What are auto bags?
Auto bags are pre-opened bags supplied on a roll for use with an automatic bagging machine. Each bag is connected to the next and open on one side, allowing the machine to advance and present it ready for loading. Once the product is inserted, the machine seals the bag and presents the next one.
The term “Autobag” is sometimes used generically in the industry, although it is also a manufacturer’s brand. Severn Packaging generally uses auto bags or pre-opened bags on a roll for the material category.
How does an automatic bagging machine work?
- The machine indexes the next pre-opened bag.
- Air assistance presents the mouth ready for loading.
- An operator or automated infeed loads the product.
- Optional inline printing adds product or variable information.
- The machine heat-seals the pack and advances the next bag.
The SEVERN-DT tabletop bagging machine
The SEVERN-DT is available in 200mm and 300mm configurations and opens, presents and heat-seals suitable pre-opened poly or paper bags on a roll.
Optional SATO inline printing can add product information, barcodes and variable data. The SEVERN-DT can be operator loaded or communicate with upstream equipment through its automation-ready signalling. Typical applications include fasteners, plumbing components, automotive parts, electronics, medical products, spares and kits.
When should loading be automated?
Operator loading is often best for varied products, short runs or frequent changeovers. Where products are consistent and volumes are higher, an automated infeed can remove the repetitive loading stage.
Severn Packaging’s automation and infeed range includes the SEVERN-CC counting conveyor, SEVERN-CS counting scale and SEVERN-BF bowl feeder. Trials are important because product shape, orientation and count requirements affect reliability.
What about e-commerce?
For larger fulfilment operations, the e-commerce bagging machine forms right-sized, four-side-sealed dispatch bags from roll-fed film, with inline labelling and two width options.
Fan-folded mail bags are also available for compatible systems where a pre-made dispatch bag is preferred.
Choosing the right material
Severn Packaging supplies auto bags in clear, white and white/clear formats, with stock and custom sizes. Options include recycled-content film, vents, printing, VCI corrosion protection and antistatic material. Auto bagging film is also available for compatible tubular-film systems.
How to choose the correct system
- Review the largest and smallest products.
- Measure daily and peak volumes.
- Consider bag, label and product changeovers.
- Test whether products can be counted, weighed or oriented automatically.
- Confirm what must be printed on each pack.
- Trial the proposed bag specification before ordering production quantities.
Contact Severn Packaging to arrange a demonstration or application trial.
