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STANDARD MOTOR GRADER SG21A-3
  • SG21A-3
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STANDARD MOTOR GRADER

SG21A-3
ENGINE POWER
With 160kW/2200, this engine conforms to China-II non-road machinery emission regulation
OVERALL WEIGHT
16900kg
WIDTH OF SHOVEL BLADE
3660/3965/4270mm
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SG21A-3
  • Characteristics
  • parameters
  • cases
  • recommendations
characteristic
  • Easy maintenances
  • Operating performance
  • Working adaptability
  • Working adaptability
  • Driving/Riding Environment
  • Power System
  • Easy maintenances

    ● 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.

  • 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

    ● 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 needs.

parameter
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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