Construction & Mining
“Dense loads, rough sites, no sympathy for a weak base.”
A tonne of cement occupies a fraction of the volume of a tonne of agricultural product. All that mass concentrates into a small footprint at the bottom of the bag, and every lift drives it through the base fabric into the loops. Add site realities — rough ground, tight laydowns, heavy equipment operators on tight deadlines — and construction materials become the most punishing application in bulk packaging.
What We Specify For in Construction
We engineer bag geometry, polymer compounding, and seam construction against the exact operational risks of this sector.
Continuous Base Cradle Integrity
U-Panel construction positions unbroken woven fabric across the base with zero seams along the primary bottom load path, eliminating catastrophic base drop-outs.
6:1 Heavy-Duty Safety Factor
For dense, repeatedly handled loads, 6:1 safety factors protect against dynamic shock loads caused by sudden forklift stops and crane lifts on uneven job sites.
High GSM Abrasion Resistance
Heavyweight polypropylene fabric (up to 240+ GSM) stands up to angular gravels, crushed slag, and abrasive minerals, verified by in-house batch GSM testing.
Full Open Bottom Discharge
Dense or cohesive minerals bridge in conventional narrow spouts. Full open bottom closures allow immediate, unobstructed gravitational dumping in one operation.
Typical Configurations for Construction
Indicative starting points, not rigid templates. Final specification follows a detailed engineering review of your cargo behaviour, handling equipment, and transit route.
| Handled Cargo Material | Recommended Construction | Typical Specification Setup |
|---|---|---|
| Cement & dry mortars | U-Panel | Coated, moisture-barrier liner, filling spout, discharge spout, 6:1 SF |
| Sand, gravel & crushed stone | U-Panel | Heavy GSM uncoated/coated, open top or skirt, full open bottom |
| Dense minerals, ores & slag | U-Panel | Heavyweight fabric, continuous base cradle, 6:1 SF, heavy loops |
| Concrete admixtures & dry chemicals | Circular or Four Panel | Coated, dust-proof seams, controlled discharge spout |
U-Panel heavy-gauge construction with continuous bottom fabric and reinforced lifting loops.
Specifying an Construction application?
Share your material density, moisture profile, and seasonal demand schedule. Quotation and technical review delivered within 24 business hours.