China Mini Hand Held Yt28 Manual Air Leg Rock Drill Machine, Find details about China Coal Mining Rock Drill, Air Power Rock Drill from Mini Hand Held Yt28 Manual Air Leg Rock Drill Machine
Model No | YT24 | YT26 | YT27 | YT28 | YT29A |
Weight (kg) | 24 | 26 | 27 | 28 | 27 |
Length (mm) | 678 | 690 | 668 | 661 | 659 |
Cylinder Dia*Stroke (mm) | 70*70 | 95X60 | 80*60 | 80*60 | 82*60 |
Working Pressure (Mpa) | 0.4-0.63 | ||||
Impact energy (J) | ≥65 | ≥64 | ≥75.5 | ≥70 | ≥78 |
Impact frequency (Hz) | ≥31 | ≥36.5 | ≥36.7 | ≥37 | ≥37 |
Air consumption (L/S) | ≤67 | ≤55 | ≤83.3 | ≤81 | ≤88 |
Hose size (mm) | 25 | 25 | 25 | 25 | 25 |
Rork drill hose diameter(mm) | 34-42 | 34-42 | 34-42 | 34-42 | 34-42 |
Rock drill hose depth (m) | 5 | 5 | 5 | 5 | 5 |
Shank size (mm) | 22x108 | 22x108 | 22x108 | 22x108 | 22x108 |
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