In modern industrial packaging, transporting fine dry bulk materials—such as chemical powders, pigments, starch, pharmaceuticals, and lithium battery materials—presents unique safety challenges. When powders are rapidly filled or discharged from Flexible Intermediate Bulk Containers (FIBCs / Bulk Bags), static electricity naturally accumulates due to triboelectric charging.

In the presence of flammable gases, vapors, or combustible dust, an uncontrolled electrostatic discharge (spark) can lead to catastrophic explosions.

To eliminate these hazards, the international packaging industry classifies FIBCs into four distinct categories: Type A, Type B, Type C, and Type D. Understanding the differences between these types is critical for ensuring plant safety, regulatory compliance, and cargo security.

1. Type A FIBC: Standard Plain Bulk Bags

2. Type B FIBC: Low Breakdown Voltage Bags

3. Type C FIBC: Conductive / Groundable Bulk Bags

4. Type D FIBC: Dissipative “Static-Safe” Bulk Bags

📊 Quick Selection Guide: Type A vs. B vs. C vs. D FIBC

Feature Type A Type B Type C (Conductive) Type D (Dissipative)
Material Static Control None Low Breakdown Voltage (<6 kV) Interconnected Conductive Grid Static Dissipative Fibers
Grounding Required? No No YES (Mandatory) NO
Combustible Dust Atmosphere ❌ Unsafe ✅ Safe (MIE >3 mJ) ✅ Safe ✅ Safe
Flammable Gas / Vapor Atmosphere ❌ Unsafe ❌ Unsafe ✅ Safe (When Grounded) ✅ Safe
Common Applications Sand, gravel, minerals Sugar, flour, granular resin Chemical powders, pigments, battery raw materials Explosive powders, solvent-rich areas

🏭 Custom Anti-Static & High-Barrier FIBC Solutions by Wanhefeng

As a dedicated manufacturer of industrial packaging, Hebei Wanhefeng Package Co., Ltd. engineers comprehensive packaging solutions tailored to demanding industrial requirements:

  1. Type C & Type D Conductive Bulk Bags: Manufactured with high-precision conductive threads, rigorous conductivity testing, and custom lifting belt configurations.
  2. Inner Aluminum Foil & Formed Baffle Liners: Combining static safety with superior moisture-barrier, oxygen-blocking, and UV-resistant protection—ideal for new energy lithium battery raw materials and high-purity chemical powders.
  3. Rigorous Quality Control: 100% factory inspection on fabric tension, sewing integrity, grounding continuity, and static dissipation performance.

Need Expert Advice on Bulk Bag Safety?

Choosing the correct FIBC specification protects your workers, your facility, and your product integrity.

About Us

Hebei Wanhefeng Package Co.,Ltd. is a professsional manufacturer of various of container bag, PP fabric, PE fabric, lifting belt, shroud belt and locking line etc. We are near Xibaipo Railway, transportation convenient and quick.We are a private enterprise brand new, registered capital RMB3 million it is a company that focuses on research and development, produce, sale for plastic packing product, including common container bag, Conductive FIBC, Drug FIBC, Food-grade container bag, Drangerous bags, Endometrium bag, Sling bag, Woven bag, inner of container bags and so on. Our company covers an area of 10 thousand square meters, and more than 300 workers, including 20 researchers. The FIBC could be warehouse turnover, recoverable availability, reuse utilization, strong bearing capacity, light weight, easy to mechanical loading and unloading,and facilitate logistics and transportation.

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  • Hebei Wanhefeng Package Co.,Ltd.
    • +86 155 4456 6565wanhefeng@whfpackage.com
  • Hexi Industrial Zone , Weizhou Town ,Jingxing County Shijiazhuang,Hebei ,China 050300.
    • Hexi Industrial Zone , Weizhou Town ,Jingxing County Shijiazhuang,Hebei ,China 050300.+86 15544566565+86 0311-82359166
    wanhefeng@whfpackage.comnancy@whfpackage.com

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