Bale Wrap Pre-Stretch Calculator | Baleguard

Users cannot tell whether wrapper tension is too high, too low, or inside the expected range.

Why this calculator matters

Pre-stretch is an industry term used in film specs and setup instructions, so the page now leads with that search wording.

Inputs

• Initial mark
• After one revolution
• Machine target
• Unwind force

Outputs

• Actual stretch
• Target range
• Likely issue

Benchmarks

• 10 in to 16 in equals 60% stretch.
• Many machines are checked around 55% plus or minus 10%.