Weight：	24kgs
Overall length：	604mm
Cylinder Dia:	70mm
Piston stroke:	70mm
Operating air pressure：	0. 4-0. 63MPa
Impact frequencey:	27HZ
Air-pipe bore(inner Dia. )：	19 mm
Water-pipe bore(inner Dia. )：	13 mm
Air consumption：	55L/s
Drill rod trailer：	22 x 108 mm
instruction:
Suitable for either drilling downward or inclined blastholes in medium-hard or hard rock, or for second blasting operation. 　? Centrally grouped control, nimble starting, stable running and easy maintenance The rock drill is widely used for dry drilling in the medium-hard and hard rock(f=8-18). It’s suitable for drilling works in surface mine, quarry for boulder blasting and other dry drilling working. FY200B oil reservior is matched with this rock drill to ensure the fine lubrication.