Stone sandblasting machine | tombstone lettering sandblasting machine | technical parameters: working space size: 500 * 300 * 450 Host Dimensions: 800 * 500 * 900 Power: 220V 50HZ Machine Lighting: 220V 30W CFL dust Motor: 220V 50HZ 550W compressed air source: 2-7bar (kg / m) Flow: 0.6-1.2m3 / min machine bearing weight: 80kg biggest advantage: 1, host and work for the split cabin, can move freely. 2, one-hand operation, easy to work, can be sitting job. 3, automatic back sand, dust effect, visual clarity job positions.