... or forging which rolling continually in the barrel, Aiming at removing the residual sand or ... automatic stopping device7, easy operationMain technical parameters Barrel Diameter Φ130mmBarrel internal length1200mmRotating speed4r/minEffective volume0.33m ... ironcasting8-12min2, steel-casting15-20min3, forging20-25minelectromotor1, barrel 2.2kw2, impeller head11kw3, dust collector2.2kwShot circulation80 ...