From film wrapping to top covering in one step, how does the fully automatic cantilever top covering wrapping machine ensure cargo safety?

New Demands for "Top Surface Protection" in the Packaging Process
In industries such as logistics, food and beverage, chemicals, papermaking, and building materials, palletized transportation has become the norm. While conventional wrapping machines effectively secure the pallet on all sides, the top surface is often left exposed, susceptible to moisture, dust accumulation, and environmental damage during transportation. The fully automatic cantilever top covering wrapping machine adds a top covering function to conventional cantilever wrapping, ensuring cargo is secure on all sides while also providing comprehensive protection on the top surface. It is particularly suitable for companies with high requirements for packaging integrity and protection. Equipment Principle and Key Features
The fully automatic cantilevered top-wrapping wrapping machine utilizes a "stationary cargo, rotating cantilever" structure. The film frame rotates with the cantilever to complete the wrapping process, preventing high-center-of-gravity or loose cargo from tilting during rotation. Before wrapping begins, a top-wrapping mechanism automatically places a sheet of film or paper on top of the cargo, followed by normal wrapping, ensuring all-around protection. Equipped with a PLC control system and a touchscreen interface, the machine allows for flexible configuration of process parameters such as the number of wraps, reinforcing tape position, and top wrap angle extension. The film frame supports adjustable pre-stretching from 150% to 300% to achieve a balance between film consumption and tightness. It can also be configured with automatic film loading, film cutting, film pressing, top-wrapping film tension adjustment, and a safety light barrier to ensure efficient and safe packaging.
Applicable Industries and Application Value
This equipment is widely used in industries such as food and beverage, chemical raw materials, papermaking, glassware, building materials, and electronics. For products requiring high moisture and dust resistance, the top-wrapping function effectively reduces damage caused by environmental factors. Compared to traditional wrapping methods, fully automatic cantilevered top-wrapping wrappers not only improve the overall sealing of packaging but also enhance product delivery quality at the customer end. For export goods, top-surface protection effectively prevents quality issues caused by rain and dust intrusion during ocean or long-distance transportation.
Case Study: Comprehensive Protection for Chemical Ton Bags
A chemical company frequently encountered top-surface moisture issues in ton bags of raw materials for export due to prolonged port stacking, leading to customer complaints. After introducing a fully automatic cantilevered top-wrapping wrapper, the machine automatically applies PE film to the top before wrapping all around, maintaining a packaging efficiency of approximately one minute per pallet and providing significant top-surface protection. Moisture-free ton bags during transportation and storage has been eliminated, significantly improving customer feedback. Through parameterized settings, companies can quickly adapt packaging processes for varying cargo heights and shapes, significantly enhancing packaging flexibility and quality assurance.
Conclusion and Selection Recommendations
When selecting a fully automatic cantilevered top-wrapping wrapper, companies should prioritize cargo height, stacking configuration, top-surface protection requirements, and compatibility with existing production lines. Key evaluation criteria include the pre-stretching ratio of the membrane rack, compatibility of the roofing membrane material, cantilever speed, and safety measures. Proper equipment selection not only provides more comprehensive protection for cargo but also reduces losses over the long term, improving customer satisfaction and company competitiveness.