In hardware processing and plastic injection molding, inline labeling of flat workpieces often tests both efficiency and accuracy. Manual labeling is time-consuming and prone to missed or crooked labels. Wanzhi Automation recently completed production and delivery of a batch of WZ-121 automatic flat-surface labeling machines, giving several manufacturers an efficient general-purpose top-surface labeling solution and supporting their line automation upgrades.

Inline flat-surface labeling challenges and our solution

As product traceability requirements grow, flat workpieces need not only accurate labels but also printed batch information. Many companies installing automated equipment run into poor compatibility and cumbersome changeovers. The WZ-121 automatic flat-surface labeling machine from Wanzhi Automation is designed for top-surface labeling of regular flat workpieces. It uses a photoelectric sensing system: products passing on the conveyor automatically trigger dispensing and pressing, with fully automated operation that replaces manual labeling and significantly improves line flow.

WZ-121 labeling machine technical analysis and specifications

Technically, this flat-surface labeling machine offers high flexibility and stability. A separate touch-screen control panel allows visual parameter adjustment and program storage, making changeover faster. In terms of core performance, the variable-frequency conveyor belt runs from 20 to 35 M/min, adapting readily to different production rhythms. A precise photoelectric trigger holds labeling error strictly within ±1 mm, ensuring consistent quality without missed or crooked labels. The machine also supports an optional printing module, such as a coder or inkjet printer, that prints the production date, batch number, and barcode on the label in the same step, integrating labeling and coding and eliminating a second process.

Applications and selection tips

In practice, the WZ-121 is widely used for volume processing of flat products such as hardware parts, plastic parts, paperboard, and security reflective signage. When selecting, focus on the following points:

  • Size compatibility: confirm the maximum width of your workpieces. The machine handles flat workpieces up to 300 mm wide, covering most standard applications.
  • Peripheral equipment: assess whether automatic sheet feeding or stacked collection is needed based on the line layout, to suit roll material or loose parts.
  • Workshop layout: the machine weighs about 100 kg and has swivel casters, so it can be moved and positioned flexibly in small and medium workshops to support continuous production.

FAQ

Is changeover complicated when switching to products of different sizes?

The WZ-121 has a separate touch screen with intuitive parameter adjustment and supports program storage. When changing products, simply recall a stored program and fine-tune the mechanical positions; setup is quick and simple.

Can the machine print the production batch number while labeling?

Yes. The machine has expansion interfaces, so a coder or inkjet printer can be added to match the product, printing the date and barcode at the same time as labeling.

Is it easy to move and re-lay out the machine within the workshop?

The machine has a lightweight design, weighs about 100 kg, and comes standard with swivel casters, so one person can push it into position, adapting to different workshop layouts.

Written by Wanzhi Automation