Woven sack (raffia) tape plant

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Woven Sack (Raffia)  - Raffia Plant Formula &calculations 



Tape plant like raffia tape stretching plant is an ideal plastic extrusion machinery for producing chemical bags, cement bags, rice bags, lamination fabrics and tarpaulin. This plastic extrusion equipment is used in high and quality generating plastic process to form a continuous profile from plastic raw material
BELOW ARE THE FORMULAS USED IN THE PROCESSING : 


Spacer Size (mm) =  (Stretching Ratio) ^1/2 x Width of Tape
Stretching Ratio = ( Spacer Size/Tape Width )^2
Stretching Ratio = Stretching Godet Speed(Second godet) / holding Godet Speed(first godet)
Production Kg/hr = Denier x Final Line Speed x No of Tapes x 60 / (9000x1000)
Production Kg/hr = Denier x Final Line Speed x No of Tapes/ 150000
Elongation % = Tape Final Length - Initial Length x 100 / Final Length
Tape Thickness Stretched = denier / (9000 x Tape Width x Density)
Un-streched Tape Thickness = (Stretch Ratio )^1/2 x stretched Tape Thickness
Denier Setting Formula = Holding Speed x Actual Denier / Required Denier
Relaxation Speed = Stretching Speed - Annealing Speed x 100 / Stretching Speed
Screw Speed Formula = Motor Speed x Motor Pulley  Diameter / ( Gear Ratio x Gera Box Pulley Diameter)
Useful Width ( Flat Film) = Film Width - ( 2 x Spacer size)
Main Motor RPM = (Gear Ratio X Screw RPM X Gear Box Pulley Dia)/(Motor Pulley Dia.)

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