Slice Flexible Container

Updated: 2026-11-08

Overview

Flexible Intermediate Bulk Containers (FIBCs) are large, industrial-grade bags constructed from woven polypropylene fabric. Designed to hold between 500 kg and 2,000 kg of dry, flowable materials, they offer a sustainable alternative to rigid containers like drums or boxes. FIBCs are favored for their versatility, cost efficiency, and adaptability to automated handling systems. Standard FIBCs feature four lifting loops and a discharge spout, though designs vary for specific applications. They are commonly used in agriculture (fertilizers, grains), chemicals (powders, resins), and construction (cement, sand). Customization options include liners, baffles, and antistatic coatings to meet industry requirements.

Structure and Working Principle

FIBCs consist of a single-piece woven PP fabric body, reinforced at stress points such as lifting loops and seams. The fabric’s tensile strength (typically 5–10 kN/m) ensures durability during filling, stacking, and transport. Unloading is facilitated by a bottom spout (gravity flow) or open-top designs for conveyor systems. Specialized versions include conductive FIBCs (for flammable materials) and food-grade bags with FDA/EC-compliant liners. Baffled designs prevent shifting of granular contents, while UV-treated bags withstand outdoor storage. The bags collapse when empty, optimizing return logistics and storage space.

Key Features

FIBCs offer multiple advantages over traditional packaging: 1) Cost savings—reducing labor and disposal fees compared to small bags or drums; 2) Eco-friendliness—reusable and recyclable, with a lower carbon footprint; 3) Safety—options like static control reduce explosion risks in volatile environments. Additional features include moisture barriers, antimicrobial coatings, and printable exteriors for labeling. Standard certifications include ISO 21898 for design and UN certification for hazardous material transport. Custom sizes (e.g., 70x70x100 cm) accommodate pallet and container dimensions.

Application Areas

FIBCs serve diverse sectors: 1) Agriculture—transporting seeds, animal feed, and fertilizers; 2) Chemicals—handling resins, pigments, and industrial powders; 3) Food—storing sugar, flour, and salt (requiring food-grade liners); 4) Pharmaceuticals—hygienic, contamination-proof designs for raw materials. In construction, FIBCs manage bulk cement and sand, often with weather-resistant coatings. Specialized industries use them for minerals, plastics recycling, and hazardous waste. The choice of FIBC depends on the material’s abrasiveness, hygroscopicity, and regulatory classification.

Maintenance and Precautions

Proper FIBC use maximizes lifespan and safety: 1) Inspect for damage (e.g., torn loops, frayed seams) before reuse; 2) Clean thoroughly when switching contents to avoid cross-contamination; 3) Store empty bags in dry, rodent-free areas to prevent degradation. For hazardous materials, ensure static protection (e.g., Type C FIBCs with grounding straps) and avoid overfilling beyond the safe working load. Follow OSHA or regional guidelines for stacking heights (typically ≤3 bags high). Dispose of worn-out FIBCs via PP recycling programs where available.

B2B Procurement Guide

When sourcing FIBCs, prioritize suppliers with ISO 9001 certification and proven compliance with industry standards (e.g., EPA, EU directives). Key considerations: 1) Capacity—match the bag’s safe working load to your filling equipment; 2) Lifting method—check loop strength (≥2:1 safety ratio) and compatibility with cranes or forklifts; 3) Content compatibility—verify liner materials (e.g., PE for moisture resistance). Bulk orders (100+ units) often qualify for discounts. Request samples to test durability and discharge efficiency. Leading manufacturers provide technical drawings and testing reports. For global shipping, confirm container-friendly dimensions and palletization options.