For friends who work in a neodymium iron boron magnet manufacturer, the price of the magnet is calculated every day. When calculating the price, the weight of each shape of neodymium iron boron must be calculated. However, for those who are not professionals, calculating the weight of each shape is quite difficult. The following editor provides common weight calculation formulas for several neodymium iron boron magnet shapes for your reference, hoping to be helpful to you.

Square neodymium iron boron

1、 Square neodymium iron boron weight

Calculation method: Volume * Density=Length * Width * Height * Density/1000, the unit of calculation is g, which is the weight of a single product. If the total weight is calculated, the result can be directly multiplied by the quantity.

Example: Square neodymium iron boron size F25 * 10 * 2mm, calculated weight: 25 * 10 * 2 * 7.5/1000 ≈ 3.75g.

2、 Formula for calculating the weight of neodymium iron boron discs

Calculation method: Volume * Density/1000=Bottom area of cylinder * Height of cylinder * Density/1000=π * r * r * h* ρ/ 1000 (π is the Pi (3.14), r is the radius of the cylinder bottom, h is the cylinder height, ρ Is the density of the cylindrical material.

Example: Neodymium iron boron disc 20 * 7mm [diameter 20MM * thickness 7MM], calculated weight: 3.14 * 10 * 10 * 7 * 7.5/1000 ≈ 16.53g

3、 Ring neodymium iron boron weight

The weight of a circular magnet is quite special, but the principle is the same, which is to multiply the volume by the weight. Please refer to the introduction below for details.

The ring has an inner diameter and an outer diameter. Let the outer radius of the ring be R and the inner radius be r. Ring area=large circle area - small circle area=3.14 * R * R-3.14 * r * r=3.14 * (R-r)

Calculation method: Ring volume * thickness * density/1000=3.14 × (R-r) * thickness * density/1000.

For example, the weight of a circular ring with an outer diameter of 16mm, an inner diameter of 8mm, and a thickness of 4mm is 3.14 (8 * 8-4 * 4) * 4 * 7.5/1000=2.23g.

The above is the calculation method for the weight of neodymium iron boron square, circular, and circular rings. In practice, it is relatively simple. Just remember the formula, how to calculate the weight of neodymium iron boron tiles? As for the calculation of neodymium iron boron tile magnets, it is quite complex, but we will provide calculation formulas in later articles.