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3" & 4" Bottom Loading Arms

As a manufacturer of high-quality loading arm systems and accessories, Excel Loading Systems provides high-quality liquid bottom loading systems engineered for the safe and efficient loading and unloading of gas and liquid from trucks, railcars, and totes.

Our 3" & 4" bottom loading arms offer a number of advantages, such as:

  • Increased safety because an operator can remain on the ground
  • Less disruption in tank compartments decreases the generation of static electricity
  • Can load multiple compartments simultaneously which improves efficiency easy to build and assemble
  • Fast loading and unloading times
  • Can be connected via cam and groove fitting, dry disconnect, API coupler, or hammer unions

Bottom-loading arms are used to transfer liquids in a wide range of industries including chemical, refinery, food and beverage, and dry bulk.

Bottom Loading Arm Types

Bottom loading arms play an essential role in the transferring of both toxic and non-toxic materials. At Excel Loading Systems we take the transfer of chemicals seriously. Therefore, we offer a number of specific types of bottom loading arms to ensure that our clients can obtain the product the best fits their needs.

View our bottom loading arm types below:

Liquid Bottom Loading Systems

To be most effective, a bottom loading system must have ample horizontal range to reach the farthest compartment without needing to move the vehicle.  Adequate vertical movement and drop-pipe lengths to service vehicles of varying heights is also necessary.  A properly designed top loading system can provide protection and achieve this requirement.   At Excel Loading Systems, we know that customizability is the best way to supply our customers with these components.  For this reason, each one of our bottom loading arms can come with a number of options.  We also offer sizing that ranges from 2" to 6" as well as a number of different materials. 

Some of these materials our bottom loading arms can be designed with include:

  • Carbon steel (made exclusively from domestic materials)
  • Stainless steel
  • Aluminum
  • Special Alloys

Our focus on quality, safety, and service mixed with our ability to ship products fast--typically within half the time of our competitors--is what sets us apart. All of our standard bottom loading arms are 100% domestic. We also provide installation, maintenance, training, in-field replacement and adjustment services as well as factory refurbishment

Contact us today to learn more!

100% Domestic

100% Domestic

All Standard Swivels, Elbows, Pipes, and Spring components are made in the USA

Fastest Delivery

Fastest Delivery

4 week average delivery time with the ability to expedite for rush jobs



Material Test Reports and the ability to conform to AML

Quality Service

Quality Service

In-field services, shop rebuilds, and replacement parts available

See What Our Customers Have To Say

Great service, very easy to work with.



Oil & Gas Industry

Delivered a loading arm to us in under a week. Fastest turnaround I have ever seen.


Oil & Gas Industry

Extremely knowledgeable and helpful. Easy to get there engineers on the phone and answer questions. 


Food & Beverage Industry

Extremely happy with service.


Chemical Industry

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America's Loading Arm

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