Products · Polybag
Pre-opened bags on a roll, for autobag machines
An autobag machine cannot run ordinary polybags. It needs bags that are already open at the mouth and joined on a roll, perforated at exactly the right pitch — a little out and the machine jams. We extrude the film ourselves and cut it to your machine and part spec rather than to a stock size. Few makers in Indonesia produce these locally; the usual alternative is importing them.
Specification
| Construction | Pre-opened bags, joined on a roll Mouths already open; bags separated by perforation rather than cut loose |
|---|---|
| Material | LDPE We extrude the film in-house rather than buying it in and converting |
| Film thickness | 30–120 µm Set by part weight and machine spec — not one figure for every job |
| Bag width | 5–100 cm |
| Bag length | 5–70 cm |
| Perforation pitch | Matched to your machine The dimension that most often goes wrong when bags are bought off a stock size |
| Printing | Flexo — standard on roll bags Part codes, orientation marks, or handling warnings |
| Autobag systems we supply | Autobag® PaceSetter PS 125 & PS 125 OneStep, Brand 500, Brand 550 The Brand 550 runs up to 45 bags per minute |
Printed polybag MOQ is counted by weight, not by the piece: 200 kg for a regular design, with the print cylinder quoted separately from the per-kilogram price. How many pieces come out of that weight depends entirely on bag size and micron, so we work the piece count out once your specification is settled.
Commonly used for
- Automated assembly lines running an autobag machine
- High-volume automotive part bagging without adding operators
- Lines currently dependent on imported bags
Read next
Pre-opened bags on a roll for autobag machines: when and why Pre-opened LDPE bags on a roll for autobag machines on automated assembly lines — how they differ from an ordinary polybag, when they make sense, and why they're custom. 
Custom PE/PP polybags 5–100 cm wide, 30–120 micron, flexo printed — MOQ is counted by the kilogram, not by the piece. 
How to choose a polybag factory (and what to specify) Not every supplier calling itself a polybag factory extrudes its own film. Three questions that separate them, and the spec you should have ready before you request a quote.