HMPE Synthetic Rope Slings
|HMPE Synthetic Rope Slings|
|Stronger and lighter are the two key elements of Synthetic Rope that make it the choice for lifting slings and winchlines.Synthetic rope does not store energy like steel cables, and in the event of a failure it is much less likely to result in severe injuries caused by the recoil of broken wire cables.Our slings are fabricated as Endless Grommet slings resulting in 60% greater strength than Eye and Eye Slings.We also install a “Chafe Guard” using the same HMPE Fiber but woven in a specific pattern to decrease abrasions and cuts.This chafe guard is color coded to indicate size and capacity. Proven to Perform Better than Steel|
Operating Practices for HMPE Synthetic Rope Slings
- Can fail if damaged, misused or overloaded.
- Inspect before use.
- Use only if trained.
- Observe rated load.
- Pad edges of load to avoid damage to sling.
- Death or injury can occur from improper use or care.
Instructions for Use and Inspection of HMPE Synthetic Rope Slings
- Check weight of load.
- Check tag to confirm that sling is rated adequately for the load (see load angle chart).
- Sling shall not be twisted, tied into knots or joined by knotting.
- Be sure the load cannot cut the sling during the lift by padding corners, edges, protrusions, or abrasive surfaces; use materials of sufficient strength and thickness.
- Center load on base (bowl) of hook unless sling hook is designed for point loading.
- Balance the load.
- Maintain load control.
- Avoid jerking the load.
- Be alert for snagging of load.
- Avoid dragging sling over rough surfaces and from under the load.
- Choker hitch must choke on sling body, never on end fitting.
- Always stand clear of load.
- Persons are not to ride on sling or load.
- If sling is to be used in a chemical environment or in temperatures below -40° f or above 400°F. Contact manufacturer for specific recommendations.
- When shortening chain, use only the manufacturer’s recommended alloy components.
- Before each use, check for nicks, gouges or excessive wear.
- Inspect for bent, twisted, deformed chain or components.
- Inspect for heat damage, weld spatter, pitting or corrosion, increase in hook throat opening, missing latch (if so equipped).
- If this wear or damage is present, if rated load tag is missing or illegible, remove from service and repair or replace sling.
- Periodic inspections are required at least annually for normal service, quarterly or more frequently if in severe service or nearly constant use.
- Periodic inspections are performed only by chain manufacturer or other designated person who records the observed condition and determines when further use would be hazardous.
Load Angle for Slings
- Angle factor must be applied to calculate the reduced sling capacity when lifting force is not at 90º to the plane of the load.
- Multiply angle factor x sling's vertical rated load to calculate the reduced capacity at that angle.
- Because of the greatly reduced lifting capacity, use extra care when the sling to load angle, also known as the horizontal angle, is less than 45° and do not make lifts of less than 30°load angle.
- Example: a sling with adequate capacity could be broken because of increased tension resulting from angles of less than 30°.
|Sling Load Angle Chart|
- Exceeds industry standards for Grade 100 chain slings.
- Can be used for all types of chain applications.
- Sling's high-visibility green finish enhances workplace safety.
- Standard lengths available from 5' - 20', custom lengths available upon request.
- Made in the U.S.A. Ships in 4-7 business days. Covered by standard manufacturer's warranty.
Choke Angle Effect for Slings
|Sling Choke Angle Effect Chart|
|Angle of Choke||Rated Capacity*|
|*Percent of Sling Rated Capacity in a Choker Hitch|
D-d Ratio for Slings
- Rated capacity of the sling shall be decreased when D:d Ration will be smaller than that cited in the latest revision of ASME B30.9 Ch2.
- Consult the sling manufacturer for specific data or refer to the WRTB Wire Rope Sling User's Manual.
- General Note: When the (D) is 25 times the component rope diameter (d), the D:d Ration is expressed as 25:1.