The Origins: Solving a Manual Labor Problem (1920–1944)

The Gradall story begins with Dutch immigrants Ray and Koop Ferwerda, who established a construction company in Ohio in 1925. Specializing in road construction, they faced a specific challenge: finish grading roadside embankments required tedious manual labor using shovels and rakes. World War II exacerbated this issue as the workforce shifted to military production, creating a labor shortage.

To solve this, the brothers invented a machine to automate the grading process. In 1944, the first Gradall rolled out of a rented garage. Unlike traditional cable-operated shovels of the era, this machine featured a hydraulically powered telescopic boom. This boom could raise, lower, tilt, and extend, mimicking the wrist action of a human worker holding a shovel.

Early Manufacturing and Expansion (1945–1958)

Recognizing the potential of their invention, the Ferwerdas partnered with Warner & Swasey Co. in 1945 to manufacture the machines. By 1950, production moved to New Philadelphia, Ohio, a location that remains the company's headquarters today.

During this period, Gradall diversified the mounting of the excavator to suit different environments:

 Truck-Mount: Allowed for highway speeds to move between municipal jobs.

 Crawler-Mount: Introduced in 1953, this allowed the machine to navigate rough terrain and confined spaces, such as steel mills.

 Railroad Variations: Models adapted with guide wheels for track maintenance.

The Era of Power and Specialization (1958–1980)

As the U.S. interstate system expanded, the demand for larger, more powerful machines grew.

 The G-1000 (1958): The largest hydraulic excavator of its time, designed for heavy highway construction.

 Vertical Digging (1967): The G-800 introduced a boom and cradle design that allowed the machine to dig vertically straight down, a standard feature for future models.

 Industrial Maintenance: The G-880SI became the global standard for steel mill maintenance, utilizing the telescopic boom to reach into furnaces for scaling operations.

The Single-Engine Revolution (1985–2006)

One of Gradall's most significant engineering milestones occurred in 1985 with the debut of the G3WD. Historically, truck-mounted excavators required two engines: one to drive the truck chassis and a separate engine to power the hydraulic excavator upper structure.

The G3WD introduced the Single-Engine Concept. By 2007, all Gradall truck-mounted excavators were powered by the chassis engine alone. This innovation reduced fuel consumption, lowered maintenance costs by 30%, and simplified the drivetrain.

Modern Innovations and Ownership (2006–2016)

In 2006, Gradall was acquired by the Alamo Group. Under this new ownership, Gradall focused on modernizing the fleet and expanding into government and municipal markets.

 Series III (2006): Introduced a unified platform for parts commonality and a shift from the traditional yellow to a grey color scheme (later reverting to yellow with Series IV).

 Discovery Series (2015): Integrated the excavator upper structure onto a standard Freightliner truck chassis, offering an economical solution for county and city governments.

In 2016, Gradall celebrated the production of its 20,000th machine, fittingly sold to the Ferwerda family, descendants of the original inventors.

 

Year Founded: 1944

Main Products: Gradall Excavator

Brand: Gradall Industries, LLC

Country of Origin: USA

Facebook Account: https://www.facebook.com/Gradall-Excavators-339628602789

Website: http://www.gradall.com/

Address: 406 Mill Ave SW, New Philadelphia, OH 44663, United States

Contact No.: +13303392211

Email: https://www.gradall.com/contact.php