Synthetic Lifting Slings - Wesco Industries Ltd.

INDUSTRIES LTD. 

www.wescovan.com 

PROCRAFT SYNTHETIC 

LIFTING SLINGS 

Head Office: Unit 1, 9663-199A Street Langley BC V1M 2X7 

Phone: 604 881 3000 Fax: 604 881 3010 

Email: info@wescovan.com 

Rigging Centre: 2437 Beta Avenue Burnaby BC V5C 5N1 

Phone: 604 292 1220 Fax: 604 292 1222 

Email: burnaby@wescovan.com

PROCRAFT 

WEB SLINGS 

INTRODUCTION 

Procraft synthetic webbing slings are generally manufactured from 

Nylon, but can also be manufactured from Polyester. The light weight 

of the material, combined with superior flexibility have made these 

slings popular with riggers over the years. Webbing slings will not 

scratch or deface loads and the webbing’s flexibility will form a secure 

grip around the load to be lifted. 

Slings manufactured from Nylon will stretch between 6% to 8% and 

should be used if alkalis are present, while Polyester slings will stretch 

approxiametly 3% and should be used where acids exist. 

Synthetic webbing used to manufacture slings have a chemically 

treated surface to increase abrasion resistance, seal out moisture, and 

prevent grit from attacking the webbing internally. The webbing is 

unaffected by moisture, mildew, rot and certain chemicals. 

SLING MANUFACTURE 

Procraft web slings are manufactured to strict quality standards, and 

our constant in house testing and quality analysis of all materials and 

fabrication procedures ensure users a superior product. Slings can be 

manufactured in either single or multiple plies, and may include 

accessories such as wear pads, sleeves and end fittings. Several 

types and configurations are available. The following system is used 

to identify different types at time of order: 

Sling Type (2 letters) 

EE - Eye each end 

EN - Endless 

TC - Triangle & Choker 

TT - Triangle each end 

ER - Reverse eye each 

end 

Indicates the 

number of plies in 

sling. (1,2,3 or 4) 

Webbing material 

capacity. 

Webbing width in 

inches (1 to 12). 

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE 

Industries Ltd. 

WARNING: NEVER EXCEED WORKING LOAD LIMITS PAGE 2

TYPE 1: Triangle & Choker (TC) hardware on each end manufactured 

from either steel or lightweight aluminum. Most effective for choker 

hitch, can also be used in vertical or basket hitches. 

TYPE 2: Triangle & Triangle (TT) hardware on each end manufactured 

from either steel or lightweight aluminum. For use in either basket or 

vertical hitches only. 

TYPE 3: Flat Eye & Eye (EE) sewn on each end. Choice of either 

straight (easy to remove from underneath loads) or tapered eyes. For 

use in vertical, choker or basket hitches. 

TYPE 4: Twisted Eye & Eye (EE) sewn on each end. Eyes are turned at 

a right angle to sling body and choice of either straight or tapered 

eyes. Forms effective choker hitches, also used in vertical or basket 

hitches. 

TYPE 5: Endless Grommet slings (EN) sewn together to form an 

endless loop. Versatile sling for all hitches. 

Other Fittings: Slings can be manufactured with other steel fittings including Connectors, 

Shackles, Hooks and Couplers. Also available wear pads and protection sliding sleeves. 

Please contact Wesco Industries for further information on these products. 



WARNING: NEVER EXCEED WORKING LOAD LIMITS 

PAGE 3

ENVIRONMENTAL 

CONSIDERATIONS 

All slings should be stored in a cool, dry, and dark place away from 

harmful ultra-violet rays (sunlight) and Arc Welders in operation. 

Continuous exposure to sunlight can affect the strength of synthetic 

webbing in varying degrees, ranging from total degradation to slight 

degradation. Nylon and Polyester slings shall not be used with 

temperatures in excess of 194 degree F (90 degrees C). 

