Synthetic Slings 87 and most th century. Since Since century. th centuries. However, slings fabricated fabricated slings However, centuries. th Pride. Integrity. Quality. Integrity. Pride. © 2015 Yarbrough Cable Service, Cable LLC Yarbrough © 2015 from synthetic fibers steadily gained popularity fibers steadily synthetic from half of the 20 the later through the turn of the century, many industries and many the turn of the century, construction as aircraft and applications—such etc.— generation, power aerospace, maintenance, high- the use of lightweight, to entirely moved have latest with the fabricated slings, synthetic strength fibers. of synthetic generation their origins Modern lifting synthetic slings have fiber true synthetic of the first in the development DuPont of DuPont. Carothers Wallace in 1935 by , a made-up this fiber nylon christened marketers and the of cotton suffix “on” the from name derived good” “sounded simply that “nyl” arbitrary letters together. Nylon is a thermoplastic polymer made of repeating is often and amide bonds, molecular units linked by It commercially the first as polyamide. was to referred In industry, the rigging polymer. synthetic successful for wide use as the fiber of choice has found nylon lifting from slings fabricated weight light inexpensive, webbing. nylon flat developed been fibers have other synthetic Numerous of these many and introduced, was nylon since or spun woven fibers—most notably polyesters—are of synthetic a wide range fabricate used to materials into types. rigging and processing polyester and with nylon Experience of aromatic manufacturing the development led to of the 20 Carbon steel was the dominant raw material used material raw dominant the was steel Carbon the 19 slings throughout in rigging Synthetic lifting made with slings slings are Synthetic are etc.—that rope, webbing, materials—yarns, or man-made fibers. synthetic from woven Background Synthetic Slings Synthetic 88

polyamide (aramid for short) fibers in the 1960s fibers are made from ultra high molecular and 70s. Aramids are fibers in which the chain weight polyethylene (UHMW), also known as molecules are highly oriented along the fiber high-modulus polyethylene (HMPE). UHMW axis so that the strength of the chemical bond compounds are characterized by extremely can be exploited. Aramid fibers made their long molecular chains that serve to transfer the first commercial appearance in the 1960s with load to the polymer backbone more effectively the introduction of Nomex® from DuPont and by strengthening intermolecular interactions. Technora® from Tejin Aramid. The fibers are extremely lightweight, having a

Synthetic Slings Synthetic specific gravity less than 1 (i.e. they float). They In 1971, Stephanie Kwolek of DuPont invented a are also highly resistant to abrasion, in some fiber with a very high tensile strength-to-weight forms being 15 times more resistant to abrasion ratio. Introduced by DuPont as Kevlar® in 1973, than carbon steel. this para-aramid fiber is 5 times stronger than steel on an equal weight basis. A similar fiber Lifting slings fabricated with polyester and ultra with roughly the same chemical structure was high strength synthetic fibers most often take developed by Akzo and introduced as Twaron® the form of endless round slings, where the in 1978. Patent disputes between DuPont and load carrying members of the sling are multiple Akzo kept Twaron off the market until 1986. loops of a single, continuous strand of yarn enclosed by a tubular, woven polyester cover. Synthetic fibers of exceptional tensile strength The yarns may be a single synthetic fiber such were commercialized in the late 1970s by as polyester or a blend of two or more synthetic DSM and Honeywell under the trade names fibers, each selected for a particular set of Dyneema® and Spectra®, respectively. These characteristics.

Nylon Grommet or Endless Type Length (measured pull to pull when flat)

