Carcano Synthetic Sling Fittings
Synthetic slings, web and round, terminate at forged hardware fittings at each end. The fitting transfers the load from the textile body into the rigging hardware above. Carcano Antonio SpA produces forged alloy steel fittings for synthetic sling assemblies at their facility in Valmadrera, Italy. These fittings are manufactured to EN 1677 series standards and are aligned with the WSTDA WS-1 (web slings) and WSTDA RS-1 (round slings) requirements used in North American synthetic sling service.
About Carcano Synthetic Sling Fittings
A synthetic sling fitting is the metal hardware sewn, pressed, or captured into the end of a web sling or round sling. It is what the hook or shackle connects to. The fitting and the textile sling body are rated together, the fitting's WLL is part of the sling assembly's overall rating.
Carcano manufactures synthetic sling fittings as forged alloy steel components. The forging process produces fittings with controlled geometry and mechanical properties suited to the load transfer from a textile body. These fittings are manufactured to EN 1677 series standards, the European standard governing forged fittings for chain and textile sling assemblies.
In North American service, web slings fall under WSTDA WS-1 (Web Sling and Tiedown Association, web slings) and round slings fall under WSTDA RS-1. ASME B30.9-2018 (Slings) governs synthetic sling assemblies for overhead lifting. Carcano fitting documentation supports sling assembly qualification under these standards.
Holloway Houston stocks Carcano synthetic sling fittings in Houston for same-day shipping on in-stock configurations.
Types of Carcano Synthetic Sling Fittings
Flat Eye Fittings
Flat eye fittings are pressed or sewn into the end of a web sling, creating a metal eye through which the hook or shackle connects. The flat geometry distributes the load from the sling webbing into the metal fitting. Carcano flat eye fittings are WLL-rated and matched to the webbing width and sling assembly capacity.
Deltalock Fittings (Triangular Eyes)
Deltalock or triangular fittings provide a wider load-bearing surface than a flat eye. The triangular geometry distributes the connection load across a larger contact area at the fitting. These are frequently used in web sling assemblies where the sling is used in a basket or choker configuration and the fitting presents cleanly to the hook or ring above.
Master Rings for Synthetic Slings
Master rings at the top of a multi-leg synthetic sling assembly collect sling legs and present a single point for the crane hook. Carcano produces forged alloy master rings sized and WLL-rated for synthetic sling assembly configurations. These differ from chain sling master links in geometry, synthetic sling master rings are proportioned to accept the textile webbing or round sling body without damaging the synthetic material.
Swivel End Fittings
Swivel end fittings incorporate a rotating bearing at the fitting-to-sling interface, allowing the fitting to rotate relative to the sling body without twisting the textile. Where load orientation shifts during a lift, the swivel fitting absorbs that movement rather than transmitting torque into the sling body.
Order Carcano Synthetic Sling Fittings from Holloway Houston
Holloway Houston rigging specialists can help identify the right Carcano fitting type, geometry, and WLL for your synthetic sling assembly.
Standards for Synthetic Sling Fittings
Carcano synthetic sling fittings operate under two standards frameworks depending on the market:
European standard system:
- EN 1677-1: General conditions of acceptance for forged fittings used in sling assemblies.
- EN 1677 series (applicable parts): Component-specific requirements for fitting types.
North American standards:
- WSTDA WS-1: Web Sling and Tiedown Association standard for web slings. Covers sling body, fittings, and assembly requirements for flat web synthetic slings.
- WSTDA RS-1: WSTDA standard for round slings. Covers round sling body, end fittings, and assembly requirements.
- ASME B30.9-2018: Slings. Covers synthetic sling assemblies for overhead lifting service in North America.
Fitting documentation from Carcano includes WLL ratings, grade designation, and manufacturer marking per EN 1677-1 requirements. WSTDA standards cover the sling assembly as a whole, including the fittings as part of the rated configuration.
About Carcano Antonio SpA
Carcano Antonio SpA is headquartered in Valmadrera, Lecco, Italy and manufactures forged steel fittings for the full range of lifting and sling hardware applications. The synthetic sling fitting line covers what sling manufacturers and distributors need to produce complete rated web and round sling assemblies.
Carcano exports products to North American markets through authorized distributors. Holloway Houston is the authorized North American distributor, stocking Carcano synthetic sling fittings alongside hooks, master links, chain accessories, and lifting rings.
Shop by Fitting Type
- Carcano Flat Eye Fittings
- Carcano Deltalock / Triangular Eye Fittings
- Carcano Master Rings for Synthetic Slings
- Carcano Swivel End Fittings
Carcano Synthetic Sling Fitting Applications by Industry
- Oil and Gas: Web and round sling end fittings for pipe handling, equipment moves, and vessel rigging where synthetic slings are preferred over chain.
