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Rope Characteristics - Twisted

TWISTED ROPE

 

Nylon Twisted Rope

(Professional Duty)

SIZE

Dia.

SIZE

Cir.

Linear

Density

lbs./100'

Minimum

Breaking

Strength

(MBS)*

(Lbs.)

  

Working

Load

Limit

(WLL)**

(Lbs.)

  

   
     

3/16"

5/8"

1.00

900

75

1/4"

3/4"

1.50

1,490

124

5/16"

1"

2.50

2,300

192

3/8"

1 1/8"

3.50

3,340

278

7/16"

1 1/4"

5.00

4,500

410

1/2"

1 1/2"

6.50

5,750

525

9/16"

1 3/4"

8.15

7,200

720

5/8"

2 "

10.50

9,350

935

3/4"

2 1/4"

14.50

12,800

1,420

13/16"

2 1/2

17.00

15,300

1,700

7/8"

2 3/4"

20.00

18,000

2,000

1"

3"

26.40

22,600

2,520

 

*   Minimum Breaking Strength

The Minimum Breaking Strength (MBS) is the force that a given rope is required to meet or exceed in a laboratory test when it is new and unused. MBS values are given in Cordage Institute Standards and individual manufacturers’ specifications.

Minimum Breaking Strength (MBS) is based on tests of new and unused rope of standard construction in accordance with Cordage Institute Standard Test Methods.

There are inherent risks in the use of rope and cordage because such products are subject to highly variable conditions that change over time. Therefore, Design Factor (the ratio between the MBS and WL) selections and Working Load Limits must be calculated with consideration of exposure to risk and actual conditions of use for each application. If in doubt, consult the manufacturer, an experienced engineer or other qualified individual  regarding the design, application and selection of a rope product.

 

**     Working Load / Working Load Limit

The Working Load (WL) is the weight or force applied to rope or cordage in a given application.

The Working Load Limit (WLL) is a guideline for the maximum allowable capacity of a rope product and should not be exceeded.

Applied loads higher than a specified WLL can overstress and damage fibers, resulting in premature rope failure. The Working Load of an application should not exceed the WLL of the rope for optimalproduct performance and the safety of personnel and property.

In accordance with Cordage Institute Standard Test Methods, Working Load Limits (WLL) are for rope in good condition, with appropriate splices, in non critical applications, and under normal service conditions. As a general rule,  Working Loads Limits are 10%-15% of new rope Minimum Breaking Strength.

 

This weight, strength, size and working load chart supersedes all data and specifications sheets published prior to January 1, 2010.

 

Polyester Twisted

(Prfofessional Duty)

SIZE

Dia.

SIZE

Cir.

Linear

Density

lbs./100'

Minimum

Breaking

Strength

(MBS)*

(Lbs.)

  

Working

Load

Limit

(WLL)**

(Lbs.)

  

   
     

3/16"

5/8"

1.20

900

90

1/4"

3/4"

2.00

1,490

149

5/16"

1"

3.10

2,300

230

3/8"

1 1/8"

4.50

3,340

334

7/16"

1 1/4"

6.20

4,500

500

1/2"

1 1/2"

8.00

5,750

640

9/16"

1 3/4

10.20

7,200

900

5/8"

2 "

13.00

9,000

1,130

3/4"

2 1/4"

17.50

11,300

1,610

13/16"

2 1/2

21.00

14,000

2,000

7/8"

2 3/4"

25.00

16,200

2,320

1"

3"

30.40

19,800

2,820

 

*   Minimum Breaking Strength

The Minimum Breaking Strength (MBS) is the force that a given rope is required to meet or exceed in a laboratory test when it is new and unused. MBS values are given in Cordage Institute Standards and individual manufacturers’ specifications.

Minimum Breaking Strength (MBS) is based on tests of new and unused rope of standard construction in accordance with Cordage Institute Standard Test Methods.

There are inherent risks in the use of rope and cordage because such products are subject to highly variable conditions that change over time. Therefore, Design Factor (the ratio between the MBS and WL) selections and Working Load Limits must be calculated with consideration of exposure to risk and actual conditions of use for each application. If in doubt, consult the manufacturer, an experienced engineer or other qualified individual  regarding the design, application and selection of a rope product.

 

**     Working Load / Working Load Limit

The Working Load (WL) is the weight or force applied to rope or cordage in a given application.

The Working Load Limit (WLL) is a guideline for the maximum allowable capacity of a rope product and should not be exceeded.

Applied loads higher than a specified WLL can overstress and damage fibers, resulting in premature rope failure. The Working Load of an application should not exceed the WLL of the rope for optimalproduct performance and the safety of personnel and property.

In accordance with Cordage Institute Standard Test Methods, Working Load Limits (WLL) are for rope in good condition, with appropriate splices, in non critical applications, and under normal service conditions. As a general rule,  Working Loads Limits are 10%-15% of new rope Minimum Breaking Strength.

