Surface Miner 4200 SM
Technical specification
Surface Miner 4200 SM | |
Cutting width max. mm | 4.200 |
Cutting depth*1 mm | 0 – 800 |
Cutting drum | 1.860 |
Number of tools | Depending on machine application |
Engine | |
Manufacturer | Cummins |
Type | KTA 50 |
Cooling | Water |
Number of cylinders | 16 |
Output kW/HP/PS | 1.194/1.600/1.623 |
Fuel consumption, 1/1 load l/h | 284 |
Fuel consumption, 2/3 load l/h | 189 |
Speed/gradeability | |
Travel speed m/min (km/h) | 0 – 20 |
Theoretical gradeability | 20 |
Max. transverse gradient | 8 |
Weights*2 | |
Front axle load, full tanks daN (kg) | 73.600 |
Rear axle load, full tanks daN (kg) | 117.800 |
Own weight daN (kg) | 172.400 |
Operating weight, CE*3 daN (kg) | 191.400 |
Tracks | |
Front tracks (L x W x H) | 3.880 x 500 x 1.200 |
Rear tracks (L x W x H) | 3,880 x 500 x 1,200 |
Tank capacities | |
Fuel tank | 2,900 |
Hydraulic fluid tank | 800 |
Water tank | 15.000 |
Electrical system | 24 |
Lighting V | 220 |
Spotlights | 10 à 400 W |
Conveyor system | |
Width of primary belt mm | 1,800 |
Length of primary belt mm | 7,000 |
Width of discharge belt mm | 1,800 |
Length of discharge belt mm | 15.000 |
Theoretical discharge belt capacity m3/h | 2,400 |
*1 = The maximum cutting depth may deviate from the value indicated, due to tolerances and wear.
*2 = All weights refer to basic machine without any additional equipment.
Technical description
Basic design
Surface Miner for cutting coal and soft
to medium-hard (<70 MPa) rock with
mechanically driven cutting drum and
two-part loading conveyor.
Frame
Rigid, welded honeycomb design with
integrated tanks for diesel, hydraulic
fluid and water.
Crawler unit suspension
The four crawler tracks are free-floating
and connected to supporting arms which
are linked to the frame via a moving parallelogram
made up to two strut constructions in each case. The tracks are
fitted with double grouser track shoes.
Cutting depth control
The height is adjusted via hydraulic
cylinders. The rear crawler suspensions
are controlled via an automatic cutting
depth control unit.
Trvel drive
Each crawler unit is driven by a planetary
gearing with hydraulic motor. Each of the
front and rear travel drive motors is fed by
a hydraulic variable displacement pump.
The advance speed can be infinitely adjusted
from zero to maximum in both
travel gear and operating gear.
Brake system
Operating brake via a closed-loop hydrostatic
system. Parking brake for each
crawler unit with spring-loaded multiple
disc brakes.
Steering
The machine is steered via two hydraulic
cylinders on each of the front crawler
tracks.
Cutting drum
The cutting drum rotates in an up-cutting
direction. The cutting tools are mounted
in toolholders welded onto the body of
the drum. The tools used depend on the
machine's momentary use and on the
properties of the material being cut.
Cutting drum drive
The cutting drum is driven via a mechanical
clutch on the flywheel side of
the diesel engine, as well as transmission
belts and a planetary gearing installed
in the cutting drum. The cutting
speed can be adjusted in line with the
momentary application by replacing the
pulleys for the transmission belts.
Scraper blade
The drum chamber is sealed by a hydraulically actuated scraper blade behind the cutting drum, thus ensuring a clean cutting surface.
Water spraying system
The water spraying system largely prevents
the generation of dust while cutting
material and reduces the degree of wear
on the cutting tools. The spray nozzles
can easily be removed for cleaning.
Spray nozzles are additionally installed
for the loading conveyors.
Soundproofing
The engine, cooling unit and hydraulic
system are sondproofed to reduce the
noise level and protect both the operator
and the environment.
Operator's cab
Enclosed cab, soundproofed and mounted
on vibration-damping elements. Rotating
driver's seat with armrests into which
all the most important controls have been
integrated. The cab is equipped with airconditioning
and heating.
Conveyor system
The conveyor system comprises a wide
primary belt which picks up the cut and
comminuted material at the cutting
drum, as well as loading conveyor to discharge
the material onto trucks. The
loading conveyor can be adjusted in
height and slewed to both sides. The
conveyor speed can be varied.
Lighting system
Complete lighting system with generator
and halogen spotlights for nighttime operations.
Safety equipment
Comprehensive safety equipment with
five Emergency OFF switches.
Pneumatic system
Compressor and accumulators for starting
the diesel engine, as well as auxiliary
functions.
Tool kit
Complete tool kit for maintenance and
repairs.
Central lubrication
The Surface Miner is equipped with a
central lubrication system which supplies
all the most important bearing
points with grease.
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