The number of round bales possible from any roll of netwrap is dependent on at least three things:

  • The diameter of the bale produced
  • The number of turns of net applied to the bale

    and - most importantly

  • The roll actually containing the length of net stated

The following table shows the approximate net use on varying sized bales in different crops. These figures are given as guide and should only be used as an aid to operator usage when baling.
CROP
BALE SIZE
No.of turns
Bales per roll 3150m XL
Bales per roll 3600m
Bales per roll 4200m
Hay

4’ diameter bale
5’ diameter bale

2 - 2.25
350 - 310
260 - 230
370 - 340
280 - 250
430 - 400
330 - 295
Silage
4’ diameter bale
2.25 - 2.75
310 - 255
340 - 275
400 - 330
Straw
5’ diameter bale
2 - 2.25
260 - 230
220 - 200
260 - 240
Many modern balers are equipped with a crop pre-cutting device which, when used in silage, can produce bales containing up to 20% more forage than a 'standard' bale. This significantly increases the bale weight and density, and requires a corresponding increase in the amount of net that is used to hold the bale securely. Consequently, it is recommended that at least an extra 0.5 turns of net is applied to chopped silage bales. Likewise, when baling high density straw, it may also be necessary to increase the number of turns by at least 0.5 per bale to ensure it remains securely wrapped.