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Rock drilling tools manufacturer ProDrill: Model No. YT27 Pusher Leg Rock Drills applied for underground mining, drifting. It's one of the major quarry rock drills.
| Model | YT24 | YT27 | YT28 | YT29A | YSP45 |
| Weight(kg) | 24 | 26 | 26 | 26.5 | 1420 |
| shank (mm) | 678 | 668 | 661 | 659 | |
| cylinder dia (mm) | 70 | 80 | 80 | 82 | 95 |
| pistion stroke (mm) | 70 | 60 | 60 | 60 | 47 |
| working pressure(Mpa) | 0.4 | 0.4-0.5 | 0.4 | 0.4-0.5 | 0.63 |
| impact energy (J) | ≥70 | ≥70 | ≥73.5 | ||
| impact frequency(Hz) | ≥25 | ≥36 | ≥28 | ≥37 | ≥46 |
| air consumption (L/s) | 55 | ≤85 | ≤65 | ≤113.3 | |
| working water pressure(Mpa) | ≤2.7 | 0.2-0.3 | 0.2-0.3 | 0.3 | |
| air pipe inner dia (mm) | 19 | 25 | 25 | 25 | 25 |
| water pipe inner dia(mm) | 13 | 13 | 13 | 13 | 13 |
| rock drill hole dia(mm) | 34-42 | 34-42 | 34-42 | 34-45 | 34-42 |
| rock drill hole depth (m) | 5 | 5 | 5 | 5 | 6 |
| shank size(mm) | 22*108 | 22*108 | 22*108 | 22*108 | 22*108 |
YT23, YT24, YT27, YT28, YT29 Air Leg Hand-Held Pneumatic Rock Drill Machine for Quarry and Mining
YT24, YT28 series pusher leg rock drills key features as below:
1. Fit for wet drilling in medium-hard or hard rock
2. Grouped control mechanism, quick to start up, with "air on, water on, air off, water off" mechanism,
convenient to handle, maintaining and repairing is very easy.
3. Energy-saving and efficient, highly interchangeable and reliable performance of parts with long service of life.
4. YT23 differs from similar products particularly in its high efficiency strong flushing and powerful torque
Advantages:
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