Across 60 years reliability led to the world validity of GRElF rough grinding  machines

The product group GREIF roughing grinding machines is in their current variety the result of a technical development for many decades of individual basic models to different model versions due to modifying user-specific request, for example at cutting velocity, drive power, degree of automation and profitability.

High-speed one disks grinding machines (series R/S)

For particularly high cutting velocities to 80 m/sec the indirectly propelled are laid out for disks grinding machines of the series R/S. The separate drive  of the sharpening wave over drive belts enables the use of high performance, surface- cooled three-phase motors as well as the generous organization of the  work space forwards and laterally to the grinding wheel. Like that the stand front is directly reset to the sharpening wave to, so that the workpieces (also  with interior loops of bulky sections) in the work space can be handled optimal

Mirror-image machine versions

The one disks grinding machines are supplied when desired also to link rushing guidance, i.e. with the grinding wheel at the machine left side. The machines  can be set up thus in pairs and symmetrically similarly to a double-ended pedestal grinder on the workstation.

Favourable it is however that the user can determine the distance from bias point to bias point according to its special operation conditions (conveyer system, parking bays) freely.

Safety protection hoods

The protection hoods used for the different cutting velocities and pulley sizes  are recognized by the German grinding wheel committee (DSA). In particular for the rates 60 and 80 m/sec additionally an interior protection hood (" rotation visor ") is used, which is torn in such a way with disks break by individual  fragments from its attachment the fact that it locks the protection hood opening  to the work space and protects the worker against violations (fig. 2).

Ideal runing properties

The separation from electric drive and sharpening wave leads by the arrangement of the heavy engine at ground level (fig. 3) to a favorable

mass distribution, together with which large space occupied, which grey cast iron and the guidance of the protection hood follow well-known absorption characteristics of the stand material on a its own bed, by which the impacts occurring when roughing are led directly perpendicularly into the soil, from the deep-seated emphasis the oscillation-poor run world-wide estimated at GREIF rough grinding machines.

The assigned engines of the size 132 or 160 correspond to the design B 9  according to DIN 42950 and are at least protected after IP 54 depending upon manufacturer.

Air necessary for the cooling of the high performance engines is available due to the engine arrangement at the machine exterior.

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Copyright © by Greif Grindrobot Schleifsystem GmbH, Gevelsberg, 2001. All rights reserved.