Top-Fill Bottom-Discharge Graphite Powder FIBC Bags for Controlled Material Flow

Graphite powder packaging is not simply a matter of filling a bag and moving it to another location. In a production line, the package must pass through equipment connection, measured filling, spout closure, internal transfer, storage and final discharge.

These Top-Fill Bottom-Discharge Graphite Powder FIBC Bags establish a defined route for material entering and leaving the package. The configuration includes a top filling spout, a bottom discharge spout and separate ties, allowing the bag to connect with filling pipes, weighing platforms, receiving hoppers and downstream processing equipment.

Complete Material Path from Filling to Discharge

Stage 1: Connecting the filling equipment

The top filling spout connects with the filling pipe or equipment outlet. The documented filling-spout configuration is Ø45 × 55 cm, using 100 g/m² internally coated fabric and a 25 cm tie.

Before filling, both the outer filling spout and the liner neck should be aligned with the equipment outlet. An oversized spout may be difficult to secure evenly, while an undersized spout may not fit over the filling pipe.

Stage 2: Filling to the target weight

The bag has a rated load of 1000 kg. Whether one ton of graphite powder fits within the 95 × 95 × 125 cm bag depends on the bulk density of the material.

Material flow should be controlled during filling to avoid excessive dust, uneven loading or restricted air release. When a weighing platform is used, the bag height and lifting-loop positions must also fit the equipment layout.

Stage 3: Closing the filling spout

After reaching the target weight, filling should be stopped and residual powder removed from the spout surface. The tie can then be used to close the filling spout.

The liner neck and outer spout should be arranged together. Closing only the outer spout while leaving the liner twisted or displaced may result in an incomplete closure.

Stage 4: Transfer and temporary storage

Once the top spout is closed, the filled bag can be transferred using its four cross-corner lifting loops. The 180 g/m² uncoated body forms the external supporting structure, while the inner liner separates the graphite powder from the outer woven fabric.

The available specification does not provide a stacking test, waterproof test or verified storage duration. Warehouse conditions and stacking requirements must therefore be confirmed separately.

Stage 5: Connecting the discharge equipment

The bottom outlet is specified as Ø35 × 45 cm and uses 100 g/m² internally coated fabric with a 20 cm tie.

Before opening the outlet, the discharge spout should be positioned inside the receiving hopper or downstream equipment inlet. This prevents the outlet from being fully exposed when the graphite powder begins to flow.

Stage 6: Controlling the discharge process

Actual discharge behavior depends on particle size, flowability, moisture condition, compaction and outlet dimensions. The tie can help control the degree of opening, but it does not replace a dedicated flow-control device.

If the graphite powder tends to bridge or agglomerate, the outlet dimensions and required discharge-assistance system should be reviewed before ordering.

Matching Spouts with Customer Equipment

Spout diameter alone does not determine compatibility. The connection method, clamping arrangement, insertion length and dust-extraction conditions should also be provided.

Applications Related to the Product Title

Filling beneath graphite-grinding equipment

The top spout can receive graphite powder from grinding or milling equipment when the equipment outlet can be connected directly to the bag.

Weighed packaging after classification

Graphite powder that has passed through screening or particle classification can be filled by batch on a weighing platform. The 1000 kg rating supports one-ton packaging requirements.

Transfer between production processes

After filling and closing the top spout, the bag can transfer graphite powder from grinding and classification areas to blending, temporary storage or downstream processing.

Feeding production equipment from storage

A filled bag can be moved from the warehouse to a discharge station. The bottom outlet can then connect with a hopper supplying mixers, conveyors or other processing equipment.

Covered bulk transportation

After both spouts are secured, the bag can be used for industrial transport. Because the outer body is uncoated and no waterproof test is provided, suitable rain protection is still required.

Product Configuration Data

Three Material-Flow Arrangements

Information to Provide with an Inquiry

To determine whether the filling and discharge structures match the customer’s equipment, the inquiry should include:

1. Graphite powder particle-size range and bulk density;
2. Target filling weight per bag;
3. Filling-equipment outlet diameter;
4. Spout clamping or securing method;
5. Whether a weighing platform is used;
6. Receiving-hopper inlet diameter and height;
7. Required discharge rate;
8. Whether the powder tends to bridge or agglomerate;
9. Availability of dust extraction at the filling and discharge stations;
10. Electrostatic-control requirements, if applicable.

This bag provides a basic top-entry and bottom-exit material path. Suitable operation depends on matching the spout dimensions, customer equipment and graphite powder flow characteristics.