1.Introduction of YT29A air leg rock drill

YT29A air leg rock drill is a heavy-duty air rock drill with high efficiency and low consumption. It is especially suitable for construction in railway, highway, hydropower , etc. As a replacement product, it is also a mine roadway for metallurgy, coal and other rock drilling operations.

YT29A air leg rock drill is suitable for drilling horizontal and inclined holes on medium-hard and hard (f=8～18) rocks. It can also drill the mast hole upwards. The diameter of the blast hole is generally 34-45 mm, which is an economical and economical drill. The hole depth is 5 meters. According to the section size and working conditions of the roadway, it can be equipped with FT160A type air leg, FT160C type long air leg, FT160B type short air leg or FT170 type air leg. It can also be used for dry and wet rock drilling with drill carriage or drilling frame.

2.Parameters of YT29A air leg rock drill

Weight 27 kg

Dimensions 659*248*205 mm

Bore diameter 82 mm

Piston structure stroke 60 mm

Working pressure 0.40-0.63 mpa

Impact energy ≥78（0.63mpa）

≥69（0.5mpa）

≥50（0.4mpa） j

Air consumption ≤88（0.63mpa）

≤65（0.5mpa）

≤52（0.4mpa） l/s

Impact frequency ≥39（0.63mpa）

≥37（0.5mpa）

≥36（0.4mpa） hz

Torque ≥20（0.63mpa）

≥17（0.5mpa）

≥15（0.4mpa） n·m

Number of revolutions 300（0.5mpa） r/min

Water pressure 0.3 mpa

Air pipe inner diameter 25 mm

Water pipe inner diameter 13 mm

Drilling diameter 34-45 mm

Maximum drilling depth 5 m

Operating temperature ﹣30-45 ℃

Shank size H22*108 mm

FY250 type oiler

Weight 1.2 kg

Oil content 0.25 l

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 .