Plastic Pipe Production with Advanced Meter Weight Control Solutions

In the competitive landscape of plastic pipe manufacturing, achieving precise meter weight control is paramount. It directly impacts product quality, production costs, and overall profitability. Jiangsu Xinrongplas Machinery Co., Ltd., a leading provider of plastic extrusion equipment, understands these critical challenges and offers advanced solutions integrated into our PVC pipe production lines, PE pipe production lines, PPR pipe production lines, and more. These solutions empower our clients to overcome production hurdles and gain a significant market advantage.

The Significance and Challenges of Meter Weight Control（Gravimetric loss-weight control system)

Meter weight, the weight of the pipe per meter, is a key indicator of quality in plastic pipe manufacturing . Accurate control ensures optimal material usage while maintaining the required mechanical properties of the pipe, such as hydrostatic strength, ring stiffness, and impact resistance . In an environment of fluctuating raw material prices and increasingly stringent market tolerance requirements, precise and stable meter weight control is essential .

Key challenges in achieving this control include:

· Raw Material Variations: Differences in density and melt flow index (MFI) between different batches of raw materials .

· Extruder Instability: Fluctuations in extruder temperature, melt pressure, and screw speed affecting output consistency.

· Draw Ratio Inaccuracy: Insufficient precision in controlling the matching degree of traction speed and extrusion speed (SDR draw ratio) .

· Cooling and Sizing Variations: Instability in cooling and shaping processes (vacuum degree, water temperature) impacting final dimensions

· Delayed Feedback: Lag in offline weighing feedback, hindering real-time production adjustments

· Inadequate Online Detection: Insufficient accuracy and reliability of online detection equipment

Xinrongplas' Core Technological Solutions

To address these challenges, Jiangsu Xinrongplas Machinery Co., Ltd. incorporates the following core technologies into its pipe production lines:

· Extrusion-Traction Closed-Loop Speed Linkage (Precise SDR Control): Our control system precisely and dynamically coordinates screw speed and traction speed in real-time based on set target pipe dimensions (outer diameter, wall thickness) or SDR values, ensuring a constant draw ratio.

· Integrated Control for Multi-Layer Pipes: For multi-layer pipes, our system allows unified control of meter weight for multiple extruders on a single touchscreen. By simply entering the ratio of each layer and pipe dimensions such as diameter and wall thickness, the system achieves fully automatic control. It precisely and automatically adjusts the screw speed of the corresponding extruder and the speed of the traction machine in real-time .

Product Range

Jiangsu Xinrongplas Machinery Co., Ltd. manufactures a wide range of pipe production lines, including:

· PE pipe machines: Diameter range of 16-2000mm

· PPR pipe machines: Diameter range of 16-250mm

· PVC pipe machines: Diameter range of 16-1200mm

· PVC-O pipe machines

· Double-wall corrugated pipe machines

About Jiangsu Xinrongplas Machinery Co., Ltd.

Jiangsu Xinrongplas Machinery Co., Ltd. is a high-tech enterprise specializing in the research, development, and manufacturing of plastic extrusion equipment . Founded in 1996, we are committed to providing customers with high-quality, innovative solutions for plastic pipe production . Our products are popular in domestic market and have been exported to Russia, Australia, Southeast Asia, Middle East, East Europe, Africa and other countries.