7. PRINCIPLE SPECIFICATION LIST
System / Item MC285C-2E (Engine and Electric Motor Specifications)
Machine weight 2120kg
Overall length u width u
height
3320mm x 750mm x 1470mm
Distance between center
idler and sprocket
975mm
Track gauge 550mm
Weight and
dimensions
Width of crawler 200mm
Crane capacity 2.82t x 1.4m
Maximum working radius 8.2m
Performanc
e
Maximum lifting height
above ground
8.7m
Type
Hydraulic motor driven with brake, differential planetary gear
type, with counter balance valve(within drum type)
Hook hoist speed Engine: 9.3 m/min (4 layers, 4 parts of line)
Winch
system
Hoist wire rope IWRC 6 x Fi (29) 7 mm x 48 m
Type
Sequential hydraulic cylinders 2 + wire rope telescoping
systems 2
Type of boom
Fully automatic 5-section pentagonal telescopic
(3 to 5 stage: simultaneous telescoping)
Boom length 2.535m – 4.075m – 5.575m – 7.075m – 8.575m
Telescopin
g system
Boom telescoping stroke/
time
Engine: 6.04 m/22 sec
Type
Hydraulic double acting cylinder,direct acting type 2
Boom hoist
system
Derrick angle/ time Engine: 0 to 80° /14 sec
Type
Swing bearing support, hydraulic motor drive, worm and spur
gears, worm self-lock
Slewing
system
Slewing angle/ speed Engine: 360° (continuous)/60 sec (1.0 RPM)
Type
1st stage with flexible stay damper, 2nd stage manual pullout,
hydraulic cylinder direct acting type
Outrigger
system
Max extended width (Front) 3810mm x (Right/left) 4580mm x (Rear) 4530mm
Type Hydraulic motor driven, Step-less speed changer
Travel speed Forward/backward: 0 – 2.2 km/h
Grade ability 20°.
Travelling
system
Ground pressure
53.3 kPa(0.537䌫䌧䌦/䌣䋛)
Hydraulic pump
Engine: Double-throw variable piston pump
Electric: Double-throw variable piston pump
Rated pressure 20.6MPa (210kgf/cm
2
)
Hydraulic
system
Hydraulic oil tank capacity 20L
Model Yanmar 2TNV70-NMBA
Type In-line 2-cylinder, water cooled, 4-cycle diesel
Displacement 0.569L (569cc)
Rated output (continuous) 7.4kW/2500min
-1
(10.1PS/2500rpm)
Engine
Fuel tank capacity Diesel 12L
Battery Model 55B24R (DC12V x 1 piece)
Motor specifications Three-phase induction motor: 5.5kW 4P 380V 50Hz
Electric
motor
Starting method Inverter-controlled (30 to 60Hz)
Safety
device
Over hoist detector, over un-winding detector, angle indicator, hydraulic safety valve, wire rope
latch, level, machine body inclination alarm, EMO Switch, crane outrigger interlock device,
moment limiter, outrigger setting light, working status light
7-21
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