Type B has no conductive path, but its fabric is engineered with a breakdown voltage below 6 kV to prevent propagating brush discharges. That makes it the right choice for combustible dusts — while remaining unsuitable for flammable gases or vapours. No grounding is required.
Standardised fields for quick comparison. Values are typical; the exact build is confirmed against your material and handling method.
| Parameter | Typical value | Note |
|---|---|---|
| Product Name | Type B FIBC Bulk Bag | Anti-static (non-conductive) big bag |
| Electrostatic Type | Type B — breakdown <6 kV | No conductive path; no grounding |
| Bag Construction | U-panel / 4-panel / tubular | Baffle on request |
| Material | PP with low-breakdown fabric | Anti-UV optional |
| Dimensions | Customised | 900×900×1100 mm typical |
| SWL | 500–2000 kg | Common 800 / 1000 / 1500 kg |
| Safety Factor | 5:1 | 6:1 for abrasive or reuse duty |
| Top Options | Open / skirt / spout + tie | Dust-minimising fill recommended |
| Bottom Options | Flat / discharge spout | Controlled discharge |
| Lifting Loops | 2 / 4 / 4+2 corner loops | 4+2 for >1500 kg |
| Fabric Weight | 160–220 g/m² | Keeps breakdown voltage in spec |
| Coating / Lamination | Optional | Fine-powder leak control |
| Inner Liner | Static-protective L2 / L3 | See liner types L1 / L1C / L2 / L3 |
| Printing | 1–4 colours | Handling marks required |
| Colour | White (standard) | Custom colours available |
| UV Stabilisation | Optional | Up to 12–24 months outdoor |
| Stitching | Lock-stitch + filler cord | Dust-proof seam option |
| Packaging | Bale / pallet | 20ft ≈ 10,000–15,000 pcs |
| Compliance | EN ISO 21898 · IEC 61340-4-4 | Batch test report with each lot |
Every field below is produced to your order. We confirm the exact combination before manufacturing.
Economical or shape-holding; tubular for fine dust.
Dust-minimising fill for combustible powders.
Controlled discharge; conical available.
Choose by SWL and handling method.
Breakdown <6 kV, no conductive path.
Static-protective liner matched to Type B.
Brand and handling marks.
UV for outdoor storage; pocket for docs.
Many powders — starch, sugar, flour, some chemicals — form explosive dust clouds. Type B controls the one ignition route that plain Type A cannot: the propagating brush discharge.
Combustible dusts only. If flammable gas or vapour is present, use Type C or Type D.
Combustible food dusts — spout fill and discharge.
Fine food powders with dust-explosion risk.
Combustible powders where grounding is impractical.
The same type can be filled and discharged in different ways. Pick the one that fits your line.
Selected steps of our woven-PP production. Full factory capability is on the About Us page.
PP tape woven into fabric; tubular or panel.
Optional lamination for leak control.
Cut to size; 1–4 colour printing.
Sewing with optional static-protective liner.
Breakdown-voltage check, baling, shipment.
ZONGYE is an integrated FIBC manufacturer in Luannan County, Tangshan, Hebei, China. Producing in-house lets us control quality end-to-end and respond fast to custom orders.
See factory & capacity
Note: our ISO 9001 / 14001 / 45001 management system covers the factory. Product conformity to EN ISO 21898 and IEC 61340-4-4, plus batch test reports, are supplied per order — we never present a general certificate as proof that every bag passed product testing.
Type B is for combustible dust without grounding. Use this table to confirm the right type for your product and site.
| Type | How it works | Flammable dust? | Flammable gas / vapour? | Grounding needed? |
|---|---|---|---|---|
| Type A | Plain PP, no static control | ✗ No | ✗ No | No |
| Type B (this page) | Limited breakdown voltage (<6 kV), no conductive path | ✓ Yes (dust only) | ✗ No | No |
| Type C | Conductive threads woven in; must be grounded | ✓ Yes | ✓ Yes | Yes |
| Type D | Static dissipative, no grounding required | ✓ Yes | ✓ Yes | No |
Note: adding a static-protective liner does not change the bag's type classification. A Type B bag with an L2 liner is still Type B.
Send material, dust flammability (MIE), use, dimensions, SWL and quantity.
We lock construction, top/bottom, loops, liner, printing and documents.
Sample or final specification confirmed before bulk run.
Production, inspection, packing and shipment (FOB Tianjin / CIF / DDP).
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.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 the powder, its dust-explosion risk and your site conditions. We'll confirm whether Type B is correct — or whether you need Type C or D — within 24 hours.