 

This weight, strength, size and working load chart supersedes all data and specifications sheets published prior to January 1, 2010. 

 

Composite Rope (Poly/Dac)

(Heavy Duty)

SIZE

Dia.

SIZE

Cir.

Linear

Density

lbs./100'

Minimum

Breaking

Strength

(MBS)*

(Lbs.)

  

Working

Load

Limit

(WLL)**

(Lbs.)

  

   
     
         

3/8"

1 1/8"

3.60

2,400

240

1/2"

1 1/2"

6.50

3,700

420

5/8"

2 "

9.50

5,500

675

3/4"

2 1/4"

12.50

7,500

1,000

7/8"

2 3/4"

18.00

10,000

300

1"

3"

21.80

12,000

1,600

 

*   Minimum Breaking Strength

The Minimum Breaking Strength (MBS) is the force that a given rope is required to meet or exceed in a laboratory test when it is new and unused. MBS values are given in Cordage Institute Standards and individual manufacturers’ specifications.

Minimum Breaking Strength (MBS) is based on tests of new and unused rope of standard construction in accordance with Cordage Institute Standard Test Methods.

There are inherent risks in the use of rope and cordage because such products are subject to highly variable conditions that change over time. Therefore, Design Factor (the ratio between the MBS and WL) selections and Working Load Limits must be calculated with consideration of exposure to risk and actual conditions of use for each application. If in doubt, consult the manufacturer, an experienced engineer or other qualified individual  regarding the design, application and selection of a rope product.

 

**     Working Load / Working Load Limit

The Working Load (WL) is the weight or force applied to rope or cordage in a given application.

The Working Load Limit (WLL) is a guideline for the maximum allowable capacity of a rope product and should not be exceeded.

Applied loads higher than a specified WLL can overstress and damage fibers, resulting in premature rope failure. The Working Load of an application should not exceed the WLL of the rope for optimalproduct performance and the safety of personnel and property.

In accordance with Cordage Institute Standard Test Methods, Working Load Limits (WLL) are for rope in good condition, with appropriate splices, in non critical applications, and under normal service conditions. As a general rule,  Working Loads Limits are 10%-15% of new rope Minimum Breaking Strength.

 

This weight, strength, size and working load chart supersedes all data and specifications sheets published prior to January 1, 2010. 

    
 

Polypropylene Twisted Rope

   

(Medium Duty)

   

SIZE

Dia.

SIZE

Cir.

Linear

Density

lbs./100'

Minimum

Breaking

Strength

(MBS)*

(Lbs.)

  

  Working

Load

Limit

(WLL)**

(Lbs.)

   
     

3/16"

5/8"

0.70

720

95

1/4"

3/4"

1.20

1,130

165

5/16"

1"

1.80

1,710

250

3/8"

1 1/8"

2.80

2,440

340

7/16"

1 1/4"

3.80

3,160

400

1/2"

1 1/2"

4.70

3,780

535

9/16"

1 3/4"

6.10

4,600

675

5/8"

2 "

7.50

5,600

800

3/4"

2 1/4"

10.70

7,650

1,100

13/16"

2 1/2

12.70

8,900

1,270

7/8"

2 3/4"

15.00

10,400

1,490

1"

3"

18.00

12,600

1,800

 

*   Minimum Breaking Strength

The Minimum Breaking Strength (MBS) is the force that a given rope is required to meet or exceed in a laboratory test when it is new and unused. MBS values are given in Cordage Institute Standards and individual manufacturers’ specifications.

Minimum Breaking Strength (MBS) is based on tests of new and unused rope of standard construction in accordance with Cordage Institute Standard Test Methods.

There are inherent risks in the use of rope and cordage because such products are subject to highly variable conditions that change over time. Therefore, Design Factor (the ratio between the MBS and WL) selections and Working Load Limits must be calculated with consideration of exposure to risk and actual conditions of use for each application. If in doubt, consult the manufacturer, an experienced engineer or other qualified individual  regarding the design, application and selection of a rope product.

 

**     Working Load / Working Load Limit

The Working Load (WL) is the weight or force applied to rope or cordage in a given application.

The Working Load Limit (WLL) is a guideline for the maximum allowable capacity of a rope product and should not be exceeded.

Applied loads higher than a specified WLL can overstress and damage fibers, resulting in premature rope failure. The Working Load of an application should not exceed the WLL of the rope for optimalproduct performance and the safety of personnel and property.

In accordance with Cordage Institute Standard Test Methods, Working Load Limits (WLL) are for rope in good condition, with appropriate splices, in non critical applications, and under normal service conditions. As a general rule,  Working Loads Limits are 10%-15% of new rope Minimum Breaking Strength.

 

This weight, strength, size and working load chart supersedes all data and specifications sheets published prior to January 1, 2010. 

