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YTR230D/YTR300D Rotary Blasthole Drilling Rig

YTR series rotary drilling rig is high efficiency construction drilling rig suitable for the construction of base piles such as bridges, railroads, and building construction. It is featured with high efficiency, power-saving, environmental protection, low machine malfunction rate, and high reliability.

   

Performance features

1. YTR230D/YTR300D rotary blasthole drilling rig adopts parallelogram structure of dual boom, which is featured with good flexibility and high construction efficiency. At the same time, torsional capacity of luffing mechanism is enhanced to make it more suitable for hard rock construction in the southwest region.

2. Power head adopts two sets of motors and two-speed reducer to realize powerful and safe operation and high transmission efficiency; three level controls can be chosen according to various soil layers and operation conditions to greatly enhance the construction efficiency.

3. Impact winch is fitted with freefall releasing reducer. When confronting with hard rock, the impact winch can break rock and then collect broken bits with the drilling bucket, which will improve rock breaking efficiency; when facing with pebble bed construction, the impact winch can be used for percussion and squeezing to form protection wall; When confronted with backfill soil construction, the impact winch can be used for percussion and compaction to form solid protection wall and avoid landslides.

4. The rotary drilling rig is equipped with telescopic chassis to meet various transportation conditions and widen the whole machine to 4.3m at work and enhance machine stability and construction safety;

5. Casing tube is optional, which may help to carry out the full casing tube construction method;

6. The main winch positioned in the rear adopts stretched large diameter drum to realize the single layer steel rope winding, which can greatly increase the service life of steel rope.

7. The YTR230D/YTR300D rotary blasthole drilling rig adopts centralized lubrication to realize easy maintenance and enhance its detachability and serviceability.

8. Forehead oil cylinder is added to realize automatic folding mast of the pulley yoke, reduce labor intensity and increase work efficiency.

9. Supporting oil cylinder is additionally fitted to realize supporting when the impact winch is at work so that the machine is more stable by reducing vibration.

Parameter

Model Unit YTR230D YTR300D
Max. drilling diameter mm 2000 2500
Max. drilling depth m 52/68 30/52/76
Engine Model DE12TIA DE12T
Manufacturer Doosan South Korea Doosan South Korea
Power kW 230 260
Power head Max. output torque kN·m kN.m 230 300
Drilling speed r/min 7~35 6~31
Oil cylinder Max. pressure kN 215 215
Max. hoist capacity kN 230 230
Forcing stroke mm 5330 5330
Main winch Lifting power kN 240 280
Max. hoisting speed m/min 65 65
Diameter of wire rope mm 28 36
position rear rear
Auxiliary winch Lifting force kN kN 100 100
Max. lifting speed m/min 50 70
Diameter of wire rope mm 26 26
Mast Forwards inclination ° 3 5
Angle of inclination(both left and right) ° ±3.5 ±3.5
Chassis Model
Width of track shoe mm 800 800
Pulling force kN 410 570
Wheel track mm 4950 5000
Dimension Width of the machine while working mm 4300 4300
Height of the machine while working mm 22420 20600/22300
Length of the machine while transportation mm 16070 17260/19710
Height of the machine while transporting mm 3575 3700
Width of the machine while transporting mm 3000 3300 3000
Weight Working condition t 72 100
Transportation condition t 60.8 85
Standard drill pipe specification Lock bar φ440-4X14.5m-200B 12m 3 jointφ508 lock-type drilling pipe
Longest lockbar specification Lock bar φ440-4X15m-200B 14.5m 4 jointφ508 lock-type drilling pipe