Successful Factory Acceptance Test of Custom 75mm PE Pipe Extrusion Line at Sevenstars Machinery

On October 27, 2025, Zhangjiagang Sevenstars Machinery Co., Ltd. successfully completed the factory acceptance test (FAT) of a tailor-made 75mm PE pipe extrusion line for an international client. This milestone marked not only the final performance verification of the equipment but also a demonstration of Sevenstars’ rigorous quality assurance protocols and customer-centric engineering approach. The test run ensured that every technical parameter precisely matched the client’s production requirements, enabling a seamless transition from delivery to full-scale operation.

Pre-Test Preparations: Aligning Engineering with Real-World Needs

In the weeks leading up to the test run, the Sevenstars project team conducted multiple rounds of in-depth technical discussions with the client. These communications went beyond standard specifications. Based on the client’s typical pipe application scenarios—ranging from municipal water supply to industrial conduit systems—the team fine-tuned the raw material adaptation mode of the PE pipe extrusion line. This adjustment guaranteed compatibility with the specific resin blends and additives that the client regularly uses, thereby minimizing material waste and optimizing melt homogeneity.

Furthermore, taking into account the existing layout constraints of the client’s workshop, Sevenstars’ engineers redesigned the interconnection method between individual modules of the extrusion line. This proactive optimization eliminated potential spatial conflicts during on-site installation, reducing both commissioning time and civil modification costs. The team also reviewed the client’s historical production workflows and simplified the machine’s operating logic accordingly, lowering the learning curve for local operators. Every modification was driven by a single goal: to transform this custom pipe production line into a reliable, high-efficiency asset for the client’s daily manufacturing.

The Test Run: Validating Performance Under Realistic Conditions

On the day of the test, the 75mm PE pipe extrusion line was started following the client’s actual standard operating procedures. Raw materials were fed into the extruder, where they underwent controlled plastification, degassing, and pressure build-up before passing through a precision die head. The molten pipe emerged, moved through a vacuum calibration tank for dimensional accuracy, then through multi-stage spray cooling, haul-off units, and finally a planetary cutter for clean, burr-free cuts.

Throughout the two-hour continuous run, the production line maintained exceptional stability. Key metrics—including screw speed, melt temperature, line pressure, and wall thickness uniformity—remained within ±1% of target values. The resulting 75mm PE pipes exhibited a smooth surface texture, consistent circumference, and squarely cut ends, all meeting or exceeding the client’s quality benchmarks. No unexpected deviations, material bridging, or drive fluctuations occurred, confirming the robustness of Sevenstars’ engineering and assembly practices.

Client Engagement: Real-Time Remote Witness and Positive Feedback

Due to travel constraints, the client witnessed the test run via a live video feed, with real-time data sharing through a secure portal. After observing the complete cycle—from raw material feeding to finished pipe ejection—the client’s technical manager engaged in an immediate offline feedback session. He expressed strong satisfaction with the results, noting that the level of detail in pre-sales communication and the precision of the final output exceeded expectations. “From the initial requirement mapping to today’s demonstration, Sevenstars has shown not only technical competence but also genuine care for our operational realities,” he stated. This validation solidified the client’s confidence that the equipment would integrate smoothly into their existing production line and support their upcoming capacity expansion plan.

Post-Test Run Actions: Ensuring Safe Delivery and Long-Term Reliability

Immediately following the successful test, Sevenstars Machinery’s logistics and after-sales teams initiated the disassembly, anti-rust treatment, and export-packaging procedures for the PE pipe extrusion line. Each module was carefully documented, and a comprehensive commissioning manual—including test run data logs and recommended spare parts lists—was prepared. The company’s professional after-sales service team, which boasts extensive experience in machine installation and on-site training, has already scheduled a deployment engineer to assist the client during initial setup at their facility. This structured handover process reflects Sevenstars’ commitment to “customer satisfaction as our job,” ensuring that the equipment’s performance in the field matches its factory-proven capability.

A Reflection of Sevenstars’ Integrated Manufacturing Strength

This successful test run is not an isolated event but a direct outcome of Zhangjiagang Sevenstars Machinery’s holistic quality management system. With a 200,000-square-meter factory purpose-built for large-scale production and a 100-strong workforce covering R&D, sales, production, and after-sales, the company has embedded rigorous quality control at every stage—from raw material sourcing and component machining to final assembly and testing. The independent R&D department continuously optimizes equipment energy efficiency and operational throughput, while the sales team delivers solution-oriented configurations that address diverse production scenarios. Such integrated capabilities allow Sevenstars to offer not only standard plastic extrusion lines but also highly customized solutions for PE pipe, profile, and recycling applications.

Looking Ahead: Building Trust Through Verified Performance

For Sevenstars Machinery, every factory acceptance test serves two purposes: verifying equipment integrity and deepening client trust. As the company continues to serve over 150 countries—including Mexico, the United States, Brazil, Chile, and across Southeast Asia—its reputation rests on transparent, data-backed demonstrations like this 75mm PE pipe extrusion line test. Clients are encouraged to participate either on-site or remotely, ensuring that what is delivered matches exactly what was promised.

If you are planning to upgrade or expand your plastic pipe manufacturing capacity, contact Zhangjiagang Sevenstars Machinery Co., Ltd. today. Our team is ready to provide a detailed proposal, including a virtual or live test run of your custom-built extrusion line, so you can verify performance before making a final investment decision.

For more information about our PE pipe extrusion lines, plastic recycling lines, and auxiliary equipment, please visit our product page or request a quote directly.