Four-Panel Jumbo Bags

Four-Panel Jumbo Bags: The Classic Design for Uncompromising Structural Integrity and High-Stacking Stability

The Four-Panel Jumbo Bag is the industry workhorse of the bulk packaging industry, and it is designed to meet the maximum requirements of density, weight, and dimensional stability. Made out of five distinct pieces of fabric- four side panels and a unique square base- this shape is the most dimensionally stable FIBC, ensuring the attainment of an almost perfect cubic shape when full.

This would turn it into the final option of optimization of warehouse space and a multi-tier stacking that is rock-solid and efficient in terms of high-value or unusually heavy materials.

Precision Engineering: Why the Four-Panel Design is the Strongest

The strength of the Four-Panel bag can be attributed directly to its component-based manufacturing, which provides the opportunity to reinforce it to the maximum at any of its critical load points.

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Component-Based Strength

The sides of the bag are made with four separate pieces of woven polypropylene fabric, which have been carefully sewn to a fifth and exclusive square base panel. This gives us the opportunity to utilize heavier GSM (Grams per Square Meter) cloth and a better tensile strength thread in all five panels without affecting the shape of the bag.

Maximum Shape Retention

Its strength is inconsistent, ironic with the many seams, eight seams to be precise. Every seam forms a stiff column or corner when the bag is full, which means that the bag must keep its precise square footprint. This helps in the avoidance of the belly or bulge that other types of bags have, which is very important in the stuffing of the container, as well as the high-density warehouse storage, where every centimeter matters.

Load Distribution and Safety

With a Four-Panel bag, the load is evenly spread over five fabric-covered surfaces, and this means that stress points are predictable and work well at high Safe Working Loads (SWL). This construction is commonly required on Multi-Trip FIBC Bags (6:1 and 8:1 SF) since the reinforcement that is individual in the panel is very good for the durability of the item against repeated wear and tear.

Precision-Engineered FIBC Solutions: A Comprehensive Product Portfolio

Cross Corner Loops

Side Seam Loops

Sleeve Lift

Hood Lift

Ancillary Loops

Double Stevedore Straps

Single Stevedore Strap

Open Top With Hem

Tie Down Flap

Duffel Top

Open Top & Tightening Holes

Open Top With Draw Cord

Filling Spout

Discharge Spout with Protection Flap

Discharge Spout with Iris Protection

Discharge Spout with Petal Closure

Discharge Spout

Full Drop Bottom

Quick Discharge / Conical base

Optimized Handling and Customization

The Four-Panel bag is very flexible, though it has a strict structure, it can suit specific needs and needs a great deal.

I. Reinforced Lifting Systems

The design has four very strong corner seams, which are the best corners to anchor our strongest lifting systems.

Corner and Side-Seam Loops

These are sewn directly to the reinforced vertical corners, offering as much support as possible to the largest Heavy-Duty Jumbo Bags (up to 2,000 kg).

Stevedore Loops

In the case of very important heavy loading on the port side, the stevedore loops may be made strong to take care of the abrasive handling and high-speed crane lift.

II. Specialized Barrier Integration

The square internal profile of the Four-Panel bag suits the specialized liners best:

Form-Fit Liners

The bag form is also ideal to accommodate any custom Form-Fit Liners (PE or foil barriers), depending on the size of the bag. This does away with movement and shifting so that better moisture protection or atmospheric control is achieved in the case of sensitive materials.

Sift-Proof Assurance

Similar to the U-Panel, the Four-Panel is necessary because of the fine materials. Our filler cord technology and felt gaskets on all base seams are the most sophisticated sift-proof technology that ensures total product non-leakage.

Ideal Applications for the Four-Panel FIBC

The Four-Panel FIBC is the market leader when it comes to uncompromising density, weight, and an accurate cubic shape.

I. Pharmaceuticals and Fine Chemicals

Its stability and capability of incorporating advanced barrier liners are important to high-value, delicate materials:

Active Pharmaceutical Ingredients (APIs)

Uses Food-Grade FIBC Bags, which require low sift-points and high structural stability to handle the bags safely.

Specialty Chemical Powders

Applied to dense chemical compounds and materials that need to be in a perfectly square shape to be able to use automated dosing and stacking systems.

II. Dense Commodities and Long-Term Storage

Mining and Minerals

Applied in concentrates and metals powders, where high density requires the use of a bag having absolute structural integrity.

Food Powders

The Four-Panel is usually preferred to the Circular bag when stocking flour, sugar, and even starches because its stacking height is better, and it remains stable even after a long period of time.

Lakhotia Polyfab Quality Assurance

Being licensed PP Woven Bags Suppliers, we are producing Four-Panel FIBC with the focus on long-term use and safety. Each bag undergoes extensive in-house testing, which includes drop and tensile strength tests, ensuring that its strong construction provides you with the certified 5:1 or 6:1/8:1 Safety Factor needed when carrying the heaviest and most essential loads in its supply chain operations.