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WIRE ROPE HANDBOOK

COOKES

Wire Rope Manufacture at CookesFactory in Auckland.

The Only Manufacturer of Wire Rope inNew Zealand.

COOKES

CONTENTS

About Cookes ................................................ 4Cookes Product Range .................................. 6Wire Rope Design & Construction .............. 10 Wire Rope SelectionEngineering & General Purpose Ropes ....... 34Logging Ropes............................................. 38Fishing Ropes .............................................. 44Marine Ropes............................................... 58Crane Ropes................................................. 72Elevator Ropes............................................. 78Stay Strand & Clothes Line ......................... 82Services........................................................ 86Associated Products..................................... 90Branches ...................................................... 98

Ropes in this catalogue are manufactured inaccordance with:

BS 302 Parts 2, 3, 6, 7 & 8.BS EN 12385-1-4-5:2002

I.S.O. 2408:1985Minimum breaking loads (MBL) are quoted in this

catalogue in kilo Newtons.kN x 0.10197 = tonne.tonne x 9.80665 = kN.

COOKESNew Zealand’s Most Extensive

Industrial Support Service.

• The firm of William Cooke & Company wasfounded in 1862 at Tinsley in the UnitedKingdom. An office was opened in Aucklandin 1911 to handle the distribution of wire ropeand associated products in New Zealand.

• Cookes are part of a group of Companies that includes a number of the world’s leading lifting equipment manufacturers including Parsons Chain Co. (U.K.) andCrosby International (U.S.A.).

• Cookes operate New Zealand’s only wirerope manufacturing plant.

• Cookes operate websling and webbing loadrestraint manufacturing plants in both Auck-land and Christchurch.

• Cookes Engineering Workshop manufacturescutting edges for supply throughout NewZealand.

COOKES• All products manufactured by Cookes meetworldwide standards such as Lloyds Registerof Shipping, New Zealand Standards Asso-ciation, British Standards and ISO 9001Quality Assurance.

• Cookes head office and branches carryTELARC SAI Registered certification.• Cookes operate load testing facilities at mostbranches throughout New Zealand and on-sitetesting vehicles in both Auckland andChristchurch.

• In 1992 a manufacturing plant was installedto produce the Brifen road safety barriersystem for highways throughout New Zealandand export.

• In 1994 a 150 tonne Rotary Swaging Ma-chine was installed to produce swaged wirerope for the logging industry and later thefishing industry. In 2001 a second swager wasadded to handle the increased demand for thisproduct.

COOKES Product RangeWIRE ROPE: Conventional, Swaged, Dyform,Dyswaged, Blue Strand, N. Z. manufacture up to60 mm dia. Imported Casar and KoreanTESTING SERVICES: Proof loading of alllifting equipment (Telarc Registered). 100 tonnetest bed, non-destructive testing, telemetry loadcells up to 100 tonnes.BLOCKS: Electric/manual chain blocks, pulley,crane and logging blocks,stainless steel pulleys.ESCO EARTHMOVING EQUIPMENT: Bucketteeth and adaptors, Super V, ripper shanks and tips,grader shanks and tips, end bits, cutting edges andplow bolts to suit.GRADER BLADES: Cutting edges, end bits andplow bolts. Mouldboard liners.CRUSHER PARTS: Jaws, mantles and hammers.SCREENS: Both wire and polyurethane.PENGO: Auger equipment, trencher teeth.LUBRICANTS: Brilube wire rope dressing.SLINGS: Wire and fibre rope, chain and webslings.LOG RIGGING EQUIPMENT: Marlin spikes,cee hooks, chokers, ferrules, pulley blocks, loggrapples, rings, butt rigging.EYE BOLTS: Certified, all sizes available,threaded or blank. Stainless steel commercialeyebolts.

COOKESProduct RangeAGRICULTURAL EQUIPMENT: Tractoraccessories and 3-point linkage parts.HOISTS: Chain lever type, Supertil wire ropehoists, travelling trolleys, plate lifting clamps.HOOKS: Crane, eye and swivel hooks, marinecertified. Cee, choker, stainless steel, snap andchain grab hooks.CHAIN: Galvanised, all sizes, mooring chain, loadrestraint, hi tensile, lifting chain, grade 80 & grade100 chain, chain swivels, security chain andstainless steel chain.HYDRAULIC TOOLS: Enerpac hand andpowered pumps, cylinders. Extra high pressurehose. Full range of product available.TRANSMISSION: V-belts, timing belts,transmission, conveyor, feeder, attachment andagriculture chain. Saw chain and accessories.Sprockets and pulleys, automotive V-belts, chainbreakers, motorcycle chain. “Aqua” corrosionresistant chain.WEBBING AND CARGO EQUIPMENT:Manufacturers of webslings to NZS5227, trucktiedown restraints, recovery straps, mini tiedownrestraints, curtainside webbing and fittings, boatand motorcycle straps, roundslings.HOSE AND COUPLINGS: Complete rangehydraulic hose and couplings. Automotive andindustrial hose.

