The comparison covers a one-piece lock-bottom box that is shipped flat. UGI Packging pre-glues the side seam during production. The customer opens the flat box and locks the bottom by hand, so customer assembly does not replace the factory side-seam gluing operation.

The folder-gluer feeds the die-cut blanks, controls the folding sequence, applies adhesive to the side seam and compresses the glued area before collection. For this structure, the machine must coordinate the side seam with the lock-bottom folds, creases and optional carrying-handle area.

The production team calibrates the lock-bottom fold angles, feeding and folding positions, glue pressure and glue placement. The machine also has to follow the die-cut crease lines so the flat box can later open and lock correctly without distorted panels.

In the current UGI Packging production workflow, setup and stabilization take approximately two days for this one-piece lock-bottom structure. This is factory data for the stated equipment route and box design, not a claim that every folder-gluer or carton requires two days.

UGI Packging records several hundred to more than one thousand trial boxes during setup. The quantity is consumed while fold angles, glue application, feeding position and finished-box opening performance are adjusted to the approved condition.

The machine may become stable only shortly before a small order is completed. The two-day setup labour and the trial-box consumption are then concentrated over very few accepted boxes, and those fixed preparation costs can exceed the paper cost of the finished quantity.

Yes. UGI Packging can technically use manual brush-gluing when the structure and adhesive allow it. However, manual gluing is a separate production route rather than a low-cost version of automatic folder-gluing.

Current UGI Packging production data shows that manual brush-gluing raises the unit production cost by approximately 2-4 times compared with the established automatic route. Each blank must be positioned, glued, aligned and pressed by hand, so labour is added to every individual box.

Manual production takes longer because output depends on repeated operator work rather than continuous machine feeding. UGI Packging also records lower finished-box consistency because glue quantity, seam alignment and pressing conditions are more difficult to keep identical across the full order.

The manual route has more variation in adhesive placement, adhesive quantity, panel alignment and pressure. In UGI Packging production experience, that variation creates a higher risk of an incompletely bonded side seam or a seam that opens during forming and use.

No. Automatic production still requires setup, in-process checks and finished inspection. Glue-opening rejects are included in the UGI Packging combined production-loss record, and saleable boxes are accepted only after the required folding, bonding and appearance checks.

Confirm the final dieline, board and coating, adhesive route, flat-delivery method, opening and bottom-locking sequence, carrying-handle performance and an assembled sample. The order quantity should then be compared with the two-day automatic setup and the per-box labour of the manual alternative.