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Special Features and Suitable Applications of PL-A Magnetic Plate Lifters

Posted on July 8, 2019

PL-A series magnetic plate lifters are unique in their design and have different application from the commonly used NL-B series lifting magnets.

PL-A Lifting Magnet Bottom Poles

1. PL-A series lifting magnets have small magnetic field extension due to the small magnetic poles design. Thus, they are generally better than NL-B lifting magnets for thin plates. In other words, NL-B’s larger magnetic field would penetrate thick plate more fully than PL-A and grabs onto the plate better.
For easy and complete releasing of very thin plates, normally 12 gauges or thinner, we offer an additional lever attachment to effortlessly separate/release plates without holding and peeling them away from magnet.

2. PL-A is much more sensitive to air gap than NL-B lifting magnets. If the plate load has an oxidized layer, it creates an air gap between the lifting magnet’s bottom magnetic poles and the steel plate and results in decreased lifting capacity. Effect of air gap can be found at PL-660A and PL-1320A product specification pages.

3. PL-A is designed to have breakaway force 3 times of their maximum lifting capacity, i.e. 1980 lbs of breakaway for PL-660A and 3960 lbs for PL-1320A. OFF mode is achieved when the release handle is held at its highest position, either manually or by placing it on the Support (available at very low price). If the release lever is not held high when placing the magnet onto the load, there will be equivalent of 3960 lbs of impact directly onto the magnetic pole and potentially damage the magnet.