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Circular Knitting Machine Gauges
Circular knitting machines are generally gauged on the English System(E) of needles per inch(npi).
Normally gauges range from E7 to E42, which means 7 or 42 needles per inch respectively. E7 is termed “coarse gauge” and “E42” was called “Fine gauge”.
While Metric system, which is based on the distance in tenths of a millimeter from the centre of one needle to the next, is rarely used for its complicacy. It’s a direct evaluation, with a higher gauge number means a coarser gauge, quite opposite to English system.
Here below is conversion between English System(E) to Metric System(T)
| E (needles per inch) | T/mm | E(needles per inch) | T/mm |
| 50 | 0.508 | 16 | 1.588 |
| 48 | 0.529 | 15 | 1.693 |
| 46 | 0.552 | 14 | 1.814 |
| 44 | 0.577 | 12 | 2.117 |
| 42 | 0.605 | 11 | 2.309 |
| 40 | 0.635 | 10 | 2.540 |
| 38 | 0.668 | 9 | 2.822 |
| 36 | 0.706 | 8 | 3.175 |
| 34 | 0.747 | 7 | 3.629 |
| 32 | 0.794 | 6 | 4.233 |
| 30 | 0.847 | 5 | 5.080 |
| 28 | 0.907 | 4.5 | 5.644 |
| 26 | 0.977 | 4 | 6.350 |
| 24 | 1.058 | 3.5 | 7.257 |
| 22 | 1.154 | 3 | 8.467 |
| 21 | 1.210 | 2.5 | 10.160 |
| 20 | 1.270 | 2 | 12.700 |
| 19 | 1.337 | 1.5 | 16.933 |
| 18 | 1.411 | 1 | 25.400 |