Quad-Panel FIBC With Conical Top & Bottom Spouts

This custom quad-panel FIBC bulk bag is developed for the storage, transportation and discharging of synthetic rubber pellets, blocks and fine powder, complying with strict chemical packaging standards of synthetic rubber manufacturers. Equipped with dual conical filling & discharging spouts, four anti-twist lifting lugs and internal reinforcing tension strips, it boasts excellent load stability, dust tightness and smooth material flow, ideal for bulk rubber raw material logistics such as ocean shipping, warehouse stacking and mechanical lifting.

1. Core Structural Design
1.1 Quad-Panel Square Bag Body (Outer Dimension: 100×110×210cm)
Adopting a sewing structure with four separate fabric panels, different from seamless tubular bags: 2 short side panels (100cm width) and 2 long side panels (110cm width) are stitched to form a neat cuboid after filling.
Total outer height: 210cm; internal clear size: 40cm short inner width × 25cm long inner width
Total fabric consumption of the bag body reaches 10.12㎡, made of thickened polypropylene woven fabric mixed with 10% anti-aging masterbatch for greatly improved tensile and UV resistance.
Internal tension strips are installed inside the bag to disperse heavy load pressure, preventing bulging, deformation and tearing during stacking and lifting.
Advantage for container loading: The square shape maximizes container space utilization and avoids tilting during multi-layer stacking.

1.2 Conical Top Cover with Φ36cm Filling Spout
The top filling section is fitted with a 60cm-high cylindrical spout (inner diameter Φ36cm) and an integrated conical sealing cover. The total transverse width of the filling spout is 57cm, compatible with automatic pipeline filling operations.
The conical transition design stops material overflow and dust flying during rubber filling; the matched conical cover fully seals the spout to isolate moisture, dust and external contaminants during long-distance ocean transportation.

1.3 Conical Bottom Hopper with Φ51cm Discharge Spout
A 60cm-high conical transition funnel is designed at the bottom, matched with a discharge cylinder of Φ51cm inner diameter (26cm lateral fabric width). Each side of the cone extends 23cm horizontally from the edge of the bag body, symmetric on both sides.
The inclined cone surface thoroughly solves bridging and residue blockage issues of viscous synthetic rubber, enabling fast and residue-free discharging.
Thickened stitching is applied at the joint of the cone hopper and main bag body for friction and impact resistance during discharging.

1.4 Four Anti-Twist Lifting Lugs
Four reinforced non-twist lifting lugs are fixed on the four vertical stitching edges of the quad-panel bag. Each lug is equally divided into two 20cm sections, with a total exposed lifting height of 30cm and a webbing width of 25cm.
Independent reinforcing patches are sewn at each lug position to strengthen stress points and greatly boost load capacity.
The anti-twist design keeps the bag vertical and balanced when lifted by forklifts or overhead cranes, eliminating side tilting, material offset and potential safety hazards during handling.

2. Material Configuration & Performance Advantages
Main Woven Fabric
Thickened polypropylene woven fabric with a weight of 0.16kg/㎡ blended with 10% anti-aging masterbatch. It features outstanding tear resistance, wear resistance and UV resistance, supporting temporary outdoor storage and long ocean shipping under strong sunlight.

Optional PE Lamination Liner (Core Upgrade for Rubber Powder)

An inner PE film liner is available as an optional accessory with three core functions:
Block fine synthetic rubber powder from leaking through fabric gaps to eliminate material loss
Fully isolate moisture, container condensation water and oil pollutants to avoid rubber caking and quality deterioration
Smooth film surface reduces adhesion between rubber blocks and fabric for residue-free discharging
Anti-static lamination can be customized for flammable rubber powder to eradicate risks of static spark ignition

Auxiliary Reinforcement Materials
High-toughness PP raw materials are adopted for high-strength lifting webbing (0.05kg/㎡), thickened fabric for conical top & bottom hoppers (0.16kg/㎡), and internal tension strips (0.10kg/㎡). Double folded stitching is used at all splicing joints to further enhance overall structural stability.

3. Exclusive Advantages for Synthetic Rubber Industry
High Load Capacity & Stable Stacking
The empty bag weighs 2.74kg in total fabric weight. The reinforced quad-panel structure supports heavy loading, allowing 3 to 4 layers of stable stacking in warehouses without collapse.

Residue-Free Discharging
The dual conical spouts are specially designed for viscous rubber materials, leaving no residual pellets or powder inside the bag to cut labor cleaning costs and raw material waste.

Dust & Moisture Proof for Export Ocean Shipping
Combined with the sealed conical cover and optional PE liner, the bag adapts to long transoceanic transportation. It resists high humidity, salt spray and dust pollution at sea to preserve the quality of synthetic rubber, suitable for exports to Europe, Africa, Latin America, Southeast Asia and other regions.

Compatible with Automatic Mechanical Handling
Four anti-twist lifting lugs fit standard forklift arms and crane hooks, preventing rotation and skew during lifting, fully compliant with international safety standards for bulk chemical packaging.

Custom Printing Area for Branding
A dedicated printing zone is reserved in the center of the bag body, supporting customized printing of brand names, specification parameters and safety warning slogans to boost brand promotion for chemical exporters.

Applicable Scenarios
Bulk packaging of synthetic rubber blocks, pellets and fine powder
Containerized ocean transportation of chemical raw materials for export
Factories with automatic filling and mechanical discharging workshops
Outdoor warehouse stacking and long-term raw material storage