Triangle and Choker Slings

Length

Memphis, TN • 800 . 395 . 5438 © 2015 Yarbrough Cable Service, LLC Little Rock, AR • 800 . 749 . 3690 Yarbrough Cable Service Synthetic Slings 89 3212 2933 . . 383 712 . . Pascagoula, MS • 228 Pascagoula, Muscle Shoals, AL • 256 Muscle Shoals, bearing surface of the opposite eye or fitting, as bearingsurface or fitting, eye opposite of the in the diagrams. shown Length Length (measured pull to pull when flat) (measured pull to pull when flat) Nylon Eye and Eye Half-Twist Nylon Plain Eye and Eye Type Nylon Plain Eye and Eye Pride. Integrity. Quality. Integrity. Pride. © 2015 Yarbrough Cable Service, Cable LLC Yarbrough © 2015 Nylon Web Sling Dimensions Sling Web Nylon illustrated sling types are web nylon Standard specify to required dimensions are Three below. slings: these nylon width. 1. Nylon webbing webbing. of nylon (plys) 2. Number of layers 3. Sling length. from sling is measured length of a nylon The the bearing surface the or fitting to of one eye The least expensive and most common most common and expensive least The flat from fabricated slings are synthetic slings are web nylon Flat webbing. nylon lengths one or more arranging by fabricated particular of various widths in a of webbing to and sewing the webbing configuration, Over the years, thread. itself with heavy nylon slings web of nylon configurations standard sling web a nylon Ordering evolved. have and type the dimensions that of sling requires be specified. Flat Nylon Webbing Slings Webbing Nylon Flat 90

Nylon Sling Types from flat nylon webbing of various widths, In addition to sling dimensions, the desired in several standard configurations. Type configuration of the sling eyes must be numbers have been given to the end or eye specified. Nylon lifting slings are fabricated configurations as follows:

Type 1 – Triangle-Choker Type 2 – Triangle-Triangle Synthetic Slings Synthetic

Triangle choker nylon web slings are Triangle nylon web slings are fitted fitted with steel or aluminum alloy with steel or aluminum alloy triangles triangles sewn into the eyes at each sewn into the eyes at each end of end of the sling. These triangles protect the sling. The triangles provide wear the nylon in the sling eyes from wear protection for the sling eyes, and and from barbs on hooks and shackles. protection from cutting by barbs The sling has a larger triangle with a slot on hooks and shackles. Triangle cut in it on one end. This permits the nylon slings can be used in vertical smaller triangle on the opposite end to and vertical basket hitches only. For pass through to create a choker hitch. choker hitches, use a Type 1 triangle choker sling. For vertical or vertical basket hitches, use Type 1 or Type 2 Type 3 – Flat Eyes triangle slings. Type 4 – Twisted Eyes

Type 3 Type 5 – Endless

Type 4

Type 3 slings with flat eyes are the most Endless nylon web slings are the most popular of all nylon webbing slings. The versatile of all nylon web slings. This flat eyes lay flat just like the body of sling can be used in a choker hitch, the sling. vertical hitch, and basket hitch. Unlike Type 4 slings have twisted eyes which an eye/eye sling, the attachment point lay 90°, or perpendicular, to the sling on the sling can be continuously varied body. Twisted eyes work especially well to minimize wear, thus extending the in choker hitches. Twisted eyes also life of the sling. provide a double wear surface as the eyes can be turned inside out to use the opposite side of the eye webbing. Both types of slings work well in a wide range of applications, and can be used in a choker hitch, vertical hitch, or basket hitch configuration.

Memphis, TN • 800 . 395 . 5438 © 2015 Yarbrough Cable Service, LLC Little Rock, AR • 800 . 749 . 3690 Yarbrough Cable Service Synthetic Slings 91 3212 2933 . . 383 712 . . x ## x 10 10 ft. long Length in feet Length Pascagoula, MS • 228 Pascagoula, # 1 Muscle Shoals, AL • 256 Muscle Shoals, webbing 1 in. wide Webbing width Webbing –9 – # No. 9 nylon † 9 nylon No. Webbing type Webbing 1 # Single-ply Number of plys Type 3, flat eyes each end each eyes 3, flat Type each end 4, twistedeyes Type 5, endless sling Type 1, triangle-choker triangle) with steel TCS Type (TCA sling with aluminum triangle; 2, triangle-triangleTTS triangle) sling (TTAType with steel with aluminum triangle; XX fittings (if any) Flat eyes each end eyes Flat Ends, eyes, and eye and eye eyes, Ends, EE ET EN TCS or TCA TTS or TTA EF or EE Pride. Integrity. Quality. Integrity. Pride. © 2015 Yarbrough Cable Service, Cable LLC Yarbrough © 2015 † Number 9 nylon webbing is nylon webbing with a tensile strength of 9000 psi. strength with a tensile webbing is nylon webbing † Number 9 nylon a sling description these individual sling characteristics create line, a single into combined When made with single-ply, eyes, sling with flat 3 eye/eye Type describes a This EE1-91 x 10. reads that long. 10 feet 1 inch wide by number 9 webbing, Example: Nylon Web Sling Nomenclature Sling Web Nylon of the number or end nomenclature, sling characteristics—sling eye web various nylon The typically type width, and the finished length—are and length, webbing sling layers, webbing in a single-lineencoded description as follows: Nylon Web Sling Types – Nomenclature for Eye or End Descriptions or End Eye for – Nomenclature Types Sling Web Nylon 92

