Bale & Wrapping From the baler

Bale Diameter m

The finished diameter the baler is set to.

Wraps per Bale turns

Full turns of net the baler applies. Set it from the baler manual and the crop; a fraction counts.

Net Stretch on Application %

The net is pulled on under tension and covers more bale than its own length. Use the net maker's figure; enter 0 to count unstretched.

Rolls & Season From the roll label and the plan

Net Roll Length m

Bales to Wrap bales

Rolls Already in Store rolls

Full rolls on hand. The shortfall is what to buy.

Net per Bale

— m

Bale circumference times the wraps, less the stretch

Usage

Bale Circumference: — m
Net per Bale with No Stretch: — m
Bales per Roll: — bales
Net for the Season: — m
Rolls Needed: — rolls
Rolls to Buy: — rolls
Last Roll Used: — %
Net Left on the Last Roll: — m

The wrap count is the baler's setting, not a property of the net: more turns for dry, springy crops and long hauls, fewer for silage that is film-wrapped straight after. Stretch is the net maker's figure for the tension the baler applies; at 0 the result is the net the bale would take if it were laid on without tension, which is the upper bound. Bale diameter is the finished diameter, so a baler set small or a chamber not filled uses less net per bale than this says. Bales per roll is rounded down because a bale cannot be bound with the tail end of one roll and the start of the next without a change on the machine. **This is a quantity take-off from the baler settings; it does not choose the wrap count for the crop.**

Bale Net Wrap per Bale, Bales per Roll & Rolls per Season — free, with the formula and a worked example, at Textile School.