Product protection and retail presentation at Print & Finishing Solutions (PFS) center on high-clarity, professional-grade containment. We provide Excel Packaging equipment to deliver reliable shrink-wrap solutions for everything from high-volume mailing to protective retail bundling.
Excel Packaging Shrink Wrap Technology
Excel Packaging systems are engineered for industrial durability, utilizing integrated heating and sealing technologies to provide a consistent, wrinkle-free finish on varied package dimensions.
- L-Bar Sealers: These units utilize a specialized "L" shaped sealing bar to wrap products in center-folded film in a single motion. They are equipped with adjustable film cradles and power-takeaway conveyors to increase throughput during high-volume runs.
- Shrink Tunnels: Engineered to work in-line with L-Bar sealers, Excel tunnels feature recirculating air technology to ensure even heat distribution. This prevents "dog-ears" and ensures the film shrinks uniformly around the contours of the product without overheating sensitive substrates.
- All-In-One Systems: For shops with limited floor space, Excel provides "chamber" style machines that perform both the sealing and the shrinking in one consolidated area under a transparent hood.
- Variable Heat Control: Precise digital temperature controllers allow operators to match the heat output to the specific film type (Polyolefin or PVC) and thickness, ensuring a professional bond without "burn-through" on lightweight documents.
Solving Shrink-Wrap Production Failure Points
Q: Why is my shrink film cloudy or brittle after processing? A: This is typically caused by incorrect tunnel temperature or poor airflow. Excel Packaging tunnels utilize adjustable velocity fans to move air around the entire product. By dialing in the correct fan speed and temperature, you ensure the film reaches its "shrink point" quickly and cools evenly, preserving high-optical clarity.
Q: How do I prevent the "ballooning" effect inside the wrap? A: Ballooning occurs when air is trapped inside the sealed film with no escape route. Most Excel systems include adjustable "hole punch" or "micro-perf" wheels that create microscopic vents, allowing air to escape during the shrink cycle so the film pulls tight against the product.
Q: Can I wrap heavy stacks of catalogs without the seal breaking? A: Yes. For heavy or high-tension applications, Excel L-Bar sealers utilize heavy-duty electromagnetic hold-downs. This ensures the sealing wire maintains consistent pressure against the film for the duration of the seal cycle, creating a high-strength bond that withstands the weight of heavy paper lifts.
Technical Specification Matrix
|
Feature |
Excel Chamber System |
Excel L-Bar Sealer |
Excel Shrink Tunnel |
|---|---|---|---|
|
Primary Function |
All-in-One Seal & Shrink |
Precision Sealing |
High-Speed Curing |
|
Operation |
Manual / Semi-Auto |
Semi-Auto / In-line |
Continuous Conveyor |
|
Media Type |
Polyolefin / PVC |
Center-fold Film |
N/A (Heating) |
|
Max Product Size |
Standard Retail |
Up to 20" x 16" |
High-Clearance Options |
|
Best For |
Boutique / Small Shop |
Commercial Bindery |
High-Volume Mailing |
Critical Risk Assessment
While Excel Packaging chamber systems offer the most compact footprint, they create a production bottleneck for jobs exceeding 500 units due to the combined seal-and-shrink cycle time. For commercial mailing environments, a separate L-Bar sealer and Shrink Tunnel configuration is essential to allow for continuous, conveyor-driven throughput. Failing to regularly clean the sealing wires on an Excel machine will lead to "smoked" seals and inconsistent film cutting. For shops processing heat-sensitive digital prints from the IntoPrint SP1360W, utilizing Polyolefin film and the precise velocity controls of an Excel tunnel is the only way to prevent substrate warping during the shrink process.