COOKES Product RangeHIGH TENSILE LIFTING CHAIN: Kuplex,Weissenfels and Hercalloy chain.Complete range of fittings to suit all applications.LOADBINDERS: Lever and ratchet type chaintwitches.MARINE PRODUCTS: Shackles, swivels, fibreropes, boat trailer winch ropes, thimbles,turnbuckles, rigging screws, boat trailer winches,stainless steel rigging hardware, stainless steelchain, mooring and anchor chain.FIBRE ROPES: Full range of natural andsynthetic fibre rope at wholesale prices.SHACKLES: Commercial or certified, galvanisedor self colour, bow or dee. Hi-load alloy. Stainlesssteel dee.HEIGHT SAFETY EQUIPMENT: Full range ofharnesses, lanyards, fall arrest devices andkarabiners.WEARALLOY: High impact and abrasionresistant steel. All sizes available.

ASK OUR STAFF FOR FURTHER DETAILS

COOKES

This catalogue is designed to provide a non-techni-cal guide to the selection of a suitable wire rope forvarious applications. Technical information is re-stricted to weights and breaking loads and a few for-mulae. Constructions and sizes shown here are thosecommonly available and used in New Zealand butthere are many others and enquiries for special ap-plications should be directed to your nearest Cookesbranch.Wire Rope is a machine of many working parts andlike most machines it must be made right, selectedright for the application and used correctly in thatapplication. Like many machines, there is a greatvariety of types of wire rope, each with different prop-erties to suit it’s intended use. The internal combus-tion engine used to power a racing car is quite differ-ent to the one powering a large truck although theyboth may produce the same horsepower. Like manymachines it is impossible to combine the advantagesof each type into one single machine. The high horse-power and low weight of a racing engine would begreat in a truck. The high fuel cost and short life wouldnot. The same with wire rope, the attributes that makeone construction eminently suitable for one applica-tion could well be a total disaster in another.

COOKESWIRE ROPE DESIGN & CONSTRUCTION

Wire ropes are composed of independent parts - wires,strands and cores - that interact with each other dur-ing service.

Wire rope engineers design those parts in differentsteel grades, finishes and a variety of constructionsto attain the best balance of strength, abrasion resis-tance, crush resistance, bending fatigue resistance andcorrosion resistance for each application.

To select the best wire rope for each application, onemust know the required performance characteristicsfor the job and enough about wire rope design to se-lect the optimum combination of wire rope proper-ties.

The following information is provided as a basicguide. Our expert in house staff and field service spe-cialists are available to provide more specific rec-ommendations.

COOKESThe three attributes of a wire rope to consider are:(1) Strength.(2) Flexibility.(3) Robustness.In all dynamic rope applications (as opposed to staticapplications such as guy wires etc.) the choice is in-variably a compromise.

Strength can be increased by increasing the diameterof the wire rope and/or increasing the tensile strengthof the individual wires and/or increasing the crosssectional steel content (by decreasing the air voidsbetween the wires) and/or using a steel core construc-tion.

Flexibility can be increased by using more wires of asmaller diameter and/or decreasing the tensilestrength of the individual wires and/or using a fibrecore.

Robustness, or resistance to physical damage, canbe increased by using fewer wires of a larger diam-eter and/or using a steel core and/or by increasingthe steel area exposed to sources of external dam-age. Coatings such as galvanizing or others can beapplied to protect against corrosion.

COOKES

In almost all cases improving one attribute dis-tracts from another. In addition the wire rope’s work-place is rarely ideal. Apart from the environment (dirt,dust, moisture and chemicals), the equipment towhich the rope is fitted is rarely ideal and another setof compromises must be decided on. For example allwire rope suffers from being bent and the smaller thebend radius the shorter the rope life. For a 26mmwire rope to escape bend fatigue the winch drum orblock sheaves over which it runs would need a mini-mum diameter of over 1.5 metres. This is clearlyimpractical in many applications, and unnecessary ifbend fatigue does not cause the ultimate demise ofthe rope.

Hardness of Wir e RopeTensile Brinell Rockwell C1770mpa 425/510 451570mpa 400/425 431420mpa 380/425 41

COOKES

Strand

TERMINOLOGYWire rope consists of a number of strands laid upusually over a central core. Each strand is madefrom a number of individual wires.

CORESAlmost all wire rope is laid up over a core, FibreCore (natural or synthetic), Independent Wire RopeCore or Wire Strand Core (FC, IWRC or WSC):

Fibre Core Wire StrandCore

IndependentWire Rope Core

COOKESSTRAND CONSTRUCTIONS.

