Main technical characteristic of hydraulic excavator NK230
○ Turbo-charged after-cooled diesel engine: environment protecting, power saving, according to the emission of Europe Standard Grade.Ⅱ
○ The control of alternate power: reasonably distributing and using the diesel power
○ The control technology of the negative flow: reducing the energy consumption greatly
○ Systematic pressure: contenting the machine’s the momentary overload
○ Keeping the boom and stick’s load
○ Reviving the boom and stick’s oil liquid, the confluence of two pump, raising the working efficiency
○ The frequent-closed swing, the walking brake
○ two gears changing the travel speed, meeting the requirement of the machine to move
○ Integrated oil & water cooler with compact conformation
○ Parker hose and seal, Busak+Shamban cylinder seal solving the problem of leaking oil thoroughly
○ Case shape structure, attachment designed by CAD and the casting-welding structure realizing the high strength structure.
○ The high strength and high steel platform and the undercarriage guaranteeing the powerful digging and walking
○ The LCD liquid crystal show, automatic illumination, and the detection of the various pressure ,temperature and oil level to have sound-light alarm
○ Three-dimensionally sending the wind, the fresh air cycle, environment protecting without the fluorine, automatically eliminating the frost, and the automatic air-condition with the high capacity.
○ The operator’s cab with the wide vision field and the streamlined appearance, matching the decoration and function with human nature, and offering the working environment in a car.
○ Automatically injecting the fuel(Option)
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Main Technology Data of Hydraulic Excavator NK230
No.
|
Item
|
Unit
|
Backhoe Date
|
1
|
Machine weight
|
t
|
23
|
2
|
Bucket capacity
|
Standard
|
m 3
|
1.0
|
Range
|
m 3
|
0.6~1.3
|
3
|
Diesel engine
|
Model
|
|
B5.9-C
|
Power /Speed
|
kW/rpm
|
125/2100
|
Fuel tank Capacity
|
L
|
360
|
4
|
Hydraulic system
|
Max. pressure of main oil circuit
|
MPa
|
29.4
|
Max. flow of main oil circuit
|
L/min
|
2×231
|
Operating style
|
|
Pilot control
|
Hydraulic oil tank capacity
|
L
|
240
|
5
|
Performance
|
Swing speed
|
r/min
|
13.5
|
Travel speed
|
km/h
|
3.52/5.32
|
Max. pulling force
|
KN
|
191
|
Gradeability
|
%
|
70
|
Ground pressure
|
MPa
|
0.053
|
Circulating time of operation
|
s
|
15
|
6
|
Working date
|
Boom length
|
mm
|
5850
|
Stick length
|
mm
|
2950
|
Max. digging radius
|
mm
|
10120
|
Max. digging depth
|
mm
|
6850
|
Max. digging height
|
mm
|
9350
|
Max. unloading height
|
mm
|
6510
|
Max. digging force of stick
|
KN
|
125
|
Max. breakout force of bucket
|
KN
|
125
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Main Components of Hydraulic Excavator NK230
No.
|
Component
|
Type
|
Manufacturer
|
1
|
Diesel engine
|
B5.9-C169
|
Cummins/America
|
2
|
Main pump
|
PVB110
|
Toshiba Machinery/Japan
|
3
|
Main valve
|
UX28
|
Toshiba Machinery/Japan
|
4
|
Swing motor and reduction
|
SG08E
|
Toshiba Machinery/Japan
|
5
|
Travel motor and reduction
|
GM35VL
|
Nabtesco/Japan
|
6
|
Armrest pilot valve
|
TH40K
|
Kawasaki/Japan
|
7
|
Foot pedal Pilot valve
|
RCV8CC
|
Kawasaki/Japan
|
8
|
Integration valve block
|
|
Shanghai EATON/China
|
9
|
Hydraulic hose+ System seal
|
|
Parker/America
|
10
|
Cylinder seal
|
|
Parker/America
|
11
|
Air-condition system
|
|
Wuhan Jindong/China
|