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GR3005
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The GR3005 motor grader is a high-end product that integrates powerful performance, advanced hydraulic transmission, robust structure and humanized design. It represents the advanced level of domestic heavy-duty motor graders and is particularly suitable for large-scale engineering projects that have extremely high requirements for operation efficiency, equipment reliability and leveling accuracy. Whether in terms of performance, comfort or maintenance cost, the GR3005 is a highly competitive choice for medium and large-scale earthwork leveling projects.
A powerful and efficient power system：
Well-known engines: Usually equipped with Cummins or Shangchai electronically controlled high-pressure common rail engines that meet the National III/National IV emission standards. This engine features high power, sufficient torque reserve (usually ≥35%), low fuel consumption and low noise. It can easily handle heavy-load working conditions, ensuring efficient operation while also taking economy into account.
Advanced hydraulic transmission technology (core advantage)
Full hydraulic transmission: It adopts the transmission form of "hydraulic pump + motor", replacing the traditional mechanical gearbox and achieving stepless speed change.
Ease of operation: Just one handle is needed to control the vehicle's forward, backward movement and speed changes. The operation is very simple and effortless.
Automatic gear shifting: The system can automatically adjust the speed and traction force according to the load, preventing the engine from stalling and achieving higher production efficiency.
Excellent micro-motion control: Hydraulic transmission makes low-speed micro-motion control very smooth and precise, facilitating fine and flat operations.
| Item | GR3005 | ||
| Basic parameters | Engine model | QSL8.9-C325-30 | |
| Rated power/speed | 242kW/2100rpm | ||
| Overall dimension (standard) | 10615x3280x3960mm | ||
| Total weight (standard) | 28000kg | ||
| Tire specification | 20.5-25 | ||
| Ground clearance (front axle) | 450mm | ||
| Space of front and rear axles | 7617mm | ||
| Space of middle and rear wheels | 1960mm | ||
| Performance parameters | Forward velocity | 5,8,11,19,23,40km/h | |
| Reverse speed | 5,11,23km/h | ||
| Tractive effort f=0.75 | 140kN | ||
| Maximum gradeability | 30% | ||
| Tire inflation pressure | 330kPa | ||
| Working system pressure | 22MPa | ||
| Transmission pressure | / | ||
| Working parameters | Maximum steering angle of front wheel | ±45° | |
| Maximum slant angle of front wheel | ±17° | ||
| Maximum oscillating angle of front axle | ±15° | ||
| Maximum oscillating angle of equilibrium box | forwards15°, Reverse15° | ||
| Maximum steering angle of frame | ±23° | ||
| Minimum turning radius | 9m | ||
| Scrape knife | Maximum lift height | 419mm | |
| Maximum cutting depth | 438mm | ||
| Maximum tilt angle | 90° | ||
| Cutting angle | 40° | ||
| Angle of revolution | 360° | ||
| Length & chord height | 4572x686mm | ||
High-grade highways: roadbed leveling, slope trimming, and trench excavation.
Large airports: The runway foundation is leveled, and the large area of the apron is leveled.
Mine site: Maintenance of mine road surfaces, leveling of mining area operation platforms.
Farmland water conservancy: Large-scale land leveling, reservoir and embankment construction.
Industrial park: Foundation leveling of large sites.
Before starting work, check around the machine and fasten your safety belt. Idle for preheating after starting. A single handle controls the walking and the movement of the scraper (lifting, lateral movement, and rotation). Operate smoothly and avoid sudden pushing or pulling. After the operation is completed, the scraper touches the ground. After the idle speed cools down, turn off the engine and apply the parking brake tightly. For details, please refer to the random operation manual.
A: GR3005 adopts full hydraulic transmission. Compared with traditional mechanical transmission, hydraulic transmission does not require gear shifting, is more convenient to operate, can achieve stepless speed regulation, automatically adapt to load changes, has greater traction force, and offers more stable low-speed control, making it more suitable for fine and flat operations.
A: The Angle of the scraper needs to be adjusted according to the specific operation content
Leveling operation: The scraper can be set at a smaller positive Angle (with the tip facing forward), which is conducive to the forward rolling of materials and enables smooth pushing.
Slope scraping operation: It is necessary to utilize the rotation function of the scraper to form a certain Angle with the slope surface.
Soil transfer operation: A larger negative Angle (with the blade tip backward) can be adopted to increase the cutting depth and improve efficiency.
Principle: Start with a small Angle and make fine adjustments based on the actual effect and engine load to avoid engine stalling or severe impact on the equipment due to an overly large Angle.
A: Possible reasons include:
Improper tire pressure: Excessive pressure can reduce the ground contact area and cause skidding. If the pressure is too low, the resistance will be too large. Inflation should be carried out at the pressure specified in the manual.
The differential lock is not activated: When working on muddy and soft roads, the differential lock should be activated to prevent one side of the wheels from slipping and enhance the ability to get out of difficult situations.
The blade cuts too deep: The load is too heavy, exceeding the traction force of the engine. The blade should be appropriately raised or the cutting Angle reduced.
The transmission gear is too high: Under heavy-load conditions, a low gear should be used to provide greater torque.
A: The cab design is humanized, featuring spacious interior, good sealing and low noise. Equipped with a suspended seat, pilot hydraulic control (the handle operation force is very light) and panoramic view, it can significantly reduce the fatigue of the operator during long working hours.
A: Convenient. The layout of key maintenance points is reasonable and easy to access. It can also be optionally equipped with an automatic centralized lubrication system, which can automatically apply grease to each hinge point with one click, significantly reducing the time and labor costs for daily maintenance.
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