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> SG21A-3

SG21A-3

ENGINE POWER:With 160kW/2200, this engine conforms to China-II non-road machinery emission regulation OVERALL WEIGHT:16800kg WIDTH OF SHOVEL BLADE:3660/3965/4270mm

Product Description

Power System

1. It's powered by Dong 2 feng Cum, /mins 6CTAA8.3-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.

2. The high torque reserve enables the machine to output stable power under severe working conditions and meet your working needs

Driving/Riding Environment

1. The high-grade full-sealed luxury cab with full visual field and the high-efficiency shock-absorbing seat maximize the operating comfort.

2. The cab and the main frame are connected by shock absorber to ensure the operating safety and reliability.

Working adaptability

1. 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.

2. The integral three-segment drive axle is built internally with imported no-spin automatic limited slip differential to guarantee stable and reliable drive. 

3. 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.

Operating performance

1. 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.

2. The external gear working device of proprietary technology features high drive torque and strong resistance against external force impact.

3. The blade of larger angular adjustment range (37°-83°) improves the material control capability and remarkably promotes the operating efficiency of motor grader, especially during the handling of dry material and clay.

4. 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.

5. 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.

Product nameSG21A-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 model6CTAA8.3-C215
EmissionChina-II
TypeMechanical direct injection
Rated power/rated speed (kw/rpm)160kW/2200rpm
Drive system
Torque converterSingle-stage single-phase three-element
TransmissionCountershaft power shift
GearsSix 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 typeHydraulic brake
Parking brake typeMechanical brake
Brake oil pressure (MPa)10
Hydraulic system
Working pumpConstant displacement gear pump, with flow at 28ml/r
Operating valveIntegral 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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