Chemical active environments can be hazardous to the sling strength, 

Wesco Industries should be consulted before using slings in such 

environments. See chart below for a guide on chemical resistance of 

webbing: 

NYLON NO YES YES YES NO YES YES YES YES YES YES YES YES YES YES 

POLYESTER # YES NO ## YES YES NO YES YES YES YES YES YES YES YES 

#Disintegrated by concentrated sulfuric acid. 

## Degraded by strong alkalis at elevated temperatures. 

CARE, USE & INSPECTION 

Webbing slings should be inspected by the person(s) prior to any 

lifting operations. The inspector should seek to detect any surface 

damage to the sling and its components. Excessive surface chafe 

(wear), cross or longitudinal cuts in the webbing, cuts or chafe damage 

to the edges (caused by overloading), crystaliztion of the webbing 

(caused by exposure to excessive heat), local weakening or softening 

of the webbing material so that surface fibres can be plucked or rubbed 

off, corrosion and/or distortion of hardware - caused by acids or 

overload; will result in a serious loss of strength to the sling. A sling so 

affected should be taken out of service immediately. 

Never try to repair a damaged webbing sling. Wesco Industries can 

inspect and reuse your old webbing sling hardware safely and provide 

proof load certification if required. 




Once sling has been inspected, determine the weight of the load, type 

of load to be lifted and the sling angle that is to be used. Make sure that 

the sling will be protected from cuts by sharp edges, sharp corners and 

abrasive surfaces. 

NEVER EXCEED THE WORKING LOAD LIMIT OF THE SLING! 

SLING ANGLES 

When slings are used in a basket hitch and suspended from one hook 

sling angles will directly affect the rated capacity of any slings. The 

“sling to load angle” is the angle between the horizontal top of the load 

and the leg of the sling. As the “sling to load angle”decrease, so does 

the safe capacity of the sling. Refer to the charts below: 

Sling Angles 

in Degrees 

Factor 

Sling Angles 

in Degrees 

Factor 

15 0.259 55 0.819 

20 0.342 60 0.866 

25 0.423 65 0.906 

30 0.500 70 0.940 

35 0.574 75 0.966 

40 0.643 80 0.985 

45 0.707 85 0.996 

50 0.766 90 1.000 

Angles less than 45 degrees are not reccomended and those below 

30 degrees should be avoided whenever possible. 




PAGE 5

HITCH TYPES 

Vertical Hitch Choker Hitch Basket Hitch 

WORKING LOAD LIMIT CHARTS 

TYPE 1 

Triangle & 

Choker 

SINGLE PLY 

Width Vertical (lbs) Choker (lbs) Basket (lbs) 

