Twin-Path® Heavy Lift Slings

Perform heavy lifts with Twin-Path high-performance synthetic roundslings. Twin-Path slings are used worldwide in place of steel rigging for heavy lifts. They are approximately 10% of the weight of a steel sling and are repairable. The Twin-Path sling design, which has two individual paths of fiber working as one sling, gives the rigger confidence. Additionally these slings designed for heavy lifting come equipped with Check-Fast® Inspection overload indicators, Covermax® Covers for superior abrasion resistance, and inner red covers as an aid to inspection. These slings have less than 1% elongation at rated capacity.

If productivity, safety, and precision are important, then Twin-Path high-performance roundslings are your best choice for all industrial heavy lifting applications. Independent testing shows that  K-Spec® Core Yarn (approved by DNV) is the longest lasting load-bearing core yarn in any sling.

PA turnpike (Large)

Advantages of Twin-Path Slings

Rigging up twin Path Sling slingmax website

Lightweight and Ergonomic

One of the biggest advantages of Twin-Path slings is their lightweight and ergonomic design. They are much easier to handle and rig than heavy steel slings, making them a safer choice for workers and reducing the risk of injuries.

Twin Path Synthetic Sling

High Strength and Durability

Despite being lightweight, Twin-Path slings are incredibly strong and durable. Inside every Twin-Path roundsling are load bearing core yarns called K-Spec, which is 10 times the strength of steel, but 90% the weight. This high strength makes these slings suitable for a wide range of applications, from construction and power generation to wind energy and offshore oil and gas.

Check fast for Slingmax website 3-21-23 Medium

Easy Inspection and Repair

Twin-Path High Performance Roundslings are equipped with the Check-Fast Inspection System which acts as an external warning indicator (EWI) that sticks out from the cover and if overloaded, retracts back into the cover and disappears. The core yarns of every Twin Path sling is protected by our Covermax Cover which is a double layered jacket that is very abrasion resistant and includes contrasting colors on the external and internal layers for easy damage identification.  Due to the Twin-Path design, abrasion damage can be easily repaired by any authorized Slingmax manufacturer. This ensures that the sling remains in good condition and can be used safely and efficiently for many lifts.

Cornermax sleeve slingmax website

Abrasion and Cut Protection

Twin-Path slings also excellent protection against abrasion and cuts. The outer covers of these slings are made from two layers of heavy-duty industrial nylon, which provides excellent UV protection and abrasion resistance. Additionally, Slingmax offers three types of engineered edge and cut protection made from high-performance synthetic materials: Cornermax Pad, Cornermax Sleeve, and Synthetic Armor Pad.

Twin-Path Sling Design and Applications

Slingmax® Twin-Path roundslings are a type of high performance, endless round sling that are constructed from two individual paths of internal load-bearing high performance fibers and two layers of external covers that all work together as one sling. Due to their strength, durability, and flexibility, Twin-Path slings are commonly used in a range of industries that require overhead lifting such as:

Website Rifled Cover On Twin Path Machine Medium
Arch piece Frederick Douglas Memorial Bridge 2 - Website Medium


Used in a wide variety of applications and types of construction projects, Twin-Path slings are the preferred lifting sling for projects like building bridges or constructing skyscrapers. Lightweight and repairable, Twin-Path slings are designed to be easy to rig and long lasting. 

Power Generation and Distribution

Installation and maintenance of power generation equipment made easy with Twin-Path round slings. Our slings have been lifting power components such as turbines and generators for over 30 years!

Wind Energy

Twin-Path slings are used for the installation and maintenance of onshore and offshore wind turbines, including the setting of towers and lifting of nacelles.

Offshore Oil and Gas

Neutrally buoyant and unaffected by long exposure to seawater, Twin-Path slings are used extensively during the installation and maintenance of offshore oil and gas production equipment, such as pumps or large engines. 

Manufacturing and General Industry

Twin-Path slings are used for a wide range of manufacturing and general industry applications, particularly for die lifts and other repetitive lifts where abrasion damage and tension fatigue could be a concern.

