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| Brand Name: | SINOPACK |
| Model Number: | SINA26011 |
| MOQ: | 1000PCS |
| Price: | Negotiable |
| Delivery Time: | 30dAYS |
| Payment Terms: | T/T |
A common purchasing risk for mineral FIBCs is not the absence of specifications on the approved sample. The greater concern is whether bulk production continues to follow the same material and construction requirements.
Two production batches may both be described as using 180 g/m² uncoated fabric. Without directional fabric tests, webbing records and sewing inspection, however, the buyer cannot confirm whether both batches match the approved specification.
This Mineral FIBC Bulk Bag defines the fabric weight, warp and weft strength, lifting-loop construction and body-seam method separately.
It can be evaluated for dry ore and mineral granules after the actual material and operating conditions have been reviewed.
The 180 g/m² figure describes the mass of the body fabric per unit area. It supports material identification and incoming-fabric inspection.
Warp and weft values of ≥1600 N describe minimum strength requirements in two woven directions. A fabric can meet the required GSM without automatically meeting both strength requirements.
A more complete purchasing description is therefore:
180 g/m² uncoated fabric with minimum warp and weft strength of 1600 N.
The production sheet identifies a load capacity of 1200 kg. This value does not independently establish a complete-bag safety factor, cyclic lifting performance or dangerous-goods approval.
If the project requires a 5:1 or 6:1 safety factor, the applicable test standard and documentation must be included separately in the purchase specification.
The four lifting loops have a specified strength of ≥18000 N. This is a technical requirement for the loop material.
Complete-bag lifting performance also depends on the loop-to-body connection, consistency of the four loop lengths, body seams and finished-bag testing.
Before cutting, the fabric should be checked for colour, surface construction, weight and directional strength.
This product requires white uncoated fabric weighing 180 g/m². Minimum warp and weft strengths are both specified at 1600 N.
The sample direction must be recorded. If warp and weft specimens are not identified separately, the results cannot be correctly compared with the two directional requirements.
The finished bag has nominal dimensions of 90 × 90 × 90 cm. Its production panels include additional material for seams and folded edges.
The production sheet lists one main panel measuring 100 × 278 cm and two smaller panels measuring 100 × 98 cm.
Panel-size variation can change the finished dimensions, seam positions and filled shape. Inspection should therefore begin during cutting rather than only after the bag is completed.
Each bag uses four white soft lifting loops. The loop specification is 7 × 145 cm, with a linear weight of 50 g/m and a specified strength of ≥18000 N.
Inspection should compare the effective lengths of all four loops in addition to checking quantity and width. A length difference may prevent the loops from becoming loaded at the same time.
The loops are positioned along the side seams and extend downward from the top. Their position, downward extension and stitching continuity should be inspected.
The body panels use an outward-folded double-needle chain stitch. The upper edge uses an outward-folded single stitch line.
Finished inspection should identify skipped stitches, broken thread, incomplete seams, irregular thread tension and fabric damage around the loop attachment areas.
The packing specification is two bags per package. A blank label without a company heading is positioned on the product, so label placement and packing quantity should also be checked.
| Production stage | Inspection item | Specified requirement | What it does not replace |
|---|---|---|---|
| Incoming fabric | Fabric weight | 180 g/m² | Directional strength testing |
| Incoming fabric | Warp strength | ≥1600 N | Weft-strength testing |
| Incoming fabric | Weft strength | ≥1600 N | Complete-bag testing |
| Cutting | Main body panel | 100 × 278 cm, one piece | Finished-dimension inspection |
| Cutting | Small body panels | 100 × 98 cm, two pieces | Fabric-direction control |
| Loop preparation | Quantity | Four loops | Loop-length consistency |
| Loop preparation | Size | 7 × 145 cm | Effective lifting length |
| Loop preparation | Linear weight | 50 g/m | Loop-strength testing |
| Loop preparation | Strength | ≥18000 N | Complete-bag capacity |
| Sewing | Body-panel seam | Double-needle chain stitch | Actual stitch inspection |
| Finished bag | Dimensions | 90 × 90 × 90 cm | Agreed measurement procedure |
| Finished bag | Specified capacity | 1200 kg | Safety-factor testing |
| Packing | Packing quantity | Two bags per package | Pallet quantity |
The 180 g/m² body fabric is explicitly specified as uncoated. It has no additional laminated barrier and should not be promoted as providing verified waterproof, moisture-proof or fine-powder containment performance.
Dry, relatively coarse mineral materials without strict moisture-barrier requirements can be evaluated using a representative sample bag.
If the material absorbs moisture, contains free water or generates substantial fine powder, the standard uncoated construction may not be suitable.
Coated fabric, a PE liner or sift-resistant seams should then be considered.
A material can be dry and still require additional testing. Sharp-edged ore may present puncture and abrasion risks, and the current production specification does not provide these test results.
The bag can be evaluated for measured quantities of compatible dry ore and mineral granules. A weighing system should control the load rather than determining 1200 kg from the visual fill level.
Empty bags are packed two per package. Before use, bags can be sampled by production batch to inspect the body, loops and sewing.
Maintaining batch records makes it easier to identify affected products if a material or sewing deviation is discovered.
The uncoated bags should be stored in a dry environment and protected from rain, standing water and sharp surfaces.
Filled dimensions may differ from the nominal 90 × 90 × 90 cm dimensions. Vehicle and warehouse layouts should use measurements from a representative filled bag.
The purchase document should list fabric weight, warp strength and weft strength as separate requirements.
Where batch consistency is important, it should also define sampling locations, sample quantities and the required report format.
Measurements can vary depending on whether the empty bag is laid flat and where each dimension is taken.
No dimension tolerance is provided in the available production sheet. The buyer and supplier should agree on the permitted tolerance before production.
In addition to the ≥18000 N strength requirement, inspection should cover loop width, cut length, effective length, attachment position and variation between the four loops.
Where specific lifting equipment is used, the available loop opening should be checked against the actual forklift tines or hooks.
The specified load capacity is 1200 kg, but the required safety factor and complete-bag tests depend on the intended use.
Dangerous-goods transport requires separate verification of the UN packaging code, test report and compliant markings.
An approved sample can be retained before bulk production, together with its fabric batch, loop specification and sewing requirements.
Bulk-delivery inspection can then compare recorded results with the approved sample instead of relying only on product photographs.
