In industries such as food packaging, daily necessities, and printing paper, bottom labeling of products has always been a pain point. Traditional manual flipping and labeling is not only inefficient but also prone to crooked labels and wrinkles. As automated production lines are upgraded, achieving efficient and stable bottom labeling has become a focus for companies. Recently, Wanzhi Automation officially launched the WZ-129 bottom labeling machine, providing a new automated solution for bottom-surface labeling of all kinds of production line products.

Analysis of bottom labeling pain points and introduction to the automation solution

In automated packaging lines, top-surface and side labeling technology is already relatively mature, but bottom labeling often becomes a bottleneck constraining output because it requires flipping the workpiece. Manual flipping consumes a great deal of labor and makes consistent label position hard to guarantee. To solve this industry problem, the Wanzhi Automation R&D team developed the WZ-129 bottom labeling machine in response to the specific needs of inline equipment for labeling the bottom surface of products. The machine uses a recessed labeling head design, so materials conveyed face-up on the belt are labeled on the bottom automatically, completely eliminating the manual flipping step. As a professional labeling machine manufacturer, Wanzhi Automation integrates bottom labeling perfectly into continuous production lines through structural innovation, greatly simplifying line layout.

WZ-129 technical specifications and core advantages

The WZ-129 bottom labeling machine is designed with multi-industry adaptability and stability in mind. First, the equipment category is inline equipment for labeling the bottom surface of products, professionally produced by Dongguan Wanzhi Automation Technology Co., Ltd. In terms of core specifications, the machine offers a wide output range with labeling speed adjustable between 20-80PCS/min, meeting both small-batch sampling needs and high-volume continuous production. Second, the machine supports custom builds: the maximum compatible product width is 300mm, and the conveyor can be widened and the frame lengthened for special workpiece sizes.

For accuracy control, the WZ-129 uses conveyor belt limit positioning to keep materials centered as they pass through the labeling area, with labeling error strictly controlled within ±1mm to ensure flat bottom labels without wrinkles. In addition, the machine can be fitted with a coding machine or inline inkjet printer to print traceability information such as the production date, batch, and barcode on the label at the same time as labeling, integrating labeling and coding. The independent touch control screen allows visual adjustment of labeling speed, label dispensing length, and pressing pressure, and programs can be stored, making changeover setup more convenient.

Selection points and practical application advice

For selection and operating advice, companies introducing a bottom labeling machine should focus on the following points:

  • Size and load capacity assessment: determine the maximum size and weight of the product in order to set the conveyor belt width and load capacity.
  • Line compatibility: the WZ-129 is equipped with an integrated stainless steel frame and swivel casters, so it easily fits existing lines for food containers, daily necessities cans, and paper gift boxes, and supports long, uninterrupted batch production.
  • Setup procedure: we recommend first running the machine empty to check smooth label dispensing, then loading actual materials and fine-tuning the pressing pressure to achieve the desired labeling result.

FAQ

What product size can the WZ-129 bottom labeling machine handle?

The standard model handles products up to 300mm wide. For special workpiece sizes, custom builds are available, with a wider conveyor belt and a longer frame to meet the requirement.

Can the machine print the production date and barcode on the label at the same time?

Yes. The WZ-129 can integrate a coding machine or inline inkjet printer to print traceability information such as the production date, batch number, and barcode directly on the label surface while bottom labeling.

How is the label kept free of wrinkles and drift during labeling?

The machine uses a conveyor belt limit-positioning structure to keep materials centered through the labeling area; labeling error is held within ±1mm and, together with adjustable pressing pressure, this effectively prevents wrinkles and drift.

Written by Wanzhi Automation