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Coupling sleeves

Used in extension rod connection, its function is to transmit impact energy from the rock-drill piston, as well as rotation torque, into the drill string with no losses. It must withstand and transmit up to 6300 blows per minute from the piston continually, with great endurance and dependability. Such as Coulping R25,CoulpingR25/R32,CoulpingR28/T38,Coulping R32,Coulping T38 etc.

    Used in extension rod connection, its function is to transmit impact energy from the rock-drill piston, as well as rotation torque, into the drill string with no losses. It must withstand and transmit up to 6300 blows per minute from the piston continually, with great endurance and dependability. Such as Coulping R25,CoulpingR25/R32,CoulpingR28/T38,Coulping R32,Coulping T38 etc.


    (1)  Size: R25,R28, R32, R35,R38, T38, T45, T51,R25-R28, R22-R25, R25-R32 R32-R38, R32-T38.

    (2)  Length: 140mm-235mm

    (3)  Package: in wooden case or in carton.

    (4)  Productivity: 5000pcs/ month

    COUPLINGS

    Couplings 

    THREAD

    LENGTH(L)

    DIAMETER(D)

    Weight

    mm

    In

    mm

    In

    Kg

    R22

    140

    5-1/2

    30

    1-3/16

    0.45

    R25

    150

    5-29/32

    33

    1-5/16

    0.5

    R25

    150

    5-29/32

    35

    1-3/8

    0.52

    R28

    150

    5-29/32

    39

    1-17/32

    0.6

    R32

    150

    5-29/32

    42

    1-21/32

    0.9

    R32

    150

    5-29/32

    44

    1-23/32

    0.95

    R38

    170

    6-11/16

    55

    2-5/32

    1.75

    T38

    190

    7-1/2

    52

    2-3/64

    1.6

    T38

    190

    7-1/2

    55

    2-5/32

    1.95

    T45

    210

    8-1/4

    63

    2-15/32

    2.75

    T45 HD

    210

    8-1/4

    66

    2-19/32

    3.2

    T51

    225

    8-7/8

    72

    2-13/16

    3.85

    T51 HD

    225

    8-7/8

    76

    3

    4.68

    COUPLINGS – Full Bridge 

     COUPLINGS - Full Bridge

    THREAD

    LENGTH (L)

    DIAMETER (D)

    Weight

    mm

    In

    mm

    In

    Kg

    R25

    200

    7-7/8

    35

    1-3/8

    0.8

    R28

    160

    6-5/16

    39

    1-17/32

    0.7

    R32

    200

    7-7/8

    44

    1-23/32

    1.5

    R32

    300

    11-13/16

    44

    1-23/32

    2.6

    R38

    210

    8-1/4

    55

    2-5/32

    2.6

    T38

    205

    8-1/16

    55

    2-5/32

    2.31

    T45

    230

    9-1/16

    63

    2-15/32

    3.5

    T51

    250

    9-13/16

    72

    2-13/16

    5.3

    T51

    250

    9-13/16

    76

    3

    6.2

    COUPLING ADAPTERS – Semi Bridge

    COUPLING ADAPTERS - Semi Bridge 

    THREAD

    LENGTH(L)

    DIAMETER(D)

    Weight

    (A)-(B)

    mm

    In

    mm

    In

    Kg

    R22 – R25

    142

    5-19/32

    35

    1-3/8

    0.6

    R25 – R28

    150

    5-29/32

    38

    1-1/2

    0.6

    R25 – R32

    150

    5-29/32

    44

    1-23/32

    1.1

    R28 – R32

    150

    5-29/32

    44

    1-23/32

    1.05

    R28 – R38

    160

    6-5/16

    55

    2-5/32

    1.93

    R28 – T38

    165

    6-1/2

    55

    2-5/32

    2.2

    R32 – R38

    160

    6-5/16

    55

    2-5/32

    1.8

    R32 – T38

    165

    6-1/2

    55

    2-5/32

    2.1

    R38 – T38

    180

    7-1/16

    55

    2-5/32

    1.8

    R38 – T45

    195

    7-11/16

    63

    2-15/32

    2.8

    T38 – T45

    195

    7-11/16

    63

    2-15/32

    2.8

    T45 – T51

    218

    8-19/32

    72

    2-13/16

    4.35

    COUPLING ADAPTERS – Full Bridge

     COUPLING ADAPTERS - Full Bridge

    THREAD

    LENGTH (L)

    DIAMETER (D)

    Weight

    (A) - (B)

    mm

    In.

    mm

    In.

