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China water well drilling rig

R28

Bit Diameter:38mm-45mm
Length of drill rod :2800mm-4000mm
Button bit design:Flat face,drop centre,normal and retrac body .
Tungsten carbide(buttons):Spherical ,ballistic and conical .
Applications :Drifting,tunneling,bench .
We have different designs for various rock formations ,and a long service life to drease use costs for users .

                     Button Bit
Dimesions D Flushing hole(mm) Buttons(mm) Angle Class Part No. Button Bit
mm in Fron No size Gauge No size Fron No size Gauge No size
38 1 1/2 1*5 2*5 2*7 5*9 30° H F3038R2807  
41 1 5/8 1*5 2*5 2*8 5*9 30° H F3041R2807
43 1 11/16 1*5 2*5 2*8 5*10 30° H F3043R2807
45 1 3/4 1*5 2*5 2*9 5*11 30° H F3045R2807
 
41 1 5/8 2*5.5 2*5 2*8 6*9 30° S F3041R2808  
 
43 1 11/16 3*5 - 3*8 6*9 30° M F3043R2809  
45 1 3/4 3*5 1*5 3*8 6*10 30° M F3045R2809
 
                      Reaming Tools
40 1 37/64 2*5 2*5.5 2*8 4*9 30° - F3040R2806KP Pilot bit 6° taper
 
76 3 - - - 8*11 35° - F3076R2808KR Reaming bit 6° taper
76 3 2*9 2*7 1*11 14*11 35° - F3076R2815KD Dome bit
 
                      Drill Rod
Dimensions L Dimensions D Part no. Drill Rod
mm ft in mm in
2800 9 2 25 1 1/8 F2128R32R2828 Hex rod with threads R28/R32 108
3100 10 2 25 1 1/8 F2128R32R2831   
3700 12 2 28 1 1/8 F2128R32R2837
 
4310 5 - 25 1 F2132R32R2843 Hex rod 32 with threads R28/R32
 
                     Coupling 
L(mm) Dimensions D Part no. Coupling
mm in
160 37 1 29/64 MX-R283716 R28-R28
 
 
171 45 1 3/4 MX-R28R324517
Crossover coupling R28-R32
 
 
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