Strands are designed with various combinations ofwires and wire sizes to produce the desired resistanceto fatigue and abrasion. Generally, a small numberof large wires will be more abrasion resistant andless fatigue resistant than a large number of smallwires.

SingleSize

The basic strand has wiresof the same size woundaround a centre.

Large outer wires with thesame number of small innerwires around a core wire.Provides excellent abrasionresistance but less fatigueresistance. When used withan IWRC, it offers excellentcrush resistance overdrums.

FillerWire

Small wires fill spacesbetween large wires toproduce crush resistanceand a good balance ofstrength, flexibility andresistance to abrasion

COOKES

Warrington

Outer layer of alter-nately large and smallwires provides goodflexibility and strengthbut low abrasion andcrush resistance.

SealeFillerWire Filler

WireSeale

WarringtonSeale

MultipleOperation

Many commonly usedwire ropes use combi-nations of these basicconstructions

One of the above stranddesigns may be coveredwith one or more layersof uniform sized wires.

COOKESLAY

Regular Lay

Lang Lay

Right Lay

The most commonlay in which thewires wind in onedirection and the

strands the opposite direction (right lay shown).Less likely to kink and untwist, easier to handle,more crush resistant than Lang lay.

Wires in strandsand strands of ropewind the samedirection (right lay

shown). Increased resistance to abrasion, greaterflexibility and fatigue resistance than regular lay,will kink and untwist.

Strands wound tothe right around thecore (regular layshown). The most

common construction.

COOKES

Left Lay

Alternate Lay

Strands wound tothe left around thecore (regular layshown). Used in a

few special situations - cable tool drilling line, forexample.

Alternate strands ofright regular andright Lang lay.Combines the best

features of regular and Lang lay for boom hoist orwinch lines.

WIRE ROPE SIZEThe size of a wire rope is the diameter of a

circle which will just enclose all the strands.

Wrong Right

COOKESFINISH

Bright finish is suitable for most applications. Gal-vanized finish is available for corrosive environments.Plastic jacketing is also available on some construc-tions.

WIRE GRADESThe most common steel wire grades are: 1420-1770N/mm², and 1860N/mm². Stainless steels and otherspecial grades are provided for special applications.Most wire ropes are made with round wires. Bothtriangular and shaped wires are also used for specialconstructions.Generally, the higher the strength of the wire, thelower it’s ductility will be.

ABRASION AND BENDING

Abrasion Resistance Fatigue ResistanceDECREASES

with smaller wires

ßßßßß

DECREASESwith fewer wires

ßßßßßÝÝÝÝÝ

INCREASESwith more wires

The “X-Chart”. Abrasion Resistance Vs BendingFatigue Resistance.

While there is a possibility, there is little likelihoodthat an application can be found for which there is aprecisely suitable wire rope.

ÝÝÝÝÝINCREASESwith larger wires

COOKESAs with all engineering design proplems, feasiblesolutions demand compromise to some degree. Attimes is becomes neccessary to settle for less thanoptimum resistance to abrasion in order to obtain themaximum flexibility: the latter being a more impor-tant requirement for a given job. A typical exampleof this kind of trade-off would be in selecting a highlyflexible rope on an overhead crane. Conversly, in ahaulage installation, a rope with greater resistance toabrasion would be chosen despite the fact that suchropes are markedly less flexible.Two compelling factors that govern most decisionsas to the selection of a wire rope are abrasion resis-tance and resistance to bending fatigue. Striking aproper balance with respect to these two importantcharacteristics demands judgement of a very highorder. A graphic presentation of just such compari-son of qualities between the most widely used ropeconstructions and others is given by means of an X-chart.Referring to this chart when selecting a rope, themidpoint (at the X) comes close to an even balancebetween abrasion resistance and resistance to bend-ing fatigue. Reading up or down along either leg ofthe X, the inverse relationship becomes more appar-ent as one quality increases and the other decreases.See next page.

COOKES

ÜÜÜÜÜRESIS

TANCE T

ABRASIO

NÞÞÞÞÞ G

REATEST

LEAST ÜÜÜÜÜRESISTANCE TO

BENDING FATIG

UEÞÞÞÞÞ

GREATESTN

6x21FW

Flattened Strand

6x26FW

6x31WS

6x36WS

6x49FWS

6x64SFWS

The “X Chart”

COOKES

EFFECT OF SHEAVE SIZEWire Ropes are Manufactured in a great variety ofconstructions to meet the varying demands of wirerope usage. Where abrasion is an important factor,the rope must be made of a coarse construction con-taining relatively large wires. In other cases, the greatamount of bending to which a rope is subjected ismore important. Here, a more flexible construction,containing many relatively small wires, is required.In either case, however, if the rope operates over in-adequate size sheaves, the severe bending stressesimposed will cause the wires to break from fatigue,even though actual wear is slight. The smaller thediameter of the sheave, the sooner these fatigue breakswill occur and the shorter rope life becomes.Another undesirable effect of small sheaves is accel-erated wear of both rope and sheave groove. The pres-sure per unit of rope on sheave for a given load isinversely proportional to the size of the sheave. Inother words the smaller the sheave the greater therope pressure per unit area on the groove. Using theproper diameter sheave for the size and constructionof rope can obviously prolong both sheave and ropelife.Sheave diameter can also influence rope strength.When a wire rope is bent around a sheave, there is aloss of effective strength.

