1. Project Background
Recently, our factory received a custom FIBC order from an overseas chemical raw material manufacturer. The client specializes in export storage and transportation of powdered chemical raw materials, and their original standard bulk bags had three core pain points:
No dedicated extended filling spout, causing severe dust leakage during automatic filling and bringing high pressure to workshop environmental compliance.
Ordinary bulk bags bulge heavily after filling, exceeding limits on side length and diagonal size, resulting in low space utilization inside shipping containers.
Standard fabric and stitching cannot support loads above 1.3 tons, bringing risks of bag tearing and material leakage during forklift lifting.
The client issued strict technical specifications as below:
Safe load range: 1.3T – 1.35T for heavy-duty powdered chemical materials
Base bag dimension: 930mm × 930mm, bag height: 1150mm
Custom extended filling spout: total height 450mm, external exposed height 200mm, spout diameter 400mm
After full loading, the side length and diagonal length of the filled bag shall not exceed 1150mm to meet standard container loading requirements.
2. Customized FIBC Solution Tailored for the Client
Combining the client's three core scenarios: dust-free chemical filling, export size restriction and heavy lifting, our R&D team developed a dedicated chemical FIBC with top filling spout, featuring customized designs as follows:
2.1 Reinforced Bag Body for Stable 1.35 Ton Safe Load
We adopt high-weight virgin PP woven fabric, integrated four-loop lifting design and double-layer reinforced stitching on the bag bottom. The finished bag passes static load test up to 1.4 tons, leaving sufficient safety margin. For powdered chemical materials, antistatic modified fabric is optional to eliminate static risks during filling and transit, fully complying with safety standards for chemical workshops.
2.2 Sealed Extended Filling Spout for Automatic Dust-Free Filling
The integrated filling spout is strictly manufactured per client equipment parameters: 400mm wide diameter with 450mm total height, while the 200mm external exposed section fits perfectly with the outlet of filling machines. Zero dust spills during filling. A high-strength drawstring is equipped on the spout opening for quick tight sealing after filling, preventing powder leakage throughout long-distance sea and land transportation, ideal for dust-free chemical production workshops.
2. Internal Stabilizing Webbing to Control Expansion Size After Filling
Conventional square FIBCs expand naturally on four sides once filled, easily exceeding diagonal size limits. This custom bulk bag is equipped with internal limiting webbing and side reinforcing strips. The 930mm square base will not bulge excessively after full loading, strictly restricting the side length and diagonal length within 1150mm. The neat square shape allows tight stacking inside shipping containers, greatly boosting container loading capacity and cutting down unit logistics costs.
2.4 Optional Upgrades for Chemical Industry Applications
Extra thick LDPE inner liner to isolate chemical powder from moisture and oxidation
Custom printing of client brand logos, product specifications and hazard transport warning labels
High-density leak-proof stitching to stop fine powder leaking through stitch holes, meeting storage standards for fine chemical raw materials
3. Practical Benefits After Project Implementation
Greatly Improved Filling Efficiency
The perfectly fitted extended filling spout matches the client's automatic filling production line, lifting single-operator filling efficiency by 30% and drastically cutting workshop dust emissions to easily pass chemical workshop environmental inspections.
Reduced Logistics Costs for Export
The size-stabilizing design ensures unified bag dimensions after filling, eliminating wasted space inside containers. Each container can hold 8–12 more bags of chemical raw materials, effectively sharing the total cost of sea freight and inland trucking.
Fully Upgraded Safety for Lifting & Transit
The reinforced structure for 1.35-ton load prevents bag breakage and cracking during forklift lifting and multi-layer stacking. Optional antistatic fabric completely eliminates fire risks caused by static electricity of powder materials, securing full-process storage and transportation.
Size Compliance Without Shipping Disputes
The design fully meets the client's strict requirement that the filled bag diagonal length shall not exceed 1150mm. No size overrun issues during loading and customs clearance, avoiding extra losses from repacking or unloadable cargo.
4. Direct Factory Supply of Custom Chemical FIBCs | Full Parameter Customization Service
With years of experience in industrial bulk bag manufacturing, we specialize in custom FIBCs for chemical, mineral and construction powder industries. We provide one-on-one exclusive designs based on clients' load capacity, filling equipment and container size limits.
To solve common industry pain points including dust leakage, bag breakage during lifting, oversize loading and wasted logistics space, we customize FIBCs with extended top filling spouts, bottom discharge spouts, antistatic treatment, waterproof inner liners and hazard-specific bulk bags. Our heavy-duty reinforced designs cover load capacities from 1 ton to 3 tons, while internal stabilizing webbing precisely controls bag expansion after filling.
All products are made of new eco-friendly woven raw materials, complying with export inspection standards of multiple countries. Our bulk bags are widely exported to chemical enterprises across Southeast Asia, Africa, Europe, America, Latin America and other regions.
If you have customized demands for special spout sizes, heavy load bearing, strict size control, antistatic or explosion-proof performance, send us your drawings and specifications. Our professional engineers will quickly deliver exclusive FIBC solutions. Free sample testing is available. As a direct manufacturer without middlemen, we guarantee stable lead times for bulk orders.
If you are facing difficulties in selecting or customizing bulk bags for chemical, granular or powder raw materials, feel free to contact us. Share your requirements on load capacity, dimensions and filling equipment, and we will deliver a matching industrial FIBC solution at once.
