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With the booming market for WPC (wood-plastic composite) production lines, numerous manufacturers have sprung up, resulting in inconsistent product quality. For companies looking to invest in WPC production, choosing the right production line is crucial; otherwise, they may face frequent equipment malfunctions and substandard product quality. However, by focusing on the following two certifications, many pitfalls can be avoided.   International Quality System Certification: A "Passport" to Quality ISO 9001 international quality system certification is a globally recognized quality management standard. It acts like a "passport" to quality, directly reflecting a manufacturer's standardization and rigor in quality management. For WPC production line manufacturers to obtain this certification means they have a complete and rigorous quality control system at every stage, from raw material procurement and production process control to finished product inspection. As an example of best practices in the industry, some manufacturers, after obtaining ISO 9001 certification, become more stringent in their raw material selection, using only raw materials that meet environmental protection and high-performance standards, ensuring the quality of their WPC production lines from the source. During production, they follow standardized operating procedures, reducing quality fluctuations caused by human factors. Nanjing Saiwang Technology Development Co., Ltd. is one such company that has passed ISO 9001-2000 international quality system certification. Its products demonstrate excellent quality stability, providing reliable WPC production lines and reducing quality risks during the production process.   Authoritative Product Certifications: A Touchstone for Performance Besides quality system certifications, authoritative certifications of the product itself are also crucial. For example, the WPC production line being listed in the "National Catalogue of Environmental Protection Equipment and Products Encouraged for Development" by the National Development and Reform Commission indicates that the product meets national standards for environmental protection and technical indicators, and possesses high market recognition and application value. Furthermore, EU CE certification serves as a "passport" for products entering the European market, imposing stringent requirements on product safety, health, and environmental protection. WPC production lines with CE certification meet European standards in electrical and mechanical safety, ensuring operator safety and facilitating international market expansion. SGS certification, from a globally renowned inspection, verification, testing, and certification body, ensures high credibility for WPC production lines, as they have undergone rigorous testing in product quality and performance. Nanjing Saiwang Technology's wood-plastic composite equipment has obtained both EU CE and SGS certifications, providing strong support for its international market entry and demonstrating the reliability of its product performance and quality.   When selecting a WPC production line, companies must pay close attention to these two certifications. They act like "double insurance," helping companies select reliable and high-performance production lines, avoiding common selection pitfalls, and safeguarding their WPC production journey.    

In today's booming flooring market, LVT (luxury vinyl tile) flooring has become a favorite among many consumers due to its advantages such as waterproofing, wear resistance, and ease of installation. The quality and production efficiency of LVT flooring production lines directly determine product quality. So, which company has the greatest strength in this area?   I. Core Processes Determine Product Quality   LVT flooring production involves multiple complex processes, including raw material mixing, calendering, and surface treatment. A high-quality manufacturer's production line should have a precise raw material proportioning system to ensure uniform mixing of various components, laying the foundation for subsequent production. Taking Saiwang Technology as an example, as a professional flooring production equipment manufacturer, it uses advanced metering equipment in the raw material mixing stage to accurately control the proportions of each raw material, ensuring stable product performance.   Calendaring is a crucial step, requiring equipment to provide stable and uniform pressure and temperature. Saiwang Technology's calenders employ a high-precision control system that can precisely adjust pressure and temperature parameters according to different product specifications and pattern requirements, resulting in a smooth surface and clear texture on the LVT flooring, achieving high-quality standards. II. Equipment Stability Ensures Production Efficiency   Stable equipment is the prerequisite for continuous production. Saiwang Technology's LVT flooring production line uses high-quality components, undergoes rigorous testing and long-term operational verification, and possesses high reliability and stability. Its advanced electrical control system can monitor equipment operating status in real time, providing early warnings of potential faults and reducing downtime.   Furthermore, Saiwang Technology emphasizes daily equipment maintenance and upkeep guidance, providing customers with comprehensive after-sales service to ensure that the equipment is always in optimal operating condition, greatly improving production efficiency and reducing production costs. In summary, in the field of LVT flooring production line technology, manufacturers like SKY WIN, with their advanced core processes and stable equipment, have a greater advantage. When making a selection, companies should consider SKY WIN as an important reference point to help them achieve outstanding results in the LVT flooring market.

