Maeda MC405C-3 - PRINCIPLE SPECIFICATIONS LIST

Section 3 – PRINCIPLE SPECIFICATIONS LIST Mini-Crawler Crane M A E D A
3-4 1/2019 MC405C-3
PRINCIPLE SPECIFICATIONS LIST
Standard and Electric Motor Option Specifications
System / Item
MC405C-3
Standard
MC405C-3
Electric motor option
Mass and
dimensions
Machine mass 5600kg 5750kg
Overall length  width  height 4980mm  1380mm  1980mm
Distance between idler and sprocket 2100mm
Track gauge 1060mm
Track width 320mm
Capacity
Maximum rated total load  working
radius
3.83t  2.7m
Maximum working radius 16m
Maximum lifting height 16.8m
Winch system
Method
Fixed displacement axial piston motor,
Planetary reduction gear, Built-in disc brake,
With counter balance valve
Winding speed
(4th drum, 4 ropes)
18.0m/min 11.7m/min
Hoisting rope IWRC 6  WS (26) 0/0 Type B φ8  92m
Boom
telescoping
system
Method
Sequentially telescoping hydraulic cylinder (3 pieces) +
Sheave-embedded wire rope expansion device (1 piece),
(With a hydraulic automatic locking device)
Boom type
Pentagonal section, hydraulic automatic extension,
5-stage boom (Stage 2/3: Sequentially telescoping,
Stage 4/5: Simultaneous telescoping)
Boom length 4.735m – 7.695m – 10.655m – 13.565m – 16.475m
Boom telescoping stroke/time
11.7 m/54.2 sec
(0.22 m/sec)
11.7 m/61.6 sec
(0.19 m/sec)
Derrick system
Method
Direct push-type hydraulic double-acting cylinder
(2 pieces), (With a hydraulic automatic locking device)
Derrick angle/ time
0 to 80 deg/24.5 sec
(3.27 deg/sec)
0 to 80 deg/24.4 sec
(3.28 deg/sec)
Slewing system
Method
Slew bearing, hydraulic motor drive,
Reduction gear: Worm + Reduction spur gear,
Brake: Worm-selflock
Slewing angle/ speed
360 deg. (continuous)/
28.6sec (2.1min
-1
)
360 deg. (continuous)/ 33.7sec
(1.8min
-1
)
Outrigger system
Method
Extension/ground: Direct push-type hydraulic cylinder
(With a hydraulic automatic locking device)
Overall width of extended outriggers (Front) 5118mm  (Right/left) 5786mm  (Rear) 5520mm
Travelling
system
Method
Hydraulic two-speed motor drive, Variable speed,
Built-in brake
Travel speed Forward/backward: 0 – 2.9 km/h (engine operation)
Gradeability 20 deg.
Ground pressure 49.0kPa (0.50kgf/cm
2
)
Hydraulic system
Hydraulic pump
Double-throw variable piston
pump (17cc/rev  2)
Double-throw variable piston
pump (13cc/rev × 2)
Rated pressure
Travelling: 20.6MPa (210kgf/cm
2
)
Crane high-pressure relief: 20.1MPa (205kgf/cm
2
)
Crane low-pressure relief: 4.41 to 6.37MPa
(45 to 65kgf/cm
2
)