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Custom Bulk Bags (CBB) are essential products for storage and can be used to ship a variety of raw materials, agricultural produce and chemicals. These flexible containers can be found in many ports around the world. Bulk bags are a crucial solution for various businesses and logistics companies as they make bulk shipment easier and safer. 

With a minimum 5:1 safety factor, Custom Bulk Bags are designed to carry at least five times their intended load. Our high-quality bags are incredibly durable and meet strict international standards for safety, manufacturing quality and longevity. Here are a few tips on how to ship bulk bags efficiently.

bulk bags compacted and ready for reuse

Shipping bulk bags properly

Inside containers, all goods must be packed tightly and remain supported by a net or barrier throughout transit. This keeps the weight from shifting over rough roads and seas. Custom Bulk Bags should never be placed in close proximity to sharp objects inside shipping containers. Any accidental tears and punctures can potentially damage or destroy the valuable goods stored within the bulk bags.

When stacking bulk bags, the heaviest materials should be placed on the bottom level, with lighter items on top. Heavy loads must be spread equally across the shipping container to ensure balance. This prevents point loading, which can lead to structural instability and possible tipping over. Shipping containers must be locked and sealed to prevent theft and vandalism during road and sea transit.

Custom Bulk Bags are effective at storing many types of materials, whether granular, solid or semi-liquid. However, they must be protected during transit from any forces that may damage the fabric. Toxic goods should never be stored among other products as a spillage or leakage could lead to contamination and a reaction.

bulk bags placed on one another

Unloading bulk bags from shipping containers

When unloading Custom Bulk Bags from the containers, be sure to follow the correct handling procedures as this will prevent unintentional spilling and potential harm to workers. All loose bulk bags must be securely fastened to the ship deck if rough weather sets in. The loops or handles of the bulk bags can be fastened to the deck.

To make unloading more efficient, each bulk bag must have a displayed code that is easily visible. This permits officials in the port to see what contents are contained within the bulk bags and where they are being sent. Custom Bulk Bags can incorporate clear pockets on the bags for the display of such documentation and codes. 

This will also ensure that no products get lost during transit – if they do, then the bulk bags can be traced easily and returned to their intended destination. These tips will help logistics companies and other businesses to transport bulk bags in the most efficient and safe manner possible. For more information about our bulk bags, please contact us today. 


Custom Bulk Bags is a South African manufacturer of woven polypropylene bags for various industries, such as mining, chemicals and food. We are able to produce over 3.5-million bulk bags per year, keeping our customers in stock at all times. Our bags adhere to the highest levels of quality as a result of our stringent in-house testing and quality control programmes.

Custom Bulk Bags holds ISO 9001 certification and we currently have a number of UN-certified designs. We are a Level 3 B-BBEE manufacturer and supplier and fall under the ownership structure of Deneb Investments Limited. For more information on our products, contact Follow us on Facebook for our latest news and industry insights.