VOLVO Motor Grader Productivity Defined

Motor graders are often discussed in terms of weight and horsepower specifications. These specifications indicate the size of the machine but say nothing about grader productivity. At Volvo, we know that grader productivity is measured by the work graders do — cutting and pushing. Grader productivity is not simply a function of weight and horsepower, but more importantly, where the weight is placed and how it is applied to the ground.

Grader capability

Unlike other construction equipment, the business end of a grader is in the middle. At Volvo, we build graders to distribute the weight where it translates into more cutting capability at the blade edge.
Since the weight of all motor graders is concentrated at the back of the machine, Volvo engineers have moved the blade as far back toward the rear of the machine as possible. This takes advantage of the rear weight but is still well within the operator’s line of sight. Volvo recognized the importance of a long bladebase many years ago, and as a result, our graders offer the highest cutting capability.
The other secret to proper weight distribution is at the rear of the machine. By strategically positioning the powertrain components, we get even distribution of weight to each rear driven wheel. This optimizes the machine’s pushing capability.

Blade down force

The calculation of “Blade Down Force,” or cutting capability, identifies two things as important in determining cutting capability – front weight and a long bladebase. Volvo graders combine lots of weight up front with a long bladebase to optimize the amount of machine weight that can be applied to the ground at the blade edge.

Pushing capability

Pushing capability, too, is a function of weight and where it is placed.
Seventy percent of the grader’s weight is at the rear. Distribution of that weight to best apply it to the drive wheels is critical. By positioning the powertrain components strategically, Volvo graders apply more power to the ground.

Grader Productivity

• Long bladebase for optimum blade down force.
• Strategic positioning of power train components provides optimal weight distribution.

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