Description of air leg rock drilling
YT28 type of air leg rock drilling machine is the most strongest,powerful and highly efficient rock drill in the same range.It can give more improved productivity and drill steel economs,which also can be widely used on all rock formation and all kinds of applications.
Feature of YT 28 rock drill:
1.Blast hole diameter is about 34m-42m, drill hole depth is 6m.
2.This kind of machine is a new kind of high efficiency air leg rock drill machinery.
3.It is suitable for drilling and blasting under various of rocks and and direction angles.
4.It is mainly used for blasting holes and other drilling works in a quarries, railway construction, water conservancy construction and defence project facility.
5.First-class level Drilling Tools, suitable for sites without power or air pressure equipments, it has wide adaptability for high mountains and plains, extreme temperature (±40ºC).
Model | YT28 | YT27 | YT29A |
Weight | 28kgs | 27kgs | 26.5kgs |
Length | 661mm | 668mm | 659mm |
Air pressure | 0.4-0.63Mpa | 0.4-0.63Mpa | 0.4-0.63Mpa |
Impact frequency | >=37HZ | >=39HZ | >=39HZ |
Air consumption | <=81L/s | <=86L/s | <=88L/s |
Impact energy | >=70J | >=75J | >=78J |
Cylinder*stroke | 80mm*60mm | 80mm*60mm | 82mm*60mm |
Air pipe diameter | 25mm | 19mm | 25mm |
Shank dimension | 22*108mm | 22*108mm | 22*108mm |
Drilling depth | 6-8m | 5m | 5m |
Bit diameter | 34-45mm | 34-45mm | 34-45mm |