To compare knife roller gin with saw gin, sankar 4 cotton was taken and ginned both in roller gin and saw gin. The Blow room and carding performance of the Roller ginned cotton and saw Ginned cotton is given in the table:
|
| Roller gin | Saw gin |
| total trash | 4.6 | 3.5 |
| Trash % in lap | 1,0 | 1.1 |
| B/R Cleaning Efficiency * | 78.0 | 68.0 |
| Card Cleaning Efficiency % | 82.0 | 83.0 |
| Trash % in Sliver | 0. 17 | 0.19 |
| B/R Waste % | 4.7 | 4.1 |
| Card Waste % | 4.1 | 3.6 |
| Seed Coats % | 2.2 | 2.5 |
| Sand & Dust % | 1.6 | 0.3 |
| Production (lbs/hr.) in ginning | 120 | 400 |
| Power requirement in ginning | 2 HP | 7HP |