Puncture resistance tests how well the box can handle the impact made with a pyramid or triangularly shaped weight. F: 301.223.8247. Here's what to consider when storing shipping boxes for future use. 
This will not matter if your primary concern is stacking and palletizing, but can make a big difference if your box is handled roughly during delivery. Choosing the right corrugated material for your box depends on a few factors: There are two common methods for measuring corrugated material strength in the carton industry: the Burst (Mullen) Test, and the Edge Crush Test (ECT). increases the cost of operations. Historically, the long time industry standard has been the Bursting (Mullen) Test, which is related to the rough handling durability of corrugated material. On average, the 275# Burst Test rated single wall carton will weigh 175 pounds per 1000 square feet of material used. The depth is how far you can reach into the box, and is the distance measured perpendicular to the length and width. The difference in weight because of the retained water is known as the Cobb value. 
to cover their costs. In other words, every square foot of the final corrugated material must contain at least the minimum amount of base paper material required by the standard for its Burst Test rating. The 200# test box is rated to hold up to 65 lbs. That is, the Burst Test requires that the base papers used to make corrugated fiberboard weigh at least a certain minimum number of pounds per given unit area. When measuring, fractions are rounded up or down to the nearest inch. There is the Sutherland Rub Test, which is an industry-standard testing procedure. ECT Edge Crush Test - the amount of force needed to crush an on-edge specimen of combined board is a primary factor in predicting the compression strength of the completed box. Since January, 2015 UPS and FedEx have been charging for domestic ground shipments based on dimensional weight to reflect both the size and weight of the shipment. warehouses - PSI is a diverse and dedicated partner for megacorporations and small ECT gives you an accurate idea of a boxs strength when they are stacked and shipped by pallets. 
Thin boards with dense flutes have a high grammage. Also, an ECT rated corrugated box uses less material than its equivalent Burst Test rated box, to provide an equivalent level of strength. The fundamental difference between the two tests is that under the Burst Test a minimum board basis weight is required. If the box design makes use of inner supports, such as wood support or corrugated board cushioning, then such factors are also taken into account. Intelligent processes to leave your competition behind. Burst Strength of 200 lb.
The following chart shows Bursting Test and Edge Crush Test performance standards of corrugated box liners based on the combined weight of a box and its contents. The stamp identifies the material as singlewall, doublewall or triplewall.. Why E-Auction Is The Future Of Smart Sourcing? (Void Fill, Bubble, Foam, Paper). The announced increases from FedEx are further indication that this issue is real, is not going away. With three production facilities, a dedicated corrugation plant and five private Most companies rely on tuck boxes for both delivery and stylish appearances. A Mullen-tested box rated at 200# can withstand 200 pounds per square inch of force applied directly to the linerboard on the face of the carton. These grooves and ridges, also known as flutes, provide anisotropic strength to a box. If you want your products shipped from point A to point B with little to no damage, you need to use efficient boxes. Packaging is more than just a protective encasement for your products. This is because corrugators may use one of many different recipes to make each type of corrugated. 
Learn how right-size packaging and efficient materials can ensure items arrive safely without incurring undue cost. To understand stacking strength, you need to look at Edge Crush Test (ECT) ratings. F: 570.929.1845, 16461 Elliott Parkway FOR QUESTIONS OR SUPPORT CALL: 833-726-8376. For excellent graphic reproduction, consider E-flute. Grammage and thickness are the two most fundamental properties of the corrugated fiberboards that determine the quality of the box. Digital Production Planning and visibility, End-to-End Tech-Based Procure-to-Pay Solutions. We put heavy contents in them and then stack cartons on top of each other. recommended box size. This translates into fewer raw materials, lower energy requirements, and reduced pollution, in all stages of the packages life cycle. This test is crucial to check the strength of boxes and is required by most industries transporting boxes in bulk. The corrugated box testing standards for puncture resistance include FEFCO 5 or ISO 3036. 2021 Pantero, Inc. Understanding Corrugated Material Strength Ratings: Burst Strength vs. Generally, a thin sheet with grooves and ridges is sandwiched between two flat sheets. Mullen Test vs. ECT: which rating should you use when selecting material for your corrugated boxes? 
Kyanas Dimensional Weight Planner will use your box size and wall thickness (single, double or triple wall) to give you an estimated dimensional weight, but remember, the parcel Alternative corrugated box testing methods are also available to test resistance to abrasion. During shipping, they may be at the bottom of a heavy pallet or stacked among boxes of different weights and sizes on a delivery truck. If you are shipping individual boxes and are concerned about rough handling conditions, you may be better off with Mullen-tested cartons. Connellsville, PA 15425, P: 724.626.0100 Corrugated shipping cartons are subjected to a lot of different kinds of strain during packing, shipping and storage. If you used our "Right Size Your Box" calculator above, we have run the calculation for you with the In the Ring Crush test, a ring cut out from the box is used to test the same. For certain applications, the FEFCO 9 standard is used to test the water-resistance of the gluing of the corrugated cardboard boxes. There is no best grammage or thickness mentioned in corrugated boxes specifications and it is completely based on your requirements. B-flute is compressed and appears thinner, but dont be fooled. The Cobb test is required for certain certifications, especially those involving hazardous material packaging. Tuck boxes mostly suit packing, so products stay safe and secure. For example differing formulas for a 200# single wall corrugated will cause the equivalent ECT board to vary between 32 ECT and 44 ECT. One of the most popular methods to test the stacking strength of corrugated boxes is the Edge Crush Test or ECT. This means the boxes can bear a greater amount of force from one direction. carriers will also measure any bulges or flaps that are not completely closed. Let's take a closer look at how each test is done, how they compare and how to understand ratings from each type of test. On the other hand, an excessive box means you pay extra for material and add to environmental wastage. It's also a canvas that enables you to show off your brand's charm. 
