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29 Posts |
 Posted - 09/16/2009 : 12:00:55
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Hey all,
Saw this thread: You must be logged in to see this link. but thought it would be more appropriate to start a new one.
My question is: what are some reputable coin scale manufacturers? I've looked on froogle.com, but don't know anything about these companies.
I don't want to measure huge bags of copper pennies, mainly just individual coins. But it would also be nice to be able to weigh a roll here and there.
What do you use, and what do you think about your scales?
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cecropia_moth
Penny Pincher Member
USA
222 Posts |
Posted - 09/16/2009 : 15:56:36
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Tailwinds -
I purchased a Superior Balance Laser-300. The specs are 300g X 0.1g which is perfect for weighing your 1982s and individual rolls. Works great. Got the scale for about $15-20 from a local headshop. Probably could get a similar scale w/ the same or even better specs on here or perhaps eBay for a better price (and also avoid going into the headshop!!!). I seem to remember there was a member on here that specialized in and sold the digi scales...he had a real unique username.
For my 1982s I usually stack them on the scale one-by-one and keep going until I find a zinc...if they are copper it should go 3.1, 6.2, 9.3, 12.4, 15.5 and so on. Very efficient and accurate way to discern if your 82s are copper or zinc.
I also like to weigh my rolls. A full zinc roll will weigh approximately 126 gm; a full copper should weigh approximately 156 gm. I then calculate the "expected # of coppers" by using this formula...(roll weight minus 126) divided by 0.6 (the weight difference between a copper and a zinc). For an example if the roll weighs 135.0 gm it should have 15 coppers in it...9 gram differential divided by 0.6 equals 15 (a 30% copper roll). When I first started I made a table w/ roll weights and the corresponding # of coppers expected to be in the roll.
Cheers,
Jeff
SE Wisconsin |
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just carl
Penny Hoarding Member
USA
601 Posts |
Posted - 09/21/2009 : 07:55:25
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If your looking for accuracy, try google for jewlers scales. Some are really super accurate. If you have a jewlery store in your area you may want to check with them for a possible supplier.
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Carl |
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Reputable coin scale manufacturers
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