Executive summary Our pipe bagging line makes a bag from PE or PP film, pushes a pipe bundle into it and seals it, all on the line. It bags bundles from 110 to 260 mm across at about 1–3 bundles per minute, and the bag can be changed to suit single pipes. We size the bag from the bundle diameter and check the bagging rate against your extruder output.
Table of Contents
- How the bagging line works
- Size the bundle
- Size the bag
- Bagging rate against the extruder
- Line data
- Utilities and safety
- Selection checklist
- Engineering FAQ
- Next step
- Related reading
- Sources
How the bagging line works
- Feed. The pipe bundle is fed in automatically and conveyed to the bag station.
- Make the bag. The machine welds PE or PP film into a bag sized to the bundle.
- Fill. A pusher drives the bundle into the open bag.
- Seal and discharge. The bag is sealed, carried to the end of the line and tilted out.
Upstream, a counting and bundling machine counts the pipes by program and holds the bundle together with LLDPE stretch film before bagging. A strapping machine can strap the bundle instead, and a labelling machine can add a barcode label after sealing.
In our video, the bag opens round the bundle and a red laser line marks the centre, so the bundle goes in straight and the seal lands clear of the pipe ends.
Size the bundle
Round pipes nest in a hexagon. A bundle of 19 pipes has 5 pipes across its widest row, so its diameter is about 5 times the pipe diameter.
| Pipe | Pipes per bundle | Bundle diameter |
|---|---|---|
| 20 mm | 19 | about 100 mm |
| 32 mm | 19 | about 160 mm |
| 50 mm | 19 | about 250 mm |
The 20 mm bundle falls below the 110 mm bagging range, so small pipe needs more pipes per bundle. With 37 pipes, there are 7 across, giving about 140 mm. The bundle weight should also stay within 10–50 kg for the bundling machine.
Size the bag
The bag has to go round the bundle with some clearance:
Flat bag width ≥ π × bundle diameter ÷ 2 + clearance.
For the 160 mm bundle, π × 160 ÷ 2 is about 251 mm before clearance. Too little clearance makes the bag drag on the pusher stroke, so we set it on a trial with your bundles. The bag length is the pipe length plus enough to seal at the end. Pipes run 3–6 m long, and bag film is PE, PP or HDPE, 30–80 µm thick.
Bagging rate against the extruder
Illustrative example for 32 mm pipe in 4 m lengths, 19 pipes per bundle:
| Bagging rate | Pipes per minute | Pipe per minute |
|---|---|---|
| 1 bundle/min | 19 | 76 m |
| 3 bundles/min | 57 | 228 m |
If your extruder makes less pipe per minute than the bagging line can take, one bagger can serve the line comfortably. If several extruders feed one bagger, we add their output together and check it against the rate for your bundle size. A pipe storage and buffer station ahead of the bundling machine keeps the line working without a break, for example while a film roll is changed.
Line data
| Item | Value |
|---|---|
| Bundle diameter for bagging | 110–260 mm |
| Bagging speed | About 1–3 bundles per minute |
| Bag film | Welded PE or PP; PE, PP or HDPE, 30–80 µm |
| Film roll diameter | 200–500 mm |
| Pipe length | 3–6 m |
| Pipe diameter for bundling | 20–65 mm |
| Bundle weight | 10–50 kg |
| Counting | Automatic, by program |
| Options | Strapping before bagging, labelling after sealing |
Utilities and safety
The bagging line needs compressed air at 7–8 bar and a 380 V three-phase supply, which we build to your local frequency. The sealing jaws and pusher are guarded, and the line stops if a bundle jams at the bag station.
The standards that apply depend on the destination market. For CE markets, ISO 12100 sets the risk-assessment method and EN 415-10 sets general requirements for packaging machines.
Selection checklist for a pipe bagging line
- Pipe diameter and length range.
- Pipes per bundle and bundle diameter.
- Single pipe or bundle bagging.
- Bag film type and thickness.
- Extruder output per line, and lines per bagger.
- Strapping or labelling needed.
- Local power supply and compressed air.
Engineering FAQ
Q: What bundle sizes can it bag? A: Bundles from 110 to 260 mm across. A smaller bundle needs more pipes per bundle to reach the range.
Q: How fast is it? A: About 1–3 bundles per minute.
Q: Can it bag single pipes? A: Yes. The bag can be changed for a single pipe or a bundle; we confirm on your drawing that the pipe diameter suits the bag station.
Q: What film does it use? A: Welded PE or PP film, 30–80 µm thick.
Q: How wide should the bag be? A: Flat width at least π × bundle diameter ÷ 2, plus clearance.
Next step
We plan your pipe bagging line in three steps:
- Submit your layout drawing with pipe sizes and extruder output to info@fhopepack.com.
- Receive a proposal within 48 hours, with the bundle and bag plan.
- Book a site survey to check the link to your extrusion line.
Related reading
- Pipe bag packing machine
- PPR and PVC pipe bagging line
- Online pipe bundling line
- Video: full automatic orbital bagging machine for aluminum profile and stainless steel pipe
Sources
- Bagging line data: PPR and PVC pipe bagging line page
- Bundling and bag film data: pipe bag packing machine page
- Machine in action: our pipe bundle bag packing video on YouTube
- Standards scope: ISO 12100:2010, EN 415-10:2014
Last reviewed: 2026-10-04
