How to Determine Freight Class When Shipping Machinery

One of the most common items shipped today is machinery and machinery parts. As we have discussed in previous blogs, when shipping machinery or anything else LTL via common carrier it is important to determine freight class. Most machinery and machinery parts will be classified as Item 133300 with different sub numbers depending on the density and packaging.


Determine Density

Since density plays a key role in determining freight class, you need to calculate the density.


–       You have a pallet that is 48x48x60 and weighs 640 lbs.

–       You use the formula: weight/((LxWxH)/1728)

–       Step one: multiply dimensions & divide by 1728. (48x48x60)/1728 = 80.

–       Step two: Divide weight by step one result. 640/80 = 8.

–       Your item would have a density of 8 lbs per cubic foot.


Another benefit of using our TMS platform is that you could ignore the math lesson above because it will calculate your density for you automatically. For more information on density and how it is calculated, you can go to our previous blog post about determining density.


Remember to Consider Packaging Method

Once you have calculated your density, simply match up whether your item is in boxes, crates, or packaging or if it is not (such as being loose on pallets). In continuation of our example above, we are saying that the machinery we are shipping is not crated. This means that it could fall under one of the 3 listings below.


133300-06 Class-250
If the Density is Less than 8

133300-07 Class-110
If the density is 8 but less than 15

133300-08 Class-70
If the density is 15 or greater

In this example, the item would be Class 110 because the density was 8. Since the density is on the cusp of Class 110 and Class 250, the shipment could switch to Class 250 if the weight was less than indicated or if the skid was larger than indicated.


If our item in the density example was crated or in boxes, the following rules would apply, and the freight class would be 92.5.


133300-02 Class-175
If the density is Less than 8

133300-03 Class-92.5
If the density is 8 but less than 15

133300-04 Class-60
If the density is 15 or greater


Other Factors When Shipping Machinery

Also, when shipping machinery or parts during the winter months, please note that there are special considerations if the machinery has water or other freezable liquid in it.


When shipping Machinery that is a particularly high value product it is important to let your logistics provider know the value so that we can ascertain whether additional service is needed. We also understand that very often shipping machinery is a time sensitive matter since it is critical to production for many manufacturers. So if you need your shipment guaranteed or expedited talk to us about it by calling (877) 764-9441.


A lot has changed with NMFC over the years, and we keep up to date with all the latest changes. Previously in order to look at an item listing you had to sort through a thick book, and every time there was an update you would get an appendix to listings. Now we get CDs with updates. Give us a call so that we can help you correctly classify your freight at (877) 764-9441.


Categories Freight Classification | Tags: , , , | Posted on January 18, 2012

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