Twin-Path® Extra Slings with Covermax® & K-Spec® Core Yarn with Check-Fast® Inspection TPXCF

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This is the world’s first truly ergonomic sling—Covermax® covers for superior abrasion resistance.

These are made in sizes up to 600 tons vertical rated capacity. Larger capacity slings are available. These slings have overload indicators, inner red cover, and are used worldwide in place of wire rope for heavy lifts. They are approximately 10% of the weight of a steel sling. These products are repairable. The Twin-Path® patented design provides the rigger with two connections between the hook and the load for redundant back-up protection. These slings have less then 1% stretch at rated capacity.

If ergonomics, productivity and safety are important, then these slings are the only choice. This is the lightest and strongest sling on the market today with K-Spec®—the longest lasting load bearing core yarn, backed by independent testing.

Check-Fast™ Inspection System—now available in Twin-Path® Extra Slings

The Check-Fast® System is designed to improve job-site safety. The Check-Fast® Tag and External Warning Indicator (EWI) on a round sling product provide for a pass / fail inspection of the internal load bearing core yarn. Damage to the core yarn from fiber on fiber abrasion, fatigue and severe overload can be detected. If the sling is mistakenly overloaded beyond rated capacity, the EWI is designed to disappear before the sling fails. The sling inspector now has a GO / NO-GO inspection device rather than relying on a subjective hand-over hand inspection to make an educated guess if the load bearing core yarns are in good condition. This safety system is available for polyester or High-Performance K-Spec® Fiber Roundslings.

The Check-FastTM System is an independent sacrificial element in the roundsling and is not a part of the actual load bearing structure of the sling. If the Check-FastTM System indicates internal damage, it does so without further weakening of the bearing core.

Twin-Path® Extra Slings with Covermax® & K-Spec® Core Yarn with Check-Fast® Inspection TPXCF

Slings & Assemblies Product Warnings


Progressive Crane
Phone: 800.83CRANE

Mazzella Crane Service
Phone: 877.96CRANE

KCI Crane Service
Phone: 205.345.4701


Mazzella Lifting Technologies
Phone: 800.362.4601

Indusco Wire Rope & Supplies
Phone: 410.727.0665 (Baltimore)
Phone: 301.499.8800 (Capitol Heights)

J. Henry Holland
Phone: 757.460.3300 (Virginia Beach)
Phone: 757.827.9600 (Hampton)

Alabama Sling Center
Phone: 205.744.0230

Tennessee Sling Center
Phone: 901.345.8918 (Memphis)
Phone: 423.634.9005 (Chattanooga)

Rouster Lifting & Rigging
Phone: 304.252.6031

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