COOKESThis is due to the inability of the individual strandsand wires to adjust themselves entirely to theirchanged position. Tests show that rope strength effi-ciency decreases to a marked degree as the sheavediameter is reduced with with respect to the diam-eter of the rope.Therefore, it is evident that a definite relationshipexists between rope service and sheave size. As aguide to rope users, wire rope manufacturers haveestablished standards for sheave sizes to be used withvarious rope constructions. To secure the most eco-nomical service, it is important that the suggestedsize of sheaves given on the following page be used.As a rope is run through a groove, both becomesmaller. A used groove can be too small for a newrope, thus accelerating rope wear. A compromisebetween rope life and machining frequency must bemade.Grooves should have an arc of contact with the wirerope between 135 and 150 degrees. They should betapered to permit the rope to enter and leave thegroove smoothly. Field inspection groove gauges aremade to the nominal diameter of the rope plus 1/2 ofthe allowable rope oversize tolerance. When the

gauge fits perfectly, the groove isat the minimum permissible con-tour

COOKES

SuggestedD/d* ratio

MinimumD/d* ratio

PROPER SHEAVE AND DRUM SIZES

Construction

19x7 or 18x7Rotation resistant

6x19 Seale

6x27 H Flattened strand

6x31V Flattened strand

6x21 Filler wire

6x25 Filler wire

6x31 Warrington Seale

8x19 Seale

8x25 Filler wire

6x42 Filler

*D = tread diameter of sheave.d = nominal diameter of rope.

COOKESDRUM WINDING

It is very important to have a rope wind evenlyand tightly on a smooth drum. Due to lay directionand tension, rope has a tendency to rotate or roll as itapproaches a winch drum. This characteristic is usedto advantage by establishing the winding directionand dead end location so the rope will rotate in thedirection of the preceding wrap. Tightly packed wrapson the all-important first layer will ensure properwinding for additional layers.

If the drum attachment and direction of wrapsare not correctly selected, the first layer of rope willnot wind evenly or tightly, causing the second layerto pinch down between the wraps of the first layer.The resultant uneven winding will become worse witheach succeeding layer and result in abnormal scuff-ing and abrasion. If there are sufficient layers the ropewill pile up and “fall over” on itself with disastrousresults.

The hand rule is a convenient way to checkthe correct lay for an installation. The extended thumbpoints to the flange to which the rope is terminatedwhile the extended forefinger represents the ropeleaving the drum. A palm up hand representsunderwind and palm down overwind. If the right handmeets the conditions, use right hand lay rope and viceversa.

COOKESRIGHT HAND - RIGHT LA Y ROPE

Overwind Underwind

Right hand, palm down Right hand, palm up

LEFT HAND - LEFT LA Y ROPE

Overwind Underwind

Left hand, palm down Left hand, palm upLeft lay is not always readily available so designequipment to accept right lay if possible.

COOKES

FLEET ANGLEExcessive fleet angles can cause serious

damage to wire rope, sheaves and grooved drums.Severe scuffing results when rope wears againstgroove walls, grinding them down causing the ropeto become bruised and crushed.

Fleet angles on equip-ment should preferablybe kept between 1° and1.5° and should notexceed 2° for smoothdrums or 4° for grooveddrums. To ensure therope crossing back andstarting the second layerproperly withoutassistance the fleetangle should not be lessthan 1°.The fleet angle is thatangle between thecentre line of the firstfixed sheave and thecentre line of the ropeleading to the drum.

FleetAngle

SheaveC/line

FleetAngle

RopeC/line

COOKES

CALCULA TION OF DRUM CAPACITIESCapacity in metres = (A+B) x A x C x N

The value of N is taken from the table below

Ropedia.610111314

N87.22631.41625.96318.58916.028

Ropedia.1619222628

N12.2718.7026.4914.6474.007

Ropedia.3235384044

N3.0682.5652.1761.9631.623

ALTERNATIVE METHODRope length (m) = (A + B) x A x C x p x 106

Where A, B & C are quoted in metres and d in mmd²

COOKESMULTIPLE PULLEY SYSTEMS

Under static conditions the tension in eachpart of a rope in a multi-reeved system will be thetotal load to be lifted divided by the number ofparts supporting the load. When the load is raised itis necessary to take into account forces required toovercome friction in the sheave bearings and theresistance to bending of the rope as it passes overthe sheave. These additional forces are cumulativeand vary with the type of bearing and the sheavetread:rope diameter ratio.

