degradable materials manufacturers in batches, providing domestic complete sets of extrusion solutions for the field of polymer processing.
The water-cooled draw bar granulation line commissioned this time is the mature main model of the enterprise. The whole line integrates precision feeding unit, KTE series twin-screw mixing host, hydraulic automatic screen changing die, ultra-long stainless steel cooling tank, frequency conversion traction unit, pelletizing auxiliary machine and a complete set of supporting systems of vacuum devolatilization, hydraulic drive and intelligent electronic control, and builds a closed-loop automatic production line from raw material feeding to finished plastic granule output.
The equipment is equipped with Kolke’s self-developed building block twin-screw barrel structure, with independent temperature control in sections, and a special gearbox with high torque. The internal meshing screw realizes high-intensity dispersion and melting mixing of materials; It is equipped with split side feeding and weight loss measuring system, which can accurately mix multi-component raw materials such as resin, glass fiber, calcium carbonate and functional additives; The vacuum devolatilization module efficiently removes water vapor and low molecular volatiles from the raw materials, and ensures the purity of finished particles from the source. The extruded plastic material strips are quickly water-cooled and shaped by a mobile long water tank, and the variable frequency traction motor is fed at a constant speed and stably, and finally the standard particles with uniform particle size, no burrs and no debris are cut, which supports 24-hour continuous industrial production.
Global adaptation to cover multi-track polymer material processing needs
As a high-tech enterprise deeply engaged in extrusion equipment for more than ten years, Kolke KTE series twin-screw granulation equipment has strong material compatibility, which can be adapted to all kinds of polymer material modified granulation production:
1. Modified plastics field: mass production of PP/PA/ABS glass fiber reinforcement, high-filled calcium carbonate, flame retardant and toughened modified particles;
2. Functional masterbatch track: special functional masterbatch production line for color masterbatch, antistatic, antibacterial and degradation;
3. Recycling sector: complete solutions for waste plastic sorting, cleaning, modification and recycling;
4. Green new materials: PLA, PBAT biodegradable plastics, wood-plastic composites, extrusion processing of new energy cable materials.
Compared with traditional extrusion equipment, Kolke’s self-developed screw components adopt wear-resistant alloy technology, and the hydraulic rapid screen change structure shortens the shutdown maintenance time, and reduces the energy consumption by more than 10% under the same production capacity. The models cover laboratory minicomputers (KTE-16) to large-scale mass production models (KTE-135), with a production capacity range of 100kg/h ~1200kg/h, which can match the differentiated production needs of small and medium-sized processing plants and large-scale new material industrial parks. It has served more than 3,000 enterprises at home and abroad, and its equipment is exported to more than 70 countries around the world.

KTE series co-directional twin-screw extrusion granulator completes the whole machine debugging work. As the mainstream core equipment in the field of plastic modification granulation, this equipment is widely recognized by industry customers for its mature process design and stable operating performance.
Relying on the co-directional twin-screw structure, equipped with a high-torque transmission system, and the building block screw combination design, the equipment can flexibly adjust the process module according to different raw material formulas, and fully plasticize, mix and disperse all kinds of polymer materials.
The equipment adopts the water-cooled granulation process of pulling strips, which is common in the industry. The raw materials enter the barrel through the feeding system, and the melting modification is completed under the action of twin screw shear. After the strip materials are extruded from the machine head, they are quickly cooled by the water-cooled tank, and finally processed into standard granules by the granulation device. The whole process runs smoothly, the finished product is in regular condition, and it is suitable for a variety of production scenarios.
At the practical application level, this model has a wide range of applications, and can meet various production needs such as plastic filling reinforcement, color masterbatch and functional masterbatch production, engineering plastics blending modification, degradable polymer material processing, etc. It is the key equipment in the production line of new rubber and plastic materials and plastic products enterprises.
As a professional R&D and manufacturing enterprise of extrusion equipment in China, Kolke has been deeply involved in the field of rubber and plastic machinery for many years. After continuous iterative optimization of its twin-screw extruder series products, the equipment stability, production efficiency and adaptability have been continuously improved. Relying on the standardized production workshop and perfect debugging system, the enterprise can provide customers with supporting services such as complete machine customization and strip testing, and continuously empower the intelligent and efficient production of the rubber and plastic industry.

