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| Brand Name: | Cholly |
| Model Number: | GB6-180-2 |
| MOQ: | 1 |
| Price: | Negotiable |
When an FIBC develops local abrasion or tearing, a reinforcement patch may be sewn over the damaged area. The repair section can include the original bag fabric, folded edges, and patch material, creating a multilayer structure that affects needle penetration, stitch formation, and feeding.
The GB6-180-2 FIBC Sewing Machine is compatible with 7×200, 7×230, 7×250, and 7×300 needles. The needle can be selected according to the bag-fabric layers, patch material, and sewing-thread specification.
Needle selection should not be based on the assumption that a larger specification always produces a stronger seam. The needle must match the thread and material structure. An unsuitable combination may cause skipped stitches, thread breakage, enlarged needle holes, or deformation around the patch edge.
The available material lists the compatible needle specifications but does not define a fixed material thickness for each needle. Sample sewing with the actual bag fabric and patch is therefore required before production.
| Check Item | Influence on Needle Selection |
|---|---|
| Original bag fabric | Coated or uncoated structure and fabric weight |
| Patch material | Material, thickness, and edge treatment |
| Total number of layers | Determines actual penetration conditions |
| Sewing thread | Needle must match the thread diameter |
| Stitch setting | Affects penetration points per unit length |
| Damage location | Standard bag body or load-bearing section |
| Trial result | Check skipped stitches, breakage, and needle holes |
The 7×200–7×300 range represents the available needle options. It does not mean that every specification is suitable for the same material combination.
The patch should cover the complete damaged area, with its edge positioned away from the tear. If the original fabric continues to split, repair suitability should be evaluated first.
The patch should be held in the required location before sewing. The upper-and-lower compound-feed mechanism moves multilayer material through the sewing area, but the operator must still complete the initial positioning.
After sewing, check the patch edge, stitch continuity, fabric wrinkles, and needle-hole condition. Repairs near lifting-loop roots or other load-bearing areas require additional strength evaluation or testing.
| Parameter | Specification |
|---|---|
| Model | GB6-180-2 |
| Machine type | FIBC repair sewing machine |
| Applicable needles | 7×200, 7×230, 7×250, 7×300 |
| Maximum stitch length | 0–11 mm |
| Maximum sewing speed | 800 stitches/min |
| Feeding method | Upper-and-lower compound feed |
| Machine-bed structure | Cylinder bed |
| Cylinder diameter | 91 mm |
| Hand-operated presser-foot lift | 14 mm |
| Foot-operated presser-foot lift | 20 mm |
| Motor power | 550 W |
This FIBC Sewing Machine is mainly used for local reinforcement patches, bag-body damage repair, folded-seam restoration, and reinforcement-edge fixation on FIBCs, jumbo bags, and industrial packaging bags. The 7×200–7×300 needle range provides options for different material combinations. However, patch sewing does not automatically restore the original rated load of an FIBC. Continued load-bearing use should be determined from the damage location and test results.
This cannot be determined from the needle number alone. Bag-fabric hardness, patch layers, thread size, and sample-sewing results must also
Yes. Thread matching, stitch length, presser-foot setting, and feeding condition should be checked again. A sample should be inspected for skipped stitches, thread breakage, and enlarged needle holes.
This cannot be determined from the patch appearance alone. Load-bearing use should be evaluated according to the damage location, original bag condition, stitch pattern, and necessary test results.
