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WK-12C excavator is suitable for 10 million MT mining use, to match with 80-154MT dumper or 100MT dumping train.
Technical characteristic:
·Gear-rack crowding, powerful penetration, high efficiency
·The propel mechanism adopts independent drive of planetary reducer;
·Gear transmission uses gears of high hardness surface to have long life;
·Propel adopts high hand drive to prolong life time;
·Air release spring disk brakes are applied(exclude hoist brake);
·AC IGBT drive.
Working Ranges
A | Max. digging radius | ~18.90 |
B | Digging height at max. digging radius | ~8.00 |
C | Max. height of cut | ~13.53 |
D | Digging radius at max. digging height | ~17.10 |
E | Floor level radius | ~13.00 |
F | Max. dumping radius | ~16.25 |
G | Dumping height at max. radius-door open | ~5.98 |
H | Max. dumping height-door open | ~8.60 |
I | Dumping radius at max. dumping height | ~15.58 |
J | Depth of cut | ~2.20 |
Main Performance Parameter
1 | Dipper(material density is 1.8t/ m³) | 12m³ |
2 | Dipper capacity | 8-16 m³ |
3 | Max. hoist speed | 1.5m/s |
4 | Max. crowding speed | 0.58m/s |
5 | Max. propel speed | 0.89km/h |
6 | Max. hoist force | 1110kN |
7 | Max. crowding force | 541kN |
8 | Max. crawler dragging force | 2565kN |
9 | Max. gradeability (degree) | 13° |
10 | Bearing area-ground pressure | 253kPa |
11 | Working cycle time(=90°) | 29s |
12 | Working weight | ~490t |
13 | Counterweight | ~75t |
14 | Theoretical productivity | ~1490 m³/h |
General Dimensions
α | Boom angle | 45° |
K | Boom length | 13.00 |
L | Diameter of boom top sheave | 2.28 |
M | Effective dipper handle length | 9.25 |
N | Clearance height of boom point sheave | 13.80 |
O | Clearance radius of boom point sheave | 13.50 |
P | Center of rotation to boom foot pin | 3.00 |
Q | Height-ground to boom foot pin | 3.43 |
R | Radius of rear end | 7.35 |
S | Width of cab | 6.60 |
T | Height-ground to top of main cab | 7.22 |
U | Height-ground to operator’s level | ~7.10 |
V | Height-ground to bottom of counterweight | 2.16 |
W | Overall length of crawlers | 8.40 |
X | Overall width of crawlers | 7.10 |
Y | Width of crawler shoes | 1.40 |
Z | Height-ground to bottom of crawler drive device | 0.51 |
WK-12 Forward Excavator