Surface Miner 280 SMi

280 SMi Surface Miner

EU Stage 5/US EPA Tier 4f

9 ft

26 in

Maximum Availability. Maximum Productivity. 100 Percent 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 Maneuvering
Precise Leveling & Automatic Functions
Environmentally Friendly 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 leveling 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

High quality results are the 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 minerals with surface miners. In order to remove pavement with precision and efficiency, it is essential that the drum, pick holder, and pick work together perfectly.

WIRTGEN is the market leader in cutting technology and offers customers high-performance cutting systems whose components are designed to be fully compatible. In addition, WIRTGEN continuously makes advancements to these cutting technology components, incorporating its practical experience and feedback from customers into the process.

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WIRTGEN leveling technology

WIRTGEN’s leveling technology adjusts height, depth, and pitch for extremely accurate results. In the process, the system permanently compares the actual values to predefined target values and adjusts the deviations proportionally. This state-of-the-art machine technology consistently guarantees outstanding leveling results and significantly reduces the machine operator’s workload.

WIRTGEN offers customers reliable hardware and software developed in-house. In this context, a variety of systems are used depending on the construction project and local conditions at the job site.

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Technical specifications

Exhaust emissions category
Operating weight, CE
Displacement
Max. working speed
Cutting width max.
Cutting depth
Exhaust emissions category
EU Stage 5/US EPA Tier 4f
Operating weight, CE
256.949 lbs
Displacement
1,861 in³
Max. working speed
0 - 144.4 fpm (0 - 1.6 mph )
Cutting width max.
9 ft
Cutting depth
26 in

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.