Logged a batch with crushed top corners at 07:15 on Dock C; handheld gauge read 420 N strap tension though our SOP is 250–300… If you’ve made the PP-to-PET switch, are you documenting with pre-cut band photos and measured corner deformation before release, or is there a cleaner way to keep claims compliant without a load-restraint nonconformance?
We killed the corner crush by locking the PET tensioner at 280 N with a torque‑limiter seal and switching to a 2 mm foam corner cap; for compliance, we attach one photo with a 2 mm ‘go/no-go’ shim against the top edge plus the tool’s calibration sticker, instead of pre-cut band shots. Are your operators on a battery tool you can pin-lock, or still using hand ratchets that let them ‘hero pull’ past the 250–300 N window?
@cparson78’s 280 N lock is solid, but I’d set acceptance by PET stretch to avoid gauge drift — “mark 100 mm, tension to 106–108 mm, dwell 3 min, confirm ≥105 mm,” then photo the marks with a ruler and a corner shot with a 5 mm shim. It keeps claims tidy and reflects PET relaxing like a seatbelt after you settle in; would a 6–8% window work with your Dock C mix?
Shifting the buckle 60–80 mm off the top edge cut our corner crush more than tension tweaks — @nelsong24’s stretch window is solid, and we add a 90‑sec settle, then photo the Sharpie 100→107 mm mark plus the offset buckle; no gauge value on the traveler. Would Ops let you move the buckle off the corner?
We solved the upper-corner damage by setting the PET tool to ramp to 280 N over about 8 s and using strap with printed 100 mm marks — one photo at 60 s showing 104–106 mm kept claims clean, no extra ‘pre-cut band photos’; @nelsong24, can you turn on ramp on Dock C?
We moved to a 3D‑printed corner go/no‑go (a feeler gauge for cartons) and record ‘≤2 mm crush at 60 s’ with tool ID instead of band photos; it’s faster and kept claims clean, @cparson78. Do you have a weekly check on the handheld against a spring test block to catch drift?