Multiple Production Lines Of Twin-screw Extruders in The Same Direction Are Shipped At The Same Time - Why Has COLOWE Become The Default Option For Global Environmental Modification Factories?
1, Technical Hard Power: Breakthrough in "Mixing Accuracy" and Specific Energy Consumption of Same Direction Double Screw Extruder
The reason why the co rotating twin-screw extruder has become the mainstream model for plastic modification, filling, reinforcement, and reactive extrusion lies in its modular screw combination and precise shear/mixing control. The 65mm co rotating twin-screw extruder production line delivered by Kelongwell has a length to diameter ratio of 48:1, a maximum screw speed of 900rpm, and is equipped with a high torque gearbox (specific torque 11.3 N · m/cm ³), which can switch kneading blocks, toothed discs, and reverse threaded components for different materials. According to the statistical data of the China Plastics Machinery Industry Association in 2025, the average specific energy consumption of twin-screw extruders of the same specification and direction is 0.28-0.32 kWh/kg, while the measured energy consumption by Kelongwell is stable at 0.24 kWh/kg, saving about 20% energy. This means that a production line with an annual output of 5000 tons of modified plastics can reduce electricity expenses by about 120000 yuan per year (calculated at an industrial electricity price of 0.8 yuan/kWh), while reducing indirect carbon emissions by about 96 tons of CO ₂ e.
For customers who are new to plastic extruders, terms such as screw speed, aspect ratio, and specific torque may be unfamiliar. Simply put, the longer the aspect ratio, the more evenly the material stays in the barrel and the better the dispersion and mixing effect; The higher the specific torque, the greater the shear force output of the same motor power, making it suitable for high filling (such as calcium carbonate filled PP up to 60%) or high viscosity systems (such as TPE, flame-retardant ABS). COLOWE's cost-effective co rotating twin-screw extruder has not reduced these core parameters due to its affordable price - all gearboxes use carburizing quenching and gear grinding technology, and the cylinder liner is made of bimetallic centrifugal casting, with wear resistance three times higher than that of nitride steel.
Authoritative external chain support: The White Paper on Circular Plastic Processing Technology released by Plastics Europe in 2025 points out that the dispersion and mixing efficiency of the mixing type co rotating twin-screw extruder determines the degree of mechanical performance recovery of recycled materials. High quality equipment can increase the tensile strength retention rate of recycled PP from 72% to 89%.
2, Environmental adaptability: a "green channel" from waste plastic recycling to biodegradation modification
The current global plastic pollution control has entered the fast lane of legislation. In August 2026, the revised version of the European Union's Packaging and Packaging Waste Regulation (PPWR) officially came into effect, requiring that by 2030, the recycled content in all plastic packaging should not be less than 30%; The "14th Five Year Plan" for the development of circular economy in China also specifies that the recycling rate of waste plastics will reach 35% by 2025. These policies have directly driven the demand for environmentally friendly plastic extruders, especially co rotating twin-screw extruders that can handle high impurities, high moisture, and mixed waste plastics.
Two of the production lines recently shipped by Kelongwell are designed specifically for rPET bottle flakes to be dry and adhesive free. They use a dual stage co rotating twin-screw extruder and vacuum devolatilization unit, which can increase the IV value from 0.55 dL/g to 0.78 dL/g without the need for crystallization drying, saving 35% energy compared to traditional routes. The other one is used for PLA/PBAT blown film modification, equipped with liquid plasticizer side feeding and low-temperature screw combination (maximum melt temperature controlled within 175 ℃), to avoid thermal degradation yellowing of biodegradable materials. According to the June 2026 report by the United Nations Environment Programme (UNEP), approximately 400 million tons of plastic waste are generated globally each year, with only 9% being recycled, with mechanical recycling dominating. The co rotating twin-screw extruder is the most critical melting filtration and modification equipment in mechanical recycling. The advantages of the high cost-effectiveness extruder from Kelongwell in recycling scenarios are: large aspect ratio, high vacuum exhaust, and wear-resistant threaded components - these configurations are usually found on high-end models, but Kelongwell has reduced the price of entry-level environmentally friendly plastic extruders by 18% through modular design.
