Magnetic Closure Strength Engineering

Oct 08, 2026

Packaging Engineering · Engineering Case

Magnetic Closure Strength Engineering for Electronic Cigarette Packaging

A project-based case study showing the packaging requirement, the development decision, the quality-control focus and the reported project result.

Project Overview

Application	Electronic cigarette packaging
Box Structure	Book-style magnetic rigid box
Board	1200gsm rigid board
Outer Paper	128g specialty paper
Insert	Black flocked EVA
Finishing	Full color, matte lamination, spot UV
Main Concern	Closure was too weak
Improvement	Magnets increased from 2 to 4; embedding depth adjusted
Result	Passed client test; repeat order

The Challenge

The original magnetic closure did not provide the required closing performance.

Structural & Material Solution

The magnetic system was revised from 2 magnets to 4 magnets and the embedding depth was adjusted.

Key Improvement

The corrective action changed magnet quantity and placement rather than treating the problem as a generic need for a stronger magnet.

Quality Control

Checks focused on magnet positioning, closure behavior, lid alignment, EVA fit and finishing.

GooinPack's current packaging workflow places quality control after approved requirements, sampling and production. Current QC information covers materials, printing, dimensions, structure, finishing, insert fit, assembly and final inspection. View Packaging Quality Control.

Project Result

Passed client test; repeat order

Final Packaging Configuration

Application	Electronic cigarette packaging
Box Structure	Book-style magnetic rigid box
Board	1200gsm rigid board
Outer Paper	128g specialty paper
Insert	Black flocked EVA
Finishing	Full color, matte lamination, spot UV
Main Concern	Closure was too weak
Improvement	Magnets increased from 2 to 4; embedding depth adjusted
Result	Passed client test; repeat order

Related Packaging Engineering

This case should be read together with the technical resources below. The case documents the project; the engineering resources explain the broader manufacturing principle. How to Choose the Right Magnet for a Magnetic Box How to Test Magnetic Box Strength Why More Brands Choose Magnetic Packaging

Related GooinPack Capabilities

Custom Rigid Boxes · Custom Magnetic Boxes · Custom Packaging Process · Request a Packaging Quote

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Project-specific dimensions, materials, MOQ, lead time, pricing and documentation should be confirmed against the approved quotation and production specification. This case study records the project information stated above and should not be interpreted as a universal packaging standard.