Label shrink packaging machine (with conveyor line)

Key Features:
This hot air shrink tunnel for label production is available in two sizes. The internal air duct, electrical control, conveying system, and safety structure are completely standardized; only the passage chamber, power, and overall machine dimensions differ. It can flexibly adapt to labeling production of bottles and containers of various sizes. The equipment employs an industry-exclusive directional zoned hot air circulation design, precisely concentrating hot air onto the label area of ​​the bottle. The heat is gentle and even, preventing label stretching, distortion of printed patterns, and whitening of edges when processing PET and PVC label films. Whether it's small oral liquid bottles or large-capacity laundry detergent containers, it achieves a smooth and even heat-shrink label. The equipment's conveyor speed ranges from 20–40 m/min, adapting to various medium- and high-speed filling and labeling production lines. It can support continuous bottle-carrying operations, steadily increasing overall packaging capacity.

The machine comes standard with an imported high-temperature resistant Teflon non-stick conveyor belt, ensuring smooth, non-slip, and non-tipping transport without scratching the outer walls of glass and plastic bottles or printed labels. It also supports optional roller and chain conveyor structures, adaptable to various materials such as paper cups, frosted bottles, and large-capacity plastic buckets. The worktable uses a uniform 750±50mm height, seamlessly connecting to all fully automatic labeling machines on the market without requiring modifications to existing production lines. The furnace is equipped with multiple independently adjustable air outlets, allowing operators to adjust the airflow in different areas as needed. It is compatible with three processes: bottle neck anti-counterfeiting labeling, partial short labeling, and full-body labeling. A single machine can quickly switch between producing various bottle and bucket sizes.

All electrical components are sourced from top global brands, including SURFON circulating fans (Taiwan), GPG conveyor motors, Fotek solid-state relays, Omron high-precision temperature controllers (Japan), Siemens switches and intermediate relays (Germany), and Schneider switching power supplies, overload protection devices, and AC contactors (France). This ensures stable hardware quality, supporting 24/7 multi-shift uninterrupted mass production in factories. Long-term operation maintains stable furnace temperature and a low failure rate. The equipment is compatible with AC220/380V three-phase 50/60Hz global wide voltage power supply standards, allowing direct adaptation to various domestic and international filling plant power grids. The centralized front-mounted control panel features clear partitions, making temperature, airflow, and conveyor speed adjustments simple. Even novice employees can independently operate and debug the equipment after a short training period.

The furnace body employs a fully enclosed, thickened insulation structure filled with high-density insulation cotton. Red insulated curtains at the inlet and outlet lock in hot air, significantly reducing heat loss and long-term electricity costs. Simultaneously, the low surface temperature of the outer casing effectively prevents operators from suffering burns from high temperatures. The equipment features a triple safety interlock protection mechanism: over-temperature alarm, motor overload, and emergency stop. In the event of abnormal conditions such as bottle jamming, dry burning, or motor malfunction, the equipment will automatically cut off the heating and power supply, simultaneously protecting the upstream filling and labeling equipment from damage. The entire machine adopts a modular, split-assembly structure; the fan, heating element, and conveyor belt can be disassembled individually without disassembling the whole machine. This facilitates daily cleaning of residual water stains on bottles, discarded labels, and replacement of easily damaged parts, significantly reducing production line downtime for maintenance. The machine is equipped with omnidirectional brake casters and adjustable support feet, allowing for flexible relocation and precise leveling in small to medium-sized workshops.

The equipment is natively compatible with two mainstream industry consumables: PET environmentally friendly labeling film and PVC economical labeling film. Switching between different films only requires minor adjustments to the airflow and temperature, without any changes to the hardware structure. The manufacturer provides a one-year warranty on the entire machine, free replacement of original parts for non-human-caused damage, and lifetime remote video and online text technical consultation and troubleshooting guidance. It can also be easily modified to accommodate custom-shaped bottles and non-standard sized containers, adjusting internal air ducts and conveyor widths to meet personalized packaging production needs.

Applications: This heat-shrink tunnel labeling machine needs to be used in conjunction with a fully automatic labeling machine. It is designed for heat-shrinking various cylindrical glass bottles, plastic bottles, plastic buckets, and paper cups, creating labels for the entire bottle body and partial anti-counterfeiting labels at the bottle opening. Two machine sizes cover all bottled products: the smaller model is suitable for small containers up to 100mm in diameter and 280mm in height, including oral liquid glass bottles, mini juice cups, sample cosmetic bottles, small pesticide bottles, and small condiment bottles; the larger model can process large-capacity containers up to 200×400mm, including bottled toiletries, 5L/10L drinking water containers, chemical fertilizer plastic buckets, and large-capacity condiment containers.

After heat shrinking, the labels adhere tightly to the surface of bottles and barrels, clearly displaying brand images and enhancing the aesthetics of supermarket shelf displays. They also provide protection against tampering and theft, isolate dust and water stains during storage and transportation, and offer minor scratch protection. The equipment has a compact overall structure, occupying little workshop space. It is suitable for small and medium-sized food, daily chemical, and pesticide packaging and processing plants, as well as large and medium-sized automated filling production bases. The entire machine meets CE export standards and can be used in conjunction with domestic mass production and international export bottling and barreling production lines.