Sheave:ropedia ratioabout 15:1about 20:1> 25:1

PlainBearing

8%/sheave6%/sheave5%/sheave

No ofparts

12345678

Percent per Sheave3%

1.030W0.523W0.354W0.269W0.218W0.185W0.161W0.143W

4%1.040W0.530W0.360W0.276W0.225W0.191W0.167W0.149W

5%1.050W0.538W0.367W0.282W0.231W0.197W0.173W0.155W

6%1.060W0.545W0.374W0.289W0.237W0.203W0.179W0.161W

8%1.080W0.561W0.388W0.302W0.250W0.216W0.192W0.174W

Ball/RollerBearing

5%/sheave4%/sheave3%/sheave

COOKESSAFE WORKING LOADS

The safe working load (SWL) of a wire ropeor a sling made from it is calculated by dividingthe particular wire rope’s minimum breaking load(MBL) by the safety factor to be used. This safetyfactor depends on the application and may bedetermined by legislation or other codes of prac-tice. A common safety factor is 5:1 which meansthe SWL of the rope is 1/5th of it’s MBL. Wherethe load is evenly supported by more than onelength of rope the SWL can be increased as shown:

Load carriedon two parts

at 90°= SWL x 1.4

Load carriedequally on two parts

at 30º = SWL x 2at 60º = SWL x 1.8at 90º = SWL x 1.4at 120º = SWL x 1

Load carriedon two parts= SWL x .8

Load carriedon four parts

at 90°= SWL x 2.1

COOKESIncorrect installation or handling prior to in-

stallation can damage a wire rope and cause failurebefore it is even put to work. Care must be taken toavoid putting a kink in the rope and thus permanentlydamaging it. DO NOT lie the coil on it’s side or thereel on it’s flange and lift the wraps off the top! Thefollowing illustrations demonstrate correct methods:

COOKES

Ensure that wire rope always passes aroundwinch drums and sheaves in the same direction (al-ways clockwise or always anticlockwise) and ensurethat the rope is loaded to equipment in the same di-rection as supplied i.e. top of reel (or coil) to top ofwinch drum or bottom to bottom, never top to bot-tom or vice versa:

COOKES

Wir e RopeSelection

COOKES

Engineering &General Purpose Ropes

COOKES

Fibre Core IWRC

6 x 199/9/1

1770 N/mm²

6 x 3112/6&6/6/11770 N/mm²

6 x 3614/7&7/7/11770 N/mm²Galvanised

6 x 4116/8&8/8/11770 N/mm²Galvanised

Specifications facing page

Engineering & GeneralPurpose Ropes

COOKES

(mm)89101112131416181920222426283235363840444852545660

FC37.4047.3058.4070.7084.1098.70114.00150.00189.00211.00234.00283.00336.00395.00458.00598.00716.00757.00843.00935.001131.001346.001579.001703.001832.002103.00

IWRC40.3150.9962.9676.2090.71105.91123.56160.83203.98226.53252.03304.99362.85425.61494.26644.30771.78816.89910.061008122014521704173719762268

FC.231.292.361.437.520.610.708.9241.171.301.441.752.082.442.833.704.424.685.215.786.998.329.7610.5311.3213.00

MBL (kN*) Weight (kg/m)IWRC

.7801.021.291.441.591.932.292.693.124.084.885.165.756.377.719.1710.7611.6112.4814.33

* kN x 0.10197 = tonne

COOKES

Logging Ropes

COOKES

6 x 31 IWRC12/6&6/6/11770 N/mm²

Standard

6 x 19 IWRC9/9/1

1770 N/mm²Standard

6 x 26 IWRC10/5&5/5/11770 N/mm²

Dyform

Logging Ropes

COOKES

(mm)13141618192022242628323538

Std.106.00124.00161.00204.00227.00252.00305.00363.00426.00494..00645.00772.00910.00

Std..673.7801.021.291.441.591.932.292.693.124.084.885.75

MBL (kN*) Weight (kg/m)DiaDyform

120140185236258295350415481560732

Dyform.78.901.171.481.661.822.172.663.133.594.69

* kN x 0.10197 = tonne

COOKES

6 x 19 IWRC9/9/1

6 x 26 IWRC10/5&5/5/1

6 x 31 IWRC12/6&6/6/11770 N/mm²

Logging Ropes (Cont.)