Nylon Web Slings – Size of Standard Eyes Nylon Sling Size Number of Webbing Sling Eye Length Sling Eye Width (sling width in Plies (layers of (inches) (inches) inches) webbing)

1 in. 1 9 in. 1 in.

1 in. 2 9 in. 1 in.

1 in. 4 12 in. 1 in. Synthetic Slings Synthetic 2 in. 1 9 in. 2 in.

2 in. 2 9 in. 2 in.

2 in. 4 12 in. 2 in.

3 in. 1 12 in. 1.5 in.

3 in. 2 12 in. 1.5 in.

3 in. 4 15 in. 1.5 in.

4 in. 1 12 in. 2 in.

4 in. 2 12 in. 2 in.

4 in. 4 15 in. 2 in.

6 in. 1 12 in. 2 in.

6 in. 2 15 in. 2 in.

6 in. 4 18 in. 3 in.

Memphis, TN • 800 . 395 . 5438 © 2015 Yarbrough Cable Service, LLC Little Rock, AR • 800 . 749 . 3690 Yarbrough Cable Service Synthetic Slings 93 3212 2933 . . 383 712 . . Pascagoula, MS • 228 Pascagoula, Muscle Shoals, AL • 256 Muscle Shoals, Pride. Integrity. Quality. Integrity. Pride. © 2015 Yarbrough Cable Service, Cable LLC Yarbrough © 2015 94

Sling Angle on each sling leg increases. Care should be When using two or more nylon slings taken to avoid the use of sling angles of less together by attaching the eye of each sling to than 30 degrees. one point on a load and the opposite eye of Yarbrough Cable Nylon Slings each sling to a common point such as a hook, Yarbrough Cable fabricates standard Type 1, the effect of sling angle must be considered when 2, 3, 4, and 5 nylon slings in 1-inch, 2-inch, calculating the capacity of the sling. The principal 3-inch, 4-inch, and 6-inch widths of any length of sling angle applies whether one sling is using only premium grade #9 nylon webbing. Synthetic Slings Synthetic used to pull at an angle, in a basket hitch, or for Yarbrough slings are available in 1-ply, 2-ply, multi-leg bridle slings. and 4-ply construction. Nylon slings wider than Sling angle is the angle measured between 6 inches as well as cargo type or return eye a horizontal plane and the sling body. This type slings are available as special order items. angle is very important because it can have Unless otherwise specified, all Yarbrough nylon a dramatic effect on the rated capacity of the slings wider than 2 inches have tapered eyes. sling. When the sling angle decreases, the load

