Hey there! As a supplier of tank semi-trailers, I’ve had my fair share of dealing with different types of tank heads. Tank heads are super important parts of a tank semi-trailer. They’re at the ends of the tank and play a big role in how well the tank works and how safe it is. Let’s take a look at the different types out there. Tank Semi Trailer

1. Hemispherical Tank Heads
First up, we’ve got the hemispherical tank heads. These are shaped like half a sphere. They’re pretty cool because they can handle a lot of pressure. When you’ve got a tank that needs to store high-pressure liquids or gases, hemispherical heads are a great choice.
The reason they’re so good at handling pressure is their shape. The spherical design distributes the pressure evenly across the surface. This means there aren’t any weak spots where the pressure could cause the tank to fail. It’s like a well-built dome that can withstand a lot of force from the inside.
But there are some downsides too. They’re a bit more expensive to make compared to other types of tank heads. The manufacturing process is more complex because of the curved shape. And they also take up more space, which can be a problem if you’re trying to fit the tank into a tight area.
2. Ellipsoidal Tank Heads
Next, we have the ellipsoidal tank heads. These are shaped like an ellipse, which is kind of like a squished circle. They’re a popular choice for a lot of tank semi-trailers.
One of the main advantages of ellipsoidal tank heads is that they’re a good balance between strength and cost. They can handle a decent amount of pressure, but they’re not as expensive to make as hemispherical heads. The shape also allows for a larger volume inside the tank compared to some other types of heads.
Another plus is that they’re relatively easy to manufacture. The curves are not as extreme as those of a hemispherical head, so the production process is a bit simpler. This makes them a practical option for many tank applications.
3. Torispherical Tank Heads
Torispherical tank heads are also known as flanged and dished heads. They have a shape that combines a flat section (the flange) and a curved section (the dish).
These heads are great for tanks that don’t need to handle extremely high pressures. They’re cost-effective and relatively easy to install. The flat flange part makes it easier to attach the head to the tank body.
One thing to keep in mind is that they have a slightly lower pressure rating compared to hemispherical or ellipsoidal heads. But for many common tank applications, they work just fine. They’re often used in tanks for storing non – hazardous liquids or in situations where the pressure requirements are not too high.
4. Flat Tank Heads
Flat tank heads are the simplest type. As the name suggests, they’re just flat plates. They’re the cheapest option to manufacture.
However, they’re not very good at handling pressure. The flat surface doesn’t distribute pressure well, so they’re mainly used in low – pressure applications. You might see them in small tanks or in situations where the pressure inside the tank is very low.
They’re easy to make and install, but you have to be careful not to use them in situations where the pressure could cause the head to deform or fail.
5. Conical Tank Heads
Conical tank heads have a cone – shaped design. They’re useful in some specific applications. For example, if you need to drain the tank completely, a conical head can help with that. The shape allows the liquid to flow towards the bottom of the tank and out through the drain.
Conical heads can also be used in tanks where you need to change the diameter of the tank gradually. They can be a bit more difficult to manufacture compared to some of the other types, but they offer unique benefits in certain situations.
Choosing the Right Tank Head
So, how do you choose the right tank head for your tank semi – trailer? Well, it depends on a few things.
First, think about the pressure requirements. If you’re dealing with high – pressure liquids or gases, you’ll probably want to go with a hemispherical or ellipsoidal head. If the pressure is lower, a torispherical or flat head might be sufficient.
The volume of the tank is also important. If you need to maximize the volume inside the tank, an ellipsoidal head could be a good choice. And if you need to drain the tank easily, a conical head might be the way to go.
Cost is another factor. If you’re on a tight budget, a flat or torispherical head might be more suitable. But if you can afford it, a hemispherical or ellipsoidal head could offer better long – term performance and safety.
Our Experience as a Supplier
As a tank semi – trailer supplier, we’ve seen a lot of different customer needs. We’ve worked with customers who need high – pressure tanks for transporting chemicals and others who just need a simple tank for storing water.
We always take the time to understand our customers’ requirements. We ask about the type of liquid or gas they’ll be transporting, the pressure requirements, and the space available. Based on this information, we can recommend the best type of tank head for their specific situation.
We also offer customization options. If a customer has a unique requirement, we can work with them to design and manufacture a tank head that meets their needs. Whether it’s a special shape or a specific material, we’re up for the challenge.
Why You Should Choose Us
When it comes to choosing a tank semi – trailer supplier, there are a few reasons why you should consider us.
First, we have a lot of experience in the industry. We’ve been in business for a long time, and we’ve built a reputation for providing high – quality products. Our team of experts knows a lot about tank heads and can help you make the right choice.
Second, we offer competitive prices. We understand that cost is an important factor for our customers, so we try to keep our prices as low as possible without sacrificing quality.

Finally, we provide excellent customer service. We’re always available to answer your questions and help you with any issues you might have. Whether it’s before, during, or after the purchase, we’re here to support you.
Container Semi Trailer If you’re in the market for a tank semi – trailer and you’re not sure which type of tank head is right for you, don’t hesitate to get in touch. We’d be happy to have a chat with you and help you find the perfect solution for your needs.
References
- ASME Boiler and Pressure Vessel Code
- API Standards for Pressure Vessels
- Industry research on tank semi – trailer design and manufacturing
Shandong Tenda Vehicle Co.,Ltd
As one of the leading tank semi trailer manufacturers and suppliers in China, we warmly welcome you to buy high-grade tank semi trailer for sale here from our company. All our products are with high quality and competitive price.
Address: Jinan City, Shandong Province, China
E-mail: eric@tendatrailer.com
WebSite: https://www.tendatrailer.com/