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Nanjing Henglande Machinery Technology Co., Ltd.
About us
Your Professional & Reliable Partner.
HLD is a professional manufacturing company specializing in research, development, design, and production of high-quality machinery products including “parallel twin-screw extruders,” “single-screw extruders,” as well as screw elements and kneading elements.We have more than 20 years of experience in the plastic machinery industry, we are one of the famous machinery manufacturers in China. Exports to more than 20 countries. Perfect design and service team, The factory is over 5000 square meters. ...
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Year Established

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Million+
Employees

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Million+
Customers Served

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Million+
Annual Sales
China Nanjing Henglande Machinery Technology Co., Ltd. HIGH QUALITY
Trust Seal, Credit Check, RoSH and Supplier Capability Assessment. company has strictly quality control system and professional test lab.
China Nanjing Henglande Machinery Technology Co., Ltd. DEVELOPMENT
Internal professional design team and advanced machinery workshop. We can cooperate to develop the products you need.
China Nanjing Henglande Machinery Technology Co., Ltd. MANUFACTURING
Advanced automatic machines, strictly process control system. We can manufacture all the Electrical terminals beyond your demand.
China Nanjing Henglande Machinery Technology Co., Ltd. 100% SERVICE
Bulk and customized small packaging, FOB, CIF, DDU and DDP. Let us help you find the best solution for all your concerns.

quality Twin Screw Extruder & Recycling Plastic Pelletizer manufacturer

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Enhancing PET Production with Masterbatch Coloring
Overview A leading PET bottle manufacturer in Southeast Asia successfully upgraded its production line by integrating masterbatch coloring technology, enhancing product quality and achieving greater color consistency. This case study explores the implementation process, challenges faced, and the benefits gained from this technological advancement. Background The company specializes in producing PET bottles for the beverage industry, supplying to major brands across the region. With increasing demand for vibrant and uniform bottle colors, the manufacturer sought to improve its traditional coloring methods, which often led to color inconsistency and high wastage rates. Solution Implementation After evaluating various options, the company opted for masterbatch coloring during the extrusion process. Using a twin-screw extruder, PET resin was mixed with color masterbatch directly during melt processing. This method ensured even dispersion of pigments, resulting in consistent color throughout the material. The twin-screw extruder’s high shear and mixing capabilities were crucial in achieving this uniformity. Additionally, the extruder allowed precise control over the pigment load, minimizing material waste and reducing production costs. Challenges and Solutions One of the initial challenges was optimizing the masterbatch ratio for different color intensities. Through multiple test runs and adjustments to the extrusion parameters, the ideal mixture was established, ensuring vibrant colors without affecting the PET’s mechanical properties. Furthermore, staff training was conducted to familiarize the production team with the new process, enhancing efficiency and reducing errors during color changes. Results and Benefits Improved Color Consistency: Masterbatch coloring significantly enhanced color uniformity across all PET bottles. Reduced Waste: The precise control of pigment dispersion minimized material wastage, cutting costs by 12%. Enhanced Production Efficiency: Faster color transitions and reduced downtime boosted overall productivity. Sustainability: The process also supported the company's sustainability goals by reducing pigment waste. Conclusion The integration of masterbatch coloring with twin-screw extrusion proved to be a game-changer for the manufacturer. It not only elevated the quality of PET bottles but also contributed to cost savings and environmental sustainability. This case study demonstrates the value of technological upgrades in modern plastic manufacturing.  
High-performance nylon (PA6) extrusion molding case - intelligent temperature control system improves yield
An auto parts manufacturer needs to produce nylon (PA6) fuel pipes with high temperature resistance and high dimensional stability, requiring the wall thickness error of the extruded finished product to be ≤0.1mm and the long-term temperature resistance to be ≥130℃. With the trend of lightweight automobiles, the demand for the application of PA6 materials in fuel systems has increased sharply, but traditional extruders have problems such as large temperature fluctuations and uneven plasticization. Solution:Use our TSE-95B twin-screw extruder, configured with:1. Intelligent zoned temperature control system8-stage independent temperature control module, real-time adjustment of the temperature of each section of the screw (±1℃ accuracy), solve the problem of thermal degradation during high-temperature processing of PA6, and improve the stability of the material melt flow index (MFI) by 30%.2. Dual-channel barrier screwSpecially designed mixing section and exhaust section improve the dispersion of PA6 and glass fiber reinforcement (when the glass fiber content is 30%, the dispersion uniformity is >95%), and the finished product tensile strength reaches 180MPa.3. Energy consumption optimization moduleIntegrated servo drive system, energy saving 22% compared with traditional extruders, electricity cost reduced by 15 yuan/hour during continuous production. Project results:Successful mass production of PA6 fuel pipe, wall thickness error controlled within ±0.08mm, temperature resistance up to 135℃ (ASTM D638 standard);Customer production line efficiency increased by 40%, annual production capacity exceeded 2 million meters;The case was certified as a Tier 1 supplier in the automotive industry and has been mass-produced with new energy vehicles.
Maintenance Tips for Twin-Screw Extruders to Ensure Optimal Performance
Regular maintenance of twin-screw extruders is crucial to maintain their performance, extend their lifespan, and avoid costly downtime. These versatile machines, often used in the processing of polymers, require routine checks and care to function efficiently. To ensure smooth operation, it is recommended to perform daily inspections of the screw elements and barrel for signs of wear or damage. Cleaning the barrel and screws after each use prevents material build-up, which can lead to uneven extrusion or contamination. Lubricating the drive components and checking the alignment of the screws will reduce friction and enhance the overall stability of the extruder. Regularly monitoring temperature and pressure settings is essential for consistent results. Sudden temperature fluctuations or irregular pressure can indicate potential issues that may affect the quality of the final product. Additionally, replacing worn-out or damaged parts, such as seals and bearings, is essential to prevent malfunctions and downtime. For optimal results, scheduled professional servicing should be considered, especially for high-production machines. A proactive maintenance approach not only enhances machine efficiency but also ensures the quality of extruded materials. By following these basic maintenance guidelines, operators can maximize the performance and lifespan of their twin-screw extruders, ensuring reliable output and reducing unexpected repairs.

