Surface Miner 220 SM 3.8

220 SM 3.8 Surface Miner

3,800

mm

350

mm

EU not rated/US EPA Tier 2

Maximum performance in soft rock

  • The design of the 3.8-m cutting drum unit installed in the 220 SM 3.8 / 220 SMi 3.8 has been optimized for the mining of soft rock to ensure maximum productivity at minimum operating costs.
  • The surface miner extracts natural resources at a cutting depth of up to 350 mm and with an unconfined compressive strength of up to 35 MPa selectively.
  • The compact 220 SM 3.8 / 220 SMi 3.8 is the ideal candidate for use in small-scale to largescale mining operations.
  • Natural resources are extracted in a single, environmentally sustainable operation without drilling and blasting, yielding material of high quality.
  • Windrowing enables the mined material to be deposited behind the machine in a continuous process.
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Highlights
High-production cutting drum unit
High-performance engine technology
Reliable operation
Ease of operation and high operator comfort
Durable components
Effective safety concept
Quick manoeuvring
Intelligent maintenance concept
Efficient machine management

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
Displacement
Power
Max. working speed
Max. travel speed
Operating weight, CE
Cutting width max.
3,800 mm
Cutting depth
350 mm
Exhaust emissions category
EU not rated/US EPA Tier 2
Displacement
30.5 l
Power
708 kW / 963 HP
Max. working speed
0 – 84 m / min (0 – 5 km / h)
Max. travel speed
0 – 84 m / min (0 – 5 km / h)
Operating weight, CE
58,050 kg

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