Swaged

COOKES

MBL (kN*)Swaged

147237340437574659812

Weight (kg/m)Swaged

.841.21.52.12.93.35.2

* kN x 0.10197 = tonne

Dia(mm)

13161923262832

Dyswaged available on request

COOKES

Fishing Ropes

COOKES

3 x 19F12/6+6F/11420/1770

N/mm²Galvanised

3 x 2610/5&5/5/11420/1770

N/mm²Galvanised

3 x 3112/6&6/6/11420/1770

N/mm²Galvanised

Standard Dyform

Fishing Ropes

COOKES

Std.4.5834.3050.1659.2073.1583.0287.00115.52158.47184.42213.45216.00280.00330.30372.02461.90

Std..0233.24.30.36.44.52.62.71.951.201.301.481.782.042.412.85

MBL (kN*) Weight (kg/m)Dia

Dyform

117.12162.30196.35230.44250.00298.84356.94428.42485.05

Dyform

.7441.001.231.421.551.902.302.792.99

* kN x 0.10197 = tonne

(mm)2.508.009.0010.0011.0012.0013.0014.0016.0018.0019.0020.0022.0024.0026.0028.00

COOKES

4 x 3012/6+6/6/F

1420/1770 N/mm²Galvanised

Fibre Core

Fishing Ropes (Cont.)Swaged

COOKES

* kN x 0.10197 = tonne

Dia (mm)101214161819202224

MBL (kN*)73.00105.00132.00174.00224.00254.00276.00326.56356.00

Weight (kg/m).43.58.80

1.0781.4301.6951.7802.0122.433

COOKES

Fibre Core IWRC

6 x 157/7/1

6 x 178/8/1

6 x 199/9/1

6 x 2110/5+5f/1

6 x 2610/5&5/5/1

6 x 3112/6&6/6/11420/1770

N/mm²Galvanised Specifications facing page

Standard

Fishing Ropes (Cont.)

COOKES

(mm)89101112131416181920222426283032

Fibre33.1347.3154.0068.2082.7087.60102.00133.00179.00187.00207.00251.00298.00350.00406.00468.32567.97

Fibre0.230.290.360.440.520.610.710.921.171.301.441.752.082.442.832.973.44

IWRC39.3743.0056.8867.6781.1694.50110.00143.00181.00204.00224.00271.00363.00387.00484.07521.18591.80

IWRC.24.3230.410.480.570.670.781.021.271.391.591.932.292.693.123.514.06

* kN x 0.10197 = tonne

COOKES

Fibre Core IWRC

6 x 199/9/1

6 x 2610/5&5/5/1

6 x 3112/6&6/6/11420/1770

N/mm²Galvanised

Dyform

COOKES

(mm)10111213141618192022242628293032

Fibre57.8672.1282.8889.84122.00143.00193.27204.54231.55278.18328.99402.00442.45464.00515.50574.77

Fibre.36.449.518.621.703.9631.211.371.511.912.132.522.853.253.403.69

IWRC61.8878.6790.62108.92121.60168.27211.60220.00250.35301.30354.98413.00479.09

591.77623.66

IWRC.42.521.601.722.8271.121.401.541.732.092.472.933.32

3.984.31

* kN x 0.10197 = tonne

COOKES

Fibre Core IWRC

6 x 199/9/1

6 x 2610/5&5/5/1

6 x 3112/6&6/6/11420/1770

N/mm²Galvanised

Dy/Swaged

COOKES

(mm)1012131416181920222426283032

Fibre65.2092.94110.22128.33165.32222.30229.30266.03313.82364.12451.98497.72570.02671.27

Fibre.43.613.726.8481.091.451.501.742.082.402.983.563.784.53

IWRC69.9999.84119.08137.15184.40246.51253.65310.74336.95391.73483.30539.10616.10725.03

IWRC.49.694.831.9981.251.641.731.972.362.723.363.84.35.13

* kN x 0.10197 = tonne

COOKES

Fishing Ropes (Cont.)Combination Ropes

6 x Decitex/9/f6 x Decitex/15/9/f

Polyprop CoreIWRC

Galvanised

COOKES

MBL (kN*) Weight (kg/m)

* kN x 0.10197 = tonne

Diamm12141618202224262860

35.0040.0049.0055.2568.7178.72101.5117.0143.0610.0

50.0053.5059.5469.09101.0115.0161.0176.0213.0904.0

.8801.021.614.68

.9501.101.321.616.42

COOKES

Marine Ropes

COOKES

1 x 1912/6/1

Stainless 316

Marine Ropes

COOKES

MBL (kN*)1.83.35.27.413.120.629.740.452.866.882.4101.0118.6

* kN x 0.10197 = tonne

Dia. (mm)1.52.02.53.04.05.06.07.08.09.010.011.012.0

Weight (kg/m).011.020.031.044.079.124.178.243.317.401.495.599.713

COOKES

Marine Ropes (Cont.)

