Offshore Lifting Ropes

Galvanized High Performance Crane Ropes Stocked in the Gulf of Mexico

Bridon American7600 S. Santa Fe Drive-

Building 'B' East, Houston, TX 77061marketing@bridonamerican.com bridon.com/usa | 1-800-521-5555

Global ExperienceLocal SupportGlobal technology leader in the manufacture of wire and fiberrope solutions for the world's most demanding applications.

Global HQ and Bridon Technology Center

18 Sales and Distribution Hubs

11 Manufacturing Locations

DISCLAIMER: All statements, technical information and recommendations contained herein are believed reliable, but no guarantee is given as to their accuracy and/or completeness. This publication and the products described herein may be changed or updated without notice. This publication is made available on the basis that all liability whatsoever for any loss or damage arising, directly or indirectly, out of or in connection with your use of this publication, is excluded to the fullest extent permitted by law. The user must determine the suitability of the product for his particular purpose either alone or in combination with other products and shall assume all risk and liability in connection therewith. While every attempt has been made to ensure accuracy in the content of the training and tables, the content in this publication does not form part of any contract. This document is published by Bridon American. Use of this publication shall be governed in accordance with the laws of the United States and Pennsylvania courts shall have exclusive jurisdiction over any dispute concerning your use of this publication.

INTELLECTUAL PROPERTY: All rights reserved. No parts of this publication may be reproduced or transmitted in any form or by any means, including photocopying and recording, without the written permission of the copyright holder, application for which should be addressed to Bridon American. Such written permission must also be obtained before any part of this publication is stored in a retrieval system of any nature. All trademarks used in this publication belong to Bridon or the registered proprietors of such marks. All rights relating to such trademarks, copyright and any other intellectual property rights are reserved for Bridon or the person/organization contributing the relevant materials.

DISCLAIMER: All statements, technical information and recommendations contained herein are believed reliable, but no guarantee is given as to their accuracy and/or completeness. This publication and the products described herein may be changed or updated without notice. This publication is made available on the basis that all liability whatsoever for any loss or damage arising, directly or indirectly, out of or in connection with your use of this publication, is excluded to the fullest extent permitted by law. The user must determine the suitability of the product for his particular purpose either alone or in combination with other products and shall assume all risk and liability in connection therewith. While every attempt has been made to ensure accuracy in the content of the training and tables, the content in this publication does not form part of any contract. This document is published by Bridon American. Use of this publication shall be governed in accordance with the laws of the United States and Pennsylvania courts shall have exclusive jurisdiction over any dispute concerning your use of this publication.

INTELLECTUAL PROPERTYAll rights reserved. No parts of this publication may be reproduced or transmitted in any form or by any means without the prior written permission of the copyright holder, application for which should be addressed to Bridon International Limited. All trademarks used in this publication belong to Bridon or the registered proprietors of such marks. All rights relating to such trademarks,copyright and any other intellectual property rights are reserved for Bridon or the person/organisation contributing the relevant materials.

“Bridon” and “Dyform are registered trademarks of Bridon Limited.

09/2015 Edition 2

Dyform 34LR Bend Fatigue Results

Protect your investment with Bridon Galvanized Wire Rope

Lubrication

100%

220%

35%

160%

150%

During the wire rope manufacturing process, the space between the wires is normally filled with petroleum based lubricant.

Lubricants help the rope to function by protecting the wires from corrosion and extending fatigue life.

The bar chart above shows that when lubricants are applied to wire ropes during service, it increases their service life.

Plastication of the rope interior, as illustrated opposite can improve the rope performance further in some offshore applications.

Galvanized

If the wire is to be used inan offshore environment, then a galvanized coating is recommended.

Galvanized coatingsprovide protection by serving as a sacrificial anode; even if the coating becomesdamaged in service, the zinc will preferentially corrode, providing protectionfor the steel.

Protect your investment with Bridon Galvanized Wire Rope

Resistance to RotationDyform® (Compaction) Bridon manufactures ropes using a unique Dyforming process that compacts the strands as shown in Fig 1. The smooth surface of the “Dyform” product provides improved rope to sheave contact leading to reduced wear on both rope and sheave. Increased cross-sectional steel area and improved inter - wire contact ensures that the rope will operate with lower internal stress levels resulting in longer bending fatigue life and lower costs.

All ropes will rotate to some degree when loaded. The torque, or turn, generated will increase as the load applied increases. (See Fig 4 and Fig 5). Having recognized what can happen when a rope is loaded it is necessary to select the correct type of rope. It is important to determine whether there is a requirement to use a low-rotation or rotation-resistant rope.

The degree to which a wire rope generates torque or turn will be influenced by the construction of the rope. Usually 6 or 8 strand rope constructions are selected unless load rotation on a single part system, or “cabling” on a multi-part reeving system, are likely to cause operational problems.

