China famous brand road construction machinery motor grader SEM921

  • motor grader SEM921
  • motor grader SEM921

China famous brand road construction machinery motor grader SEM 921 from Caterpillar Qingzhou Ltd

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Road construction machinery famous brand motor grader SEM 921 from China top supplier

motor grader SEM919

 

 

 

Advantages of motor grader SEM921 :

Motor grader SEM921

Seven hole link rod control system

· Electric hydraulic controlled seven hole link rod structure

· Appropriate hole site is used to make sure the shovel can touch the bottom of groove when cleaning the dense vegetation in ditch.

· Replaceable bushing in the link rod hole makes it easier to maintain so as to reduce service time and maintenance

Shovel floating function

· Shovel can hugs the ground with self gravity and moves with the undulating of the ground when double cylinder float at the same time to protect the hard pavement.

Mainly used in snow removing and road rubbish cleaning.
· One side shovel can hugs hard working surface with one cylinder floating and the other side can control the slope angle by lifting cylinder.

A-shaped traction frame

· A-shaped traction frame is consisted of two square steels with good durability, high life length and low failure rate.
· Ball joint can adjust gap (shim) based on the wear condition to reduce maintenance cost.
· Detachable connecting ball joint is fixed by bolt for easier change.

Box structured front axle

· Flange box structure design
· Continuous top and bottom plate structure
· Front frame is arranged by side pipes to maintain easily.
· Self lubricating bushing is used for key parts to improve reliability and reduce maintenance cost.

SEM 921 motor grader comfortable cab

· Located on the front frame, cab has a clear view of traction frame, turntable and shovel for driver to control shovel exactly.
· Large space(1.9meter height) allows standing operation, capacity increased 30%.
· Front wheel steering can be seen clearly when bending to make sure operating safety and accuracy.

SEM921 motor grader

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifications of motor grader SEM921:

Item 
SEM919
SEM921
Overall weight (kg)
15070
15930
weight – front axle(kg)
4236
4744
weight – back axle(kg)
10834
11186
Front / back axle load distribution
28% /72%
30% /70%
Overall dimension(mm)
8703*2630*3360
8854*2630*3360
Max. Tractive Force(KN)
≥78
≥85
Max. forward speed(km/h)
40
40
Max. backward speed(km/h)
25
25
Engine
Shangchai
Shangchai
Model
SC9DK190.1G3
SC9DK220G3
Rated power(kw)
140
162
Rated revolution(rpm)
2200.0
2200.0
Displacement(L)
8.8
8.8
Transmission
Hangzhou advance gearbox
Hangzhou advance gearbox
Gear
6 in the front 6 and 3 in the back
6 in the front 6 and 3 in the back
Hydraulic system
load sensing, proportional priority with pressure compensation
load sensing, proportional priority with pressure compensation
Working pump
Variable Piston Pump
Variable Piston Pump
Working valve
Proportional priority with pressure compensation
Proportional priority with pressure compensation
Tire
Diagonal tire with inner tube
Diagonal tire with inner tube
Layer/pattern
12pr, E2/L2
12pr, E2/L2
Model
17.5-25
12pr, E2/L2
Max. articulation angle(°)
±20
±20
Min. turning radius(m)
≤7.8
≤7.8
Shovel floating
Standard
Standard
Shovel length(m)
4.0
4.3

190hp model SEM919

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