2 3,200 2,400 6,400 

3 4,800 3,600 9,600 

4 6,400 4,800 12,800 

5 8,000 6,000 16,000 

6 9,600 7,200 19,200 

8 12,800 9,600 25,600 

10 16,000 12,000 32,000 

12 19,200 14,400 38,400 

DOUBLE PLY 

2 6,000 4,800 12,000 

3 8,800 7,040 17,600 

4 11,000 8,800 22,000 

5 13,700 10,960 27,400 

6 16,500 13,200 33,000 

8 20,000 15,000 40,000 

10 24,000 18,000 48,000 

12 28,800 21,600 57,600 




TYPE 2 

Triangle & 

Triangle 

SINGLE PLY 


2 3,200 N/A 6,400 

3 4,800 N/A 9,600 

4 6,400 N/A 12,800 

5 8,000 N/A 16,000 

6 9,600 N/A 19,200 

8 12,800 N/A 25,600 

10 16,000 N/A 32,000 

12 19,200 N/A 38,400 

DOUBLE PLY 

2 6,000 N/A 12,000 

3 8,800 N/A 17,600 

4 11,000 N/A 22,000 

5 13,700 N/A 27,400 

6 16,500 N/A 33,000 

8 20,000 N/A 40,000 

10 24,000 N/A 48,000 

12 28,800 N/A 57,600 

TYPE3&4 

Eye & Eye 

SINGLE PLY 


1 1,600 1,200 3,200 

2 3,200 2,400 6,400 

3 4,800 3,600 9,600 

4 6,400 4,800 12,800 

5 8,000 6,000 16,000 

6 9,600 7,200 19,200 

8 12,800 9,600 25,600 

10 16,000 12,000 32,000 

12 19,200 14,400 38,400 

DOUBLE PLY 

1 3,100 2,480 6,200 

2 6,000 4,800 12,000 

3 8,800 7,040 17,600 

4 11,000 8,800 22,000 

5 13,700 10,960 27,400 

6 16,500 13,200 33,000 

8 20,000 15,000 40,000 

10 24,000 18,000 48,000 

12 28,800 21,600 57,600 




PAGE 7

TYPE 5 

Endless 

SINGLE PLY 


1 3,200 2,400 6,400 

2 6,200 4,650 12,400 

3 9,400 7,050 18,800 

4 12,400 9,300 24,800 

5 15,600 11,700 31,200 

6 18,600 13,950 37,200 

8 21,000 15,750 42,000 

10 26,000 19,500 52,000 

12 31,000 23,250 62,000 

DOUBLE PLY 

1 6,200 4,650 12,400 

2 12,000 9,000 24,000 

3 17,600 13,200 35,200 

4 22,000 16,500 44,000 

5 27,400 20,550 54,800 

6 33,000 24,750 66,000 

8 34,000 25,500 68,000 

10 38,000 28,500 76,000 

12 43,750 32,800 87,500 

Every Procraft Sling bears an identification tag which is permanently 

marked with Working Load Limit, Description and Length. Slings 

should never be used beyond the Working Load Limit marked on these 

tags. 

SPECIALTY PRODUCTS 

Wide Lift (Cargo), Return Eye (Reverse Eye), Marine Boat Lift and Stone 

Handling Slings are manufactured to order. Contact Wesco Industries 

for advise on suitability for applications and designated Working Load 

Limits for these type of slings. 

Procraft Slings can be treated with a number of coatings which meet 

the specific demands made by industry. Treatments can include a 

Latex coating which helps extend sling life, increases the stiffness of 

slings and reduces the amount of stretch. Coatings will not affect the 

slings Working Load Limit. 

Wesco Industries also manufacture webbing nets for use as cargo 

lifting nets, fall protection nets and debris protection nets. 




POLYESTER 

ENDLESS SLINGS 

INTRODUCTION 

Wesco Industries endless synthetic slings are manufactured from a 

continuous loop of polyester yarn covered by a single herringbone 

weave jacket. The jacket is colour coded and protects the inner core of 

load bearing polyester yarns from damage and UV rays. 

Endless slings have many advantages including: 

• Low stretch (about 3% at rated capacity). 

• Excellent contact and conforms to shape of your load to grip 

securely. 

• Cover will not scratch or damage your load surface. 

• Light weight. 

• Excellent for use in choke hitch applications as sling releases 

easily after use. 

WORKING LOAD LIMIT CHARTS 

Polyester 

Round Sling 

Endless 

Colour Vertical (lbs) Choker (lbs) Basket (lbs) 

Purple 2,650 2,120 5,300 

Black 5,300 4,240 10,600 

Yellow 8,400 6,720 16,800 

Tan 10,600 8,500 21,200 

Red 13,200 10,560 26,400 

Orange 16,800 13,440 33,600 

Blue 21,200 17,000 42,400 

Gray 31,700 25,300 63,400 

Brown 52,900 42,300 105,800 

Olive 66,100 52,880 132,200 

• Steel hardware fittings and protective sleeves are 

available for endless slings. 




PAGE 9

POLYESTER 

TIE DOWN ASSEMBLIES 

INTRODUCTION 

Wesco Industries manufacture a complete range of truck tie down 

assemblies and associated products from 1 inch to 4 inch wide 

webbing. Every assembly is manufactured to strict quality standards 

and use only the best hardware available. 

With our in house manufacturing facilities we can produce any custom 

length or hardware configuration required. All tie down assemblies are 

rated for lashing capacities only and should not be used for lifting 

purposes. 

When ordering tie down assemblies the following information is 

required: 

• Webbing width (1”, 2”, 3” or 4” Wide). 