Memphis, TN • 800 . 395 . 5438 © 2015 Yarbrough Cable Service, LLC Little Rock, AR • 800 . 749 . 3690 Yarbrough Cable Service Synthetic Slings 95 3212 2933 . . 30º 383 712 . . 30° 1,600 3,200 5,500 3,200 6,400 4,800 8,900 6,400 9,600 Sling 26,900 53,700 19,200 48,000 24,000 16,000 12,800 20,500 41,000 11,000 16,500 11,500 20,400 16,300 30,600 Bridle † 45° 2,300 4,500 7,800 4,500 9,000 6,800 9,000 Sling 45º 38,000 76,000 27,100 67,900 33,900 22,600 18,100 29,000 57,900 15,500 23,300 12,600 16,300 28,800 23,100 43,200 13,600 Bridle Pascagoula, MS • 228 Pascagoula, Muscle Shoals, AL • 256 Muscle Shoals, 60° 60º 2,800 5,500 9,500 5,500 8,300 Sling 46,500 93,000 33,200 83,100 41,600 27,700 22,200 35,500 70,900 11,100 19,000 28,500 15,400 11,100 20,000 35,300 28,300 53,000 16,600 Bridle Type 4 Type

3,200 6,400 6,400 9,600 53,700 38,400 96,000 48,000 32,000 25,600 41,000 81,900 11,000 12,800 22,000 32,900 17,800 12,800 23,000 40,800 32,600 61,200 19,200 Basket 107,400 Vertical Yarbrough Standard Slings Standard Yarbrough Yarbrough Special Order Slings Special Order Yarbrough 1,300 2,600 4,400 2,600 5,100 8,800 3,800 7,100 9,200 5,100 7,700 43,000 21,500 15,400 38,400 19,200 12,800 10,200 16,400 32,800 13,200 16,300 13,100 24,500 Choker 1,600 3,200 5,500 3,200 6,400 4,800 8,900 6,400 9,600 For new slings or slings in new, unused condition. new slings or slings in new, For 53,700 26,900 19,200 48,000 24,000 16,000 12,800 20,500 41,000 11,000 16,500 11,500 20,400 16,300 30,600 Vertical | 4 2 1 4 2 1 1 2 4 1 2 4 1 2 4 1 2 4 1 2 4 1 2 4 Ply (layers)

8 8 8 1 1 1 2 2 2 3 3 3 4 4 4 6 6 6 12 12 12 10 10 10 Width (inches) Type 3 Type Pride. Integrity. Quality. Integrity. Pride. © 2015 Yarbrough Cable Service, Cable LLC Yarbrough © 2015 Slings Order Standard/Special Yarbrough factor 3 & 4 Nylon 5:1 design – pounds; Slings Type of Capacity Approximate † All 9800 lb. webbing webbing 9800 lb. † All 96

Yarbrough Standard/Special Order Slings Approximate Capacity of Type 1 & 2 Nylon Slings – pounds; 5:1 design factor † Type 1 Type 2

Width Ply Vertical Choker Vertical 60° 45° 30° (inches) (layers) Basket Bridle Bridle Bridle Sling Sling Sling Synthetic Slings Synthetic

60º 45º 30º

Yarbrough Standard Slings 2 1 3,200 2,600 6,400 5,500 4,500 3,200 2 2 6,400 5,100 12,800 11,100 9,000 6,400 3 1 4,800 3,800 9,600 8,300 6,800 4,800 3 2 8,900 7,100 17,800 15,400 12,600 8,900 4 1 6,400 5,100 12,800 11,100 9,000 6,400 4 2 11,200 9,000 22,400 19,400 15,800 11,200 6 1 9,600 7,700 19,200 16,600 13,600 9,600 6 2 16,300 13,100 32,600 28,300 23,100 16,300 Yarbrough Special Order Slings 8 1 12,800 10,200 25,600 22,200 18,100 12,800 8 2 20,500 16,400 41,000 35,500 29,000 20,500 10 1 16,000 12,800 32,000 27,700 22,600 16,000 10 2 24,000 19,200 48,000 41,600 33,900 24,000 12 1 19,200 15,400 38,400 33,200 27,100 19,200 12 2 26,900 21,500 53,700 46,500 38,000 26,900 † All 9800 lb. webbing | For new slings or slings in new, unused condition.

Memphis, TN • 800 . 395 . 5438 © 2015 Yarbrough Cable Service, LLC Little Rock, AR • 800 . 749 . 3690 Yarbrough Cable Service Synthetic Slings 97 3212 2933 . .

