Heavy machinery

Big machines that do big jobs.

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B is for Bulldozer

A bulldozer is a powerful construction machine with a wide, heavy blade at its front. The blade pushes heavy loose materials in front of it. Bulldozers run on tracks, meaning they are less likely to sink into rough or muddy ground. Bulldozers are used to clear land, make roads, level ground, and prepare building sites.
A combine harvester is a large machine that harvests grains such as wheat, oats and barley. The combine not only removes the grain heads from the stalks, but it also separates the individual grains themselves from the heads.
The combine harvester was invented in the United States in 1834, but a commercial version was invented in Australia in 1885.
A crane is a machine that is used for lifting things. Cranes can be very small and used for moving things around in a backyard, or they can be very big and used for lifting things to the top of very tall buildings.

E is for Excavator

An excavator is a large machine used to dig and move soil, rocks, and similar materials. It has a long arm with a digging bucket on the end, attached to a platform that can turn around. You can change the buckets for different shaped ones, and excavators come in a range of sizes from mini ones to huge mining ones.

F is for Forklift

A forklift, also called a lift truck, fork truck or forklift truck is a fairly small truck that has two prongs on the front that are designed to lift things. Forklifts are commonly used for moving large boxes around inside warehouses.

G is for Grader

A grader is a large construction machine used to make the ground flat and smooth. It has a long, sharp blade mounted between its front and rear wheels.

Graders are generally used to build and maintain roads and driveways. They are also called a motor grader or road grader.

S is for Steamroller

A steamroller, or road roller, is a heavy vehicle used for flattening the ground. It has one or two very large, very heavy wheels that level out whatever surface the roller is moving over.

T is for Tractor

A tractor is a big vehicle usually driven by farmers. Tractors are used to pull ploughs and harvesters, and for pulling wagons full of hay or other loads. Tractors can be used for pulling other vehicles out of mud if they get stuck.
Tractors are designed to run on mud and dirt not smooth roads, which is why their back wheels are so big and have tyres with such deep tread.