7 x 76/1

7 x 1912/6/1

or9/9/1

Stainless 316

COOKES

7 x 71.302.373.715.347.609.4614.821.429.138.059.385.4

* kN x 0.10197 = tonne

Dia(mm)1.52.02.53.03.54.05.06.07.08.010.012.013.014.0

7 x 19

2.23.45.07.08.913.920.027.335.655.680.084.4109.0

7 x 19

.018.026..038.050.068.093.134.182.238.372.535.579.728

7 x 7.0096.0170.027.037.049.065.094.136.185.242.378.545

COOKES

6 x 1912/6/1

6 x 19(9/9/1)

1420/1770N/mm²

Galvanised

Fibre Core

NoteThe above ropes can be manufactured

with a P.V.C. coveringup to 32:00mm outside dia.

COOKES

Dia(mm)

891011121314161819202224262832

* kN x 0.10197 = tonne

Fibre33.1341.9153.8965.8677.4387.42101.79132.72167.65186.61206.57250.47297.38349.27405.16544.35

IWRC39.3743.0056.8867.6780.6194.63109.83143.18192.77202.00224.57269.44333.43377.21484.00606.75

IWRC0.240.320.410.480.570.670.781.021.271.391.591.932.292.693.124.06

Fibre0.230.290.360.440.520.610.710.921.171.301.441.752.082.442.833.44

COOKES

NoteThe above ropes can be manufactured with

a P.V.C. coveringup to 32:00mm outside dia.

6 x 76/1

7 x 76/1

1770 N/mm²Galvanised

Fibre Core WSC

COOKES

* kN x 0.10197 = tonne

MBL (kN*) Weight (kg/m)Diamm2.02.53.04.05.06.07.08.09.010.011.012.013.014.016.018.019.020.022.024.026.028.0

6 x 7Fibre2.353.665.299.4014.7021.2028.8037.6047.6058.8071.1084.6099.30115.00150.00190.00212.00236.00284.00338.00397.00461.00

7 x 7WSC2.544.285.7210.2015.9022.9031.1040.7051.5063.5076.9091.50107.00125.00163.00206.00229.00254.00308.00366.00430.00498.00

6 x 7Fibre.0138.0196.0311.0554.0865.125.170.221.280.346.419.498.585.678.8861.121.251.381.671.992.342.71

7 x 7WSC.0152.0236.0343.0610.0953.137.187.244.309.381.461.549.644.747.9751.231.381.521.842.192.582.99

COOKES

Marine Ropes (Cont.)Small Cords

6 x 19&

7 x 19

9/9/1 &

12/6/1

1770 N/mm²Galvanised

6 x 19Fibre

7 x 19 or 6 x 19 WSC

COOKES

* kN x 0.10197 = tonne

MBL (kN*) Weight (kg/m)Diamm3.03.54.04.55.05.56.06.57.07.5

Fibre4.896.648.6910.9813.6016.4019.6022.9528.6030.50

WSC5.297.859.4012.9514.7019.4221.2027.0730.9036.00

Fibre.0311.0378.0554.0612.0865.0913.125.130.177.185

WSC.0343.0465.0610.0762.0953.114.137.154.195.219

COOKES

Fibre Core6 x 1212/f

1420 N/mm²

6 x 2415/9/f

6 x 2412/12/f

1420/1770N/mm²

Galvanised

Marine & Lashing Ropes.

NoteThe above ropes can be manufactured with a braid

cover.

COOKES

* kN x 0.10197 = tonne

12/12/f15/9/f28.1035.6044.0053.2063.3074.3086.20113.00142.00159.00176.00213.00253.00297.00345.00396.00450.00

12/f.127.160.194.254.300.346.400.643.670.745.820.9741.1451.3801.5901.8002.120

12/f19.0024.0029.7035.9042.7050.1158.2076.0096.10107.30118.66143.18170.64200.00232.42266.74304.00

Dia(mm)

89101112131416181920222426283032

12/12/f15/9/f.200.253.314.380.457.531.616.8031.0281.1321.2551.5201.8052.1222.4582.5213.213

COOKES

Crane Ropes

COOKES

18 x 76/1

1770 N/mm²

Dyform 1818 x 199/9/1

1960 N/mm²

Crane Ropes

COOKES

Dia(mm)5.06.58.09.010111213141618192022242628

* kN x 0.10197 = tonne

Dyform 18

124.00135.33193.00213.00226.00285.00353.00413.00475.00

18 x 714.0223.7337.1246.9158.1070.0683.6097.90113.77148.69187.61209.57232.00280.42334.00391.18441.00

Dyform 18

0.830.851.181.491.661.852.282.683.08

18 x 70.100.160.250.32.3900.47.5620.660.761.001.261.411.561.892.252.642.96

COOKES

Casar 40 x 76/1

1960 N/mm²

Crane Ropes (Cont.)

