TECNOTER LQMI Series, Руководство пользователя, Страница: 13 / 38

2 TECHNICAL DESCRIPTION MAGNETS
2.5 FACTORS AFFECTING THE FORCE OF ATTRACTION OF MAGNETS
In order to optimize lifting of the load, the following factors must be taken into consideration:
Con t act s ur f ace
The greater the surface area with which the magnet comes into contact with the piece to be lifted, the greater the force with which the piece itself is lifted.
S u pe r fi c i al f i n i s h
A good surface of contact with the magnetic lifter considerably diminishes the gaps (the empty spaces between the magnet and materials) thus obtaining a
consistent force of magnetic anchorage.
M a te r i al
The lifting material must be a magnetic conductor. Material with the highest conductivity is mild steel (ferromagnetic), while the worst is aluminum
(diamagnetic).
Below are the reduction factors of the performance depending on the type of material:
MATERIAL TO LIFT REDUCTION FACTOR FOR THE FORCE OF ATTRACTION

LOW CARBON SOFT STEEL
1

STEEL CASTING
0.9

SILICON STEEL (min. 3%)
0.8

STEEL WITH HIGH CARBON AND/OR ALLOY
0.7

CAST IRON
0.45

NICKEL
0.2

STAINLESS STEEL, NON-MAGNETIC, BRASS, ALUMINUM
0
Division: Tecnoter srl Hyd. Magnet LQMI Ver. T Page 13/38 Rev: 1.0a_En –
15/07/2018