Our company ShanDong Finer Lifting Tools co.,LTD produce Permanent sucker professionally for more than 20 years. And sold sucker all over the world.
The according to the raw material, the safe factor have follows : 2.0 times factor, 2.5 times safe factor, 3.0 times, 3.5 times , 4.0 times factor. The bigger safe factory times the better of the quality. And the safe factor if bigger than 3.5 times , the quality will be very nice, and will be very safe when working. So, it is very cheaper if the permanent magnetic sucker safe factor is 2.0 or 2.5 times.
The we have 30 kg capacity, one person can hold it easily and easy to use.
ShanDong Finer Lifting Tools co.,LTD