Specification :

Detailed Product Description
UNIQUE FEATURES:
1. Outstanding Drilling Speed
The YO29, using a bore cylinder and a tubular valve with high air efficiency, produces
strong percussion and torque and performs marvellously in drilling hard rock as well as
semi-long hole.
2. Easy Operaition
A good balance between the rock drill body and the air leg ensures a stabilized operation
with less recoil. Besides, the exhaust deflector (muffler) can be oriented in any direction
to keep the exhaust air out of the operator's way.
3. Durability and Continued High Performance
The external parts (major key parts) of the rock drill forged by special steel possess high
rigidity and surface hardness, and the hard-working internal parts are sufficiently lubricated.
So the in-service life of parts is extended, resulting in a substantial saving in spare
parts cost.
4. Supporting Air Leg Providing Stable Feed Pressure
The supporting air leg is designed to match ideally with this type of drill
so that the rock drill will fully display its performance. Made of Super Duralumin,
the leg is light in weight and very easy to handle.
5. Wide Application
It is most fit for drilling horizontal and inclined blastholes in medium hard and/or
hard rock (hardness = 8~18), and may also be used for marking roof bolting holes or
fixed onto the . The drill is an important instrument in mining, railway, and water
conservancy projects.
SPECIFICATION:

Body Weight 26.5 kg
Body Size ( L x W x H ) 660 x 247 x 195 mm
Cylinder Dia. 81 mm
Piston Stroke 60 mm
Rotation Torque ¡�22 N.m
Impact Frequency ¡�40 Hz
Impact Energy ¡�75 J
Air Consumption ¡Ü82 L/s
Working Air Pressure 0.63 MPa
Working Water Pressure 0.30 MPa
Air Hose Inner Dia. 25 mm
Water Hose Inner Dia. 13 mm
Drill Bit Size 34 - 42 mm
Shank Size (HEX x Length) 22 ¡� 108 mm
Effective Drilling Depth 5 m