• Type: Ratchet (Short or long handle), Cam Buckle or Winch Strap 

only. 

• Length of strap. 

• Hardware required: Wire Hooks (3/8” or 1/2”), S Hooks, Flat Hooks 

or Dee Rings. 

• Colour of webbing material (if important). 

Ratchet Buckles 

HARDWARE 

Short Handle Long Handle Over Centre Buckle Cam Buckle 

End Fittings 

3/8” Wire Hook 1/2” Wire Hook 

Delta Ring S Hook Flat Hook Snap Hook E Track Fitting F Track Fitting 




PAGE 10

RATCHET TIE DOWNS 

1” Wide 

This size is commonly used for small utility or van tie downs. Standard 

assemblies come complete with 9” fixed end and 16 feet strap. 

1” Ratchet Tie Down with Wire Hooks 

Breaking Strength 2,500lbs. 

Rated Capacity 835lbs. 

1” Ratchet Tie Down with 'S' Hooks 


Rated Capacity 400lbs. 

2” Wide 

This size is the most commonly used tie down and is suitable for a 

wide range of applications including flat bed trucks and van tie downs . 

Standard assemblies come complete with 18” fixed end and 25 feet 

strap. 

2” Ratchet Tie Down with 3/8” Wire Hooks 


Rated Capacity 1,670lbs. 

2” Ratchet Tie Down with 1/2” Wire Hooks 



2” Ratchet Tie Down with Flat Hooks 



2” Ratchet Tie Down with Dee Fittings 



2” Ratchet Tie Down with E Track Fittings 




Industries Ltd. WARNING: NEVER EXCEED WORKING LOAD LIMITS PAGE 11

3” & 4” Wide 

This size is commonly used on flat bed trucks. Standard assemblies 

come complete with 18” fixed end and 30 feet strap. 

Ratchet Tie Down with Wire Hook 

4” Wide: Breaking Strength 20,000lbs, Rated Capacity 6,660lbs 

Ratchet Tie Down with Dee Fittings 

3” Wide: Breaking Strength 16,200lbs, Rated Capacity 5,400lbs. 

4” Wide: Breaking Strength 20,000 lbs, Rated Capacity 6,660lbs. 

Ratchet Tie Down with Flat Hook 

3” Wide: Breaking Strength 16,200lbs, Rated Capacity 5,400lbs. 

4” Wide: Breaking Strength 16,200 lbs, Rated Capacity 5,400lbs. 

RATCHET LOOP ASSEMBLIES 

Ratchet Loops are manufactured using a ratchet with a continuous 

length of webbing attached. Commonly used for bundling, stage 

rigging and tie down. Ratchet loop assemblies are manufactured in 1”, 

2”, 3” and 4” wide webbing. Please specify length of webbing, width 

and ratchet handle type (short or long). 

• 1” Wide: Breaking Strength 2,500lbs. 







PAGE 12

CAM BUCKLE & OVER CENTRE 

Cam buckle & over centre tie downs are manufactured to order. They 

are available in 1” and 2” wide webbing. Assemblies would be 

manufactured with a 12” fixed end. Specifications required at time of 

order are as follows: 

• Webbing Width (1” or 2”). 

• Buckle type (Cam or Over Centre). 

• Hardware required (Hooks, Ring or E Track). 

• Strap Length. 

STRAP ONLY 

Tie down straps can be manufactured in any configuration of width, 

length and hardware fittings. The straps that are stocked are 

generally suitable for truck winches and have a hook or fitting sewn 

on one end only. 

Stocked items include straps in 4” wide webbing x 30 feet with either 

a Dee Ring Fitting or Flat Hook and are available in an array of 

colours. Also stocked are 2” wide webbing straps x 25 feet with 

either a Wire Hook, Dee Ring or Flat Hook. 



TOW TRUCK ASSEMBLIES 

Wesco Industries manufacture a range of products suitable for the Tow 

Truck industries. Products include Wheel Lift Straps, Ratchet Loop 

Assemblies, Transport Bridle Assemblies and Wheel Tie Down Straps. 

