Low labeling efficiency on fresh egg packaging? How the WZ-160 automatic egg-carton labeling machine performs in production

Low labeling efficiency on fresh egg packaging? How the WZ-160 automatic egg-carton labeling machine performs in production

With the rapid growth of fresh food e-commerce and egg processing, packaging standards for plastic egg cartons keep rising. Manual labeling is inefficient and prone to wrinkles and misalignment, and can hardly keep up with large-volume traceability labeling. To address this, Wanzhi Automation has introduced the WZ-160 automatic egg-carton labeling machine, giving fresh food packaging companies an efficient automated labeling solution.

Labeling challenges for fresh food blister packs and our automation solution

On egg processing and fresh food packaging lines, blister packs are thin and come in many sizes, and manually placing and collecting them is laborious, easily creating a bottleneck. The WZ-160 automatic egg-carton labeling machine is an automatic system that Wanzhi Automation custom-developed for flat-surface labeling on fresh egg blister packs. It combines a robotic arm that picks and feeds cartons with a finished-product stacking and collection mechanism. A high-precision flat-surface labeling head and smooth conveying deliver positioning accuracy of ±1 mm. Throughput reaches 25 to 45 cartons/min, and the machine can run standalone or be linked with an upstream thermoforming line, greatly reducing manual intervention and automating everything from carton picking and labeling to collection.

WZ-160 core specifications and labeling technology

The WZ-160 automatic egg-carton labeling machine is thoroughly optimized in both structure and specifications. As a high-performance pressure-sensitive labeling machine, it fully meets the demanding requirements of fresh food packaging. A robotic arm picks, separates, and feeds cartons automatically; a full stack is loaded at once, and the magazine holds 70 cartons, or up to 100 with the optional extended magazine, so operators do not need to keep topping it up.

For labeling, a high-precision flat-surface head with photoelectric tracking keeps cartons moving smoothly without drift, producing flat, wrinkle-free labels with no bubbles. The conveyor width adjusts electrically to suit 8-count to 30-count egg blister packs, so production can switch formats quickly without major machine changes. Conveyor speed reaches up to 16 m/min. The machine uses a stainless steel frame that is robust and compact, runs with little vibration, and supports long high-speed production. A separate touch-screen industrial control panel lets labeling speed and label feed length be adjusted independently, keeping labeling stable and consistent on the line.

Line layout tips and applications

For line layout, Wanzhi Automation recommends choosing standalone operation or direct linkage with the upstream injection molding machine, so forming and labeling are integrated. The machine is widely used by egg processing plants and fresh food packaging companies for automated application of traceability labels and brand labels. When selecting, assess magazine capacity against the egg carton sizes you normally run. For uninterrupted production, consider the extended magazine and the high-capacity collection mechanism, which holds up to 50 cartons at a time, to further improve unattended continuous production.

FAQ

Which egg carton sizes does the WZ-160 labeling machine handle?

The conveyor width adjusts electrically, covering the full range of 8-count to 30-count egg blister packs as well as plastic trays for fresh fruit, so production formats can be switched quickly without major machine changes.

How does the machine support unattended continuous production?

The machine is equipped with a robotic arm for automatic carton feeding and an automatic stacking and collection mechanism for finished products. One loading holds 70 cartons (up to 100 with the optional extended magazine), and collection holds up to 50 cartons at a time, greatly reducing how often operators must refill and unload.

How do I keep thin blister packs from drifting during labeling?

The one-piece stainless steel frame gives the machine a stable weight, so vibration is minimal at high conveying speeds. Combined with a high-precision flat-surface labeling head and photoelectric tracking, cartons travel smoothly and positioning accuracy holds at ±1 mm.

Written by Wanzhi Automation