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Bulk Bags For Heavy Duty | Leading UK Bulk Bag Supplier

d.a.pak Bulk Bags for Heavy Duty

d.a.pak specialises in heavy-duty bulk bags, expertly designed to withstand the toughest conditions. With our full range of options and sizes, you’ll find the perfect bag for your specific application.

Specialist FIBC Bulk Bags Customised To Your Brand & Needs

We offer customization options to tailor our FIBC bulk bags to your specific requirements, including size, colour, and branding, making them a perfect fit for your operations.

How much weight can bulk bags carry?

Bulk bags can be certified to carry contents weighing anything from 50kg up to 2000kg. The heavier your product is, the heavier the grade of fabric needed to manufacture the bag so it conforms to the safe working load. A bulk bag can carry up to 1000 times its own weight.

Bulk bags are predominantly made from polypropylene (PP), a high-strength thermoplastic that’s very strong yet flexible.

The polypropylene is extruded in tubular form and then sliced into threads and woven together (warp and weft) to form a very strong, durable fabric.

Heavy Duty Bulk Bags Use Cases

Heavy-Duty Bags for Soil

Ideal for your construction projects, our heavy-duty bags are capable of holding and transporting soil, gravel, and other construction materials efficiently for your large-scale operations.

Heavy-Duty Garden Bags

Simplify your gardening tasks with our heavy-duty garden bags, perfect for collecting and disposing of leaves, branches, and other garden waste.

Heavy-Duty Bags for Waste

Manage your industrial waste effectively with our heavy-duty waste bags, providing a secure and reliable solution for waste disposal.

Heavy-Duty Bags for Builders Waste

From demolition debris to construction waste, our heavy-duty bags are designed to handle your toughest builder’s waste with ease.

The different types of Bulk Bags

Type A bulk bags
Type B bulk bags
Type C bulk bags
Type D bulk bags

Most bulk bags and FIBCs are produced from type A fabric, a standard woven polypropylene fabric that won’t give you static protection. You shouldn’t use this bag where there’s an air dust mixture, explosive gas or flammable solvent atmosphere.

Type B bulk bags are also produced from non-conductive woven polypropylene fabric and have a breakdown voltage of maximum 6kV.Like type A bulk bags, you can’t use them as anti-static bulk bags as they can’t remove electro charge. As the fabrics used in type B bulk bags have a low breakdown voltage, they will prevent propagating brush discharges which can ignite an air dust mixture – but explosive gas atmospheres could still be ignited. You can use type B bags to safely store and transport dry flammable powders.

Also produced from a non-conductive woven polypropylene fabric, but with interwoven conductive threads that form a connected grid. The grid is a maximum of 50mm mesh size with a maximum distance between each other of 200mm (if the threads only go in one direction). These conductive threads are grounded whenever your bulk bag is filled and discharged. If they’re grounded correctly, there’s no risk of incendive discharges. You can use Type C bulk bags in environments where there’s an air dust mixture, as well as in explosive gas atmospheres.

Type D bulk bags and FIBCs are made from non-conductive woven polypropylene fabric with conductive fibres that aren’t connected to each other.
So this type of bulk bag isn’t conductive, but instead dissipates charge into the environment through corona discharge.
You have the option of treating these bags with an antistatic coating that reduces the surface resistance of the fabric. Because the electro-charge is dissipated through corona discharge, this type of bulk bag can charge conductive objects and people nearby, which could then cause electrostatic sparks on contact with grounded objects, possibly igniting air dust mixtures, explosive or flammable gas atmospheres nearby.
So it’s vital that whenever you’re filling or discharging a Type D bulk bag or FIBC in a hazardous area, all conductive objects or people nearby are grounded throughout. You’ll find full Instructions for grounding on the label of your Type D bulk bag.

Q-Bag & Baffle Bulk Bags

The main benefit of using Q-Bags is that you get four square sides that sit flush on your pallet, meaning you can maximise your payload on your trucks and containers, and make healthy savings on your transport costs.