The diagram above (Fig 6) serves to illustrate the differences in rotational properties between the four basic types of stranded rope. The 6 and 8 strand ropes hold the load in a single layer and will rotate. To prevent loads spinning in single fall systems rotation-resistant ropes or low-rotation ropes that resist the tendency to rotate are specified for lifting applications. Such ropes are often referred to as multi-strand ropes with two or more layers as illustrated in Fig 7.

“Torque” generated if both ends are fixed

“Turn” exhibited if one end is unrestrained

Abrasive wear can take place between rope and sheave and between rope and drum but the greatest cause of abrasion is often through “interference” at the drum, as shown in Fig 2. If abrasion is determined to be a major factor in rope deterioration then a wire rope with relatively large outer wires.

Non-Dyform wire rope on adjacent drum laps can cause point contact and accelerated wear. Selection of a Dyform product will reduce abrasion through improved contact of the smooth surfaces, creating better contact and longer rope life.

Dyform ropes also reduce rope to sheave abrasion through increased contact of the periphery of the rope with the sheave as shown in Fig 3.

Fig 1

Fig 2 Fig 3 Single Layer 2 Layer 3 Layer

Fig 4

Fig 5

Fig 6

Fig 7

Dyform® 50DB

Dyform® 34LR PI

Dyform® 18

6 x 36 Class

Endurance

BENEFITS• High breaking force• Rotation resistant• Reduced sheave wear• Long service life• Reduced downtime

BENEFITS

• High breaking force

• Excellent service life

• Reduced downtime

• Flexible eight strand construction

• High temperature lubricant available

• Consistent performance

• Reduced lifetime costs

• Plastic encapsulated core

• Reduced stretch

• Recommended for multi-layer spooling

BENEFITS• High breaking force

• Excellent rotation resistant characteristics

• Excellent spooling

• Good wear characteristics

• Crush resistant

BENEFITS• Plastic impregated• Low rotation• Recommended for high lifting operations• Higher strength• Reduced rope sheave wear

• Accurate diameter, recommended for multi-layer spooling

• Suitable for single part and multi-part reeving• Long service life• Resistance to bend fatigue• Reduced elongation

Dyform® 8 PIEnduranceEndurance

Endurance

22.0* 7/8* 2.28 1.53 427 48.0 43.5 25.8 169 258

1* 3.04 2.04 569 64.0 58.0 34.3 261 345

28.0 3.69 2.48 723 81.3 73.7 41.7 349 419

1 1/4* 4.75 3.19 944 106 96.3 53.6 509 538

19.0* 3/4 1.81 1.22 350 39.3 35.6 20.9 22.0 210

20.0* 2.00 1.34 388 43.6 39.5 23.2 25.6 232

22.0 2.42 1.63 469 52.7 47.8 28.1 34.1 281

7/8* 2.42 1.63 469 52.7 47.8 28.6 35.1 287

24.0* 2.88 1.94 559 62.8 57 33.4 44.2 335

1.0* 3.23 2.17 626 70.3 63.8 37.4 52.4 375

26.0 3.38 2.27 656 73.7 66.8 39.2 56.2 393

28.0 3.92 2.63 760 85.4 77.4 45.5 70.3 456

1 1/8* 4.09 2.75 792 89 80.7 47.4 74.7 474

30.0* 4.50 3.02 873 98.1 89 52.2 86.4 523

32.0** 1 1/4* 5.12 3.44 993 111 101 59.4 105 595

34.0* 5.78 3.88 1060.0 119 108 67.0 126 672

36.0* 6.48 4.35 75.2 149 753

10.0 0.472 0.317 89.4 10.0 9.12 5.58 5.36 57.35/8* 1.26 0.847 216 24.3 22.0 13.4 30.1 141

3/4* 1.81 1.22 306 34.4 31.2 19.3 52.1 202

7/8 2.47 1.66 416 46.8 42.4 26.2 82.8 276

This table is for guidance purposes only with no guarentee or warrant (expressed or implied) as to its accuracy. The products described may be subject to change without notice, and should not be relied on without further advise from Bridon.** Available in Right Lang's Lay and in Lef Lang's Lay* Stocked in the Gulf of Mexico

This table is for guidance purposes only with no guarentee or warrant (expressed or implied) as to its accuracy. The products described may be subject to change without notice, and should not be relied on without further advise from Bridon.* Stocked in the Gulf of Mexico

This table is for guidance purposes only with no guarentee or warrant (expressed or implied) as to its accuracy. The products described may be subject to change without notice, and should not be relied on without further advise from Bridon.* Stocked in the Gulf of Mexico

This table is for guidance purposes only with no guarentee or warrant (expressed or implied) as to its accuracy. The products described may be subject to change without notice, and should not be relied on without further advise from Bridon.* Stocked in the Gulf of Mexico