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When placing an order for bulk bags, your supplier will need to know a few additional details about your company, its processes and the products or materials you will be transporting or storing. These extra details will also cover the filling and discharging processes so that the supplier can tailor your bulk bags to suit your needs perfectly.

Custom Bulk Bags is a manufacturer and supplier of woven polypropylene bulk bags in South Africa. Our products meet strict international standards for quality and safety; they all have a minimum 5:1 safety factor, meaning that the bulk bags can safely hold at least five times their intended load without tearing or breaking.

We are able to customise your bulk bags, depending on your requirements and products. This includes a range of spouts and attachments for filling and discharging, as well as custom printing and graphics. Our bulk bags range in size from half a cubic metre to two cubic metres and can carry between 500kg and two tonnes.

Product information determines bulk bag design

The following is a list of product information and details that we will need in order to provide you with the most suitable bulk bags:

  • Bulk density of the material (in kilograms per cubic metre).
  • Product mesh size.
  • Product characteristics (static, free-flowing etc.)
  • Percentage of moisture in the material.
  • Filling temperature.
  • Safe working load or net fill weight needed per bulk bag.
  • Is the product hazardous, dangerous, corrosive or flammable?
  • Does the bulk bag need to meet food safety requirements?
  • Does the bulk bag need to meet pharmaceutical requirements?
  • Does the bulk bag need splash proofing or additional inner liners?

These product details are important as they will directly affect the design of the bulk bags. They can help you narrow down your options and speed up the delivery time since the supplier will have all the information they need when you place a bulk bag order. If you’re working with regular materials, such as sand or mining ore, then standard bulk bags will be ideal.

Optional design features from Custom Bulk Bags

Custom Bulk Bags offers numerous optional extras to make your bulk bags more convenient and effective. If your products need extra support, then consider getting bulk bags with internal baffles. These are extra panels of fabric that are sewn into the corners of the bulk bag.

Most of our bulk bags come in white, but you can also order a specific colour for branding purposes. In addition, Custom Bulk Bags can print logos, labels and product information on the fabric, which makes transporting and identifying bulk bags easier. We can also add splash proofing and UV-coating to your bulk bags.

If your business uses specialised machinery and equipment, then we can add custom spouts on the tops or bottoms of your bulk bags. This makes them compatible with your equipment. The various optional extras can be discussed and finalised once you get in touch with one of our expert consultants. 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.