Technical Overview: Structural Composition of a Standard Coiler for Extrusion Lines

In plastic extrusion operations, the coiler plays a key role in winding pipes, tubes, or profiles into organized coils for handling and storage. A typical coiler is composed of several mechanical and control units designed to support stable and consistent winding performance.

1. Frame Structure

The frame provides the main mechanical support for the entire system. It is commonly made of welded steel to ensure rigidity and operational stability. The frame serves as the mounting base for motors, reels, traverse systems, and control modules.

2. Winding Arms / Reels

The winding unit forms the product coil. Depending on the production line requirements, coilers may utilize:

• Single or double reels for uninterrupted winding

• Expandable reels for adjustable coil diameters

• Fixed or adjustable arms to match different pipe sizes

These configurations help accommodate various extrusion applications.

3. Traverse Unit

The traverse system ensures even distribution of the product during winding. It typically includes:

• A motor-driven guide mechanism

• Rack, screw, or belt transmission components

• A programmable module that synchronizes traverse movement with line speed

Accurate traverse control supports uniform coil formation.

4. Tension Control System

Tension control components regulate the pulling force applied to the product. Common systems include:

• Mechanical friction adjusters

• Torque-controlled motors

• Pneumatic or automated tension devices

Stable tension prevents product stretching or deformation during the winding process.

5. Drive Motors

Drive motors rotate the reels at controlled speeds. Selection varies based on production specifications:

• Standard AC motors

• Servo motors for higher precision and synchronization

The drive system works together with the haul-off unit to maintain consistent winding performance.

6. Electrical Control System

The coiler integrates with the production line through a dedicated electrical and control unit, typically featuring:

• PLC or microcontroller-based control

• Speed synchronization interface

• Parameter adjustment interface

• Safety interlocks and emergency stop circuits

These systems enable operators to configure winding speed, traverse frequency, and coil length efficiently.

7. Optional Automation Features

Depending on operational needs, coilers may include optional features such as:

• Automatic pipe cutting

• Automatic reel change (double-reel systems)

• Length-measuring devices

• Pneumatic lifting or coil-support mechanisms

These additions aim to improve workflow convenience and handling safety.

A well-designed coiler is essential for consistent winding quality and stable downstream handling in extrusion lines. Langbo Machinery continues to refine the structural design and control integration of its coilers to offer reliable performance across various pipe and tube production applications. With a focus on practical engineering and stable operation, the company provides solutions that align with the everyday needs of extrusion manufacturers.