Non Paper Penalty
Commercial settlement practices penalize waste paper suppliers when incoming bales contain non-repulpable high-density contaminants. Applying a heavy reject deduction reduces the payable net weight of recovered paper shipments based on the weight of sand and stone found during inspection. Paper mills processing recovered paper bales require clean fiber sources to protect hydrapulpers and screening equipment from mechanical damage.
When bale audit procedures uncover excessive non-paper materials, receiving departments calculate a weight reduction to offset disposal costs and unearned fiber payments.
Physical Separation Process
Quality inspectors open designated sample bales from incoming trucks and pass the material through coarse screens or manual sorting tables. Dense non-paper items like iron bolts, concrete fragments, dirt accumulations and heavy plastics are separated and weighed on calibrated scales. The mill calculates the percentage ratio of heavy reject mass to total sample mass and applies that percentage across the entire delivery lot.
Advanced receiving stations utilize automatic magnetic separators and heavy-density cleaner traps to capture non-fibrous junk continuously during pulping operations.
Settlement Adjustment Threshold
Contracts specify an allowable tolerance limit, typically set at zero point five percent by weight for clean corrugated scrap. Deductions apply directly to the weighbridge net tonnage once contamination exceeds this contract boundary.