Production calculation for circular knitting machine

Problem:Calculate the production for a circular knitting machine whith the given data

Feeder=84

Diameter=30 inch

Gauge=24/inch

Cylinder r.p.m=18

Yarn count=30Ne

Efficiency=90%

Stitch length=2 mm

Solution:

Length of yarn=(3.14×30× 24× 2 ×84× 18× 60 ×24 ×90)/(1000 ×100)

                          =8860310.32 meter

                          =8860.31 km

Now, 20Ne=Ne×tex=590.6

   So,tex=590.6/20

             =29.58

Again,

         1 km yarn weight =29.53 gm

8860.31 km yarn weight=(29.53× 8860.31)

                                             =261.64 kg