CHARACTERISTIC of Shantui Motor Grader or Road Grader
The hydraulic pin puller cylinder can complete the operations of swing frame by merely one operator to eliminate all potential safety hazards and ease user's operations.
The structural parts inherit the excellent quality of Shantui mature products.
The electric harnesses adopt seamless corrugated pipes and deconcentrators for branching, featuring high protection grade.
The maintenance-free battery installed on the rear of the machine features high power capacity.
The core electric and hydraulic parts adopt imported products, featuring stable and reliable quality and extremely high reliability.
It features the highest traction force among the domestic motor graders of like type and the highest operating efficiency among the domestic products of like type.
The external gear working device of proprietary technology features high drive torque and strong resistance against external force impact.
The blade of larger angular adjustment range (44°-91°) improves the material control capability and remarkably promotes the operating efficiency of motor grader, especially during the handling of dry material and clay.
With full-load scraping capability in 2nd forward gear, the motor grader can remarkably promote the production efficiency compared with domestic products of like type.
With high resistance against external force impact, the link type swing frame is applicable for the working conditions with high operating volume and severe operating environment.
With 6 forward gears and 3 reverse gears, the electro-hydraulically controlled power shift transmission can select the optimal gear based on the working road condition to realize the best match between traveling and operation.
The integral three-segment drive axle is built internally with imported no-spin automatic limited slip differential to guarantee stable and reliable drive.
The balance box is capable of 15° angular swing in vertical direction and the heavy-duty roller chain drive guarantees better terrain adaptability of the machine. It can meet the normal operations under special road conditions, featuring stable power output and strong drive force.
The high-grade full-sealed luxury cab with full visual field and the high-efficiency shock-absorbing seat maximize the operating comfort.
The cab and the main frame are connected by shock absorber to ensure the operating safety and reliability.
It's powered by Dongfeng Cummins 6CTAA5.9-C215 China-II compliant inline, 4-stroke, direct injection, water-cooled, and turbocharged and intercooled diesel engine, featuring compact structure, stable performances, and high efficiency and energy-saving.
The high torque reserve enables the machine to output stable power under severe working conditions and meet your working needs.
| Product name | SG21A-3 |
| Performance parameters | |
| Operating weight of machine (kg) | 16900 |
| Wheelbase (mm) | 6560 |
| Wheel tread (mm) | 2155 |
| Minimum ground clearance (mm) | 430 |
| Steering angle of front wheels (°) | ±45 |
| Articulated steering angle (°) | ±25 |
| Maximum traction force (kN) | 95 |
| Turning radius (mm) | 8200 (Outer side of front wheel) |
| Maximum gradeability (°) | 20 |
| Width of shovel blade (mm) | 3660/3965/4270 |
| Height of shovel blade (mm) | 635 |
| Blade slewing angle (º) | 360 |
| Blade cutting angle (º) | 44-91 |
| Maximum digging depth of blade (mm) | 500 |
| Length (mm) | 9430 |
| Width (mm) | 2600 |
| Heigh (mm) | 3400 |
| Engine | |
| Engine model | 6CTAA8.3-C215 |
| Emission | China-II |
| Type | Mechanical direct injection |
| Rated power/rated speed (kw/rpm) | 160kW/2200rpm |
| Drive system | |
| Torque converter | Single-stage single-phase three-element |
| Transmission | Countershaft power shift |
| Gears | Six forward and three reverse |
| Speed for forward gear I (km/h) | 5.4 |
| Speed for forward gear II (km/h) | 9.4 |
| Speed for forward gear III (km/h) | 12.2 |
| Speed for forward gear IV (km/h) | 20.5 |
| Speed for forward gear V (km/h) | 25.4 |
| Speed for forward gear VI (km/h) | 39.7 |
| Speed for reverse gear I (km/h) | 5.4 |
| Speed for reverse gear II (km/h) | 12.2 |
| Speed for reverse gear III (km/h) | 25.4 |
| Brake system | |
| Service brake type | Hydraulic brake |
| Parking brake type | Mechanical brake |
| Brake oil pressure (MPa) | 10 |
| Hydraulic system | |
| Working pump | Constant displacement gear pump, with flow at 28ml/r |
| Operating valve | Integral multi-way valve |
| Pressure setting of safety valve (MPa) | 16 |
| Pressure setting of safety valve (MPa) | 12.5 |
| Filling of fuel/oils/fluids | |
| Fuel tank (L) | 340 |
| Working hydraulic fuel tank (L) | 110 |
| Transmission (L) | 28 |
| Drive axle (L) | 25 |
| Balance box (L) | 2X23 |