World of Cans
World of Cans

Necker Overview

The Necker is responsible for forming the neck and flange of the can while ensuring precision and quality through multi-stage operations.


Feeding Cans into the Necker

Cans are fed into the Necker using Air Tunnel Track, which moves them efficiently and in single file. This controlled feeding ensures a consistent flow of cans into the machine.


The Multi-Stage Necking Process

Inside the Necker, cans pass through multiple stages, with each stage performing a specific operation. This gradual, step-by-step process ensures precision and prevents damage to the can.


Types of Tooling in the Necker

The Necker utilizes three primary types of tooling to shape the can:

1) Necking Dies and Knockouts:
These tools form the neck of the can, creating the familiar tapered shape that allows lids to be attached securely.


2) Flanger:
The Flanger forms the flange at the top edge of the can. This flange is essential for the double-seaming process during filling and sealing.


3) Base Reformer:
The Base Reformer sets the final profile of the can's dome, ensuring structural integrity and pressure resistance.


Quality Control and Final Steps

Inspection systems are integrated into the Necker to detect defects such as improper neck formation or flange inconsistencies. Defective cans are automatically rejected to maintain product quality. After passing through the Necker, cans proceed to the Palletizer, where they are prepared for shipping.


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