Surface Miner 280 SMi

280 SMi Surface Miner

EU Stage 5/US EPA Tier 4f

783 kW / 1,065 HP

2,750

mm

Maximum availability. Maximum productivity. 100 per cent mining

  • High-performance surface miners for reliable, selective extraction of raw materials by direct loading, sidecasting, or cut-to-ground.
  • Raw materials are extracted and crushed in situ in purest quality in a single operation – without drilling and blasting, and with minimal environmental impact.
  • The 2,750 mm cutting drum unit with a cutting depth of up to 650 mm is precisely adaptable to each specific application and achieves outstanding cutting performance with minimal cutting tool wear.
  • The powerful rear loading conveyor with a movable counterweight can be elevated and slewed to ensure a perfect flow of materials and makes it possible to load trucks with payloads of up to 100 tons.
  • Its air-conditioned and soundproofed operator’s cabin with all-round glazing is swivel-mounted on the front chassis column and provides a fatigue-free and productive working environment.
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Highlights
Reliability and availability
Highly efficient cutting technology
High productivity
Advanced engine technology
Intelligent maintenance concept
Effective safety concept
High operator-comfort – perfect ergonomics
Fast turning & easy manoeuvring
Precise levelling & automatic functions
Environmentally sustainable machine technology

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

Exhaust emissions category
Operating weight, CE
Displacement
Power
Max. working speed
Cutting width max.
Cutting depth
Exhaust emissions category
EU Stage 5/US EPA Tier 4f
Operating weight, CE
116,550 kg
Displacement
30.5 l
Power
783 kW / 1,065 HP
Max. working speed
0 – 44 m / min (0 –2,6 km / h)
Cutting width max.
2,750 mm
Cutting depth
650 mm

All details, illustrations and texts are non-binding and may include special equipment. We reserve the right to make technical changes without prior notice. Performance data are dependent upon actual operational conditions.