How does an IC forklift truck work?

Aug 14, 2025

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Alex Zhang
Alex Zhang
As the CEO of青岛联合众创控股有限公司, I am dedicated to leading our company in delivering high-quality electric forklifts to customers worldwide. With over 20 years of experience, we have built a strong foundation in innovation and quality.

Hey there, folks! As a supplier of IC Forklift Trucks, I'm super stoked to break down how these bad boys work. Whether you're in the market for one or just curious about the mechanics, you're in the right place. So, let's dive right in!

The Basics of an IC Forklift Truck

First off, what's an IC Forklift Truck? Well, "IC" stands for Internal Combustion. These forklifts are powered by engines that burn fuel, like diesel, gasoline, or propane. They're known for their power and durability, making them a top choice for heavy-duty jobs in warehouses, construction sites, and ports. You can check out our range of IC Forklift Truck on our website.

The Engine: The Heart of the Forklift

The engine is where the magic happens. Just like in a car, it converts fuel into mechanical energy. In an IC forklift, this energy is used to move the forklift around and power the lifting mechanism.

There are different types of engines used in forklifts. Diesel engines are popular for their high torque, which means they can handle heavy loads with ease. Gasoline engines are a bit more lightweight and can be a good option for lighter tasks. Propane engines are clean-burning and offer a good balance between power and environmental friendliness.

When the driver turns the key or presses the start button, the engine's ignition system kicks in. It sparks the fuel-air mixture in the cylinders, causing a controlled explosion. This explosion pushes the pistons down, which in turn rotates the crankshaft. The crankshaft is connected to the transmission, and that's how the power gets transferred to the wheels.

The Transmission System

The transmission system is responsible for controlling the speed and direction of the forklift. It's like the gearbox in a car. Most IC forklifts have a manual or automatic transmission.

In a manual transmission forklift, the driver has to shift gears using a gear stick. This gives them more control over the forklift's speed and power, especially when dealing with different loads or terrains. Automatic transmission forklifts, on the other hand, are easier to operate. The transmission automatically adjusts the gears based on the speed and load of the forklift.

The transmission is connected to the drive axles, which transfer the power from the engine to the wheels. This allows the forklift to move forward or backward.

The Hydraulic System: Lifting and Lowering Loads

One of the most important features of a forklift is its ability to lift and lower loads. This is made possible by the hydraulic system.

The hydraulic system consists of a hydraulic pump, cylinders, and hoses. The pump is powered by the engine and it creates pressure by forcing hydraulic fluid through the system. When the driver operates the control levers, the fluid is directed to the hydraulic cylinders.

The hydraulic cylinders are like big tubes with a piston inside. When the fluid enters the cylinder, it pushes the piston up, which in turn raises the forks. To lower the forks, the driver simply releases the control lever, and the fluid flows back to the reservoir.

The hydraulic system is incredibly powerful and precise. It allows the forklift to lift heavy loads with ease and place them exactly where they need to be.

The Mast and Forks

The mast is the vertical structure on the front of the forklift that supports the forks. It can be raised and lowered using the hydraulic system. There are different types of masts, including single-stage, two-stage, and three-stage masts. The more stages a mast has, the higher it can lift the forks.

The forks are the part of the forklift that actually picks up the load. They're made of strong steel and can be adjusted to fit different sizes of pallets or loads. The driver can tilt the forks forward or backward using the control levers. This helps to secure the load and prevent it from falling off.

Steering and Control

Steering an IC forklift is a bit different from steering a car. Most forklifts have rear-wheel steering, which means the back wheels turn to change the direction of the forklift. This gives the forklift a smaller turning radius, making it more maneuverable in tight spaces.

The driver uses a steering wheel to control the direction of the forklift. There are also control levers for the hydraulic system, which allow the driver to lift, lower, tilt, and side-shift the forks.

In addition to the steering and control levers, there are also pedals for accelerating, braking, and shifting gears (in a manual transmission forklift). The driver has to be very careful and precise when operating the forklift to ensure the safety of themselves and others.

Safety Features

Safety is a top priority when it comes to operating an IC forklift. That's why these forklifts are equipped with a number of safety features.

One of the most important safety features is the seatbelt. Just like in a car, the driver should always wear a seatbelt when operating the forklift. This helps to prevent them from being thrown out of the seat in case of an accident.

There are also warning lights and alarms on the forklift. These lights and alarms indicate when there's a problem with the forklift, such as low fuel, high engine temperature, or a malfunction in the hydraulic system.

The forklift also has a horn, which the driver can use to alert others in the area. And there are mirrors on the forklift to help the driver see what's behind and around them.

Applications of IC Forklift Trucks

IC forklift trucks are used in a wide range of industries. In warehouses, they're used to move pallets of goods from one place to another. They can lift heavy loads and stack them on shelves or in storage areas.

In construction sites, forklifts are used to lift building materials, such as bricks, lumber, and steel beams. They can also be used to transport equipment and supplies around the site.

At ports, Container Handling Forklift are used to load and unload containers from ships. These forklifts are specially designed to handle the large and heavy containers.

IC Forklift Truck5-10 Ton Diesel Forklift

And for heavier loads, our 5 - 10 Ton Diesel Forklift is a great choice. It can handle loads up to 10 tons, making it ideal for industrial applications.

Conclusion

So, there you have it! That's how an IC forklift truck works. It's a complex machine, but it's also incredibly useful and powerful. Whether you're in the market for a new forklift or just interested in learning more about them, I hope this blog has been helpful.

If you're looking for a reliable and high-quality IC forklift truck, we're here to help. We offer a wide range of forklifts to suit different needs and budgets. Just get in touch with us, and we'll be happy to discuss your requirements and find the perfect forklift for you.

References

  • "Forklift Operator's Manual" - Various manufacturers
  • "Industrial Forklift Trucks: Principles and Practices" - Industry publications
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