JY230E
crawler hydraulic excavator
JY230E crawler excavators are our newly developed products, with engine, main hydraulic pump, main valve and slew motor imported from abroad. The negative flow control system can make full use of engine power and each index can reach international level. The machine features reliability, safety, easy maintenance and wide application.
Engine
Model Cummins6BTA5.9-C Stroke 120mm
Type in-line, turbocharged, water-cooled, 6-cylinder Piston displacement 5.9L
Number of cylinders 6 Flywheel power(SAEJ 1349)(DIN 6270 NET) 170HP/2100r/min
Bore 102mm
Hydraulic system
Type negative flow control Max flow 2x235L/min
Main pump two variable displacement axial piston pumps Pilot pump blade pump
Hydraulic motor
Travel oblique plate axial hydraulic motor Slew oblique plate axial hydraulic motor
Safety valve
Working equipment cirucit 30MPa Travel circuit 30MPa
Slew circuit 24MPa Control circuit 4MPa
Spare valve 30MPa
Hydraulic cylinder: cylinder number x bore x stroke
Boom 2xφ125x1320mm Bucket 1xφ125x1100mm
Arm 1xφ140x1680mm
Slew system
Drive oblique plate axial hydraulic motor Slew retardation two-grade planetary retarding mechanism
Slew lock-up flake brake Slew speed 0-13r/min
Travel unit
Carrier frame X-shape No. of carrier rollers 2x2
Track triple grouser track shoe No. of lower rollers 2x9
Track tensioning unit greasing Gradeability 60%
No. of track shoes 2x50
Drive and brake
Drive hydraulic drive Max traction 17200kg
Drive motor oblique plate axial hydraulic motor Travel speed 3-5km/h
Reduction unit three-grade planetary reduction gearbox
Coolant and lubricant volume (tank volume)
Fuel oil tank 312L Travel retarder 2X5.4L
Engine lubricant 11L Hydraulic oil tank 350L
Slew retarder 9L
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Engine
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Model
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Cummins 6BT5.9-C
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Stroke
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120mm
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Type
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in-line, turbocharged, water-cooled, 6-cylinder
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Piston displacement
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5.9L
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Number of cylinders
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6
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Flywheel power(SAEJ 1349)(DIN 6270 NET)
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170HP/2100r/min
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Bore
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102mm
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