2. SPECIFICATIONS
2.3
SPECIFICATIONS AND PERFORMANCE
SPEED AND GRADEABILITY Model Crawler type Rotation speed
rpm
Travel speed
km/h
Gradeability
% (degree)
E45B SR E50B SR Steel crawler Steel crawler Rubber belt Rubber belt (OPT) (OPT) 8.8 8.8 Low High Low High Low High Low High (1st) (2nd) (1st) (2nd) (1st) (2nd) (1st) (2nd) 2.8 4.6 2.5 4.2 2.8 4.6 2.5 4.2 58 (30°)
ENGINE Model (YANMAR) Type Number of cylinders - Bore x stroke Total displacement L Rated output kW / rpm Maximum torque Nm / rpm Starter motor V x kW Generator VxA
4TNV88-XYB Vertical, 4-cycle water-cooled diesel engine 4 - ø88 mm × 90 mm 2.189 31.5 / 2400 139.3 / 1440 12 x 2.3 12 x 55
HYDRAULIC COMPONENTS Hydraulic pump Hydraulic motor Hydraulic Motor w/Reduction gear (Travel) Control valve Cylinder (boom, arm, swing, bucket, dozer) Return filter
Variable displacement axial piston + gear pump Axial piston 2-axial pistons, 2-speed motor 11-spools multiple control valve Double action cylinder Safety valve containing/Filter type (30µ)
SWING AND DOZER Type Boom swing angle Stroke of Dozer (above/below)
Boom swing by hydraulic cylinder 60° 70° 505 / 325 495 / 375
Right Left mm
WEIGHT
Machine Weight
kg
Upper structure Travel system Equipment (boom + standard arm + standard bucket) Oil and Water
kg kg
E45B SR Rubber belt Steel crawler 4200 4300 1930 ← 1670 1770
kg
505
535
kg
95
←
Note: this figure is calculated with standard bucket.
2-4
E50B SR Rubber belt Steel crawler 4630 4730 2280 ← 1720 1820
