Welcome to Rock Tools Attachments


Even though there are many different makes of excavators, they all share the same basic components. Every excavator is sure to include an undercarriage, house, and arm. Excavator attachments can be switched out when needed, as well. Find out more about the common components of excavators and how they interact here. 

About Hydraulic Excavators

Excavators are a common type of heavy machinery used for various construction projects. They are extremely versatile because of their ability to rotate a full 360 degrees. An excavator’s arm includes multiple attachments that make it easy to work on any job. Though it typically is outfitted with a blade that helps dig ditches and excavate materials. Other jobs performed by hydraulic excavators are creating grooves for pipes and drains, moving and loading materials, and digging foundations.

Excavator Attachments and Components

Excavators are adaptable to many projects because of their components and attachments. The most common excavator attachments and components are:

The undercarriage, which includes the tracks, track frame, engine, and gearing system. Essentially, the undercarriage components are what makes the excavator move and rotate. The gearing system includes the final drive unit which helps to transmit power to the engine. This is what allows the tracks to move and turn individually. 

The cab, where the operator sits, is located above the undercarriage in the “house.” The cab offers a full view of the surrounding area so the operator can dig, move, and discard materials as needed. The operator uses a series of controls and gauges to move and rotate the excavator. They must also use the pedals and levers located inside the cab to direct and rotate the undercarriage.

The counterweight, like the cab, is located in the house of the excavator. The counterweight’s job is to keep the excavator from tipping over. Since the excavator moves heavy materials on its front end, it has a high chance of being thrown off-balance. Therefore, proper counterweight is needed to stabilize the machinery. The counterweight is an essential component of any excavator.

The hoe includes the hydraulic boom arm, dipper arm, and bucket. While in the cab, the operator can move the hoe using the control panel. The hydraulic boom arm includes two cylinders that move the arm vertically. Though some excavators also include boom arms that pivot horizontally, this is less common. The bucket at the end of the dipper arm helps lift and move materials like dirt, stone, and concrete.

Excavator attachments can also be added to the arm. These optional attachments allow the excavator to work on different types of jobs. Excavator operators can quickly fit and remove attachments based on the project’s needs. For example, an excavator can break rocks using a hammer attachment or lift lumber using a grapple attachment. There are also attachments used for paving, digging holes, and making foundational bases.

To find the best excavator attachments for your construction project, contact Rock Tools. From rock saws and grinders, to simple bucket choices, outfit your excavator with the attachment you need for any project.