  
 

Manila

(Lite Duty)

SIZE

Dia.

SIZE

Cir.

Linear

Density

lbs./100'

Minimum

Breaking

Strength

(MBS)*

(Lbs.)

  

Working

Load

Limit

(WLL)**

(Lbs.)

  

   
     

3/16"

5/8"

1.50

406

41

1/4"

3/4"

2.00

540

54

5/16"

1"

2.90

900

90

3/8"

1 1/8"

4.10

1,220

122

7/16"

1 1/4"

5.25

1,580

176

1/2"

1 1/2"

7.50

2,380

264

9/16"

1 3/4

10.40

3,100

388

5/8"

2 "

13.30

3,960

496

3/4"

2 1/4"

16.70

4,860

695

13/16"

2 1/2

19.50

5,850

835

7/8"

2 3/4"

22.40

6,950

995

1"

3"

27.00

8,100

1,160

 

*   Minimum Breaking Strength

The Minimum Breaking Strength (MBS) is the force that a given rope is required to meet or exceed in a laboratory test when it is new and unused. MBS values are given in Cordage Institute Standards and individual manufacturers’ specifications.

Minimum Breaking Strength (MBS) is based on tests of new and unused rope of standard construction in accordance with Cordage Institute Standard Test Methods.

There are inherent risks in the use of rope and cordage because such products are subject to highly variable conditions that change over time. Therefore, Design Factor (the ratio between the MBS and WL) selections and Working Load Limits must be calculated with consideration of exposure to risk and actual conditions of use for each application. If in doubt, consult the manufacturer, an experienced engineer or other qualified individual  regarding the design, application and selection of a rope product.

 

**     Working Load / Working Load Limit

The Working Load (WL) is the weight or force applied to rope or cordage in a given application.

The Working Load Limit (WLL) is a guideline for the maximum allowable capacity of a rope product and should not be exceeded.

Applied loads higher than a specified WLL can overstress and damage fibers, resulting in premature rope failure. The Working Load of an application should not exceed the WLL of the rope for optimalproduct performance and the safety of personnel and property.

In accordance with Cordage Institute Standard Test Methods, Working Load Limits (WLL) are for rope in good condition, with appropriate splices, in non critical applications, and under normal service conditions. As a general rule,  Working Loads Limits are 10%-15% of new rope Minimum Breaking Strength.

 

This weight, strength, size and working load chart supersedes all data and specifications sheets published prior to January 1, 2010. 

  
 

Sisal, Cotton

(Lite Duty)

SIZE

Dia.

SIZE

Cir.

Linear

Density

lbs./100'

Minimum

Breaking

Strength

(MBS)*

(Lbs.)

  

Working

Load

Limit

(WLL)**

(Lbs.)

  

   
     

3/16"

5/8"

1.50

360

36

1/4"

3/4"

2.00

480

48

5/16"

1"

2.90

800

80

3/8"

1 1/8"

4.10

1,080

108

7/16"

1 1/4"

5.26

1,400

156

1/2"

1 1/2"

7.52

2,120

236

9/16"

1 3/4

10.40

2,760

345

5/8"

2 "

13.30

3,520

440

3/4"

2 1/4"

16.70

4,320

617

13/16"

2 1/2

19.50

5,200

743

7/8"

2 3/4"

22.50

6,160

880

1"

3"

27.00

7,200

1,030

 

*   Minimum Breaking Strength

The Minimum Breaking Strength (MBS) is the force that a given rope is required to meet or exceed in a laboratory test when it is new and unused. MBS values are given in Cordage Institute Standards and individual manufacturers’ specifications.

Minimum Breaking Strength (MBS) is based on tests of new and unused rope of standard construction in accordance with Cordage Institute Standard Test Methods.

There are inherent risks in the use of rope and cordage because such products are subject to highly variable conditions that change over time. Therefore, Design Factor (the ratio between the MBS and WL) selections and Working Load Limits must be calculated with consideration of exposure to risk and actual conditions of use for each application. If in doubt, consult the manufacturer, an experienced engineer or other qualified individual  regarding the design, application and selection of a rope product.

 

**     Working Load / Working Load Limit

The Working Load (WL) is the weight or force applied to rope or cordage in a given application.

The Working Load Limit (WLL) is a guideline for the maximum allowable capacity of a rope product and should not be exceeded.

Applied loads higher than a specified WLL can overstress and damage fibers, resulting in premature rope failure. The Working Load of an application should not exceed the WLL of the rope for optimalproduct performance and the safety of personnel and property.

In accordance with Cordage Institute Standard Test Methods, Working Load Limits (WLL) are for rope in good condition, with appropriate splices, in non critical applications, and under normal service conditions. As a general rule,  Working Loads Limits are 10%-15% of new rope Minimum Breaking Strength.

 

This weight, strength, size and working load chart supersedes all data and specifications sheets published prior to January 1, 2010. 


 

  

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