Type D FIBCs dissipate static through a low-energy corona — no grounding required. That makes them the right choice where a verified earth cannot be guaranteed on site, and for new-energy powders where grounding is hard to maintain.
Confirmed against your material and handling conditions. Type D is not interchangeable with Type C — the static-control mechanism is different.
| Parameter | Typical value | Note |
|---|---|---|
| Product Name | Type D Antistatic FIBC | Ground-free anti-static big bag |
| Bag Construction | U-Panel / 4-Panel / Tubular | Dissipative yarn interwoven |
| Material | PP + dissipative yarn | Corona discharge path |
| Dimensions | Customised | Per load and application |
| SWL | 500–2000 kg | Common 1000 / 1200 kg |
| Safety Factor | 5:1 / 6:1 | Per use cycle |
| Top Options | Filling spout / duffle | Controlled fill |
| Bottom Options | Flat / Discharge spout | Controlled discharge |
| Lifting Loops | 4 corner / cross-corner | Standard lift |
| Fabric Weight | 160–250 g/m² | Coated available |
| Coating / Lamination | Optional | For leak control |
| Inner Liner | None / L2 antistatic | L2 per IEC 61340-4-4 |
| Printing | 1–4 colours | Anti-static label |
| Colour | White / custom | Typically marked |
| UV Stabilisation | Optional | Outdoor storage |
| Electrostatic Type | Type D (antistatic) | No grounding required |
| Stitching | Lock-stitch + filler | Dissipative seam path |
| Packaging | Bale / pallet | Clean storage |
| Compliance | IEC 61340-4-4 | Dissipation tested |
Dissipative yarn across the body.
Filling point with anti-static label.
Discharge spout for controlled emptying.
Standard lift; cross-corner on request.
Tested dissipation performance.
The only liner class approved for Type D — options below.
Clear type marking.
Per storage and traceability need.
Type D keeps its ground-free operation only with the right liner. Under IEC 61340-4-4, the approved liner class for Type D bags is L2 — antistatic, dissipating charge the same way the bag fabric does.
| Configuration | Liner class | Surface resistivity | Choose when |
|---|---|---|---|
| Type D, no liner | — | — | Free-flowing combustible dusts that need no moisture or oxygen barrier |
| Type D + L2 liner | L2 (antistatic) | 10⁹–10¹² Ω/sq | Combustible dusts needing a moisture or contamination barrier while keeping ground-free handling |
L1 / L1C conductive liners belong to Type C grounding systems and are not used in Type D bags; L3 liners are for Type B only. Full definitions on the L1 / L1C / L2 / L3 liner page.
Type D controls static without an external ground. For mobile filling, varied sites, or new-energy powders where maintaining a ground is impractical, that removes a major failure point.
Battery and conductive powders needing ground-free static control.
Sites without reliable earthing infrastructure.
Multi-site or contract filling operations.
PP tape + dissipative yarn woven in.
Optional lamination.
Anti-static label printed.
Dissipative seam path maintained.
Static performance verified.
ZONGYE produces FIBCs in-house in Luannan County, Tangshan, Hebei, China. Dissipative-yarn placement and static testing are controlled per batch.
See factory & capacity
Note: Type D requires no external ground, but it is not suitable for every flammable mixture. ISO 9001 covers our management system — product static performance is confirmed per batch, not assumed from a general certificate.
Material, dust/solvent class, dimensions, SWL, quantity.
Construction, top/bottom, loops, liner, documents.
Sample or final specification confirmed.
Production, test, packing, shipment.
500 pcs (standard)
Custom 1,000–2,000 pcs; trial orders special-approved.3–5 working days
Standard sample free (freight collect); custom 7–10 days. Test report on request.15–25 days (standard)
Custom 20–35 days from order confirmation & deposit.FOB Tianjin / CIF / DDP
T/T 30% + 70% before shipment or against B/L copy; L/C at sight with guarantee; Sinosure accepted.Tell us your material and whether grounding is available on site. We'll advise Type C vs D and quote.
