1000 Kg Coated Lithium Carbonate FIBC Bag With Internal Baffles

1000 Kg Coated Lithium Carbonate FIBC Bag With Internal Baffles

Problem

During the filling, storage and transportation of lithium carbonate powder, buyers commonly need to address several packaging issues:

• Fine powder may escape through fabric openings or stitched seams.
• Conventional bulk bags may bulge after filling, affecting pallet fit and warehouse space.
• Bag dimensions may not match the filling line or pallet size.
• An unsuitable discharge spout may cause uncontrolled flow or material residue.
• Lifting-loop construction may not meet the requirements of a 1,000 kg load.
• Particle size, bulk density and flow characteristics may vary between lithium carbonate batches.

A lithium carbonate FIBC should therefore be selected according to the material characteristics, filling equipment, discharge method and lifting conditions—not by load capacity alone.

Cause

Lithium carbonate is generally handled in powder form. Finer particles place higher demands on fabric coating, seam construction and discharge-spout design. With an uncoated woven bag, fine material may pass through fabric openings or stitched areas.

A conventional four-loop FIBC can also expand laterally after filling. This deformation may increase the occupied storage area and affect pallet positioning or material-handling operations.

Bulk density, moisture condition and powder flowability influence both the required bag volume and the discharge-spout dimensions. A spout that is too small may restrict discharge, while an oversized outlet may make material flow more difficult to control.

Solution

This 1000 kg Coated Lithium Carbonate FIBC Bag combines a coated body, four internal baffle panels, a top filling spout, a bottom discharge spout and four cross-corner lifting loops.

The main body uses 190 g/m² internally coated fabric, helping reduce the risk of fine powder passing through the fabric openings. Folded seams and cotton sealing tape are used at specified connection points to support better powder control around the seams. This construction may help reduce powder escape, but it should not be described as completely leak-proof without documented leakage testing.

Four 56 × 100 cm baffle panels connect the opposing bag walls. These panels are designed to limit lateral expansion and maintain a more controlled square profile after filling.

The bag has four cross-corner lifting loops, each measuring 7 × 151 cm, with a 30 cm sewn-down section. The specified tensile requirement is at least 17,000 N per loop, while the base-fabric tensile strength is at least 1,700 N/50 mm.

The top filling spout can be connected to filling equipment, while the bottom spout supports gravity discharge. Spout dimensions should be confirmed according to lithium carbonate particle size, flowability and the customer’s equipment.

Application

The coated baffle FIBC is intended for bulk filling, internal transfer, warehouse storage and transportation of lithium carbonate powder. It can also be used in raw-material packaging stages within the lithium battery cathode-material supply chain.

Typical applications include:

• Battery-grade lithium carbonate powder packaging
• Industrial-grade lithium carbonate transportation
• Internal material transfer in lithium battery material plants
• Lithium carbonate filling-line packaging
• Palletized warehouse storage
• Processing systems requiring bottom discharge
• Bulk packaging requiring controlled side expansion

Before final selection, the buyer should provide the particle size, bulk density, moisture-control requirements and liner requirements. Battery-grade materials with strict cleanliness, metallic-contamination or moisture-control requirements may require a separately specified liner, production environment and inspection standard.

Specifications

Note: The source document does not specify the safety factor, main fabric resin, lithium carbonate particle-size range, moisture-resistance test, leakage test or cleanliness grade. These items should be confirmed before quotation or publication.

How to Choose

1. Calculate the bag volume from bulk density

A bag should not be selected only by its 1,000 kg rated load. The lithium carbonate bulk density is also required.

Required volume (m³) = filling weight (kg) ÷ bulk density (kg/m³)

If the calculated volume does not match the 108 × 108 × 125 cm bag, the height or base dimensions should be adjusted.

2. Select the powder-control structure

For fine lithium carbonate powder, confirm:

• Whether coated fabric is required
• Whether seam-sealing tape is required
• Whether dust-resistant sewing is needed
• Whether a separate PE liner is required
• The required liner thickness and fixing method

The current bag uses coated fabric and seam-sealing tape. A separate liner and actual filling test should be considered when higher moisture or powder control is required.

3. Match the filling spout to the equipment

The standard filling spout is Φ45 × 60 cm. Confirm:

• Filling-machine outlet diameter
• Spout fixing method
• Tie-cord requirement
• Filling speed and air-venting requirement
• Dust-collection or venting configuration

4. Select the discharge-spout dimensions

The standard discharge spout is Φ40 × 55 cm. If the powder has poor flowability or tends to bridge, the spout diameter and length should be verified through discharge testing.

Confirm:

• Gravity or equipment-assisted discharge
• Required flow control
• Secondary closure requirements
• Equipment connection dimensions
• Acceptable residual material

5. Confirm the baffle and profile requirements

Choose a baffle structure when pallet fit, warehouse space or side bulging is an important concern. The four internal panels are designed to help control the filled-bag profile.

If multi-layer stacking is required, provide the stacking height, pallet dimensions and storage conditions. A baffle structure alone does not establish stacking capacity.

6. Verify lifting and safety requirements

The documented configuration includes:

• 1,000 kg rated load
• Four cross-corner lifting loops
• ≥17,000 N tensile requirement per loop
• ≥1,700 N/50 mm base-fabric tensile strength

The complete-bag safety factor, lifting-test standard and single-trip or reusable classification must still be confirmed before ordering.

7. Define cleanliness and moisture requirements

For battery-grade lithium carbonate, confirm:

• Internal cleanliness requirements
• Production-environment controls
• Metallic-contamination limits
• PE liner requirement
• Liner material and thickness
• Moisture-control requirements
• Pre-packing cleaning and inspection procedures