1.Introduction of 7655 air leg rock drill

7655 air leg rock drill (YT23 air leg rock drill) is a high efficiency air rock drill with stand. It is mainly used for rock drilling in mining roadway excavation. It is also an important tool in railway, water conservancy construction and national defense stone works. It is matched with FY200A oiler or FT160A air rock drill with stand. Wet rock drilling for medium hard and hard rock, drilling horizontal and inclined blast holes; removing the air leg, or installing it on a trolley.

2. Parameters of 7655 air leg rock drill

Weight 24 kg

Length 628 mm

Piston diameter 76 mm

Piston Stroke 60 mm

Working Pressure 0.5-0.63 mpa

Air Consumption ≤54（0.5mpa）

≤80（0.63mpa） l/s

Impact Frequency 36 hz

Impact Energy ≥65 j

Number Of Revolutions 300 r/min

Shank size 22*108 mm

Drilling diameter 32-42 mm

Maximum drilling depth 5 m

Air pipe inner diameter 25 mm

Water pipe inner diameter 13 mm

Water pressure 0.2-0.3 mpa

FY200A type oil injector

Weight 1.2 kg

Oil storage 200 ml

FT160A type air leg

Leg length 1668 mm

Advancement 1338 mm

Cylinder inner diameter 65 mm

Weight 17 kg

Shandong Master Machinery Group specializes in supplying pneumatic rock drill，the main models are: QCZ-1, QCZ-2, Y6, Y8, Y10, Y24, Y26, YO18, Y19A, Y20LY, 7665, 7655, YT23, YT24, YT27, YT28, YT29A ,YSP45 .