2025

03/20

Innovative breakthrough: Application of experimental twin-screw extruder in the production of TPE mixed iron powder plastic particles
  Innovative breakthrough: Application of experimental twin-screw extruder in the production of TPE mixed iron powder plastic particles   In the field of plastics processing, thermoplastic elastomers (TPE) are favored for their superior physical properties and environmental properties. Recently, our company successfully applied experimental twin-screw extruder to the production of TPE mixed iron powder plastic particles, this innovative technology not only improves the production efficiency, but also broadens the application range of TPE.   The processing temperature of TPE materials is generally between 150-240 degrees Celsius, depending on the hardness and formulation of TPE. For soft materials, the processing temperature is usually 150-190 degrees Celsius, while for materials with higher hardness, a processing temperature of 180-240 degrees Celsius is required. In the production of TPE mixed iron powder, precise control of this temperature range is essential to ensure product quality.   TPE material is widely used in many fields because of its excellent flexibility, low temperature resistance and chemical resistance. These sectors include automotive parts, medical devices, sporting goods, electronics packaging, and building materials. The addition of TPE mixed iron powder plastic particles further expands its application prospects in the field of magnetic materials and electromagnetic shielding.   The experimental twin-screw extruder realizes the efficient production of TPE mixed iron powder plastic particles through its precise screw design and temperature control. The work flow of the extruder includes three steps: charging, heating and extrusion: Feeding: Solid plastic pellets are fed into the feeding device and then pushed into the barrel by the screw. Heating: In the barrel, an electric heating device heats solid plastic pellets to a molten state. The shear action of the screw helps the plastic to melt and mix fully. Extrusion: The molten plastic material passes through the extruder cylinder into the extruder head, where a specific shape profile is formed.   In the production of TPE mixed iron powder plastic particles, the screw design of twin-screw extruder is particularly important. It needs to be able to disperse the iron powder evenly to ensure its adequate mixing with the TPE material to produce particles with uniform properties. In addition, the long L/D ratio and high torque gear box of the twin-screw extruder provide sufficient reaction time for mixing, which is critical for the quality of the TPE mixed iron powder particles.               .

2021

10/31