truck anatomy

Knowing Your Truck: the Anatomy of a Semi

If you are new to trucking, all of them can look the same. Each one has big seats, huge wheels, massive engines, and the ability to carry a lot of stuff. However, a commercial truck is actually incredibly nuanced, and knowing the details of a semi’s anatomy will help you learn what you need in your next truck, or who you need to hire.

The Cab

Generally, there are three styles of truck cab: the conventional design, cab over engine, and cab beside engine. In America, the standard semi places the cab behind the engine, which gives them the “long-nosed” appearance. This allows for larger cabs and stronger trucks that can pull multiple trailers. Additionally, there is an option between day cabs and sleeper cabs. “Sleepers” include space behind or above the cab where drivers can rest during their downtime. In top-of-the-line semi trucks, drivers have a separate room with a twin bed, refrigerator, and storage spaces for his or her belongings. At the very least, the driver’s seat will fold into a horizontal position.

The Trailer

Trailers come in many shapes and sizes, so you can pair your chosen cab with various trailers to complete different jobs. The semi-trailer makes up the typical 18-wheeler. It is the long, enclosed storage space used in most transportation. It can be refrigerated for perishable goods to be transported. You can also choose a flatbed, for hauling items like lumber.  

The Engine

Not long ago, nearly all heavy-duty trucks were powered by large diesel engines. However, the worldwide push for fuel efficiency and alternative energy has created great diversity in how big rigs run. Today, you can find trucks with hybrid engine options mixing traditional diesel power with electric or hydrogen power, which will get you much farther using much less fuel.

The engine and cab combined form the “tractor.” The tractor is connected to the trailer for a complete semi, ready to go out on the road.

The Frame

Typically made from steel, the tractor’s frame takes the shape of a ladder with two or three rungs of axles, depending on the size of the engine and cab. Semi-trucks use front-wheel drive, but most trucks offer the possibility to connect front and rear axles for four-wheel drive. The back axle(s) of the tractor use dual wheels, which means there are four wheels per axle. This means a tractor can have up to 10 wheels spinning at once!

When you need a semi-truck to pull your load, you need Triangle J inc! We are a fully-licensed, bonded and insured transportation brokerage company that utilize only quality, “A” rated carriers and private fleets to secure consistent service and reliability. Each carrier is put through an intensive background check before they will qualify to pull one of our loads. Call us today at 1-866-358-7695 to learn more.

jobs for truck drivers

Tags: No tags

Add a Comment

Your email address will not be published. Required fields are marked *