Thickness is usually measured in (millimetres) mm and grammage is expressed in terms of grams per square meter (g/m2). While there are charts that show conversions between Mullen Test and ECT ratings, it is important to remember that the tests are not equivalent. They measure completely different things. 
Learn how integration of technology in supply chain impacts your business. by an average of 4.9% (effective January 4, 2016).
per square inch) or the Edge Crush Test (ECT 32 lbs. The strength of a corrugated box starts with its material. Hence, knowing the type of corrugation is important before you make a decision. It would be equivalent to a carton with an ECT of 32 or higher, and the bursting test is more of a true measure of rough handling.
ECT has grown in popularity since its invention in the 1990s because it provides a better measure of how well boxes will hold up to stacking and palletizing. 
This can cost time and money, and hinder your business's ability to get packages out the door and into customers' hands. Copyright 1996-2022 IndiaMART InterMESH Ltd. All rights reserved. These measurements always relate to the inside dimensions of the box. Thank you! Unlike Mullen Test ratings, ECT ratings do not require a minimum amount of base paper in the corrugated material. 
Thicker ones are more sturdy and appropriate for heavy-duty shipping. per inch). of box and contents. Or, the Box Compression Test helps determine stacking strength thats especially important when shipping and transportation. Even though the fiberboard itself can absorb and retain water, testing the water-resistance of gluing or sealing is also important. We are ready to partner with you to provide the right packaging solutions to reduce and optimize your package sizes. This is a true performance test and is directly related to the stacking strength of a carton. The boxes are tested in different orientations. 
If you are stacking and palletizing your cartons, ECT provides a better measure of how well they will hold up in a stack. A corrugated sheet consists of two major components linerboard and medium. 
However, it is important to know that the above results (overall strength of a box) may vary based on the makeup of each corrugated sheet. 
The Mullen Burst Test is geared towards measuring the forces a carton may be subjected to during rough handling as well as the amount of weight the box can hold. This is an initial recommendation. Coated surfaces such as paper, films, paperboards and all other printed materials are tested using this procedure. In addition to the increase in surcharges for packages that exceed maximum dimensions, FedEx has increased shipping rates for Express, Ground, Freight, and Home Delivery 41% were seeing increases of 10-20%. dimensional weight. 
Edge Crush Testing, How To Customize Packaging for Your E-Commerce Business, What To Consider When Storing Shipping Boxes, The Difference Between Straight Tuck and Reserve Tuck Boxes. Whether you run a business or work in a warehouse, having the proper shipping equipment is necessary. Shippers must also account for the bulge: If the package is over packed or misshaped (out of square), the carriers will use the longest dimensions that their scanners will see. This can help companies reduce shipping costs and improve environmental metrics. Something went wrong while submitting the form. Burst Test results are given in pounds per square inch. UPS is also raising rates, with a 4.9% average increase for Freight (effective October 26, 2015), a 4.9% average increase for Ground (effective December 28, 2015), and a 5.2% A newer standard that has achieved widespread acceptance is the Edge Crush Test (ECT). For example, if you are shipping a product that weights between 25-40 pounds, a 32 ECT single-wall carton should be sufficient, in most cases. For example, a sharp growth in e-commerce means that many light weight items are shipped in larger than appropriate boxes which takes up space on shipping vehicles and therefore 32 ECT is the most commonly used corrugated material. The length and width are the opening dimensions of the box, and the length is always the larger of the two (unless they are equal). First impressions matter. What is the maximum weight that may be stacked on top of your box during bundling, palletizing or warehousing? average increase for Air (effective December 28, 2015). significantly increase the cost of doing business. These tend to provide better protection against damage from external forces (such as dropping, kicking or punctures) than boxes with an equivalent ECT rating. Of those we surveyed, 83% indicated that dimensional weight pricing will impact at least 25% of their customers freight costs. That is to say, they vary a lot in terms of compressive strength, thickness, chemical resistance, and other factors. In this testing procedure, a rubber diaphragm is used to apply pressure to the walls of the corrugated box until it bursts. When estimating your freight, use the greater of the box actual weight or dimensional weight. While in the flat crush test, excessive force is applied on one side. Your business has an abundance of boxes that need storing.
A box too weak might puncture or collapse. Some of its features include choice of custom developed sizes, different artwork possibilities using embossing, glossy lamination, matt lamination and other techniques, can be provided with logo/design support as demanded by customers; print options of oil-printing/water-printing among others. Corrugated cartons are low cost, durable, and eco-friendly. Heres a round-up of common corrugated box testing methods used to check the strength of corrugated boxes. It gives us a good idea of how many boxes can be stacked together without damaging the contents of the lowermost box. For example, a single-wall corrugated cardboard box with a 275# Mullen Test rating must contain at least 175 pounds of base paper per 1,000 square feet of corrugated material.
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