_x000D_ _x000D_ Non-standard can be custom,Minimum thickness can be 4MM. Notes: We often change the lables for convenient production! Please do notcare about it! Precautions Electromagnets must meet the following conditions to achieve maximum suction : 1The object to be sucked must have a good magnetic permeability . 2 Proper use of power supply, rated voltage. 3 The object to be sucked must be flat and clean . 4 The object to be sucked must be greater than or equal to thesurface of the magnet ( For example: the magnet is 20*15 mm , so the surface area is S= r = 10 mm so the object to be sucked must be greater than or equal to 10 mm ) 5 The object to be sucked must be greater than 8mm .(If the thickness decreases, the suction decreases) 6 The object to be sucked must be close , the middle can't be interspersed with objects or gaps Contrary to any conditions, suction will be reduced, not the maximum suction. Please pay attention when you want to buy. Refused to dispute, at your own risk. _x000D_ _x000D_ _x000D_ If you need other model , please click on the model in the table Model D(mm) D(mm) H(mm) M Power(W) Suction(KG) 10/10 10 4 10 2 1 0.3 Click to buy 13/27 13 5 27 3 1 1 Click to buy 13/30 13 5 30 3 1 1 Click to buy 20/15 20 8 15 4 2 2.5 Click to buy 25/11 25 10 11 4 2 5 Click to buy 25/20 25 12 20 4 2 5 Click to buy 30/22 30 12 22 4 3 10 Click to buy 30/25 30 12 25 4 3