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Operating performance ● 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 Working adaptability ● 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 Driving/Riding Environment ● 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 Power System ● 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 needsCHARACTERISTIC
Paracteristic
| 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 |
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