YT29A YT29A pneumatic drill YT29A Air-leg Rock Drill Rock Drill 
 Weight 26.5 kg 
 Dimensions (L * W * H) 659 * 248 * 205 mm 
 Bore 82 mm 
 Piston stroke of 60 mm 
 Working pressure 0.4-0.63 MPa 
 Impact energy ≥ 70 joules 
 Drilling gas consumption ≤ 65 l / s 
 Drilling impact frequency ≥ 37 Hz 
 Use water pressure 0.3 MPa 
 Tracheal internal diameter of 25 mm 
 Water pipe inner diameter of 13 mm 
 Suitable for drilling 34-45 mm diameter 
 Maximum bore depth of 5 m 
 Shank size 22 * ??108 mm 
 The FY250 type oiler: 
 Weight 1.2 kg 
 The Yung oil 0.25 l 
 FT160A type gas leg: 
 Air-leg length of 1668 mm 
 Advancing stroke of 1338 mm 
 Cylinder bore of 65 mm 
 Weight 17 kg 
 FT160B type gas leg: 
 Air-leg length of 1428 mm 
 Advancing stroke of 1098 mm 
 Cylinder bore of 65 mm 
 Weight 16 kg 
 FT160C type leg of the long-winded: 
 Air-leg length of 1820 mm 
 Advancing stroke of 1490 mm 
 Cylinder bore of 65 mm 
 Weight 18 kg 
 FT170-type gas leg: 
 Air-leg length of 1668 mm 
 Advancing stroke of 1338 mm 
 Cylinder bore of 67 mm 
 Weight 18 kg