○ Turbo-charged after-cooled diesel engine: environment protecting, power saving, its satisfied the emission of Europe Standard Grade.Ⅱ
○ Control with constant power of single pump, crossover power of two pumps for reasonably distributing and using the diesel power
○ Starting with zero displacement so as to reduce the moment of resistance at starting
○ T echnique with pressure cut to protect hydraulic system and reduce the system heat
○ Secondary overloading for swing and normal closed brake for swing and travel ensure smoothly brake
○ Integrated oil& water cooler with compact conformation
○ Two shift travel speed to satisfied the moving requirement of the machine
○ Travel with multiplex action in line
○ The working attachment realized automatic level crowding with bucket to increase the bucket filling factor
○Attachment designed by CAD, case shape and casting-welding structure realizing the high strength
○ LCD meters show automatic illumination and detection of the various pressure ,temperature and oil level to have sound-light alarm
○ Better reliability with Italy hose &seals and Busak+Shamban cylinder seals
○ The Technique with disassembled undercarriage which is advanced to transport the machine quickly
○ Cab is provided with large tri-dimensional ventilation, fresh air circulation, large capacity air condition without fluorine
○ 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.

No.

Item

Unit

Date

Face shovel

Backhoe

1

Machine weight

t

42

40

2

Bucket capacity

Standard

m ³

2.0

1.8

Range

m ³

1.6 、 2.0 、 2.5

1.0~2.5

3

Diesel engine

Model

M11-C290

Power /Speed

kW/rpm

216/2100

Fuel tank Capacity

L

510

4

Hydraulic system

Type

Crossing power variable system with two pumps and two loops

Max. pressure of main oil circuit

MPa

30

Max. flow of main oil circuit

L/min

2×321

Operating style

Pilot control

Hydraulic oil tank capacity

L

425

5

Performance

Swing speed

r/min

9.0

Travel speed

km/h

3.0/5.0

Max. pulling force

KN

333

Gradeability

%

70

Ground pressure

MPa

0.077

Circulating time of operation

s

16

6

Working date

Boom length

mm

3900

6500

Stick length

mm

2600

3000

Max. digging radius

mm

7920

11240

Max. digging depth

mm

2350

7230

Max. digging height

mm

9240

10580

Max. unloading height

mm

6890

7490

Max. digging force of stick

KN

213

199

Max. breakout force of bucket

KN

244

168

No.

Component

Type

Manufacturer

1

Diesel engine

M11-C290

Cummins/ America

2

Main pump

A11VLO190

Rexroth /Germany

3

Main Valve

M8

Rexroth /Germany

4

Double join valves

MO/2MO

Rexroth /Germany

5

Swing motor

A2FE125

Rexroth /Germany

6

Swing reduction gear

GFB60T2

Rexroth /Germany

7

Travel motor

A6VE107

Rexroth /Germany

8

Travel reduction gear

GFT80T3

Rexroth /Germany

9

Logical Valve

026710

Rexroth /Germany

10

Isolating Valve

MH3WA

Rexroth /Germany

11

Foot pedal pilot valve

4TH6N

Rexroth /Germany

12

Armrest pilot valve

4TH6E

Rexroth /Germany

13

Electromagnetism Valve

4WE6C

Rexroth /Germany

14

Hydraulic hose + System seal

Manuli/Italy

15

Cylinder seal

Busak+Shamban

16

Driver’s seat

Grammer

17

Air-condition system

Wuhan Jindong /China

The hydraulic excavator CE420-6, which are based on design platform of the international cooperation and global purchasing of components, adopt the latest technology in the world to meet customer’s desire for best performance. Bonny machines have a streamlined appearance which are accepted by international customers, perfect performance, powerful digging force, high productivity and loading efficiency at low operation cost, more availability and long operation life. The powerful earth-moving excavators are applicable to the task of digging of soil grade Ⅰ ~ Ⅳ , and loading of exploded rocks, such as road construction, municipal project, water power plant, handling of slag, etc.; The powerful mining excavators are suitable for different mines such as non-ferrous metal mine, building material mine, phosphate ore, strip mine and other stripping &loading operation in water power plant.