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CE Series,CE750-7Backhoeexcavator, bucket, Material Handler, grab
 
 
 
 
 
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CE750-7Backhoe

Main technical characteristic of hydraulic excavator CE750-7

○ Cummins diesel engine, water cooled, direct injection, turbo-charged and after cooled, electric control,  it satisfies the emission requirement of Europe standard, grade Ⅲ
○ Control of constant power of single pump, limited power of three pumps for reasonable distribution of  power
○ Starting with zero displacement so as to reduce the moment of resistance at starting
○ Technique 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
○ 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
○ Automatic central lubrication two pumps of system by control of micro-electronics to save daily lubrication
○ Better reliability with Parker hose &seals and Trelleborg cylinder seals
○ The Technique with disassembled undercarriage which is advanced to transport the machine quickly
○ LCD displayer, electronic monitoring & alarm, trouble record system
○ Cab with fixed elevation and integrated 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.

 Main Technology Data of Hydraulic Excavator CE750-7

No.
Item
Unit
Date
Face shovel

Backhoe

1
Machine weight
t
75
73
2
Bucket capacity
Standard
m3
4.5
3.5
Range
m3
4.0~5.5
2.3~5.0
3
Diesel engine
Model
 
QSM11-C400
Power /Speed
kW/rpm
298/1800
Fuel tank Capacity
L
820
4
Hydraulic system
Type
 
Three pumps and three loops, limit load variable system
Max. pressure of main oil circuit
MPa
32
Max. flow of main oil circuit
L/min
2×415
Swing type
 
Independence open type
Flow of swing oil
 
1×415
Operating style
 
Pilot control
Hydraulic oil tank capacity
L
780
5
Performance
Swing speed
r/min
6.0
Travel speed
km/h
3.1
Max. pulling force
kN
457
Gradeability
%
70
Ground pressure
MPa
0.097
Circulating time of operation
s
20
6
Working date
Boom length
mm
4450
7000
Stick length
mm
2900
3400
Max. digging radius
mm
9280
12290
Max. digging depth
mm
2680
7741
Max. digging height
mm
9745
10286
Max. unloading height
mm
7680
7340
Max. digging force of stick
kN
334
233
Max. breakout force of bucket
kN
357
285

 Main Components of Hydraulic Excavator CE750-7

No.
Component Name
Model
Manufacturer
1
Diesel engine
QSM11-C400+AM365
Cummins/America
2
Main pump
2×A11VO190+1×A11VO190LR/11R
Rexroth/Germany
3
Main valve
8M8-32+M032
Rexroth/Germany
4
Double join valves
MO/2MO
Rexroth/Germany
5
Swing motor
A2FE125/61W
Rexroth/Germany
6
Swing reduction gear
GFB80T3B
Rexroth/Germany
7
Travel motor
A2FE125/61W
Rexroth/Germany
8
Travel reduction gear
GFT110T3
Rexroth/Germany
9
Logical valve
026710
Rexroth/Germany
10
Isolating valve
MH3WA06CG
Rexroth/Germany
11
Isolating valve
MH3WA06UG
Rexroth/Germany
12
Solenoid valve
4WE6C6X
Rexroth/Germany
13
Solenoid proportional
 pressure-reducing valve
MHFP04G1
Rexroth/Germany
14
Armrest Pilot Valves
4TH6E70
Rexroth/Germany
15
Foot pedal pilot valves
2TH6NRP70
Rexroth/Germany
16
Foot pedal pilot valves for opening or closing bucket
2TH7Q06
Rexroth/Germany
17
Track Ass.
J01083DOM
ITM or Berco/Italy
18
Driver’s Seat
DS-85H
Grammer/China
19
Hydraulic hose + System seal
 
Parker/America
20
Cylinder seal
 
Trelleborg/America
21
Automatic lubricating system
 
BEKA/Germany or  LINCOLN/America
22
Air-condition
 
Wuhan Jingdong/China

 

Working scope of hydraulic excavator CE750-7 (backhoe)

 Application of hydraulic excavator CE750-7

The hydraulic excavator CE750-7, 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 gradeⅠ~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.
 
 
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