1. No sand grains to be broken under quickly crushing.
2. Easy removal of inferior reclaimed sand by rotary screens.
3. Complete removal of iron dusts by magnetic pulley attached to belt feeder.
4. Complete removal of casting flash, riser, runner etc. by simple touch of button for reverse rotation of ratary drum. No damage to drum happens.
5. Rather long service life to be expected by using abrasive synthetic material “Uniblene” as driving rollers.
6. Easy maintainence, few consumerable parts needed.