With the rapid growth of warehousing, logistics, and large-item e-commerce, labeling outer cartons has become a key factor in overall capacity. Yet for heavy or irregular workpieces such as unfolded large cartons, hollow boxes, woven bags, and large cardboard sheets, conventional equipment often jams during conveying, produces lifted labels, and runs inefficiently. To address these pain points, Wanzhi Automation developed and put into production the WZ-127 automatic carton labeling machine, an efficient automated solution for labeling logistics outer packaging.

1. Pain points in large carton labeling and the gantry solution

On large carton packaging lines, heavy workpieces and a wide size range are the two core difficulties. Ordinary labeling equipment handling large cartons often lacks sufficient support, so the labeling head shakes, causing wrinkles, bubbles, or offset. The WZ-127, a professional gantry-type flat-surface labeling line for large cartons, uses an innovative gantry frame with a two-side-supported labeling head. This two-point support design greatly improves balance and stability during operation and prevents large workpieces from shaking while being conveyed, ensuring flat, firmly bonded labels without lifted edges; structurally, it solves the stability problem of large-item labeling.

2. WZ-127 technology and specifications

In configuration and performance, the WZ-127 is highly flexible and productive. According to its specifications, the model is WZ-127; the conveyor belt uses variable-frequency speed control from 20 to 45 m/min, and throughput ranges from 15 to 45 PCS/min, adapting readily to different line rhythms. The labeling head has a very large adjustment stroke, front to back and left to right, so cartons of different lengths and widths need no frequent fixture changes, giving it strong versatility. The automatic labeling machine also offers abundant expansion modules: an optional automatic sheet feeder can separate stacked cartons automatically, and an optional inline inkjet printing module prints batch numbers and barcodes at the same time as labeling, creating an integrated feed-print-label line.

3. Applications and selection tips

In practice, the WZ-127 is widely used in warehousing and logistics, large-item e-commerce packaging, furniture fittings, and carton printing. When selecting, companies should first assess the maximum and minimum carton size to determine the right conveyor width and frame length, then decide whether to add an inkjet module based on whether the line needs variable information printed on demand. Wanzhi Automation offers flexible custom engineering: frame length, conveyor width, and the number of heads can all be adapted to the customer’s carton sizes and process requirements, ensuring seamless integration with the existing line.

FAQ

Can the WZ-127 handle large unfolded hollow boxes?

Yes. The machine uses a heavy-duty gantry two-side-supported structure with strong load capacity, and the widened and extended stainless steel frame keeps large hollow boxes from deforming during conveying for stable labeling.

Is changeover complicated when switching between carton sizes?

Not complicated. The machine has a separate touch-screen control panel with visual parameter storage and a large labeling head adjustment stroke; when changing products, simply recall the recipe on screen and fine-tune the mechanical positions.

Can the machine apply two labels at the same time?

Yes. The WZ-127 can be configured with a single-head or multi-head module to apply labels with two or more heads simultaneously, depending on process requirements.

Written by Wanzhi Automation