30º 383 712 30° . . 6,400 9,600 6,400 3,200 Sling Bridle 61,200 53,700 12,800 17,800 17,800 32,900 12,800 23,000 40,800 19,200 32,600 81,900 32,000 48,000 96,000 38,400 11,000 25,600 41,000 107,400 †

45° 9,000 9,000 4,500 Sling 45º Bridle 86,500 76,000 18,100 25,100 13,600 25,100 46,600 18,100 32,600 57,000 27,100 46,200 45,200 67,900 54,300 15,500 36,200 57,900 115800 135,700 151,900 Pascagoula, MS • 228 Pascagoula, Muscle Shoals, AL • 256 Muscle Shoals,

60° 60º 5,500 Sling Bridle Bridle 93,000 22,200 30,800 16,600 30,800 57,700 22,200 39,900 70,600 33,200 56,500 55,400 83,100 66,500 19,000 11,100 44,300 70,900 11,100 105,900 166,200 186,100 141,900

6,400 25,600 35,500 19,200 35,500 65,900 25,600 46,100 81,500 38,400 65,300 64,000 96,000 76,800 22,000 12,800 51,200 81,900 12,800 Basket 122,300 191,900 107,400 214,900 136,800 Vertical Yarbrough Standard Slings Standard Yarbrough Yarbrough Special Order Slings Special Order Yarbrough 7,700 8,800 5,100 2,600 5,100 12,200 14,200 14,200 26,300 10,200 18,400 11,600 15,400 26,100 48,900 25,600 38,400 76,800 30,700 43,000 86,000 20,500 32,800 65,500 Choker For new slings or slings in new, unused condition. new slings or slings in new, For 9,600 6,400 3,200 6,400 12,800 17,800 17,800 32,900 12,800 23,000 40,800 19,200 32,600 61,200 32,000 48,000 96,000 38,400 53,700 11,000 25,600 41,000 81,900 107,400 Vertical |

4 2 4 1 2 4 1 2 4 1 2 4 1 2 4 1 2 4 1 2 4 1 1 2 Ply (layers)

2 2 3 3 3 4 4 4 6 6 6 1 2 8 8 8 1 1 12 10 10 10 12 12 Width (inches) Type 5 Type Pride. Integrity. Quality. Integrity. Pride. © 2015 Yarbrough Cable Service, Cable LLC Yarbrough © 2015 † All 9800 lb. webbing webbing 9800 lb. † All Yarbrough Standard/Special Order Slings Slings Order Standard/Special Yarbrough factor 5 Nylon5:1 design – pounds; Slings Type of Capacity Approximate 98

Polyester Round Slings sling. As a result, round slings are ideal for use Polyester round slings differ from nylon webbing in a choker hitch because the round body of the slings in several ways. The slings themselves take sling prevents the sling from locking up on the the form of an endless loop. The outer cover of load. Since round slings are endless, attachment the loop is a highly flexible, tubular jacket of points can be constantly changed, thereby woven polyester. Contained within the jacket extending the sling’s useful life. are multiple loops of a single strand of polyester In addition to the traditional size and capacity yarn, with more loops used to deliver greater tag on the sling, the covers of round slings Synthetic Slings Synthetic sling capacity. The all-polyester construction are color coded to indicate the capacity of eliminates moisture absorption, rot, and mildew, the sling. There is general but not complete providing a longer service life. The sling jacket standardization on cover colors to indicate sling protects the load bearing yarns and fibers capacity, so always check the tag to confirm the from the effects of abrasion as well as from capacity of any round sling. environmental conditions such as ultra violet radiation, dirt, debris, chemicals, sparks, etc. Measuring Polyester Round Slings The polyester yarns in these slings stretch only The length of a round lifting sling is determined about 3% when loaded so the slings have less by the distance from end to end, when the elongation than nylon slings of equal capacity sling is laid out flat. Do not measure the (nylon slings will stretch about 6% when circumference or the distance around the sling, loaded). Round slings are highly flexible and as this will give you a sling twice the length you will hug a load much better than a flat nylon intended.

