Eickhoff modular principle of design

With our modular system based on a wide range of products, Eickhoff customers have flexibility of choice to receive almost tailor-made machine-solutions best suited for their job.

Eickhoff’s modular system is founded on components specially designed to avoid the problems of handling and transport and installation in severe environment – a decisive factor in tunnelling and mining operation.

• A Solid Basis: The Crawler-Type Undercarriage
  The undercarriage is built to international standards. Due to its high tractive power, it can achieve full penetrating in initial cuts, at gradients of up to 18°. When it comes to using maximum cutting force even a soft floor remains almost unaffected.
  
  Another reason for the stable performance of the machine is the carefully balanced ratio between the cutting power (kW) and the weight (t).
  
  
• The Right Cutting System for Each Application
  Cutting conditions vary from roadway to roadway. This calls for different type of cutter booms and cutter heads. Our in-line and transverse cutter heads and the telescopic booms can be adapted to meet various requirements:
  advanced crown headings, deep undercuts, round cross-sections, improved profiling, sumping-in without crawler action, cutting behind arches.
  
  Our roadheading machines can operate effectively in medium hard rock or minerals of well over 100 MPa compressive strength. Even at 120 MPa the results obtained with Eickhoff Roadheaders are impressive both economically and technically. They can cut cross sections from 7 up to 63 m? from the stationary position. Tunnels of any shape and size – up to roadway width of 9.80 m and a height of 7.00 m - can be driven with this type of machine.
  
  
• Dust and Sparks are Hazards of the Past
  We have developed a pick track spraying system to cool the cutting tools and dramatically reduce sparking and dust generation. This system is based on water jets inside the cutter head where pressure can be adjusted.
  
  Dust collection is effected by integrated suction ducts built into the machine and with this design the operator’s view of the tunnel face is completely unimpeded.
  
  
• Which Loading System for Which Type of Rock?
  A single loading system is inadequate when related to the different types of rock and the varying degrees of such factors as fragmentation, composition, uniformity and water content. With Eickhoff you have two interchangeable types of loading systems – the loading discs and the gathering arms.
  
  
• The Conveyor can be Adapted to Meet all Requirements
  Design efficiency has meant that a conveyor with an unusually large throat has been incorporated into the chassis of Eickhoff roadheaders while achieving relatively low over-all height for all standard machines.
  
  Hydraulically slewable and height-adjustable belt conveyors provide optimum operations in relation to the final mucking-out system behind the machine.
  
  
• A Working Platform Extends the Possibilities
  The platform on the top of the machine is a design feature for all Eickhoff boom-type Roadheaders. It can act as a mounting for optional equipment such as booms for bolting and face drilling and can also be used as a stand for various types of work at roof level.
  
  
• Special Versions for Special Applications
  Standard components from the ET range can be used in combination with excavators as carriers or as secondary cutting units for dressing and alignment of walls, crowns, and floors in order to obtain a significant improvement for the true profile.
  
  ET booms mounted on TBM frames allows the cutting of floor ledges to convert TBM round cross-sections into a D-shape, simultaneously with the advance of the main heading system; they can be mounted into shields and find applications as telescopic booms for advanced crown headings.

Contact:
Mr. Jörg Wierzchowski
Phone: +(49)234-975 2043
Fax: +(49)234-975 2040
Mail: jwierzchowski@eickhoff-bochum.de