Excavator

Excavators are heavy construction equipment consisting of a boom, stick, bucket and cab on a rotating platform (known as the "house"). The house sits atop an undercarriage with tracks or wheels. A cable-operated excavator uses winches and steel ropes to accomplish the movements. They are a natural progression from the steam shovels and often called power shovels. All movement and functions of a hydraulic excavator are accomplished through the use of hydraulic fluid, with hydraulic cylinders and hydraulic motors. Due to the linear actuation of hydraulic cylinders, their mode of operation is fundamentally different from cable-operated excavators.

Bulldozer

A bulldozer is a crawler (continuous tracked tractor) equipped with a substantial metal plate (known as a blade) used to push large quantities of soil, sand, rubble, etc., during construction or conversion work and typically equipped at the rear with a claw-like device (known as a ripper) to loosen densely-compacted materials.

Bulldozers can be found on a wide range of sites, mines and quarries, military bases, heavy industry factories, engineering projects and farms.

The term "bulldozer" is often used erroneously to mean any heavy equipment (sometimes a loader and sometimes an excavator), but precisely, the term refers only to a tractor (usually tracked) fitted with a dozer blade. That is the meaning used here

United Tractors

The Bruder Caterpillar Track – Type Tractor Construction Toy is the Bruder truck that handles the BIG jobs! This Bruder Caterpillar Track – Type Tractor Construction Toy is made from high-quality plastics, which makes it easy for kids to lift and move dirt and sand with the tough front blade – which can be raised or lowered and angled to the left or the right. This Bruder Caterpillar Tractor toy also includes an adjustable ripper in the rear that can be replaced with other Bruder accessories (sold separately), individually-linked plastic tracks with authentic look and sound, and included rubber treads that can be fitted for use on slippery surfaces. The Bruder Caterpillar Track – Type Tractor Construction Toy is a monster of a machine! Measures approximately 12”L x 5.75”W x 6”H.