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Purchasing managers are always looking to balance costs and quality, and bulk bags deliver on both. Made of durable and lightweight polypropylene, bulk bags allow purchasing managers to enjoy cost savings with no compromise in overall quality. These are perfect packaging solutions that can be ordered to suit any of your needs through Custom Bulk Bags (CBB).

At CBB, we work with purchasing managers from a wide range of sectors, including construction, mining, agriculture and waste. Bulk bags are used to store and transport various materials, such as fertilizer, animal feed and mining ore. When purchasing managers have specific requirements, our team can design and customise bulk bags to suit their needs. 

Let’s look at the key features of bulk bags, how they can save you money and why they are so widely used in the packaging of goods. 

What are bulk bags?

Bulk bags, also known as flexible intermediate bulk containers (FIBCs), are used to store and transport both dry and wet goods. These woven containers can be fitted with various attachments and inner linings, especially when used to transport viscous liquids or materials that need extra protection against moisture. 

It is this kind of customisation that sets CBB apart from its competitors. Purchasing managers can give details on how their bags will be used, and our knowledgeable team will give recommendations on the best design and optional extras for their needs. 

The design of the top and the bottom of the bag is completely tailored to each customer. The top can be left open or include a flap or filling spout, while the bottoms can be ordered with various attachments. The bag’s loops can also be customised according to how they will be transported around warehouses. Companies can opt to have their logos and other information printed on bags, making them personalised for each business.

Bulk bags have an extremely high safe-working load (SWL). They can often carry significantly more than their own weight. At CBB, we do regular safety tests on our bags to ensure they meet high international safety standards. These tests ensure that bags can be used multiple times, without any effect on safety and quality. Our products come with a minimum 5:1 safety factor, which means that they can carry at least five times their SWL.

How can bulk bags save you money?

Bulk bags are extremely lightweight, weighing between two and three kilograms each. They have the lowest package-to-product weight ratio when compared to other packaging containers. Purchasing managers can save on shipping costs because the weight of the bulk bag doesn’t add to the transportation costs. Storing in bulk is also cheaper than using smaller packaging. FIBCs are used in the shipment and storage of bulk materials to keep costs low.   

Bulk bags are made from polypropylene, which means that they can be purchased at a low cost. Polypropylene is one of the least expensive thermoplastics available on the market. It is highly durable, so bags can be reused over and over again. In addition, polypropylene is non-reactive to many chemicals and substances, and it is not sensitive to atmospheric temperatures. 

Bulk bags can be customised to suit your equipment and workflow. Warehouses are all different in their design and the type of machinery is available. Whether the FIBCs will be handled with cranes or forklifts, they can be designed to be quickly loaded and discharged. High-speed filling and emptying mean better efficiency in warehouses, which helps to lower overall costs. 

Why are bulk bags good quality?

Polypropylene has incredible strength and durability, which is why they are tear- and puncture-resistant. As a compound, polypropylene is inert and mould resistant, so fungus will not grow on the inner or outer surface of the bag. These properties enable the woven fabric to provide a safe layer around the valuable materials stored inside.

We put quality at the centre of our production ethos. We follow international guidelines on bag design, use of raw materials and we only use production techniques that are of the highest standards. Our bulk bags are made in clean facilities. Throughout our premises, we have stringent health and safety protocols in place. 

For purchasing managers looking to procure reusable bags, they should consider implementing protocols for the assessment and monitoring of the bags’ quality. Before being reused, bags should be properly inspected for any rips or embedded materials, like small pieces of glass or metal. With regular and proper inspection, the shelf life of bags is extended. Keeping a log of when bags were used, what products they held and how many times they have been used, will ensure that old bags are taken out of circulation in good time. 

How to assess the quality of a bulk bag

Why is it important to choose a reliable supplier?

These recent times have made international supply chains highly volatile. The effect of this is that delivery times are much longer than they were before the pandemic. At CBB, we work with purchasing managers to make sure that orders are placed timeously. We pride ourselves on our excellent customer service. Throughout the pandemic, we’ve been able to deliver orders and maintain production. 

With years of experience, our team understands the bulk packaging industry and the needs of our customers. We are able to provide expert guidance on the best design and style for your bulk bags, customising them according to your needs. More purchasing managers are choosing FIBCs as their preferred packaging option because of their strength, durability and low cost. For more information about our bulk bags, please contact us today. 


Custom Bulk Bags is a leading 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.