3, High cost-effectiveness and full cycle risk control: the "first equipment" for first-time customers
For international customers who are trying to produce new materials for the first time (such as bamboo powder/PLA composites, starch based degradable materials, rHDPE pipeline materials), their biggest concern is not the equipment price, but whether the equipment can run stably after purchase and what to do if the process formula cannot be adjusted. The answer given by Kelongwell is: turnkey project+72 hour material acceptance+remote IoT operation and maintenance.
Data evidence: In the first half of 2026, out of the 31 cost-effective twin-screw extruder production lines delivered by COLOWE, 22 were customers' first plastic extruder production lines. Among them, 19 were installed, debugged, and produced qualified particles within 7 days after arrival at the factory, with a success rate of 93% for one start-up. The standard PLC control system of the equipment supports 12 temperature control zones, closed-loop feedback of melt pressure, and weight loss feeding linkage. Even if the operator is inexperienced, they can call process parameters with one click through the preset "formula package". COLOWE also provides lifelong free screw combination optimization suggestions for each production line - based on 4000+sets of laboratory formula data, customers can return recommended screw configurations and temperature curves within 72 hours after sending material samples.
4, Key question and answer: dispel the final doubts of first-time contacts
Q1: I work in wood plastic composite materials, with a total filling of 60% calcium carbonate and wood powder. Can a co rotating twin-screw extruder handle it? Will the screw wear frequently?
A: COLOWE is a cost-effective co rotating twin-screw extruder optimized for high filling systems. Both the screw and cylinder are made of high chromium cast iron or bimetallic overlay, with a Rockwell hardness of HRC58-62. We measured that the continuous operation of calcium carbonate filled PP (60% filling) for 2000 hours resulted in a screw outer diameter wear of less than 0.15mm. The key is to use a "low shear, high dispersion" screw combination, combined with lateral forced feeding, to avoid excessive shear leading to wood powder carbonization.
Q2: Is a high cost-effective extruder equivalent to a "reduced version"? What is the difference compared to imported equipment that costs 30% more?
A: High cost-effectiveness does not equate to low configuration. COLOWE reduces costs by standardizing mass production of gearboxes, unifying cylinder pitch, and reducing unnecessary customization options, rather than sacrificing core performance. For example, all of our co rotating twin-screw extruder gearboxes have a 5-year warranty, A/B dual channel lubricating oil cooling, and a bearing life design of 100000 hours - these parameters are consistent with mainstream European brands. The difference is mainly reflected in brand premium and certain ultra high speed (above 1200rpm) models, but for 95% of modified granulation scenarios, 900rpm is completely sufficient.
Q3: I want to modify fully degradable plastic PLA/PBAT film, but I am concerned that poor temperature control may cause degradation. Is there any special design for the equipment?
A: COLOWE environmentally friendly plastic extruder has developed a "low-temperature melting" screw combination for thermal sensitive materials: the length to diameter ratio can be selected as 56:1, using a small lead deep screw groove and efficient kneading block, and the maximum temperature of the melt is 12-18 ℃ lower than traditional designs. The cooling of the barrel adopts fully enclosed soft water circulation, with a temperature control accuracy of ± 1 ℃. The PLA/PBAT modified line we recently delivered to our Thai client showed a measured melt index drift rate of ≤ 3% and a membrane product fracture elongation retention rate of 92%.
5, Conclusion: Choosing COLOWE, choosing a set of "replicable production determinacy"
In September 2026, another batch of co rotating twin-screw extruder production lines from COLOWE will be sent to South America for trial production of coffee grounds filled with biobased materials. Every shipment is not the end point, but the starting point for customers to move from "laboratory formula" to "industrial mass production". According to the Grand View Research 2026 Extruder Market Report, the global twin-screw extruder market is expected to expand at a compound annual growth rate of 5.8%, with high cost performance extruders experiencing a penetration rate growth rate of up to 11% in Southeast Asia, the Middle East, and Africa. COLOWE does not pursue the ultimate profit of a single device, but uses modular design, standardized services, and real and verifiable energy consumption data to enable every customer who pursues environmental protection and efficiency to choose the right plastic extruder for the first time.