Recently, a set of water-cooled pre-cooling + air-cooled water removal two-stage composite cooling twin-screw pull bar granulation production line has been assembled and debugged in the equipment workshop, innovatively integrating the dual processes of water-cooled shaping and air-cooled dehydration, breaking the application limitation of single water-cooled and single air-cooled granulation equipment, and bringing a new efficient and low-carbon production scheme to the modified plastics and masterbatch new material industries.
Process iteration: Two-stage cooling complements each other, taking into account both molding and low moisture production
The whole production line consists of four core modules: co-directional twin-screw extrusion main engine, front water-cooled tank, rear all-stainless steel air-cooled conveyor line and traction pelletizer unit, forming a complete closed-loop production process. The raw materials are fed into the twin-screw extruder after proportioning, and the mixing and plasticization are completed under the action of high-temperature screw shearing, and the molten materials are extruded from the machine head to extrude continuous strip-shaped blanks; The material strip first enters the water cooling tank to be immersed and quickly cooled, and relies on the water body to quickly cool down and shape, so as to avoid the adhesion and deviation of high-viscosity materials such as EVA, TPR and soft PVC from the source; The shaped wet material strip is drawn to the rear end stainless steel mesh belt conveying platform, and a plurality of sets of high-power fans at the top of the equipment supply air downward, and the water stains attached to the surface of the material strip and the residual heat inside are blown off by air convection, and the deep temperature control and water removal are completed before entering the pelletizing process, so that the moisture content of the finished particles is greatly reduced, and the necessary rear-end drying process of the traditional water-cooled production line is omitted.
Widening of suitable categories to cover multi-domain polymer material processing
The composite process production line is compatible with the production requirements of multi-category plastic granulation, and can not only mass produce high-filling masterbatch such as calcium carbonate and talc powder, flame-retardant color masterbatch, but also adapt to the modification production of hard materials such as glass fiber reinforced PP; It can also overcome the processing problems of special materials such as soft elastomer and PLA full biodegradable material. Previously, soft rubber compound could not be directly air-cooled due to viscosity, and full water-cooled granulation had the shortcomings of high water content and high drying cost. The new equipment filled the gap of mass production equipment of two kinds of raw materials through two-stage cooling combination.
Outstanding advantages in cost reduction and efficiency enhancement, boosting the green transformation of plastic processing industry
Compared with the traditional single process equipment, the water-cooled + air-cooled composite production line has significant economic benefits and environmental protection value: compared with the full water-cooled production line, the comprehensive energy consumption is reduced by about 20% after the drying equipment is cancelled, which reduces the loss and mildew risk of raw materials caused by water absorption drying; Compared with the full air-cooled production line, the equipment can produce high-viscosity and easy-to-stick materials, and the applicable scenarios of products can be expanded by leaps and bounds. At present, the domestic modified plastics and degradable new materials industry continues to expand, and the composite cooling and granulation equipment, which takes into account both versatility and energy-saving, is becoming the upgrading and selection direction of mid-to-high-end plastic processing plants, which continues to help the rubber and plastic processing industry steadily upgrade towards low-carbon and refined production.

Dear partners and industry colleagues:
We sincerely invite you to visit the International Plastics and Rubber Machinery Exhibition in Thailand 2026 (InterPlas Thailand 2026) to have a face-to-face exchange with Nanjing Kolke to explore the new development trends of the rubber and plastic industry together!
Exhibition Time: June 17-20, 2026 Exhibition Venue: Bangkok International Trade and Exhibition Center (BITEC), Thailand Booth No.: 4B08 (tentative)
As an influential exchange platform for the rubber and plastic industry in the ASEAN region, this exhibition brings together global industry partners and focuses on market dynamics and cooperation opportunities. At that time, the Kolke team will wait at the booth throughout the whole process, looking forward to in-depth exchanges and cooperation with you, and jointly expand the new future of the Southeast Asian market.
We are in Bangkok and look forward to your arrival!
Nanjing Kolke Extrusion Equipment Co., Ltd.

This equipment is specifically designed for polymer modification, formulation development, and small-batch pilot production, providing customers with efficient and stable material processing solutions.
The experimental twin-screw extruder delivered in this shipment features a modular design that integrates a feeding system, twin-screw barrel, cooling water tank, and pelletizing unit, enabling precise material feeding, melting, mixing, and molding. The equipment supports multi-dimensional adjustment of process parameters such as temperature, speed, and feed rate, making it suitable for formulation testing of various materials including engineering plastics, biodegradable materials, and color masterbatches. This helps customers quickly validate process solutions and reduce trial-and-error costs during mass production. During commissioning, the technical team collaborated with the client to complete equipment performance testing, process parameter optimization, and operator training, ensuring the equipment can be put into service immediately upon delivery.
As a professional manufacturer of extrusion equipment, Kork has always adhered to the core philosophy of “quality first.” Leveraging mature technological expertise and a comprehensive service system, the company provides customers with end-to-end services ranging from equipment customization and process support to after-sales maintenance. Moving forward, the company will continue to deepen its expertise in twin-screw extrusion equipment, empowering industrial upgrades through innovative technology, and providing the polymer materials industry with more efficient and reliable extrusion solutions.

This model features a high-torque drive system (132 kW main motor with high-torque output from the gearbox), a screw length-to-diameter ratio of 44:1, and a specific torque of 13.5 Nm/cm³, making it suitable for highly filled and high-glass-fiber formulations. The barrel employs a segmented modular design with precise temperature control, paired with a vacuum degassing system to effectively remove moisture and volatiles, ensuring uniform and stable pellet quality.
The equipment comes standard with a fully automatic big-bag feeding system and an underwater strand cutting system, enabling 24-hour continuous and stable production with a capacity of 600–800 kg/h. It is widely used in engineering plastics, modified plastics, and recycled plastics, and has been validated by numerous customers in field applications.
Kork has specialized in the R&D and manufacturing of twin-screw extrusion equipment for over a decade, focusing on applications such as plastic modification, glass fiber reinforcement, masterbatch production, and recycling pelletization. With advantages in high torque, high output, and low energy consumption, we help customers improve production efficiency. We provide customized turnkey solutions and full-cycle services.