Vertical Shaft Impact crushers that use an anvil type crushing chamber are well proven for the quick and efficient reduction of limestone and other less abrasive stones and minerals. The REMco ST/AR crushers are a variation of the REMco SandMax and RockMax series.

These machines share many of the same heavy-duty designs and components, as well as the very successful bearing cartridge and main shaft design. REMco ST/ARs use an innovative reversible anvil design which allows for maximum utilization of the anvil type wear iron. This feature provides for a maximum crushing efficiency when the anvils are new, concentrating the wear on half of the anvil face. The anvils can then be easily turned, providing a complete new crushing face on the same anvil. This maintains maximum crushing efficiency for the duration of the life of the anvil. This also reduces scrap loss. REMco ST/ARs are fully convertible VSI crushers which can be easily converted from anvils to rock-on-rock chambers if the feed material dictates that such a change is appropriate. The ST/AR designation means these machines are fitted with a Swing Top / Anvil Ring design.

ST/AR VSI CRUSHERS -- General Application Guidelines
REMco ST/AR VSI crushers are rock-on-anvil vertical shaft crushing machines designed to operate a second, third or fourth stage crushers for processing soft to medium/hard rocks, ores or minerals which contain less than 15% abrasives (silica, alumina and iron). Maximum feed size is 4” (100 mm) and product sizes can be from 1 1/2” (40 mm) to minus 6 mm.

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