Vacuum Sizing Production Line

Product parameters:

90 production line: φ90-φ655

120 production line: φ315-φ1155

150 production line:

150（33:1）φ655-φ1380

150（36:1）φ850-φ1680

150（36:1）φ1054-φ2000

Complete equipment

Vacuum sizing production lines are typically equipped with complete auxiliary equipment, such as raw material mixing equipment, vacuum feeding equipment, raw material drying equipment, spray cooling tanks, crawler-type traction machines, planetary cutting machines, pipe stacking racks, etc. Each piece of equipment works together to form a complete and efficient production system. This supporting equipment ensures the smooth and efficient operation of the entire production process from raw material input to finished pipe output, improving production efficiency, reducing manual intervention, and ensuring the stability of product quality.

High-precision size control

Vacuum sizing production lines achieve high-precision outer diameter sizing by creating a vacuum between the pipe blank and the sizing die, causing the hot plastic pipe to tightly adhere to the inner wall of the sizing die under negative pressure. This method ensures extremely high dimensional accuracy and minimal deviation in the pipe. For example, when producing PE pipes, the diameter error can be controlled within a very small range, meeting the stringent dimensional accuracy requirements of applications such as municipal water supply and gas transmission.

Excellent surface quality

During the vacuum sizing process, the pipe surface is in uniform contact with the inner wall of the sizing die. In a vacuum environment, the pipe surface is not disturbed by impurities or bubbles, resulting in an extremely smooth pipe surface with low roughness. For materials such as HDPE and PP, after processing by a vacuum sizing production line, the surface roughness can reach an extremely low level. This not only helps reduce the resistance during fluid transport but also reduces the possibility of scaling inside the pipe, extending its service life.

Excellent wall thickness uniformity

The production line uses vacuum suction to uniformly act on the pipe blank, ensuring uniform force distribution during sizing and thus guaranteeing uniform wall thickness. For example, in the production of large-diameter, thick-walled pipes, the wall thickness deviation can be controlled within a very small range, avoiding the problem of weak local strength due to uneven wall thickness and greatly improving the overall mechanical properties and pressure resistance of the pipe.

High production stability

Vacuum sizing production lines are usually equipped with advanced automated control systems, such as PLC programmable control. This system can accurately control the operation and timing of the production line, with a user-friendly human-machine interface. Operators can conveniently set and display all process parameters, such as extruder temperature, vacuum degree, and traction speed, via a touch screen. This precise control ensures that various process parameters remain stable during long-term operation, thus guaranteeing the consistency and stability of pipe quality.

Wide range of applications

Vacuum sizing production lines can handle common plastic materials such as PE and PP, as well as some special engineering plastics. They can produce various pipes ranging from small to extra-large diameters and from thin-walled to thick-walled, meeting the diverse needs of various industries. Main application areas include the construction industry, municipal engineering, gas transmission, and environmental protection engineering.