Webbing straps can inlcude towing hooks and cluster assemblies 

where required. Information required at time of order includes: 

• Assembly type or application. 

• Webbing Width (Standard is 2”). 

• Hardware if required (”J” Hooks, “T” Hook, “R” Hook, Clusters). 

• Strap Length. 

• Is a Ratchet Required. 

OFF ROAD RECOVERY STRAPS 

Wesco Industries produce a range of off road accessories for use with 

recreational vehicles. 

Snatch straps can be used to retrieve vehicles from a trapped situation 

(mud and sand). Standard length 27 feet. 

Winch extension straps are light weight (compared to chains) but 

extremely strong and suitable in most applications. Standard Length 

30 feet, 60 feet or 90 feet. 

Tree trunk protectors are designed to protect trees from the cutting 

action of winch cables, the strap is simply placed around the trunk and 

secured with an anchor shackle. Standard length 10 feet. 




PAGE 14

BULK WEBBING & ACCESSORIES 

Webbing is available in a range of sizes, colours and lengths. Webbing 

suitable for lifting is available in blue or yellow and range in width from 

1” to 12”. Webbing suitable for tie down are available in yellow or black 

and range in width from 1” to 4”. Full coils are generally 50 metres or 

100 metres but can be cut to length as required. 

All hardware is available as separate items including ratchets, cam 

buckles and hooks. 

WEBBING NETS 

Wesco Industries manufacture a large variety of nets suitable for most 

applications. Uses can include: 

• Ship gangway nets. 

• Cargo nets. 

• Debris fall protection nets. 

• Ship safety perimeter net. 

Information required at time of order includes: 

• Applications of net (Lifting, Safety etc.) 

• Working Load Limit. 

• Webbing Material (Nylon or Polyester). 

• Net Size. 

• Lifting eyes in all corners. 

• Mesh size. 

All webbing nets are manufactured to customer orders. Some 

consultation between Wesco Industries and the client would be 

required to meet the exact requirements of our customers. 



INDUSTRIES LTD. 

www.wescovan.com 

Head Office: Unit 1, 9663-199A Street 

Langley BC V1M 2X7 

Phone: 604 881 3000 

Fax: 604 881 3010 

Email: info@wescovan.com 

Rigging Centre: 2437 Beta Avenue 

Burnaby BC V5C 5N1 

Phone: 604 292 1220 

Fax: 604 292 1222 

Email: burnaby@wescovan.com 

Distributors of: 

Wire Rope & Fittings - Powerstrand, Esco, Crosby, Campbell. 

Wire Rope all types of constructions and diameters, Wire 

Rope Fittings, Wire Rope Assemblies, Grips, Hooks, & Links. 

Slings - Powerstrand, Gunnebo, Campbell, Procraft. 

Wire Rope, Chain, Webbing, Endless Polyester & Rope. 

Chain & Fittings - Campbell, Gunnebo - Grabiq, Procraft. 

Grade 30, Mooring & Lashing, Grade 70, 80 & 100. 

Hoists & Trolleys - Columbus Mckinnon, Coffing & Campbell. 

Chain Hoists, Lever Hoists, Cummalongs, Electric Hoists, Air 

Hoists, Winches, Beam Clamps & Trolleys. 

Lifting Equipment- CM, Merrill, Terrier, Johnson, Rud, Crosby. 

Shackles, Hooks, Plate Clamps, Crane Blocks, Eyebolts, 

Turnbuckles. 

Cordage - Novatec Braid, Samson, Procraft. 

Double Braid, 12 Strand, 8 Strand, 3 Strand & Cords. 

Towing & Tie Down - Procraft, CM, Crosby. 

Loadbinders, Straps, Chain & Hooks, & Wire Rope 

Assemblies. 

Industries Supplied: 

Crane, Construction, Logging, Marine, Industrial, Towing, 

Entertainment, Elevator, Mining, Offshore Oil & Gas, Fishing, 

Forestry, Utilities, Steel Works & Rigging. 

© Copyright Wesco Industries Ltd 2004 

January 2004

Synthetic Lifting Slings - Wesco Industries Ltd.

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