The SIGMA Series Automatic Sleeve Wrapper is designed for automatic bundling of individual products and multipacks using two rolls of shrink film and a welding bar sealing system. The machine creates a film sleeve around the grouped products before transferring the pack through the shrink tunnel.
The system can handle a wide range of products and packaging formats, including bottles, cans, jars, cartons, boxes, trays, containers and other packaged products. Products can be automatically separated, grouped and collated into the required pack pattern before wrapping.
Different product handling systems can be incorporated according to the application, including single or multi-lane infeeds, product separators, grouping systems and pushers. The machine can be configured for standalone, straight inline or 90° right-angle operation, providing flexibility when integrating into new or existing production lines.
Using a dual-roll clear film system, the upper and lower film webs are joined by the welding bar to form the sleeve around the product group. The wrapped pack then passes through a shrink tunnel where controlled heat shrinks the film tightly around the products.
With speeds of up to 15 packs per minute, depending on product dimensions and pack pattern, the SIGMA Series provides a versatile solution for medium-speed automatic bundling applications.
For demanding production environments, the SIGMA can also be manufactured in stainless steel for wet environments, making it particularly suitable for dairy, food, beverage and other applications where equipment is regularly exposed to moisture and cleaning
Challenge: High-speed wrapping of fresh bread without product deformation. Solution: Integrated flow wrapping line with low-backpressure buffering. Result: 25% increase in line efficiency.
Challenge: Cold-chain handling of liquid cartons. Solution: NEMA 4X rated robotic pickers. Result: 40% reduction in manual labor and improved line safety.
Challenge: High-speed bundling of PET bottles. Solution: Continuous-motion shrink bundler. Result: 15% reduction in film usage and 30% increase in throughput.
