自動ピロー包装機（バックフィルム供給式）

SW-150: Film Back Feeding Flow Wrap for Sticky and Soft Products

The SW-150 is a horizontal flow wrap (pillow pouch) packing machine with a distinctive film path: the film roll is mounted at the rear of the machine and the film travels over the top of the product from above, rather than sliding underneath it. This "film back feeding" layout — sometimes called upper-film or rear-film horizontal flow pack — exists specifically for products that cannot be placed on an under-film conveyor without smearing, sticking, deforming, or losing their shape. Typical clients run preserved fruit slices, hawthorn flakes, candied fruits, soft jelly candy, fruit jelly sticks, mochi, moon cake, traditional Asian confectionery, fresh pre-cut fruit and vegetable packs, and soft bakery where the product is placed gently onto a belt and the film descends from above.

Compared with the under-film layout used on the SW-350B film beneath feeding machine, the SW-150 keeps the forming shoulder above the product path so nothing is dragged across a moving film surface. For operators loading hand-trimmed candied fruit or sliced persimmons by hand, this is the difference between clean pouches and constant smearing. The rest of the mechanical platform — servo-driven film pull, PLC touch-screen control, pneumatic end-seal jaws, SUS304 stainless steel contact surfaces — is shared across the ShengWei pillow machine family, so spare parts and operator training carry over from other ShengWei pillow models on the same factory floor.

The SW-150 is not a liquid filler and not a high-speed candy wrapper. For room-temperature liquid dosing into pillow pouches, use the SW-100 ice pop liquid pillow packing machine. For single-piece hard candy and gummy wrapping at up to 1,200 pieces/min, use the SW-1200 three-servo high-speed machine. For general solid product flow wrap (biscuits, bread, soap, pharmaceutical blisters, hardware) on a standard under-film conveyor, use the SW-350A/450A/550A multifunctional pillow packing machine.