Surface Miner 4200 SMi hard rock

4200 SMi hard rock Surface Miner

4,200

mm

650

mm

EU not rated/US EPA Tier 4f

Maximum performance in large-scale opencast mining

  • The surface miner with the highest performance levels when it comes to the selective mining of hard or soft rock.
  • The 13 ft. 9 in. (4.20 m) cutting drum unit – adjusted exactly to the job in question – with a cutting depth of 32.7 in. (830 mm) in soft rock guarantees high production rates with minimum tool wear.
  • Trucks with a load capacity of between 120 and 220 tons can be loaded using the powerful liftable and slewable rear-loading conveyor.
  • With an annual mining capacity in soft rock of up to 12 million tons, the miner is ideal for large-scale opencast mining.
  • The fully glazed operator's cabin is heatable, air-conditioned, soundproof and vibration-isolated, enabling a fatigue-free and productive work process.
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Highlights
Discharger conveyor
Counterweight
Kabin
Track units
Cutting drum
Power unit with diesel engine
Safety equipment
WIRTGEN Pick Inspection
Access
Drum tooling

Surface Mining

As the surface miner moves forward, a special cutting drum rotates against the direction of travel, cutting layers of material from the rock formations and crushing it in the process. The primary conveyor picks up the material in the drum housing and transports it towards the rear of the machine, where it is then accepted by the slewable and height-adjustable discharge conveyor. The discharge conveyor loads the material into trucks or dumpers or discharges it to the side of the miner. The discharge height can be adjusted to the height of the transport vehicles. The surface miner is driven via four steerable and height-adjustable track units. An automatic levelling system ensures precise adherence to the cutting depth, thus enabling even thin seams or layers to be mined selectively and with maximum accuracy.

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WIRTGEN cutting technology

Results of high quality are the main goal of every construction project. This applies to road rehabilitation using cold milling machines and cold recyclers as well as to soil stabilization and the extraction of useful minerals using surface miners. Optimum interaction between the milling drum, toolholder and pick is essential for precise, efficient paving removal.

WIRTGEN is a market leader in cutting technology and offers customers perfectly matched, high-performance cutting systems. WIRTGEN is also constantly developing its cutting technology components further. Such further developments are largely based on practical experience and feedback from our customers.

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WIRTGEN levelling technology

WIRTGEN levelling technology controls height, depth and slope to achieve results of maximum precision. In the process, the system continuously reconciles the actual values with a preselected target value, correcting any deviations by means of proportional control. State-of-the-art machine engineering ensures levelling results of consistently high quality while at the same time relieving the machine operator of a significant part of his workload.

WIRTGEN offers customers reliable hardware and software developed in-house. Different systems are used depending on the construction project to be completed and local conditions on site.

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Technical specifications

Cutting width max.
Cutting depth
Exhaust emissions category
Power
Max. working speed
Max. travel speed
Operating weight, CE
Cutting width max.
4,200 mm
Cutting depth
650 mm
Exhaust emissions category
EU not rated/US EPA Tier 4f
Power
1194 kW / 1623 HP
Max. working speed
0 – 27 m / min
Max. travel speed
0 – 2,5 km / h
Operating weight, CE
201,300 kg
Please feel free to contact us!

All details, illustrations and texts are non-binding and may include optional additional fittings. Subject to technical modifications. Performance data dependant upon operational conditions.