The table below is a sample representation of our Twin-Path® slings at a 5:1 Design Factor (DF)/ Safety Factor (SF). Capacities up to 4000 Te MBL and other DF/SF Twin-Path® products are available. Please call, email, or utilize our "Contact Us" form for special requests.
Note: Capacities shown include both paths and are for one complete sling. Sling ratings based on commercial fittings of equal or greater capacity. Conforms to ANSI/ASME B30.9 chapter 6, NAVFAC P-307 section , Cordage Institute CI-1905, and Web Sling & Tie Down Association WSTDA-RS-1HP  . This chart is based on a 5:1 Design Factor (DF); but any other DF can be fabricated. Higher capacity slings are available. CAPACITIES ARE IN POUNDS (LBS.).
Twin -Path® Sling Stock No. Vertical Choker Vertical Basket Basket Hitches Approximate Weight
(Lbs. per Ft.)
Body Width
TPXCF/TPXC 1000 10,000 8,000 20,000 17,320 14,140 .41 1.5-3"
TPXCF/TPXC 1500 15,000 12,000 30,000 25,980 21,210 .46 1.5-3"
TPXCF/TPXC 2000 20,000 16,000 40,000 34,640 28,280 .52 1.5-3"
TPXCF/TPXC 2500 25,000 20,000 50,000 43,300 35,350 .67 2.0-4"
TPXCF/TPXC 3000 30,000 24,000 60,000 51,960 42,420 .73 2.0-4"
TPXCF/TPXC 4000 40,000 32,000 80,000 69,280 56,560 .86 2.0-4"
TPXCF/TPXC 5000 50,000 40,000 100,000 86,600 70,700 1.07 2.5-5"
TPXCF/TPXC 6000 60,000 48,000 120,000 103,920 84,840 1.20 2.5-5"
TPXCF/TPXC 7000 70,000 56,000 140,000 121,240 98,980 1.33 2.5-5"
TPXCF/TPXC 8500 85,000 68,000 170,000 147,220 120,190 1.61 3.0-6"
TPXCF/TPXC 10000 100,000 80,000 200,000 173,200 141,400 1.80 3.0-6"
TPXCF/TPXC 12500 125,000 100,000 250,000 216,500 176,750 2.31 4.0-8"
TPXCF/TPXC 15000 150,000 120,000 300,000 259,800 212,100 2.64 4.0-8"
TPXCF/TPXC 17500 175,000 140,000 350,000 303,100 247,450 2.96 4.0-8"
TPXCF/TPXC 20000 200,000 160,000 400,000 346,400 282,800 3.47 5.0-10"
TPXCF/TPXC 25000 250,000 200,000 500,000 433,000 353,500 4.12 5.0-10"
TPXCF/TPXC 27500 275,000 220,000 550,000 476,300 388,850 4.61 6.0-12"
TPXCF/TPXC 30000 300,000 240,000 600,000 519,600 424,200 4.93 6.0-12"
TPXCF/TPXC 40000 400,000 320,000 800,000 692,800 565,600 6.74 7.0-14"
TPXCF/TPXC 50000 500,000 400,000 1,000,000 866,000 707,000 8.40 8.0-16"
TPXCF/TPXC 60000 600,000 480,000 1,200,000 1,039,000 848,000 10.15 9.0-18"
*Dimensions can vary according to the hardware or bearing points the slings are used with.
Minimum us "tapered" width; Maximum is the flat tubing width.
Roundsling warning (not spark eater

Rigging Handbook

Rigging Handbook

Fill out the form below to download a digital copy of our 2020 Rigging Handbook.



Slingmax has been a trusted supplier of high performance synthetic roundslings to the industrial and heavy lifting markets since 1986. Think Twin-Path® slings for all your heavy lifting and rigging needs.



The Equalizer Block is used to maintain tension on all legs of the sling during a lift. The Equalizer Block will automatically adjust itself when tension is put on the device from the sling. This was designed specifically for Twin-Path® Extra Slings



Slingmax multi-part wire rope slings are designed for increased capacity and excellent flexibility. The three-part Tri-Flex, nine-part Gator-Laid, and nine-part Gator-Flex grommet have excellent D/d ratios and can be fabricated in shorter lengths.

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