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This listing includes one piece of round base magnet which is made of a ceramic ring magnet and a chrome plated steel cup. The ceramic ring magnet is bonded inside of the cup with adhesives. This arrangement greatly increases the holding power of the magnet and at the same time provides the protection to the magnet greatly increasing its durability.
The holding power of this magnetic assembly is about 210 LBS with a direct contact with the steel. The outer diameter of the magnet is 4.9" (125 mm). The mounting hole in the center is 0.51" (12.95mm) which allows a 0.5" screw pass through. The total thickness of the assembly is 0.5" (12.7mm).
The applications of this cup magnet include magnetic holding, lifting, antenna Mounting, positioning, retrieving and much more.
There are 1 review(s) for 210 LB Holding Power Ceramic Cup Magnet 4.9" Magnetic Round Base RB90
by Steve – 23rd Feb 2013
My wife's jeep wrangler has a fiberglass roof. She needed a good magnet to hold her strobe light on. She uses it on a rural mail route. The magnet is on the inside of the roof. The light stays in place , even on rough roads.