Overall Length

* Measure end-to-end, not circumference

Memphis, TN • 800 . 395 . 5438 © 2015 Yarbrough Cable Service, LLC Little Rock, AR • 800 . 749 . 3690 Yarbrough Cable Service Synthetic Slings 99 † 3212 2933 . . 383 712 . . 9,000 6,000 64,000 52,000 44,000 34,000 28,000 24,000 18,000 12,000 Basket 120,000 100,000 Vertical Vertical 9,600 7,200 4,800 3,600 2,400 48,000 40,000 25,600 20,800 17,600 13,600 11,200 Choker Pascagoula, MS • 228 Pascagoula, Muscle Shoals, AL • 256 Muscle Shoals, 9,000 6,000 4,500 3,000 60,000 50,000 32,000 26,000 22,000 17,000 14,000 12,000 Vertical SP6000 SP5000 SP3200 SP2600 SP2200 SP1700 SP1400 SP1200 SP900 Catalog Catalog SP600 SP450 SP300 Number † For new slings or slings in new, unused condition. unused new slings or slings in new, † For Approximate Capacity of Polyester of Polyester Capacity Approximate factor 5:1 design – pounds; Round Slings Pride. Integrity. Quality. Integrity. Pride. © 2015 Yarbrough Cable Service, Cable LLC Yarbrough © 2015 Yarbrough Cable Polyester Polyester Cable Yarbrough Round Slings round polyester fabricates Cable Yarbrough verticalslings in 3,000 lbs. capacities from in 45 feet, up to and lengths 60,000 lbs. to sling round Yarbrough The 1 foot. of increments capacity are numbers and color codes stock a ordering When table. in the following shown number specify the stock sling, round polyester SP600 x 20 ft., example: or and the length. For SP2600 x 18 ft., etc. 100

Slingmax® High Performance Slings overload can be readily detected. If the sling is Twin-Path® synthetic slings from Slingmax® mistakenly overloaded, the EWI is designed to Rigging Solutions are the world’s first, true disappear before the sling fails. This provides ergonomic slings. A bulked nylon outer cover the sling inspector with a go/no-go inspection surrounds a dual core of high-performance device rather than relying on a subjective visual K-Spec® yarns to provide unmatched strength, inspection. flexibility, and abrasion resistance. K-Spec Yarbrough Twin-Path slings are also equipped yarns are blended from Dyneema® HMPE and with a fiber optic inspection system. The Synthetic Slings Synthetic Vectran® liquid crystal polymer fibers. Twin-Path condition of the internal core yarn can be slings weigh approximately 90% less than steel quickly inspected by checking the continuity wire rope slings of comparable lifting capacity, of a fiber optic cable within the sling body. If and have 1% stretch at rated capacity. the sling is crushed, cut, or damaged by heat For safety and lift security, the dual core of or chemicals, these conditions will damage the Twin-Path slings provides two connections fiber optic cable and prevent light transmission between the hook and the load for redundant from one end of the fiber to the other. This protection. In addition, Twin-Path slings have provides the inspector with a reason to remove overload tell-tales: a high-visibility red inner the sling from service and send it in for repair or cover that is instantly visible if the outer cover is evaluation. Ambient light or a flashlight source cut, and a fiber optic inspection system. may be used to check fiber optic continuity.

Yarbrough Twin-Path slings are equipped with As an authorized Slingmax Dealer, Yarbrough the Check-Fast® Inspection System. The Check- Cable fabricates Twin-Path slings in a variety Fast tag and External Warning Indicator (EWI) of sizes and lengths. When ergonomics, safety, provide a pass/fail inspection of the internal and productivity are paramount, Twin-Path load bearing core yarn. Damage to the core slings are the worldwide choice for wire rope yarn from ultraviolet (UV) light degradation, replacement in heavy lifts. fiber-on-fiber abrasion, fatigue, and severe

Memphis, TN • 800 . 395 . 5438 © 2015 Yarbrough Cable Service, LLC Little Rock, AR • 800 . 749 . 3690 Yarbrough Cable Service Synthetic Slings 101