How it works

A Q-Bag (or Baffle Bulk Bag as they’re sometimes known) is a bulk bag/flexible intermediate bulk container (FIBC) that has internal baffles sewn into the four sides of the bag. The baffles interconnect the four sides of the bulk bag, distributing the pressure evenly from the product they carry. This all helps your bulk bag to stay square when it’s full and maximise your pallet footprint.

In fact, you’ll often get a massive 15% extra product per bag when you’re using Q-Bags or Baffle Bags, sitting on the exact same footprint as a standard bag. A sizeable difference!

Order Heavy Duty Bags in Bulk For Special Rates

Choose our bulk ordering options and get special rates for your heavy duty bulk bag needs. Contact us today to get the best deal for your business.

Things to consider when choosing your bulk bag for heavy-duty

Bulk bags can be manufactured to endless designs and specifications, depending on how you need your products to be filled, stored, transported and discharged. So it’s well worth thinking about:

  • The weight and volume of your product
  • The type of filling and discharging mechanism you need
  • The environment your product’s being filled or discharged in – especially if there’s a risk of electrostatic discharge
  • How your material will flow
  • Whether your bag will be filled several times
  • How it’s going to be lifted
  • If it needs a coating to stop seepage or water getting through the fabric
  • If it needs sift proofing to stop your product seeping through the seams
  • Whether the product inside’s classified as a dangerous or hazardous material
  • Or whether it’s foodstuff.

What exactly is a bulk bag & how is it made?

Here’s our practical guide to the different bags we offer and how they’re constructed, plus some extra info to help you decide on the best one for you.

The name ‘bulk bag’ covers any kind of FIBC or flexible intermediate bulk container. They’re an ideal way for you to transport and store dry, free flowing materials safely, securely and cost effectively.

Frequently Asked Questions

Can our bulk bags be supplied in different colours?

Yes! – Bulk bags can be made in a variety of different colours.

Can our bulk bags be recycled?

Yes you can! Bulk bags are made from Woven Polypropylene which is recyclable. Your bulk bags will need to be empty & baled for collection from a recognised Bulk Bag recycling centre to come and collect for you.

Do we always keep bags in stock?

We carry a large range of stock items which are ready for immediate despatch. However, if you require something a little more bespoke these may need to be ordered in for you.

What is the difference between a Safety Factor of 5:1 & 6:1?

A bulk bag with a safety factory of 5:1 implies that the bag is only suitable for single trip use. A bag with a safety factor of 6:1 can be used multiple times, making the bag more environmentally friendly.

What are our opening hours?

Our office opening hours are from 8am – 5pm Monday to Friday, excluding Bank Holidays.

Can we print onto our bags?

Yes! – Bags can be printed to your requirements. Lead time on printed bags is 10-12 weeks with a minimum order of 500 – 1000 bags.

Can you collect your order?

If your bags are in stock, you can come & collect the bags during our office opening hours, which are 8am – 5pm Monday to Friday (excluding Bank Holidays). However, if you require to pick your bags up out of these hours, please speak to our team who will be more than happy to accommodate for you.

Are our bags UV protected?

Bulk bags have UV protection built into the WPP material used to create them. Woven polypropylene sacks and Net Sacks can have UV added by request.

What is the cut off time for next day delivery?

Orders must be processed by 12pm for a next day delivery in mainland UK, additional charges will apply.

Do we sell vented bags?

Yes! – We sell a variety of sizes in Vented Bulk Bags, Vented & Mosquito Bulk Bags and Log Net Sacks. Please visit our online store to view our vented bags.

What is ‘Standard Delivery’?

All our orders are despatched on a 2-3-day eco-friendly service.

Do we sell used bags?

No – We only supply new, unused bags.

How many times can I use my heavy-duty bulk bag?

Bulk bags can be made for either single trip or multi-trip use, and you can find out which yours is from the safety label that’s attached to it.

A safety factor of 5:1 tells you that your bulk bag is for single trip use only – so you can only fill it once, but it can be lifted several times on its journey.

A safety factor of 6:1 tells you that your bulk bag is for multi-trip use and can be emptied and refilled several times – so this is your more economical and environmentally-friendly option.

The safety label will also tell you the ‘safe working load’ your bag can carry – for example, 1000kg. And it will tell you the test house, certificate number and certificate date, together with your bag’s manufacture date and batch number. All of this info is given to show that your bag’s been tested to perform to a safe standard, and so you can trace every step of its production.

How much weight can my bulk bag carry?

Bulk bags can be certified to carry contents weighing anything from 50kg up to 2000kg. The heavier your product is, the heavier the grade of fabric needed to manufacture the bag so it conforms to the safe working load. A bulk bag can carry up to 1000 times its own weight.

Bulk bags are predominantly made from polypropylene (PP), a high-strength thermoplastic that’s very strong yet flexible.

The polypropylene is extruded in tubular form and then sliced into threads and woven together (warp and weft) to form a very strong, durable fabric.

What is your quality control process?

We adhere to stringent quality control standards throughout our manufacturing process to make sure that all our bulk bags meet the highest quality and safety requirements.

Explore More Bulk Bags

Bulk bags for Sand

Perfect for transporting and storing sand, our heavy-duty bags for sand bring you minimal leakage and maximum convenience.

Bulk bags for Garden Waste

Keep your garden clean and organised with our durable bulk bags designed for garden waste disposal.

Bulk bags for Food

Safely transport and store your food products with our food-grade bulk bags, bringing you perfect hygiene and freshness levels at all times.

The d.a.pak range of ADR & UN Certified Bulk Bags and Soft Sided Packaging

For the carriage of dangerous goods in Bulk Bags (FIBC’s) and Soft Sided Packaging

Dangerous goods are those which have been classified to have hazardous materials in all or part of them according to international regulations. The various types of materials are then grouped into 9 classes for identification.

The carriage of dangerous and hazardous goods in bulk bags by road, sea and rail carry the risk of accidents, leading to possible spillage or leakage which could create a risk such as fire, explosions, chemical burn or an environmental issue. Regulations are in place to ensure that those who come into contact during the transportation process, or the emergency services in the case of an incident, can quickly identify the materials being transported to provide a suitable response. These regulations are known as ADR or Accord Dangereux Routier (European regulations concerning the international transport of dangerous goods by road).

It is, therefore, a legal requirement that dangerous goods are packaged in containers which are ‘type approved’ or certified to UN standards as suitable for transportation of these materials. UN Certified Packaging is marked clearly to indicate hazardous materials are being transported.

13H1Woven plastics without coating and without liner
13H2Woven plastics, coated and without liner
13H3Woven plastics, uncoated and with liner
13H4.Woven plastics, coated and with line
ZThe material being packaged has been tested to a packing group 111 level meaning low danger
1015The month and year of manufacture (in this case Oct 2015)
INDThe country issuing the test certificate (in this case India)
103346217The manufacturer reference
1087The stacking test weight in KGs
1004The maximum weight of contents in KGs

About d.a.pak

And with our longstanding team of experts, comprehensive knowledge of hundreds of products, thorough understanding of your sectors and commitment to sustainability, we’re perfectly placed to provide the solutions you need.

Ready to help with everything from small last-minute requests to large-scale, ongoing projects, our multiple sites, large storage facilities, international suppliers and flexible turnarounds mean we’re the team you can count on when it matters most.

It’s a level of reliability that’s built on 25 years’ industry-leading expertise and invaluable insight into your challenges and needs.

But we know that nothing stands still.

So as your industries – and needs – continually evolve, we evolve alongside them, making sure we always remain the supplier you can count on.

Need a small amount of bulk bags right away?

If you’re looking for bulk bags shipped fast and free, head to our sister company, The Bulk Bag Store.