Single-blank wrap-around packing can cut board cost 25–30% and improve stacking strength. This article compares both architectures over a five-year total-cost horizon.
The two architectures
A pre-made RSC arrives glued and folded; the packer opens it, loads it and seals it. A wrap-around machine folds a single flat blank tightly around the product collation and seals it on the machine. The result looks similar — the economics do not.
Board consumption
Because the wrap blank hugs the product with no empty corner space, it uses 25 to 30 percent less board area for the same packed volume. For a plant running one million cases a year, that is a direct saving in board purchases, storage space and inbound freight.
Stacking strength
A tight wrap acts as a structural shell. In compression testing, wrap-around cases consistently outperform loose-fitting RSCs of equal grammage because the product column itself shares the load. For tall pallets and long export lanes, that margin matters.
Changeover and flexibility
RSC lines change formats by changing case blanks — simple and fast. Wrap-around changeover adjusts the blank mandrel and glue pattern, which is slightly slower but still under 15 minutes on the YM-860 with recipe memory.
Five-year total cost
The deciding factor is volume. Below roughly 300,000 cases/year, the simplicity of RSC usually wins. Above it, board savings from wrap-around typically pay back the machine premium within 18 to 24 months, then run as pure savings. We model both scenarios for your data before recommending an architecture.