- Steel Industry: Sling fittings for coil and plate handling where web slings with flat eye fittings protect load surfaces.
- Aerospace and Defense: Precision sling assemblies for aircraft components and equipment where synthetic material and forged fittings are specified.
- Marine: Synthetic sling fittings for deck hardware and vessel lifts where weight and corrosion resistance favor synthetic over chain.
- Construction Industry: Multi-leg synthetic sling assemblies for precast concrete and structural steel where surface protection matters.
- General Industrial: Production and maintenance lifts where web and round slings with forged fittings are the standard configuration.
Why Holloway Houston for Carcano Synthetic Sling Fittings
Holloway Houston has been in the rigging and lifting business for over 65 years. We manufacture our own web and round slings in Houston and stock Carcano forged fittings to support synthetic sling assembly work across the Gulf Coast and nationwide.
Our rigging specialists can advise on fitting selection for specific sling body configurations and WLL requirements. In-stock Carcano fittings ship from Houston same-day.
Holloway Houston also offers rigging inspection services, our qualified inspectors examine synthetic slings and end fittings per ASME B30.9-2018, WSTDA WS-1, WSTDA RS-1, and OSHA standards to keep your equipment in service.
Complete Your Synthetic Sling Assembly
- Carcano Lifting Rings & Points : Top-of-assembly lifting rings for multi-leg synthetic sling setups.
- Carcano Master Links : Top fittings for assemblies that combine synthetic slings with chain hardware.
- Carcano Hooks : Sling hooks compatible with synthetic sling end fitting configurations.
Synthetic Sling Fitting Safety and Awareness
Synthetic sling fittings are load-bearing components governed by ASME B30.9-2018 (Slings) in North American service, and by WSTDA WS-1 (web slings) and WSTDA RS-1 (round slings) for the full sling assembly. EN 1677-1 and the applicable EN 1677 series parts govern these components under the European standard system.
- The fitting WLL is part of the sling assembly's rated capacity, a fitting rated below the sling body capacity limits the assembly to the fitting rating.
- Pre-use inspection of synthetic sling fittings covers the fitting body for cracks, deformation, or corrosion; the eye or ring for wear from the hook or shackle; and the fitting-to-sling interface for damage to the webbing or round sling body at the fitting seat.
- Fittings that show sharp edges, deformation, or corrosion that could damage the sling body at the contact point warrants assessment before continued use.
- The hook or shackle used with a synthetic sling fitting is matched to the fitting geometry, a hook that contacts only the tip of the fitting eye or a shackle that contacts the corner of a triangular fitting creates a stress concentration not covered by the fitting's WLL rating.
Frequently Asked Questions
A synthetic sling fitting is the forged metal hardware at the end of a web sling or round sling that connects the sling to the hook, shackle, or ring above. The fitting transfers the load from the textile sling body into the rigging hardware. Carcano fittings are hot-forged alloy steel, WLL-rated, and manufactured to EN 1677 series standards.
A flat eye fitting is a simple oval or rectangular ring pressed or sewn into the sling end, the hook or shackle threads through the flat eye. A Deltalock (triangular) fitting has a wider triangular shape that distributes the connection load across more surface area and presents a better geometry for basket or choker configurations where the fitting sits cleanly against the load path.
ASME B30.9-2018 governs synthetic sling assemblies for overhead lifting in North America. WSTDA WS-1 covers web sling assemblies including their end fittings. WSTDA RS-1 covers round sling assemblies. The fitting is a rated component of the overall sling, its WLL and documentation are part of the assembly qualification under these standards.
Holloway Houston manufactures web and round slings in Houston. Carcano forged fittings are compatible with Holloway Houston sling assemblies where the fitting geometry, WLL, and sling body width match. Rigging specialists can advise on specific configurations, call 1-888-496-4700 for assistance.
Holloway Houston stocks Carcano synthetic sling fittings in Houston, Texas, including flat eye fittings, Deltalock fittings, master rings, and swivel end fittings. In-stock items ship same-day. Call 1-888-496-4700 or visit 5833 Armour Dr., Houston, TX 77020 for current availability on specific fitting types and WLL ratings.
Pre-use inspection of synthetic sling end fittings covers the fitting body for cracks, deformation, and corrosion; the eye or ring for wear at the contact point with the hook or shackle; and the area where the fitting meets the sling body for damage to the textile. ASME B30.9-2018 and WSTDA WS-1 and RS-1 specify inspection criteria for sling assemblies including their fittings.
DISCLAIMER
Carcano synthetic sling fittings are load-bearing components used in textile sling assemblies. Selection, inspection, and use call for training consistent with ASME B30.9-2018 (Slings), WSTDA WS-1 (web slings), WSTDA RS-1 (round slings), and applicable OSHA standards. The information on this page is provided for general product awareness and does not replace qualified engineering judgment, manufacturer documentation, or site-specific lift planning.