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EQUIPMENT
Other
TOOLING
Others.
Others/
APPLICATION
Mining & Quarry
Water Well & Geothermal
Construction
Exploration
Utility and HDD
Solar Pile Ramming
ABOUT TDS
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Video
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Product
Coupling Sleeve
Product Detail
Because of different applications, we need different lengths of drill stems, so couplings sleeves are used for connecting extension rods. There are semi-bridge couplings and full bridge couplings, the only difference between them is that semi-bridge couplings have a middle stop at the middle of couplings. Usually couplings two ends are the same couplings, like R25, R32,R38,T45, T51, etc .While sometime people need crossover couplings to work, for example, one end is R32 and another end is R38, but basically all couplings are female threads at the two ends.
Connection
Length
diameter
Connection
D1
D2
mm
mm
R22
100
32
R22
R32
160
48
R32
R32
170
55
R32
R25
160
37
R25
R38
170
55
R38
T38
190
55
T38
T45
210
64
T45
T51
225
75
T51
T38
185
55
T38
Product Tags
Coupling Sleeve
Thread Coupling Sleeve
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