Flooring extrusion lines—whether for SPC, WPC, LVT, or PVC products—are complex systems that require coordinated performance across feeding, extrusion, cooling, hauling, cutting, and stacking. Even high-quality machines can encounter issues after long-term operation or improper parameter settings. Understanding these common problems and knowing how to troubleshoot them will help manufacturers improve product quality, reduce downtime, and increase overall efficiency. Below are the most frequent issues seen in flooring extrusion production—and practical solutions you can apply immediately.   1. Unstable Extrusion Output Symptoms: Fluctuating extrusion pressure Inconsistent product thickness Visible waves or uneven surfaces Possible Causes & Solutions: ✔ Feeding inconsistency – Check hopper level, dryness of materials, and stability of the feeding system. Ensure the metering feeder is calibrated. ✔ Screw wear – Worn screws reduce plasticizing efficiency; replace or repair them. ✔ Temperature settings incorrect – Optimize barrel temperature from feeding zone to die head to maintain stable melt flow.   2. Poor Plasticizing or Incomplete Fusion Symptoms: Bubbles inside the board White spots or unmelted particles Weak mechanical strength Solutions: ✔ Increase barrel temperatures to improve melting. ✔ Reduce feeding speed if the material is not melting sufficiently. ✔ Check CaCO₃ ratio and additives—excess filler can cause poor fusion. ✔ Inspect screw design—low-quality or unsuitable screw profiles reduce plasticizing performance.   3. Product Thickness Variation Symptoms: Thickness too thick or too thin Left–right asymmetry Frequent thickness fluctuation Solutions: ✔ Check die head bolts—ensure even fastening and proper die lip opening. ✔ Stabilize melt pressure with proper temperature control and screw speed. ✔ Ensure calender rollers are aligned; adjust leveling screws or hydraulic system. ✔ Keep automatic thickness gauge calibrated for lines equipped with auto-control systems.   4. Surface Defects (Scratches, Impurities, Fish-Scale Pattern) Symptoms: Scratches on SPC/WPC base layer Foreign particles or black dots     Wavy “fish-scale” surface Solutions: ✔ Clean die head and filter mesh to remove degraded material. ✔ Check cooling roller surfaces for dirt or metal burrs. ✔ Prevent dust contamination around the extrusion line. ✔ Replace old sealing rings in the extrusion system to avoid leaking burnt resin.   5. Warping or Poor Dimensional Stability Symptoms: Boards curl or warp after cooling LVT layers shrink SPC tiles not flat Solutions: ✔ Ensure uniform roller temperature—uneven cooling creates stress. ✔ Optimize raw material formula; excessive CaCO₃ can lead to shrinkage. ✔ Reduce traction speed to avoid internal tension. ✔ Dry materials properly—moisture causes deformation.   6. Low Production Output Symptoms: Lower throughput compared to rated capacity Increased energy consumption per ton Solutions: ✔ Inspect screw and barrel wear—major cause of output loss. ✔ Optimize temperature settings for faster plastification. ✔ Ensure feeder output matches extrusion capacity. ✔ Clean vacuum chamber—poor vacuum lowers output and affects quality.   7. Frequent Die Head Blockage Symptoms: Pressure spikes Melt leakage Product surface defects Solutions: ✔ Replace filter screen regularly to prevent contaminants entering the die. ✔ Use high-quality, stable raw materials to minimize impurity build-up. ✔ Increase die temperature slightly to improve melt flow. ✔ Perform scheduled die head cleaning to avoid carbonization.   How to Prevent These Issues in Advance A well-designed machine from a reliable manufacturer can reduce more than 70% of operational issues. To maintain stable production: Use high-configuration equipment with precise temperature control and durable screw designs. Follow a preventive maintenance plan—check gearboxes, lubrication, heaters, and sensors regularly. Train operators on process parameters and troubleshooting skills. Choose equipment with strong after-sales support for fast problem resolution.   Why Choose SKY WIN / Saivon Extrusion Lines? SKY WIN provides high-configuration, high-quality extrusion equipment with: 20+ years of industry experience Advanced screw and die design Stable temperature & pressure control Reliable electronics from international brands Strong global installation and after-sales service Our SPC, WPC, LVT, and PVC wall panel extrusion lines are widely used in more than 40 countries and trusted for their consistency, durability, and technology advantage.