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Steel wheels make possible the most efficient transportation system in the world

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Steel on steel

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One freight train can move 20 million pounds across the country in four days

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20 million

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This is the raw material for one of the most sophisticated new products modern technology has developed the wheel

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Worn out wheels and other scrap make a batch of new steam 20 tons to a heat

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Samples are taken continuously an optical spectrometer is used to monitor the exact chemical composition

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Wheels must carry heavier loads at higher speeds than ever before no easy job

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The ladle of molten steel is placed in a pressure vessel

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Air pressure forces the steel up a ceramic tube and into the graphite mold

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When the steel hits a probe at the top of a riser the air pressure is released and a stopper holds the steel in the mold

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The pressure pouring process is unique to Griffin wheel

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Bring the magnet down

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then

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Look at them into the black light

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Magnet glow solution its metallic particles and it's suspended in water

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It goes through a magnet glow is a chemical sprayed on it and they check it for cracks and defects in the wheel

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The magnet draws the particles towards any cracks and then they show up under the black line

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It shows up better under the black line where you can see it. We're under a normal light

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You wouldn't see a crack their magnetic particle inspected and then they're inspected by ultrasound

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You just use ultrasonic sound to look for discontinuities inside the wheel

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We pioneered the magna glow process and ultrasonic testing for wheel inspection

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When the wheel is completed I just tape it to get the size and the bore size stamp them and give it a quick once over

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It's just a last-minute check before it goes out on the dock to be shipped out

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Griffin wheel company is the largest manufacturer of railroad wheels in the world

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It has been growing with America's railroads for over a hundred years

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Oh

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