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.

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PRODUCTS DETAILS

product detail

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

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 adapers

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

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

 GUIDE COUPLINGS

THREAD

LENGTH(L)

DIAMETER(D)

Weight

mm

In

mm

In

Kg

T38

190

7-1/2

61

2-13/32

2.2

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