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
Type: in-line, turbocharged, water-cooled, 6-cylinder
Number of cylinders: 6
Bore: 102mm
Stroke: 120mm
Piston displacement: 5.9L
Flywheel power(SAEJ 1349)(DIN 6270 NET): 169HP 126KW/2100r/min
Hydraulic system
Type: negative flow control
Main pump: two variable displacement axial piston pumps
Max flow: 2x235L/min
Pilot pump: blade pump
*Hydraulic motor
Travel: oblique plate axial hydraulic motor
Slew: oblique plate axial hydraulic motor
*Safety valve
Working equipment cirucit: 30MPa
Slew circuit: 24MPa
Spare valve: 30MPa
Travel circuit: 30MPa
Control circuit: 4MPa
*Hydraulic cylinder: cylinder number x bore x stroke
Boom: 2xφ125x1320mm
Arm: 1xφ140x1680mm
Bucket: 1xφ125x1100mm
Slew system
Drive: oblique plate axial hydraulic motor
Slew lock-up: flake brake
Slew retardation: two-grade planetary retarding mechanism
Slew speed: 0-13r/min
Travel unit
Carrier frame: X-shape
Track: triple grouser track shoe
Track tensioning unit: greasing
No. of track shoes: 2x50
No. of carrier rollers: 2x2
No. of lower rollers: 2x9
Gradeability: 60%
Drive and brake
Drive: hydraulic drive
Drive motor: oblique plate axial hydraulic motor
Reduction unit: three-grade planetary reduction gearbox
Max traction: 17200kg
Travel speed: 3-5km/h
Coolant and lubricant volume (tank volume)Fuel oil tank: 312L
Engine lubricant: 11L
Slew retarder: 9L
Travel retarder: 2X5.4L
Hydraulic oil tank: 350L
| Post Date: | 5/20/2008 |
| Expiry Date: | 5/15/2009 |