CED Series,CED1250-7Face-shovelexcavator, bucket, Material Handler, grab

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CED1250-7Face-shovel

Main technical characteristic of hydraulic excavator CED1250-7

○ Three phase-asynchronous electromotor, the only technology in China for hydraulic material handler powered by electricity, it is of benefit to environment protecting, power saving, easy service & maintenance, and low operating cost.
○ New dual electric brush and collector ring bring longer lifetime.
○ Control of constant power of single pump, limited power of three pumps for reasonable distribution of electromotor 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
○ Nitrogen dash control is the exclusive technology in domestic with a long cushion stroke and excellent shockabsorbing capacity
○ 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 CED1250-7

No.	Item		Unit	Date
No.	Item		Unit	Face shovel	Backhoe
1	Machine weight		t	125	116
2	Bucket capacity	Standard	m 3	6.5	5.0
2	Bucket capacity	Range	m 3	6.0~8.0	3.5~7.0
3	Electromotor	Model		YJK4004-4
		Power /Speed	kW/rpm	450/1485
		Voltage	V	6000
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	2×522
		Swing type		Independence open type
		Flow of swing oil		1×522
		Operating style		Pilot control
		Hydraulic oil tank capacity	L	1300
5	Performance	Swing speed	r/min	5.8
		Travel speed	km/h	2.4
		Max. pulling force	KN	713
		Gradeability	%	70
		Ground pressure	MPa	0.127
		Circulating time of operation	s	22
6	Working date	Boom length	mm	5450	7800
		Stick length	mm	3700	3400
		Max. digging radius	mm	11332	13405
		Max. digging depth	mm	3330	7315
		Max. digging height	mm	11870	12529
		Max. unloading height	mm	9400	8958
		Max. digging force of stick	KN	505	416
		Max. breakout force of bucket	KN	470	550

Main Components of Hydraulic Excavator CED1250-7

No.	Component Name	Model	Manufacturer
1	Or Electromotor	YJK4004-4	Lanzhou Electromotor/China
2	Main pump	A11VO260	Rexroth/Germany
3	Swing pump	A11VO260	Rexroth/Germany
4	Main valve	8M8-32	Rexroth/Germany
5	Double join valves	2M0-32	Rexroth/Germany
6	Swing motor	A2FE160	Rexroth/Germany
7	Swing reduction gear	GFB110T3	Rexroth/Germany
8	Travel motor	A2FE180	Rexroth/Germany
9	Travel reduction gear	GFT220T3	Rexroth/Germany
10	Armrest Pilot Valves	4TH6E70	Rexroth/Germany
11	Foot pedal pilot valves	4TH6NR	Rexroth/Germany
12	Logical valve	026710	Rexroth/Germany
13	Solenoid valve	4WE6C	Rexroth/Germany
14	Track Ass.		ITM or Berco/Italy
15	Driver’s Seat		Grammer/China
16	Hydraulic hose + System seal		Parker/America
17	Cylinder seal		Trelleborg/America
18	Automatic lubricating system		BEKA/Germany or LINCOLN/America
19	Air-condition		Wuhan Jingdong/China

Working scope of hydraulic excavator CED1250-7 ( Face-shovel )

Application of hydraulic excavator CED1250-7

The hydraulic excavator CED1250-7, 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.

The hydraulic excavator CED1250-7 has combined electric-hydraulic technology successfully, it is the exclusive technology of Bonny. The operation cost is only 50-70% of that for excavator powered by diesel engine. So it is very applicable to the task of the exploiting and loading in all classes of mine, water and electricity construction on the site with convenience electric power.