How to measure weight of offset plate?

[printPlant]

Please anybody tell me the formula of weight measuring of the offset plate.
alley

 

[Al Ferrari]

Why do you need a formula? Just roll or fold one up and weigh it on a small scale like a postage scale.

Al

 

[Stephen Marsh]

As Al suggested, or -

Formula = pack weight / plate count (The carton should have a total weight noted for shipping, divide this by the number of plates in the box... not exact due to slip sheets and packing materials etc., however it may be close enough).


Stephen Marsh

 

[Al Ferrari]

The original post opened with "How to measure...", and I have already given you a method for that.

For the formula: use length x width x height (thickness or caliper) x weight/unit volume. You will need to make sure that the units of distance are consistent with the units of volume.

Al

 

[printPlant]

thanks for reply
one more question i have. if price of plates 3$ per square meter. how to get one plate price and how to measure plate in square meter. please define with formula like Al-Ferrari's formula.

 

[KevinC@EFI]

To get the area of one plate, simply multiple the width x length of the plate. Multiple your per-m2 price by that result, and you'll have the price per plate.

Example: plate size is 605x745mm (i.e. 0.605 x 0.745 meters), area is 0.605x0.745 = 0.451 m2.

$3 x 0.451 = $1.35 per plate.

Weight is just a bit more difficult. Note that the thickness (gauge) noted on the box of the plate isn't an exact measurement. The actual thickness is likely a little thinner - due both to the metal being thinner to begin with, and that some of the metal is removed in the graining process. Typically 0.15mm plates are about 0.14mm, 0.3mm plates are about 0.275mm, and 0.4mm plates are about 0.38mm.

For 0.3mm plates, an approximate value is 750g per m2. If you need exact, multiply the plate area (as above) by the thickness (above), by the density of aluminum - which is 2.7g per cm3. You'll have to ensure you're using consistent units of course... multiple/divide by 1000 as needed.

Kevin.

 

[VladCanada]

Looking at new Kevin's nick we understand - Kodak went down and we have to forget that name

 

[KevinC@EFI]

Lol... no, I just figured that if they didn't have to pay my salary any more it might help them out of Ch. 11.

 

[printPlant]

To get the area of one plate, simply multiple the width x length of the plate. Multiple your per-m2 price by that result, and you'll have the price per plate.

Example: plate size is 605x745mm (i.e. 0.605 x 0.745 meters), area is 0.605x0.745 = 0.451 m2.

$3 x 0.451 = $1.35 per plate.

Weight is just a bit more difficult. Note that the thickness (gauge) noted on the box of the plate isn't an exact measurement. The actual thickness is likely a little thinner - due both to the metal being thinner to begin with, and that some of the metal is removed in the graining process. Typically 0.15mm plates are about 0.14mm, 0.3mm plates are about 0.275mm, and 0.4mm plates are about 0.38mm.

For 0.3mm plates, an approximate value is 750g per m2. If you need exact, multiply the plate area (as above) by the thickness (above), by the density of aluminum - which is 2.7g per cm3. You'll have to ensure you're using consistent units of course... multiple/divide by 1000 as needed.

Kevin.

Hi Kevin.

Is it correct formula please conform me:
510mm x 645mm x 3$ / 1000000 = 0.91$ per plate

 

[KevinC@EFI]

The formula you wrote is correct, but I get $0.987/plate when I do that exact same calculation though.

 

[printPlant]

The formula you wrote is correct, but I get $0.987/plate when I do that exact same calculation though.

thanks, you are right i calculate again and get the same value which you had quoted.
please give me the "grams" formula.

 

[KevinC@EFI]

51.0 x 64.5 * 0.014 = 46.05 cm3 of aluminum (all units here are converted to cm)

46.05cm3 * 2.7g/cm3 = 124.3g per plate

This assumes that your plate is "0.15mm" thickness (0.14mm in reality though).

Kevin.

 

[printPlant]

51.0 x 64.5 * 0.014 = 46.05 cm3 of aluminum (all units here are converted to cm)

46.05cm3 * 2.7g/cm3 = 124.3g per plate

This assumes that your plate is "0.15mm" thickness (0.14mm in reality though).

Kevin.

please also conform this formula:

510 x 645 x 0.14 x 2.7 / 1000 = 124.35g per plate weight

 

[KevinC@EFI]

Yes, that looks correct to me. Good luck!

out of curiosity - what are you using/needing this for? Scrap metal value calculations?

 

[printPlant]

Yes, that looks correct to me. Good luck!

out of curiosity - what are you using/needing this for? Scrap metal value calculations?

Thanks for your attention. This was only for knowledge.
i have got good knowledge from you today.... thanks again..