Month: July 2026

Recently, our customized ECM250S continuous mixer unit has completed the whole process of factory inspection and online acceptance by customers. All the operating parameters and process performance of the equipment have reached the standard, and the complete assembly is waiting to be shipped to the Brazilian production base.
Accurately match customer working conditions, adapt to multi-masterbatch production conditions, and have strong process coverage
This continuous internal mixing system with an output of 200 kg per hour is extremely versatile, and can be widely adapted to the production of mainstream rubber-plastic modified products such as high-filled calcium carbonate masterbatch, talc powder filling masterbatch, carbon black conductive masterbatch and color functional color masterbatch, and accurately match the mass production demand of EVA high carbon black filler of Brazilian customers. The whole set of equipment realizes the continuous operation of the whole process of feeding, internal mixing, extrusion and discharge, and the staying time of materials in the cavity is accurate and controllable. It is equipped with a vacuum negative pressure exhaust system, which can efficiently remove the water vapor and low molecular volatiles inside the materials, improve the density and appearance quality of masterbatch finished products from the source, and adapt to the normalized continuous production operation of large-batch and fixed formula in the factory.
Compared with traditional batch internal mixing, the production advantage is outstanding
1. Higher production efficiency: Abandoning the intermittent operation mode of intermittent feeding and waiting for discharge, the whole production line can stably maintain 200kg/h discharge operation for a long time, and it is suitable for the automatic extrusion granulation line, and the utilization rate of unit capacity is greatly improved.
2. The shear working condition is milder: the controllable mixing shear strength can not only ensure the uniform dispersion of powder filler, but also not cause excessive shear degradation of polymer matrix, thus stably ensuring the mechanical properties of materials;
3. High process consistency: real-time closed-loop adjustment of various parameters of temperature, pressure and speed, minimal fluctuation of color difference and dispersion of different batches of products, and the quality stability of finished products is far better than that of intermittent production mode;
4. Lower operation and maintenance cost: the continuous structure has balanced heating, and the global water cooling + zoned precision heating system has more advantages in equipment loss and energy consumption control.
Hard-core customized configuration to build the bottom line of overseas delivery quality
The model of this Brazilian project adopts wear-resistant and corrosion-resistant core components such as double-alloy chrome-plated rotor and nitrided screw, and multi-section zoned temperature control, servo discharge and vacuum exhaust system are integrated and controlled. The equipment has gone through multi-layer quality inspection and audit of assembly and debugging, no-load trial operation and simulation calibration with materials, and successfully completed the acceptance with stable and reliable performance of the whole machine.
This equipment acceptance has further consolidated the company’s cooperation foundation in the South American rubber and plastic masterbatch equipment market. Kerke will continue to provide stable and efficient continuous production equipment support for rubber and plastic modification enterprises at home and abroad with customized complete sets of mixing and extrusion schemes.

Type 65 twin-screw granulating unit of Kerke  Extrusion Equipment Co., Ltd., which supports the PET recycling project in Korea, was successfully delivered to the customer’s factory area. The company sent a professional technical team to the site to complete the whole process delivery of equipment in-place assembly, online debugging of the whole machine and on-site practical training. The designed capacity of this machine can reach 300KG/h, the operation parameters of the equipment have passed the calibration, the operation conditions are stable, and the mass production conditions of PET waste recycling granulation are officially met.
Site Implementation Details
The equipment delivered this time is specially customized and developed for the customer’s PET plastic recycling and recycling process. The 65 twin-screw host is equipped with intelligent touch operating system, accurate weight loss feeding system, multi-section zoned temperature control cylinder and independent supporting electric control cabinet. Our engineers successively completed pipeline connection, circuit verification, temperature calibration, transmission no-load test, and trial production debugging with materials, and strictly optimized the process parameters according to the 300KG/h rated capacity standard to ensure the stable and controllable quality of PET material plasticization, extrusion and granulation.
During the commissioning period, special technical training was carried out simultaneously, and the start-up and shutdown process of the unit, the allocation of PET processing technology parameters, the daily inspection specifications, the maintenance and replacement of wear parts, the emergency treatment of common faults, the regular maintenance plan of equipment, etc. were explained to the Korean production operators. Combined with the demonstration operation teaching of real machines, it was ensured that the partner personnel could independently complete the safe operation and basic maintenance of the whole PET recycling and granulation production line.
OVERVIEW OF CORPORATE
The successful delivery of PET recycling project equipment in South Korea is another achievement of Kerke  in the field of overseas waste plastics recycling. The company is deeply involved in the R&D and manufacturing of twin-screw extrusion granulation equipment, and has launched models with corresponding specifications for subdivided scenarios such as PET bottle chip recycling, plastic modification and new material granulation. At the same time, it is equipped with an integrated service system of door-to-door installation, on-site commissioning, face-to-face technical teaching and long-term after-sales support, providing complete sets of stable extrusion equipment solutions for renewable resources enterprises at home and abroad.
In the follow-up, Kerke  will continue to iterate the performance of recycling and granulation equipment, optimize the delivery service system of overseas projects, continuously expand the international cooperation territory, and empower the development of global new material processing industry with excellent product quality and professional technical services.

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.