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
○ 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
○ 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 | m 3 | 4.5 | 3.5 | Range | m 3 | 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 | 0.098 | 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 ( Face-shovel ) |  |
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 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. |
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