We can supply ferrite holding systems with center hole according to your drawing.

Holding Magnet is made of iron, steel with sintered ferrite, sintered NdFeB gluing together, All round base magnets are nickel or nickel/chrome plated for durability.
Sintered ferrite holding magnet can maintain their magnetic properties under extreme heat conditions, and are ideal for industrial requirements They are also be used to position or hold inspection equipment, indicator gauges, lamps, signs, antennas and other daily life.

Super Holding Magnets are special design with Heavy-duty retrieving function. They are made of plastic and magnets. With this design, they have good appearance and prevent potential injuring during working time. Please add the enclosed eyebolt on the top or side of the Holding Magnet and use to hold, lift and hang objects. Hundreds of uses are possible. NOTE: They are not fit for working in the water or heating environment.With mechanical properties similar to ceramics or porcelain, it means that only grinding techniques can be used to machine these products. Care is required during handling due to their brittle nature.

Standard and Common Holding Magnets can be plated with both Red painting and Black painting. A hole is built-in the magnets to attach the eyebolt for different application. Eyebolt and nut are included in each magnet. Holding and Retrieving magnets offer hundreds of commercial and industrial uses, including retrieving hand tools and other metal items from waterways, retrieving an outboard motor from the bottom of a lake, and sporting, household, industrial and commercial uses. Eyebolt and nuts included. They have high water resistance and heat resistance performance. Standard or Common Holding Magnets contain good quality of ceramic (ferrite) magnets and is capable of lifting up to 25LBS - 225LBS. Under normal use, permanent magnetism guaranteed.
If you are interested in our ferrite holding systems with center hole,please contact us.

Powerful Shallow Ferrite Pot Magnet Industrial with Countersunk Hole for securing

Powerful ferrite magnet with countersunk hole is bonded into an anti-corrosion soft steel cup,  used for securing,   attaching etc,  by fixing with flat head screw.

Detail specification is as following: