A common type of “coating” would be a 1 mil. (30 GSM) lamination of heated semi-clear polypropylene, which is bonded to the fabric. Interior coating is most common in U-Panel style of bags, while circular/tubular bulk bags most commonly have an exterior coating.
Yes, liners can be inserted loosely or attached to the bag as well. There are different types of liners for different applications, but the main two are tube liners and form fit liners.
Patching a bulk bag is possible, but not recommended, and solely at the users discretion and risk.
Bulk bag costs vary and are dependent on a variety of design and specification requirements. Since the products are made from polypropylene (PP) resin, which is made from petroleum, the price fluctuates with the crude oil market. As polymer prices rise and fall so do the prices of bulk bags.
- Top
- Inlets and Openings
- Body
- Webbing or Lift Loops
- Bottom
- Outlets or Discharge Spouts
- Ties, Clips, and Buckles
- Other Specialty Parts
A type D bulk bag is constructed from antistatic fabric that includes static dissipative, like Crohmiq type bulk bag. This type of bulk bag does not require grounding.
- Used safely to transport flammable powders.
- Used safely when flammable solvents or gases are present around the bag.
- DO NOT USE when the surface is contaminated or coated with a conductive material such as water or grease.
A type C bulk bag is constructed from fabrics having inter-connected conductive threads. The bag must be electrically grounded during filling and emptying.
- Used safely to transport flammable powders.
- Used safely when flammable solvents or gases are present around the bag.
- DO NOT USE when the ground connection is not present or has become damaged.
A type B bulk bag is constructed from insulating fabric but has a breakdown voltage less than 6kV. This provision prevents the risk of energetic propagating brush discharges which can ignite the dust-air mixture. Type “B” bags may be used in the presence of the combustible dust with MIE of greater than 3mj but in the absence of flammable vapours of gases. Low breakdown voltage.
- Used safely to transport dry, flammable powders.
- There are to be no flammable solvents or gases present around the bag.
- DO NOT USE to transport flammable products.
A type A bulk bag is constructed from non-treated insulating fabric. No requirements are specified for type A bulk bag as they are not intended for use in potentially explosive atmospheres. No static protection.
- Used safely to transport non-flammable products.
- There are to be no flammable solvents or gases present around the bag.
- DO NOT USE to transport flammable products.
To be honest we don’t recommend reusing the FIBC bags many times. If you reuse an FIBC bag you have to take into consideration that the fabric might be worn down or the loops could be breaking down, etc. If you plan on using a bag more than once it is recommended that you custom order it with a 6:1 SF. We also do not guarantee a certain number of uses for a 6:1 safety factor bulk bag and do not recommend using any FIBC bags more than 10 times.
UN Certification is a testing certification done by an independent testing facility that put the specified bulk bag through a set of rigorous test, i.e. drop test, topple test, and top lift test.
Baffles are pieces of fabric that are sewn to the inside corners of a bag to maintain its cube shape after filling. The baffles have holes that allow the product to flow freely through them. The baffles also prevent the bag from bulging, which makes the bag stand up straight and in turn allows the FIBC bags to be more efficient in their use of space. Net and tie baffles are another type of baffle option, but not as common.
A four-panel FIBC bag is the original polypropylene design. This design requires seams along with four separate pieces of fabric sewn to create a four-panel FIBC bag. Capacity is up to 4400 lbs.
Circular bulk bags are made from fabric that has been woven on a circular loom. The fabric is woven into a continuous tube of fabric and then cut to the correct size height. The tubular body design is ideal as a linerless option for fine materials. It is also an excellent alternative to the original four-panel bag construction. Capacity is up to 4000 lbs 1800kg.
A U-Panel bulk bag requires 2 seams along 2 opposite sides to create 2 panels and a “U” Panel shape. This style of bulk bag has become the industry standard in the United States.
By Shape or Construction
- Circular / Tubular
- 4 Panel
- U Panel
- Baffle
By Application
- Food Grade Bags
- UN Bags
- Multi-Trip Bags
- Chemical Bags
- Conductive or Static Dissipative Bags
- Valve Bags or Liquid Bags
By Fabric Electrostatic Classification
- Type A – No Electrostatic Protection
- Type B – Surface Breakdown Voltage of <6kV
- Type C – Electrically Conductive or Groundable
- Type D – Static Dissipative
There are many common types of FIBCs available in the market place. The most commonly used bulk bags are constructed in the U Panel or Circular configuration and might incorporate a simple PE liner or no liner at all. Much of how bulk bags are referred to has to do with their construction, i.e., 4 Panel, U Panel, Circular, or their application, such as Type B, or Baffle Bags.
