Understanding How a Crawler Crane Works

Different cranes have different purposes. Naturally, each crane has its own operating and service requirements. For example, while some can be driven on roads, others must be assembled at the jobsite. One of the most common cranes used today is the crawler crane. Understanding how a crawler crane works is vital for large construction jobs with heavy lifting involved.

Structure

The basic structure of crawler cranes is that they’re composed of a standard cab mounted on a crawler undercarriage. The undercarriage uses tracks instead of wheels to handle the terrain in construction sites. Additionally, the upper deck rotates a full 360 degrees, and it features a box or lattice boom with optional extension. It also has a wire rope with a hook, grapple, or other attachment at the end of the boom.

Mobility

As previously mentioned, crawler cranes use tracks for movement, such as those found on a tank. Unlike other cranes, crawler cranes do not use outriggers for stability. The lattice boom is lighter than booms found on other cranes, so crawler cranes have a wider operating radius due to the lesser boom weight. Still, crawler cranes cannot move from site to site due to their great size. Often, they must be assembled on site, and they may need an assist crane for unloading. Fortunately, renting out a crawler crane will save on the time and cost needed for delivery and maintenance.

Lifting

While the lattice boom is lighter than others, it still offers great lifting to the crane. Crawler cranes can lift over 600 tons. They are efficient for large-scale construction projects. Likewise, due to their size, these machines primarily act as stationary lifts in a confined workspace. Despite this limitation, crawler cranes still provide a great option where heavy lifting is required. Its design and weight distribution allow for a wide work radius without the use of outriggers for support.

Whichever type of crane you need for your project, we at Ness Campbell Crane + Rigging have them ready for service. We offer some of the best lifting and crane rentals in the Portland, Oregon area. Check out our section of premium machines for your job and leave the rest to us.