EUROLIFT

COOKESDia (mm)

1011121314151617181920212223242526272829303234363840

* kN x 0.10197 = tonne

Weight (kg/m)0.490.5930.7050.8210.9491.0911.2571.4061.6011.7681.9562.1422.3732.6092.8133.0763.2853.5303.8464.0624.3475.0115.6416.3067.0817.831

MBL (kN*)89.6108.8130.8152.7179.1204.0230.6257.9293.9329.0362.2396.1441.4471.8524.3567.9614.9654.2712.9754.6817.4930.01045.01185.01319.01462.0

COOKES

Elevator Ropes

COOKES

8 x 199/9/1

1370/1770 N/mm²

NaturalFibre Core

Elevator Ropes

COOKES

Dia (mm)9.5111316

MBL (kN)39.7153.2074.30113.00

Weight (kg/m).310.420.586.888

* kN x 0.10197 = tonne

COOKES

Horticultural High Tensile Galvanised Strand

Prefabricated loop. No tools required ÞÞÞÞÞ

COOKES

Stay Strand& Clothes Line

COOKES

1 x 7Galvanised

Stay Strand& Clothes Line

COOKES

+ Approximate Diameter* kN x 0.10197 = tonne

Wires/Dia

(mm)5/1.257/1.67/2.07/2.57/3.15

7/1.67/2.07/2.57/3.157/4.0

StrandDia +(mm)3.554.86.07.59.5

4.86.07.59.512.0

(kN*)_

14.0227.4642.1758.84

9.8515.4023.5338.2061.70

TensileGrade

3861080

1200/13001200/13001200/1300

700/800700/800700/800700/800700/800

EquivWire

Gauge18G16G14G12G10G

16G14G12G10G8G

COOKES

Services

1,000 tonne talurit press at Aucklandrigging loft.

COOKES

Hand Splice

Mechanical SpliceMechanical Splice

COOKES

Hand Splice with Thimble

Mechanical Splice with Thimble

COOKES

Test bed for proof loading and certificationof all types of lifting equipment. On siteservice includes installation, maintenanceand non-destructive testing.

COOKES

Turnbuckles &Rigging Screws

ShacklesRope GripsThimblesTwitches/Load Binders

Associated ProductsLubricating

& protective coatings, each specially fomulated for

particular wire rope applications

COOKES

ChainBlocks

&LeverHoists

COOKES

WireRopeHoists

WireRopeSafetyFence

COOKES

WebSlings

LoadRestraints& Web-bingHardware

COOKES

Synthetic& NaturalFibreRope

HeightSafety &FallArrestEquip-ment

COOKES

Branches

Whangarei

Auckland

Tauranga

Rotorua

New PlymouthNapier

WellingtonNelson

AshburtonTimaru

Dunedin

Invercargill

Christchurch

COOKESNOTES

COOKES

Head Office & Factory6-10 Greenmount DrEast TamakiP O Box 14-422PanmureAUCKLANDPhone (09) 274-4299Fax (09) 274-7982Email:salesadmin@cookes.co.nz

WhangareiLower Port RoadP O Box 708Phone (09) 438-8964Fax (09) 438-9272Email:whgsales@cookes.co.nz

Tauranga1 Marsh StreetP O Box 14-204Phone (07) 578-0605Fax (07) 578-0604Email:tausales @cookes.co.nz

RotoruaMarguerita StreetP O Box 633Phone (07) 348-3043Fax (07) 346-3283Email:rotsales@cookes.co.nz

Napier182A Hyderabad RdP O Box 12-003AhuririPhone (06) 834-0690Fax (06) 834-0872napsales@cookes.co.nz New Plymouth75 Corbett RoadBell BlockPhone (06) 755-04513Fax (06) 755-0419Email:nplysales@cookes.co.nz

Palmerston NorthResident RepresentativePhone (027) 445-3902Fax/Tel: (06) 354-0644

BRANCHES

COOKES

Wellington2 Udy StreetP O Box 38-696, PetonePhone (04) 568-4384Fax (04) 568-4381wtnsales@cookes.co.nz

Nelson8 Akerston StreetP O Box 5030Phone (03) 548-0719Fax (03) 548-0105nelsales@cookes.co.nz

Christchurch124C Waterloo RoadP O Box 16289Hornby Phone (03) 349-30Fax (03) 349-300chcsales@cookes.co.nz

Ashburton120 Moore StreetP O Box 407Phone (03) 308-9778Fax (03) 308-3875ashsales@cookes.co.nz Timaru14 Bank StreetP O Box 918Phone (03) 684-7494Fax (03) 684-8476timsales@cookes.co.nz Dunedin2A Orari StreetP O Box 626Phone (03) 455-3966Fax (03) 455-3966dunsales@cookes.co.nz Invercargill137 Clyde StreetP O Box 118Phone (03) 218-4682Fax (03) 218-4187invsales@cookes.co.nz

BRANCHES

www.cookes.co.nz

WIRE ROPE HANDBOOK

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