Your Guide to Choosing the Best Magnets for Gift Boxes

Using magnetic closures in gift packaging can greatly enhance the box's sensory quality, offering users a sense of luxury. Magnets are widely utilized for items like jewelry, cosmetics, gifts, and toys. So, which is the best magnet for gift boxes?

What is a magnetic box?

Magnetic gift boxes are high-end gift boxes,  magnetic attraction design provides a more sophisticated opening and closing sensation. It also offers easy closure and prevents the box's contents from falling out.

What types of magnets are used in packaging?

The magnets commonly used in the packaging industry include round magnets, square magnets, bar magnets. 

Also below list some details to choose magnet thickness:

1. Choose according to the material of the gift box

• For thin cardboard/plastic box: 1~2mm (NdFeB) or 3~5mm (ferrite).

• For cardboard/wooden box:  2~3mm (NdFeB) or 5~8mm (ferrite).

• For heavy gift box (metal/thick wood):  3~5mm (NdFeB) or 8~10mm (ferrite).

Magnet for Gift Box

2. Choose according to the opening and closing method

• Frequent opening and closing (such as daily cosmetic boxes): Choose thinner magnets (1~2mm NdFeB) to reduce opening and closing resistance.

• Low-frequency opening and closing (such as holiday gift boxes): The magnet can be thickened (more than 3mm) to enhance the sealing.

3. Installation method and thickness adaptation

Embedded installation: Magnet thickness≤70% of the gift box material thickness (such as 5mm wood board embedded with 3mm magnet).

Wood Magnetic Box for Makeup

How to choose the magnetized direction for magnetic packing Box?

The magnetization in the thickness direction(for example D8*2 mm magnet, magnetized through 2mm, like L20*10*1 mm magnet, magnetized through 1 mm) of the magnet is one of the key factors that determine its magnetic performance, which directly affects the magnet's adsorption method, magnetic circuit design and actual application effect.

The magnetic poles are distributed on the two largest planes of the magnet (such as the upper and lower surfaces of the disc).

Adsorption characteristics: suitable for face-to-face adsorption (such as the adsorption of the gift box lid and the box body), concentrated magnetic force, and strong effective adsorption.

Example: The disc-shaped magnets (thickness 1~5mm) commonly used in gift boxes are mostly axially magnetized.

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Magnet on Box Schematic Diagram

How to choose the right magnet for magnetic boxes?

When should we choose neodymium magnets?

• High-end gifts: such as jewelry boxes, electronic equipment packaging (such as AirPods boxes), luxury gift boxes, etc., occasions where strong magnets need to be concealed.

• Heavy packaging: Need to absorb heavier metal accessories (such as metal nameplates, tool boxes).

• Ultra-thin design: Sensitive to thickness (such as mobile phone magnetic boxes, card gift boxes).

Magnet on Plastic Magnetic Box

When should we choose ferrite magnets?

• Low-cost mass products: such as paper gift boxes, promotional items, holiday gift packages, etc.

• Lightweight requirements: adsorption of thin metal sheets, ribbon buckles, greeting card seals, etc.

• Outdoor or humid environment: such as tea cans, cosmetic gift boxes (need to be moisture-proof).

Magnet on Wooden Gift Box

What products are packaging magnets mostly used for?

Wine boxes, gift boxes, tea boxes, leather goods, clothing, whiteboard buckles, mobile phone boxes, luggage, moon cake boxes and other products like below:

• Luxury packaging: Brands such as Louis Vuitton and Tiffany use hidden strong magnetic design, which opens and closes smoothly and silently, reflecting high-end texture.

• Beauty gift boxes: The magnetic flip cover design makes the consumer experience smoother and facilitates multiple use of products.

• Cultural and creative gifts: Book-style magnetic boxes add literary and artistic atmosphere, suitable for notebooks, postcards and other products.

What's best magnet for packaging factory?

As a good saying said, the most expensive is not the best, the most suitable is the best. Below is some points for packaging factory to choose magnet for box:

About material:

Neodymium magnet  sheet (strong magnets): The strongest magnetism, suitable for high-end gift boxes that need to be firmly closed. Due to the high performance, when choose neodymium magnet the size will be smaller then other material. Also neodymium usually has a coating, which is more beautiful then others.

Ferrite magnet: Economical and practical, suitable for ordinary packaging, moderate magnetism.

Flexible magnetic sheet: Can be cut into any shape, suitable for special gift boxes, but the magnetism is weaker.

Toy Magnetic Box

About shape:

Round, square magnets: standard style, suitable for most gift boxes.

Thin magnetic sheet: suit for the magnetic gift boxes which need small magnetism

Special-shaped magnets (heart-shaped, star-shaped, etc.): Add fun, suitable for holiday gift boxes or wedding packaging.

About size: 

The size of packaging magnets is mostly thin, and the common thickness sizes are 1 mm, 1.2 mm, 1.5 mm, 2 mm and other specifications. The specific size needs to be determined according to the type of each packaging product.

1mm Thin Rectangle Magnet

About price:

Most customers pursue cost-effectiveness. As long as the suction force meets the requirements, they generally choose cheap supply channels. Except price, the quantity on-time delivery, yield rate and magnetic strength should also be paid attention to.

About supplier capacity: 

The demand for packaging magnets is large and the unit price is low, so suppliers need to have sufficient production capacity to meet the supply. High-quality suppliers can guarantee delivery time, delivery speed, product quality and good after-sales service.

Also the run ability on the machine which fixes the magnets are important.

How to check the magnetic strength?

1. Gaussmeter (Teslameter)

Principle: Directly measure the magnetic induction intensity on the surface of the magnet (unit: Gauss Gs or Tesla T, 1T=10,000Gs).

Steps:

-Place the probe of the Gaussmeter vertically close to the surface of the magnet (make sure it is consistent with the magnetization direction).

-Read the peak magnetic induction intensity (such as NdFeB is usually 1,000~1,500mT, ferrite is 200~400mT).

Note:

The probe distance needs to be fixed during measurement (usually within 1mm).

Measure several points (the edge and center of the magnet may be different).

Gauss Meter Testing

2. Fluxmeter (measuring magnetic flux)

Principle: measure the total magnetic flux of the magnet (unit: Maxwell Mx or Weber Wb), reflecting the overall magnetism.

Steps:

-Place the magnet in the Helmholtz coil of the fluxmeter.

-Quickly pull out the magnet and read the magnetic flux value.

Applicable scenarios: factory batch inspection or high-precision requirements.

3. Magnet Tension Meter (professional adsorption force test)

Principle: directly measure the pulling force required to separate the magnet from the iron plate (unit: N or kgf).

Steps:

-Adsorb the magnet on a standard iron plate (such as 10mm thick low-carbon steel).

-Use the tensile meter to pull vertically and record the maximum separation force.

Data reference:

NdFeB N35: about 6kg/cm²; N52: about 9kg/cm².

Ferrite Y30: about 1kg/cm².

Magnet Tension Meter

If want to know which one suit for your custom magnetic closure boxes, please contact us for more information. 

Also below list the some common sizes in N35 for magnetic boxes use.

FAQ

Q:How to get the samples?

A:Contact us through our website, and say I want samples, our sales will contact you.

Q:What's the lead time for samples and formal order?

A:For sample lead time is 7-10 days, formal order usually need 25-30 days. Shipping day is 3-7 days by express, 35-50 days by sea.

Q:Where can buy magnets for packaging?

A: You can contact us for inquiring directly through our website, our sales will contact you in 12 hours.

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