3212 2933 . . 383 712 . . 1.5 – 3 1.5 – 3 1.5 – 3 2.0 – 4 2.0 – 4 2.0 – 4 3.0 – 6 4.0 – 8 4.0 – 8 4.0 – 8 2.5 – 5 2.5 – 5 2.5 – 5 3.0 – 6 7.0 – 14 8.0 – 16 5.0 – 10 5.0 – 10 6.0 – 12 6.0 – 12 7.0 – 14 (inches) Nominal Nominal Body Width Body 14,140 21,210 28,280 35,350 42,420 56,560 70,700 84,840 98,840 707,000 848,000 141,400 176,750 212,100 247,450 282,800 353,500 388,850 424,200 565,600 120,190 45° Basket Pascagoula, MS • 228 Pascagoula, Muscle Shoals, AL • 256 Muscle Shoals, 17,320 25,980 34,640 43,300 51,960 69,280 86,600 866,000 173,200 216,500 259,800 303,100 346,400 433,000 476,300 519,600 692,800 103,920 121,240 147,220 1,039,000 60° Basket 90° 90° 20,000 30,000 40,000 50,000 60,000 80,000 Basket 100,000 200,000 250,000 300,000 350,000 400,000 500,000 550,000 600,000 800,000 120,000 140,000 170,000 1,000,000 1,200,000 8,000 12,000 16,000 20,000 24,000 32,000 40,000 80,000 48,000 56,000 68,000 Choker 480,000 100,000 120,000 140,000 160,000 200,000 220,000 240,000 320,000 400,000 15,000 10,000 20,000 25,000 30,000 40,000 50,000 60,000 70,000 85,000 600,000 125,000 150,000 175,000 200,000 250,000 275,000 300,000 400,000 500,000 100,000 Vertical Sling TPXC 1500 TPXC TPXC 1000 TPXC TPXC 2000 TPXC TPXC 2500 TPXC TPXC 3000 TPXC TPXC 4000 TPXC TPXC 5000 TPXC TPXC 6000 TPXC TPXC 7000 TPXC 8500 TPXC Twin-Path Twin-Path TPXC 60000 TPXC TPXC 12500 TPXC 15000 TPXC 17500 TPXC 20000 TPXC 25000 TPXC 27500 TPXC 30000 TPXC 40000 TPXC 50000 TPXC TPXC 10000 TPXC Pride. Integrity. Quality. Integrity. Pride. © 2015 Yarbrough Cable Service, Cable LLC Yarbrough © 2015 Slings Twin-Path Slingmax Yarbrough factor 5:1 design in pounds; Capacity † Approximate † For new slings or slings in new, unused condition. new slings or slings in new, † For 102

Use of Synthetic Slings to service only when approved by a designated Synthetic slings provide several key benefits over person. These are removal criteria established wire rope slings, the most notable of which are by ANSI B30.9: lighter weight and greater flexibility. Synthetic • Acid or caustic burns. slings are mostly impervious to the effects of moisture and are highly resistant to a wide range • Melting or charring of any part of the sling. of solvents, acids, and industrial chemicals. • Holes, tears, cuts, or snags.

Synthetic Slings Synthetic Removing Synthetic Slings • Broken or worn stitching in load-bearing splices. from Service • Excessive abrasive wear. Remove all synthetic slings from service if you see damage such as the following, and return • Knots in any part of the sling.

When using any synthetic sling, care must be exercised to avoid sling contact with sharp surfaces and edges that could cut the sling. One must also avoid using synthetic slings at high temperatures.

