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Vintage Kerr Centrifico help

Hello! This is my first post here on ganoskin, I’ve read through posts for years, but have a recent situation that convinced me to join the community.

I work for a jewelry manufacturer and have recently decided to take on their castings at me home shop. I’ve purchased a vaccum, investment, neycraft oven and controller, and lastly I bought an old Kerr Centrifico from a jeweler friend. It looks to be in great shape, but after inspecting in closer detail, it looks like the max flask height I can fit is just shy of 2.5" - 3". This is not going to work… our normal flasks we use are 4 inches.

I looked around to see if I could possibly just get a longer arm, but haven’t been able to find anything. So far my only solution is to buy a whole new centrifugal arm. After buying all the other required equipment, I cant afford the $500+ for a new centrifuge. Over the years I’ve had to DIY and get really creative with my equipment to make things work. There has to be a way to extend the arm 1" without paying $500+

If anyone has ideas, I would love to hear them!

Hello Jakebrunner, I believe you have one of the Kerr Dental Machines…You may wish to contact Richard Lucas at LUCAS DENTAL CO. we manufacture a line of Centrifugal Casting Machines for the Jewelry Industry. We are located in Bohemia, Long Island, NY, phone Mon - Fri 9:00am - 3:00pm 1-(800)-332-5573 or better yet by Email: or you can see what we have if you go to our website: to see our products. Our Jewelry machines can take a Flask up to 3-1/2" dia. x 5" high. Our #750 Giant Long Arm with a Flask Capacity up to 3-1/2" dia. x 5" high will fit your Kerr Base. Email us for additional information. Regards, Richard Lucas

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