Coiler Application in Continuous Pipe Production System in Thailand

In Thailand, the demand for plastic pipe products continues to grow in construction, water supply, and agricultural irrigation projects. Many manufacturers operate continuous pipe production systems based on PVC and PE extrusion lines.

However, during high-speed production, a common issue appears at the downstream stage: pipe deformation during winding, which affects coil quality and subsequent packaging efficiency.

In this project, the customer reported instability during the coiling process in a continuous pipe production system.

The main issues included:

• Pipe deformation during winding due to unstable tension control
• Uneven coil formation affecting stacking and storage
• Mismatch between extrusion speed and winding speed
• Difficulties in maintaining consistent coil shape in continuous operation

These problems directly impacted downstream handling and warehouse efficiency.

The production line is designed as a continuous pipe production system, where extrusion, cooling, and coiling must operate in synchronized coordination.

In this system:

• The extruder delivers continuous pipe output
• The cooling tank stabilizes pipe dimensions
• The haul-off unit controls linear speed
• The coiler collects finished pipes into coils for packaging

Any imbalance in the coiling stage can affect the stability of the entire production line.

To address pipe deformation during winding, a synchronized automatic coiler system was implemented in the downstream section.

Key technical configurations include:

• PLC-based speed synchronization with extrusion line
• Adjustable tension control system for stable winding force
• Automatic coil formation to maintain consistent winding shape
• Coordinated operation with haul-off unit for stable pipe feeding

This configuration ensures that pipe winding follows extrusion output without mechanical stress accumulation.

After system adjustment and coiler integration, the production line achieved more stable winding behavior in continuous operation.

Observed improvements included:

• More stable coil formation during continuous production
• Reduced deformation issues during winding process
• Improved handling of finished pipe coils in packaging area
• Better coordination between extrusion and downstream coiling stages

The system demonstrated improved operational stability in long-duration production runs.

This case in Thailand shows that in a continuous pipe production system, pipe deformation during winding is closely related to tension control and system synchronization.

By integrating a PLC-controlled coiler system and optimizing coordination with the extrusion line, manufacturers can achieve more stable coil formation and smoother downstream packaging operations.

For modern plastic pipe production, the coiling stage is not only a packaging step, but also a key part of maintaining overall production stability.