    Kg

    R22 – R25

    165

    6-1/2

    35

    1-3/8

    0.82

    R25 – R28

    170

    6-11/16

    39

    1-17/32

    1

    R25 – R32

    200

    7-7/8

    44

    1-23/32

    1.7

    R25 – R38

    170

    6-11/16

    55

    2-5/32

    2

    R25 – T38

    170

    6-11/16

    55

    2-5/32

    1.9

    R28 – R32

    170

    6-11/16

    44

    1-23/32

    1.3

    R28 – T38

    170

    6-11/16

    55

    2-5/32

    2.4

    R32 – T35

    170

    6-11/16

    49

    1-29/32

    2

    R32 – R38

    205

    8-1/16

    55

    2-5/32

    2.6

    R32 – T38

    205

    8-1/16

    55

    2-5/32

    2.6

    R32 – T45

    215

    8-15/32

    63

    2-15/32

    3.6

    R38 – T38

    205

    8-1/16

    55

    2-5/32

    2.4

    R38 – T45

    215

    8-15/32

    63

    2-15/32

    3.3

    R38 – T51

    225

    8-7/8

    72

    2-13/16

    4.5

    T38 – T45

    215

    8-15/32

    63

    2-15/32

    3.3

    T38 – T51

    225

    8-7/8

    72

    2-13/16

    4.5

    T45 – T51

    240

    9-7/16

    72

    2-13/16

    4.6


    BIT ADAPTERS

    BIT ADAPTERS 

    THREAD

    LENGTH(L)

    DIAMETER(D)

    Weight

    (A)-(B)

    mm

    In.

    mm

    In.

    Kg

    R25 – R28

    185

    7-9/32

    44

    1-23/32

    0.9

    R25 – R32

    185

    7-9/32

    44

    1-23/32

    1.2

    R28 – R25

    185

    7-9/32

    44

    1-23/32

    1.3

    R28 – R32

    185

    7-9/32

    44

    1-23/32

    1.15

    R32 – R25

    210

    8-1/4

    44

    1-23/32

    1

    R32 – T32

    270

    10-5/8

    44

    1-23/32

    2

    R32 – R38

    270

    10-5/8

    44

    1-23/32

    2.3

    R32 – T38

    270

    10-5/8

    44

    1-23/32

    2.5

    R32 – T45

    360

    14-3/16

    44

    1-23/32

    3.9

    R35 – R32

    280

    11-1/32

    55

    2-5/32

    2.6

    R38 – R32

    280

    11-1/32

    55

    2-5/32

    2.5

    R38 – T32

    280

    11-1/32

    55

    2-5/32

    2.5

    R38 – T38

    280

    11-1/32

    55

    2-5/32

    2.5

    R38 – T45

    280

    11-1/32

    55

    2-5/32

    3.3

    T38 - R32

    280

    11-1/32

    55

    2-5/32

    2.5

    T38 - R38

    280

    11-1/32

    55

    2-5/32

    2.5

    T38 - T45

    280

    11-1/32

    55

    2-5/32

    3.3

    T45 - R38

    280

    11-1/32

    63

    2-15/32

    2.9

    T45 - T38

    280

    11-1/32

    63

    2-15/32

    2.8

    T45 - T51

    285

    11-7/32

    63

    2-15/32

    4.1

    T45 – ST58

    280

    11-1/32

    72

    2-13/16

    6

    T51 - R38

    285

    11-7/32

    72

    2-13/16

    3.85

    T51 - T45

    285

    11-7/32

    72

    2-13/16

    3.85

    T51 – ST58

    285

    11-7/32

    76

    3

    5.7

    T51 – GT60

    345

    13-1/2

    82

    3-1/4

    8.5

    ST58 – T51

    310

    12-3/16

    81

    3-3/16

    5.4

    GT60 – T51

    360

    14-3/16

    82

    3-1/4

    6.5

    GT60 – ST58

    345

    13-1/2

    82

    3-1/4

    6.7


    GUIDE COUPLINGS

     GUIDE COUPLINGS

    THREAD

    LENGTH(L)

    DIAMETER(D)

    Weight

    mm

    In

    mm

    In

    Kg

    T38

    190

    7-1/2

    61

    2-13/32

    2.2