Nylon Web Slings Polyester Round Slings Chemicals and Solvents † Chemicals and Solvents † Alcohol OK Alcohol OK Aldehydes OK Aldehydes Avoid Weak alkalis OK Weak alkalis OK Dry cleaning solvent OK Dry cleaning solvent OK Ethers OK Ethers Avoid Most hydrocarbons OK Most hydrocarbons OK Halogenated hydrocarbons OK Halogenated hydrocarbons OK Ketones OK Ketones OK Crude oil OK Crude oil OK Lubricating oils OK Lubricating oils OK Soaps & surfactants OK Soaps & surfactants OK Detergents OK Detergents OK Seawater OK Seawater OK Acid Avoid Weak acid solutions OK Bleaching agents Avoid Strong alkalis at elevated temps Avoid Concentrated sulfuric acid Avoid Hot bleaching solutions Avoid Sunlight and Temperature Concentrated sulfuric acid Avoid Avoid prolonged exposure to sunlight. Sunlight and Temperature Avoid temperatures above 194° F (90° C) and Avoid prolonged exposure to sunlight. below -40° F (-40° C). Avoid temperatures above 194° F (90° C) and below -40° F (-40° C).

Memphis, TN • 800 . 395 . 5438 © 2015 Yarbrough Cable Service, LLC Little Rock, AR • 800 . 749 . 3690 Yarbrough Cable Service Synthetic Slings 103 3212 2933 . . 383 712 . . Pascagoula, MS • 228 Pascagoula, Muscle Shoals, AL • 256 Muscle Shoals, † This is not an exhaustive list. In general, nylon is more is more nylon In list. general, is not an exhaustive This † performs alkalis, to while polyester stable when exposed this, to exceptions are There acids. to when exposed better Yarbrough in the charts. noted Contact some of which are of exposure and guidelines regarding details for Cable and other chemicals, specific solvents, slings to synthetic conditions. environmental these contaminants to penetrate between between penetrate to contaminants these tight pulls bends, the webbing fibers anytime during and relaxes or stretches against loads, small in place, Once unloading. loading and particles of dirt the sling against grind grit and and useful life. their strength reducing fibers, out are they when properly slings synthetic Store become they when them clean and service of to easier are they clean, are slings When soiled. longer. last they and strong, remain they inspect, synthetic clean to used be may procedures Many For are. they soiled how on depending slings, or soap with cleaning grime, and dirt everyday deliver usually will water and detergent mild good results. OK OK OK OK OK OK OK OK OK OK OK OK OK 3% 5% 19% strength reduction strength strength reduction strength reduction strength Twin-Path Slings Twin-Path Chemicals and Solvents † and Solvents Chemicals Sunlight and Temperature and Sunlight warning indicator or fiber optic indicator fault. or fiber optic indicator warning indicator the strength of the sling. the strength distorted, or broken fittings. distorted, or broken Do not use above 180° F (82° C).Do not use above slings Twin-Path limit; temperature No lower temperatures. lower at actually stronger become Seawater Hypophosphite Hydraulic fluid Hydraulic Kerosene solution 10% Detergent Gasoline Toluene acid Glacial acetic acid 1M Hydrochloric 5M Sodium hydroxide (29%) hydroxide Ammonium Perchloroethylene Bleach solution (10%) Nitric acid volume) (50% by volume) (50% by Sulfuric acid (50% by volume) (50% by acid Phosphoric Pride. Integrity. Quality. Integrity. Pride. © 2015 Yarbrough Cable Service, Cable LLC Yarbrough © 2015 • Missing sling identification. illegible or early missing Check-Fast slings, Twin-Path • For Ordinary the dirt, reduce will and grime grit, slings, of synthetic and life strength overall the load slings where web especially nylon very easy for It’s exposed. bearing fibers are • Other as to causes doubt damage that visible Slings Synthetic Cleaning • Excessive pitting or corrosion, or cracked, or cracked, or corrosion, pitting • Excessive 104

Whatever cleaning method you use, always Nylon, polyester, and HMPE fibers have an hang washed slings in a dry, sheltered place. extremely low water absorption rate, making Always keep slings from prolonged contact them flexible, light, and easy to handle even with direct sunlight during drying and storage after prolonged soaking in water. All show because ultraviolet rays can degrade synthetic excellent resistance to mold, mildew, and fibers. Nylon or polyester slings that have been fungus, although dirt that accumulates on dyed any color but white will fade somewhat slings may support their growth, which is also due to washing, but this in no way affects the why regular cleaning is important.

Synthetic Slings Synthetic strength of the webbing.

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