Stone Pneumatic Engraving Machine

1, Size: 175mm*35mm

2, Air consumption: 0.1m3/min

3, Number of impacts: 5500BPM

4, Air pressure: 70-95Pal

5, 2 type: type 1 is only Stone Pneumatic Engraving Machine, and type 2 is with 6 pieces Alloy knife and 100 pieces springs.