make / manufacturer: Hitachi model name / number: R-20 size / dimensions: 49x44x45
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This is a permanent magnet with a 1 inch gap between two iron poles. The magnetic field strength in the gap is 1.4 Tesla (14,125 Gauss). The diameter of the poles are ~13 inches, tapering to ~5 inches at the gap. The two poles are held apart from each other by a large iron "yoke". The dimensions of the yoke alone (blue in the picture) are 45"x32"x18". The magnet was originally part of a R-20 NMR spectrometer made in 1967. It is VERY heavy, but exact weight unknown. Free if you can take it away.
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