- Model NO.: YT28
- Length: 661mm
- Piston Stroke: 60mm
- Air Pipe: 25mm
- Shank Size: 22X108
- Transport Package: 1 Piece Packed in Gift Color Box
- Origin: China
- Weight: 28kg
- Cylinder Dia: 80mm
- Work Pressure: 0.4-0.63
- Hole Diameter: 34-42mm
- Usage: Coal,Ore
- Specification: ISO
- HS Code: 84671900
2. YT23,YT24,YT26,YT27,YT28,YT29A,MZ7665 are Air leg Jack hammer
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Air Leg Rock Drill
YT28 Air-leg Rock Drill is a product that we developed, having advantages of all kinds of air-leg rock drills. Compared with other rock drills, YT28 adopts the latest designing technology, with the superiority of its high speed, low failure rate, durable wearing parts, low noise, and light weight. It is also efficient, energy saving and environmentally sound.
Specification for YT28Â Air Leg Rock Drill:
Technology parameter |
Parameters unit |
parameters |
Weight |
kg |
≈28 |
Length |
mm |
670 |
Cylinder diameter |
mm |
Φ80 |
Piston stroke |
mm |
60 |
Air consumption |
L/S |
≤81.6 |
Impact frequency |
Hz |
≥ 37 |
Impact strength |
J |
≥ 70 |
Drilling speed |
mm/min |
≥ 470 |
Drilling diameter |
mm |
Φ34~45 |
Drilling depth |
m |
5 |
Shank dimensions |
mm |
22×108±1(hex×lengt) |
| Remark: The air pressure of function specification is 0.5Mpa | ||
This type Jack hammer use compressed air as power, mainly used in construction sites, various types of mines, tunnel, railways, water conservancy construction and national defense construction areas for drilling operations.Suitable for either drilling downward or incline of blast holes in medium-hard rock, of for second blasting operation,Centrally grouped control, nimble starting, stable running and easy maintenance.
Specification for Hand Held Jack Hammer:
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| Model No | YO18 | Y19A | YO20 | Y24 | Y26 |
| Weight               (kg) | 18 | 19 | 20 | 24 | 26 |
| Length               (mm) | 550 | 600 | 561 | 604 | 650 |
| Cylinder Dia*Stroke   (mm) | 58*45 | 65*54 | 63*55 | 70*70 | 65*70 |
| Working Pressure     (Mpa) | 0.4-0.63 | ||||
| Impact energy         (J) | ≥22 | ≥28 | ≥26 | ≥44.7 | ≥23 |
| Impact frequency      (Hz) | ≥32 | ≥28 | ≥33 | ≥27 | ≥30 |
| Air consumption       (L/S) | ≤20 | ≤37 | ≤33 | ≤55 | ≤47 |
| Hose size            (mm) | 19 | 19 | 19 | 19 | 19 |
| 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 |
Specification for Air Leg Rock Drill
| Model No | YT23 | YT24 | YT26 | YT27 | YT28 | YT29A | MZ7665 |
| Weight               (kg) | 24 | 24 | 26 | 27 | 28 | 27 | 26 |
| Length               (mm) | 628 | 678 | 690 | 668 | 661 | 659 | 720 |
| Cylinder Dia*Stroke   (mm) | 76*60 | 70*70 | 95X60 | 80*60 | 80*60 | 82*60 | 76*70 |
| Working Pressure     (Mpa) | 0.4-0.63 | ||||||
| Impact energy         (J) | ≥65 |  ≥65 |  ≥64 | ≥75.5 | ≥70 | ≥78 | ≥70 |
| Impact frequency      (Hz) | ≥37 |  ≥31 | ≥36.5 | ≥36.7 | ≥37 | ≥37 | ≥37 |
| Air consumption       (L/S) | ≤78 |  ≤67 |  ≤55 | ≤83.3 | ≤81 | ≤88 | ≤81 |
| Hose size            (mm) | 19 | 25 | 25 | 25 | 25 | 25 | 25 |
| Rork drill hose diameter(mm) | 34-42 | 34-42 | 34-42 | 34-42 | 34-42 | 34-42 | 34-42 |
| Rock drill hose depth   (m) | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Shank size           (mm) | 22x108 | 22x108 | 22x108 | 22x108 | 22x108 | 22x108 | 22x108 |
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