Global technology leader in the manufacture of wire and fibre rope solutions

Exploration Drilling Rigs - Drilling Lines

Dyform Bristar

Benefits:

  • Superior abrasion & wear resistance
  • Crush resistant
  • Corrosion protected IWRC
  • Increased bend fatigue
  • Improved torsional stability
  • Enhanced strength to diameter ratio
  • Improved diameter tolerance
  • Up to 60% more service life*

*Bristar® Ton Mile Performance vs. API standard Drill Line

The pinnacle of drilling line performance is provided by our unique Bristar core drilling lines.

Dyform rope construction reduces sheave wear and point loading which combined with the superior dynamic structural stability provided by the Bristar core delivers exceptional performance and sets the standard for drilling applications.

  • Power Checked
  • Fatigue Checked
  • Quality Assured

Rope Diameter

Approximate Mass

Minimum Breaking Force (Fmin)

Axial Stiffness at 20% Load

Torque Generated at 20% Load

Metallic cross section

In air

EIPS / 1960 grade

Ordinary

Lang’s

in

mm

kg/m

lbs/ft

kN

Tonnes

Tons

MN

Mlbs

N.m

lbs/ft

N.m

lbs/ft

mm2

in2

1

25.4

2.84

1.91

514

52.4

57.7

34.0

8.00

180

133

n/a

n/a

334

0.52

1 1/8

28.6

3.60

2.42

652

66.4

73.2

44.0

10.0

257

190

n/a

n/a

424

0.66

1 1/4

31.8

4.45

2.99

805

82.1

90.5

54.0

12.0

353

261

n/a

n/a

524

0.81

1 3/8

34.9

5.36

3.60

970

98.9

109

65.0

15.0

467

345

n/a

n/a

631

0.98

1 1/2

38.1

6.39

4.29

1160

118

130

78.0

17.0

608

448

n/a

n/a

752

1.17

1 5/8

41.3

7.51

5.04

1360

138

153

91.0

20.0

774

571

n/a

n/a

884

1.37

1 3/4

44.5

8.71

5.85

1580

161

177

106

24.0

969

714

n/a

n/a

1030

1.59

1 7/8

47.6

9.97

6.70

1810

184

203

121

27.0

1190

874

n/a

n/a

1170

1.82

2

50.8

11.4

7.63

2060

210

231

138

31.0

1440

1060

n/a

n/a

1340

2.07

2 1/8

54

12.8

8.62

2320

237

261

156

35.0

1730

1277

n/a

n/a

1510

2.34

2 1/4

57.2

14.4

9.67

2610

266

293

175

39.0

2060

1520

n/a

n/a

1700

2.63

2 1/2

63.5

17.7

11.9

3210

327

361

215

48.0

2810

2080

n/a

n/a

2090

3.24

2 3/4

69.9

21.5

14.4

3760

383

423

261

59.0

3630

2680

n/a

n/a

2530

3.93

3

76.2

25.5

17.2

4470

456

502

310

70.0

4700

3470

n/a

n/a

3010

4.67

Note: Tonnes = 1000kg ­ Tons = 2000lbs
Figures shown are for guidance purposes only. For specific applications requirements please contact Bridon.

This table is for guidance purposes only with no guarantee or warranty (express or implied) as to its accuracy. The products described may be subject to change without notice, and should not be relied on without further advice from Bridon. View the full disclaimer here.