Surface Miner 3700 SM
Technical specification
Surface Miner 3700 SM | |
Cutting width max. mm | 3,700 |
Cutting depth*1 mm | 0 – 600 |
Cutting drum | 1,400 |
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 |
Ground clearance | 370 |
Weights*2 | |
Front axle load, full tanks daN (kg) | 59,000 |
Rear axle load, full tanks daN (kg) | 98,000 |
Own weight daN (kg) | 157,000 |
Operating weight, CE*3 daN (kg) | 176,000 |
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 | 800 |
Electrical system | 24 |
Lighting V | 220 |
Spotlights | 10 x 400 W each |
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 | 12,000 |
Length of discharge belt mm | 12,000 |
Theoretical discharge belt capacity m3/h | 2,400 |
*1 = All weights refer to basic machine without any additional equipment.
Technical description
Basic design
Surface Miner for cutting rock
(< 120 MPa) with mechanically driven
cutting drum and two-part loading
conveyor. Can also cut material> 120 MPa in exceptional cases.
Frame
Rigid, welded honeycomb design with
integrated tanks for diesel 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.
Travel 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.
Scraper blade
The drum chamber is sealed by a hydraulically
actuated scraper blade behind
the cutting drum, thus ensuring a
clean cutting surface.
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.
Steering
The machine is steered via two hydraulic
cylinders on each of the front
crawler tracks.
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 soundproofed 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 air-conditioning
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 a discharge conveyor
to discharge the material onto trucks.
The discharge 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 system
The Surface Miner is equipped with a
central lubrication system which supplies
all the most important bearing
points with grease.
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