Manufacturer produces pneumatic drilling rock drill jack hammer yt29s

Parameter/Model

YT29S

YT29A

YT27

YT28

Weight(Kg)

26.5

26.5

27

26

Cylinder diameter(mm)

82

82

80

80

Piston stroke(mm)

60

60

60

60

Working air pressure

0.4Mpa~0.63Mpa

0.63Mpa

0.63Mpa

0.63Mpa

Impact energy(J)

≥78J(0.63Mpa)

≥69J(0.5Mpa)

≥50J(0.4Mpa)

≥70 J

≥75.5J

Air consumption(L/S)

≤88L/s(0.63Mpa)

≤63.5L/s(0.5Mpa)

≤52L/s(0.4Mpa)

≤65 L/s

≤80L/s

≤81L/s

Percussive frequency(Hz)

≥39Hz(0.63Mpa)

≥37Hz(0.5Mpa)

≥36Hz(0.4Mpa)

≥37 Hz

≥36.7Hz

≥37Hz

Torque(N·m)

≥26N·m(0.63Mpa)

≥21N·m(0.5Mpa)

≥16.5N·m(0.4Mpa)

Use water pressure(Mpa)

Unlimited

0.3 Mpa

0.3Mpa

0.3Mpa

Boreholes diameter(mm)

34~45mm

34~45mm

34~45mm

34~42mm

Drilled holes depth(M)

5M

5M

5M

5M

Operating temperature(℃)

-30℃~45℃

Bit head size(mm)

R22*108mm

R22*108mm

R22*108mm

R22*108mm