bag making machines
Automatic PP Woven Bag Conversion Line (Printing-Tubing-Cutting-Sewing)
Rey Long's fully integrated PP woven bag conversion line combines four production stages — flexographic printing, tube forming, cutting and sewing (stitching), and overtape application — into a single continuous process. Designed for high-volume woven sack production, the line delivers consistent quality with servo-controlled precision and a touch-screen control system.
Technical Specifications
| Specification | Value |
|---|---|
| Model | JLPTCSM-1300W |
| Production Capacity | 25–40 bags/min |
| Printing Colors | 4 Colors (4+0) |
| Printing Repeat Length | 450–1200 mm |
| Max Printing Width | 1300 mm |
| Fabric Width (Before Tubing) | 700–1300 mm |
| Fabric Width (After Tubing) | 430–660 mm |
| Max Web Width | 1300 mm |
| Gusset Depth | 40–90 mm |
| Cutting Length | 550–1250 mm |
| Cutting Accuracy | 1 mm |
| Overtape Width | 55 mm or 65 mm |
| Stitching Range | 6–12 mm |
| Total Power | 51.7 kW |
How the PP Woven Bag Conversion Line Works
From Fabric Roll to Finished Bag in One Continuous Pass
In a traditional woven bag factory, printing, tubing, cutting, sewing, and overtaping are run as separate operations with material transfers between each step. The JLPTCSM-1300W conversion line eliminates these transfers by linking all five operations in one synchronized drive system. PP woven fabric unwinds from a roll, passes through the 4-color flexographic printing unit, is formed into a tube, cut to length, sewn at the bottom, and finished with an overtape — all in a single continuous motion at 25 to 40 bags per minute.
4-Color Flexographic Printing on PP Fabric
Flexographic printing on woven PP fabric requires precise tension control because the material stretches differently from paper or film. The JLPTCSM-1300W uses a 4-color (4+0) flexographic unit with ceramic anilox rollers, which meter ink volume consistently across the web regardless of line speed variation. Print repeat length is adjustable from 450 to 1200 mm, and the max printing width is 1300 mm. Both plain and BOPP laminated PP fabric are supported — laminated fabric enables moisture-resistant bags with a glossy printed surface.
Frequently Asked Questions
What is the production speed of the JLPTCSM-1300W conversion line?
The JLPTCSM-1300W produces 25–40 bags/min in a fully integrated process combining flexographic printing, tube forming, cutting & sewing, and overtape application in one continuous line.
What bag dimensions can the JLPTCSM-1300W produce?
Fabric width before tubing: 700–1300 mm. Finished bag width: 430–660 mm. Cutting length: 550–1250 mm. Gusset depth is adjustable from 40–90 mm.
How many print colors does the conversion line support?
4-color flexographic printing (4+0 configuration) with a printing repeat length of 450–1200 mm and max printing width of 1300 mm.
What fabric types does the JLPTCSM-1300W handle?
The line processes both plain and laminated PP woven fabric. BOPP laminated fabric is supported for applications requiring moisture resistance or a glossy print surface.
Is a "conversion line" the same as a woven bag cutting and stitching machine?
Yes. "Cutting and stitching machine", "cutting and sewing machine", and "woven sack conversion line" are regional terms for the same equipment class. The JLPTCSM-1300W covers all of these functions — it cuts tubular PP woven fabric to length and stitches the bottom hem — and adds flexographic printing and overtape application in the same continuous pass.
What is the standard lead time and delivery process?
Standard lead time is 2–3 months from order confirmation, covering manufacturing, quality testing, and pre-shipment inspection. Rey Long assists with export documentation and container loading.
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