Product Description
Mineral processing plants — from fly ash collection at power stations to calcium carbonate grinding mills and silica processing facilities — routinely handle fine mineral powders that generate electrostatic charges during pneumatic conveying, filling, and discharge. In these environments, standard Type A FIBC bags present an unacceptable Propagating Brush Discharge (PBD) risk.
Our Type B FIBC Bag for Mineral Processing is built specifically for the demanding physical environment of mining and minerals — heavy-duty PP fabric, reinforced lifting loops, UV-stabilised construction — combined with IEC 61340-4-4 certified low-breakdown-voltage electrostatic protection. The result is a bag that handles the toughest mineral applications safely, repeatedly, and cost-effectively.
Why Choose This Bag?
- Heavy-duty woven PP fabric (up to 250 gsm) for abrasive and high-density mineral powders
- IEC 61340-4-4 certified PBD protection — no grounding required on the filling line
- UV-stabilised fabric rated to 2,500 hours for outdoor intermediate storage between plant stages
- Reinforced double-stitched seams and loops rated to 6:1 safety factor for multi-trip use
- Available in coated versions to resist moisture and prevent powder caking on inner surfaces
| ⚠️ SAFETY NOTE: Type B FIBC bag must NOT be used in mineral processing areas where flammable gases or vapours may be present — for example, near fuel storage or solvent-based process areas. Use Type C grounded bags in such zones. |
Typical Applications Industries
- Fly ash and bottom ash (power generation and cement industries)
- Calcium carbonate (limestone powder and GCC/PCC grades)
- Silica and quartz powder (glass manufacturing, foundries)
- Talc and kaolin (paper, plastics, rubber applications)
- Titanium dioxide and barium sulphate (coatings and plastics)
Technical Specifications
| Type Classification | Type B (IEC 61340-4-4) |
| Breakdown Voltage | < 6 kV (prevents Propagating Brush Discharge) |
| Target Application | Fine mineral powders; MIE > 3 mJ; no flammable vapour/gas |
| Construction Options | Circular (fine powders) / U-Panel / 4-Panel (heavy minerals) |
| Safe Working Load (SWL) | 500 kg – 2,000 kg |
| Safety Factor | 5:1 (single-use) / 6:1 (multi-trip) / 8:1 (heavy-duty available) |
| Fabric | 100% Virgin PP, heavy-duty, low breakdown voltage, UV-stabilised |
| Fabric Weight (GSM) | 150 – 250 gsm (mineral-grade range) |
| Coating | Laminated PP coating available for moisture-sensitive minerals |
| Seams | Double-stitched reinforced seams; dust-proof option for fine powders |
| Lifting Loops | Reinforced 4 corner loops; cross-corner available for heavy lifts |
| Top Options | Open top / Spout top / Duffle top |
| Bottom Options | Flat bottom / Discharge spout / Conical discharge (for fine powders) |
| Liner | Optional PE or foil liner for moisture-sensitive minerals |
| Printing | Up to 4-colour (product grade, batch, brand identification) |
| Certification | IEC 61340-4-4; ISO 21898; SGS tested |
Frequently Asked Questions
Q1: Is Type B sufficient for fly ash handling, or do I need Type C?
For fly ash collection, storage, and transport at power stations and cement plants — where the handling environment is free from flammable gases and vapours — Type B FIBC bags are generally appropriate and widely used in the industry. If your facility has any flammable atmosphere zones (ATEX classified), consult your safety engineer to confirm. We can supply IEC 61340-4-4 test reports to support your risk assessment.
Q2: Can Type B mineral bags be reused at the processing site?
Yes. Bags specified with 6:1 safety factor are rated for multi-trip use. For abrasive minerals, we recommend visual inspection before each use for loop wear and fabric abrasion. Heavy-duty fabric (200+ gsm) significantly extends service life in mineral applications.
Q3: Do heavy minerals like barite and silica require a higher safety factor?
For very high-density materials (>1,500 kg/m³ bulk density) or where bag stress concentrations are a concern, we recommend 6:1 or 8:1 safety factor bags. Share your material’s bulk density and handling conditions with our team and we will specify the correct SWL and SF combination.
Q4: Are coated bags available for moisture-sensitive minerals like zeolite and silica gel?
Yes. We offer PP-laminated coated bags that significantly reduce moisture vapour transmission. For highly moisture-sensitive minerals, we recommend combining coated fabric with a PE tube liner for maximum protection during sea or overland transport.
Contact Us
| Heavy-duty Type B FIBC bag for mineral processing — contact us for fabric weight recommendations, multi-trip specifications, and bulk pricing.
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