Yes, however, bulk bags will degrade as a result of UV exposure. A standard bulk bag has a UV inhibitor added into the fabric at the manufacturing level. Manufacturers add enough UV inhibitor to resist UV rays for approximately 1600 hours. Although this is dependent upon where the actual bag is located and what type of weather conditions, sometimes extreme, can happen in this region. UV rays vary in strength and degree in different parts of the world. Therefore, storing bulk bags outside is not recommended, but we do realize that it happens.
UVI stands for Ultraviolet Inhibitor, which is an additive that is added to the resin during the extrusion process. It assists in protecting the bulk bag from the harmful effects of UV rays, protecting it from degrading and becoming unstable and unsafe.
A standard bulk bag is rated at a 5:1 Safety Factor Ratio as per ISO 21898 norms, which means that the bag is specified to hold 5 times the amount of the bag’s safe working load. A 5:1 Safety Ratio is for single-use or single trip bags. Bags that are designed for multi-use or multi-trip bags are made with an increased SF ratio. The SF for a multi-trip bag is 6:1.
SWL is an abbreviation for the safe working load. A bulk bag’s safe working load is the amount of weight that the bag is rated and tested to hold safely.
Yes, many types of polyethylene bulk bag liners are used to line the interior of an FIBC. Other more exotic materials include polyamide (nylon), various metallic foils, carbon-infused plastics, polyester, and more.
The most common material used in FIBC bag construction is 100% virgin polypropylene, petroleum-based product which is a tough relatively inert thermoplastic.
FIBC stands for Flexible Intermediate Bulk Container. They are more commonly known as Bulk Bags. The packages are classified as intermediate containers because of their size; typically having filled weights between about 500 and 4000 pounds. Bulk bags are not small enough to be moved easily by hand, however not large enough to be classified as a full bulk container, such as a truckload or railcar. FIBCs were originally developed in Europe in the 1970s, but were widely adopted thereafter in the Americas and other developing industrial nations. Use of FIBCs today permeates nearly all industries, where dry bulk solids are handled including food, chemicals, and even pharmaceuticals.
Send an Email to [email protected] to determine which of the following best suits your needs for your product:
- Style of bag
- Fabric weight
- Type of top and bottom openings
- Dimensions of the FIBC
- Safety ratio desired
- The weight you desire in the bag
- How many times will the bulk bag be used
- Any extra information that you feel is important
Yes, bulk bags are traceable by lot numbers given at the time of manufacturing. Each bag has a specific lot number associated with its manufacturing date and lot.
Yes, our company is ISO 9001:2015 and ISO 22000:2005 certificated.
You deserve the highest quality contract manufacturing and packaging every single time.
This is why our industry-leading quality system extends throughout the supply chain – from product receipt to final delivery – at every of our facility.
This ensures quality products and timely delivery you can count on.
Complete traceability comes standard here, along with full ISO 0001. You also have access to our innovative in-house labs for verification and testing solutions. We have a proven track record of creating smart, go-to-market solutions – all supported by a robust quality system.
With our mission to help our customers cut down the converting costs, we don’t believe in over-priced strategy.
We have been striving to do our best to keep the price as low as possible without sacrificing quality, for instance, our critical components are designed, manufactured and assembled in-house. Beyond that, we improve the competitiveness on manufacturing costs by actively seeking the best possible component options and manage supply chain logistics.
We hope that by giving best support on price on you, we could help ease your capital pressure and develop a mutually beneficial business relationship together.
Usually, when we get to this point in the conversation, I find one of there things are happening. Either:
You do not believe in the value we discussed,
You do not believe that what we do will provide that value,
You believe you can get the same value somewhere else for less.
Is one of those three things happening?
We can definitely have a conversation about specific numbers, but let’s make sure we’re on the same page about this solution being a good fit for your needs.
Are We The Right “Fit” For You?
Why should you choose to work with us is not because of how good we are boasting or how cheap our product seems to be.
It is because of our offer bridges your needs and our solution addresses your pain;
It is because of our product is able to achieve your desired result and performances;
It is because of our market positioning matches yours and our commitment resonates with you;
It is because of our competence to work out a proposal that springs a “before VS after” clear your worries;
It is because of our market performance and customer referral allows for your joined trust.