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Paper reel measurements

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LINEAR METRES ON REEL

Length = W x 1000 / (Gsm x Rwd)
Length = 3.1416 (D² – d²) / (4000 x t)

WWeight of reel in kg
Gsmg/m² of paper
RwdWidth of reels in m
DExternal diameter of reel in mm                                    
dExternal diameter of core in mm
tThickness of paper in mm 

WEIGHT IN KG OF A REEL FROM DIAMETER

Weight = ((D² – d²) x 3.1416 x Rwd / 4) x Rg

Dexternal diameter of reel in m
dexternal diameter of core in m Rwd = Width of reels in m
RgSpecific weight of the paper in kg/m³

WEIGHT IN KG OF A REEL FROM LENGTH OF SHEET

Weight = L x Rwd x Gsm / 1000

LLength of sheet in metres
RwdWidth of reels in metres                                                    
Gsmg/m² of paper
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