Brand New and Fully Refurbished Heavy-Duty Motor Graders for Sale from China

A grader (commonly called a motor grader) is a heavy-duty construction machine featuring a long, adjustable moldboard blade positioned between the front and rear axles. It is the industry standard for precision leveling, earth paving, bank sloping, and surface finishing before asphalt or concrete is laid.

Types and Categories

Graders are categorized by their frames and steering mechanisms into two main configurations:

• Rigid Frame Graders: Feature a single, straight chassis with traditional front-wheel steering.
• Articulated Frame Graders: Feature a hinge mechanism between the front and rear axles. This type delivers a tighter turning radius and allows the operator to offset the frame for specialized grading

Core Parameters

When evaluating or selecting a grader for a project, industry professionals rely on these fundamental specifications:

• Engine Power (Horsepower): Typically ranges from 70 HP to 500+ HP. Higher horsepower machines (e.g., 200+ HP) are required for heavy-duty earthmoving and rock ripping.
• Operating Weight: Ranges from 10,000 kg to over 25,000 kg. Greater weight provides crucial downward pressure and structural stability.
• Moldboard (Blade) Width: Standard sizes vary from 10 ft to 14 ft, with heavy-duty mining models extending up to 24 ft.
• Blade Control Systems: Graders operate via traditional mechanical levers or advanced joysticks, and frequently integrate GPS or Laser-Guided Systems for millimeter-level accuracy (e.g., ± 3 mm).

Structural and Operational Advantages

• High Precision: Integrates advanced GPS and 3D laser guidance systems for exact millimeter-level surface leveling.
• Great Mobility: Navigates tight curves and angled embankments easily using articulated frames and multi-axis blade manipulation.
• Multi-Task Versatility: Substitutes standard blades for front scarifiers, rear rippers, or snow plows to tackle distinct site demands.
• Superior Operator Control: Features enclosed cabins with joysticks, 360-degree visibility, and electronic blade pitch adjustments

Application Fields

Graders are indispensable across a wide variety of infrastructure and industrial sectors:

• Road Construction and Maintenance: Shaping sub-grades, establishing cross-slopes, and fine-grading asphalt/gravel to ensure smooth, long-lasting roads.
• Mining Operations: Maintaining vital haul roads, prepping equipment pads, and managing drainage to ensure the safety and efficiency of heavy mining trucks.
• Airport Construction: Creating perfectly flat, sloped surfaces for runways to guarantee safe aircraft operations.
• Landscaping and Agriculture: Leveling large tracts of land, preparing building foundations, and managing field irrigation.
• Winter Operations: Equipped with snowplow attachments to efficiently clear rural and urban roadways.