Single jersey circular knitting machine production calculation

Question- A single jersey circular knitting machine of 30-inch diameter, 24 gauge with 96 feeders is running at 20 rpm. If the yarn count is 24 and the stitch's length is 2.8mm then find out the production in kg per hour.

Ans:

Given that,

Diameter = 30"
Gauge = 24
Now needle = M/c dia * M/c gauge*π

= 30*24*301416

= 2262

Machine RPM= 20

Yarn count = 24

Stitch length = 2.8 mm

We know,

RPM x No. of needle x No. of feeder x stitch length (mm)

Production = ………………………………….. .......................................................

840 x Yarn Count

20 x 2262 x 96 x 2.8 x 1.09 x 60

Production = ………………………………….. ....................................................... Kg/hr

1000 x 840 x 24 x 2.204

= 17.8989 kg/hr ( ans )

If efficiency is 85% then production will be 15.21 kg/hr.

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