Rigging & Lifting Gear
Wire rope slings, chain slings, synthetic webbing, shackles, hooks, and below-hook lifting devices. WLL reduction factors, inspection intervals, and rejection criteria per ASME B30.9 and EN 818.
Wire Rope Sling
Assembled from galvanised or stainless wire rope with spliced eyes, swaged ferrules, or mechanical sockets. Highly resistant to heat and abrasion. The preferred sling in steel plants, foundries, and offshore applications.
Key Features
- Six-strand (6×19, 6×36) or spiral strand construction
- Galvanised, ungalvanised, or stainless steel
- Flemish eye splice or swaged aluminium ferrule
- Thimbles protect eye from sheave/hook wear
- Reduction factor for sling angles and bends
- Rejection: broken wires >10% in one lay length, corrosion, kinks
Typical Applications
- Steel plate and coil handling
- Offshore rigging
- Foundry moulds
- Heavy machinery installation
- Ship loading
Heavier and less flexible than synthetic slings; cannot be used on soft-surface loads (damages edges).
Grade 80 / Grade 100 Chain Sling
Alloy steel chain sling in Grade 80 (800 MPa) or Grade 100 (1,000 MPa). Excellent resistance to heat, abrasion, and impact. Can be used in environments up to 200°C without derating (Grade 80). Mandatory colour-coding by WLL.
Key Features
- Grade 80: safe to 200°C (derate above)
- Grade 100: higher WLL in same chain diameter
- Adjustable shortening hooks or clutch-type hooks
- Single, double, triple, and quad leg assemblies
- Annual proof load test to 2× WLL
- Rejection: elongation >5%, surface damage >10% diameter, twisted links
Typical Applications
- Foundry and forge lifting (hot loads)
- Steel works
- Rough terrain with abrasive contact
- Repeat-use lifting points
Heavy — Grade 80 chain is 3–5× heavier than equivalent synthetic; cannot be used with sharp-edged loads without protection.
Flat Webbing Sling
Woven polyester flat web or tubular round sling for loads that must not be scratched or dented (painted surfaces, aerospace components, pipes). Lightweight, flexible, and low-cost. Must be protected from sharp edges by edge protectors.
Key Features
- Polyester (standard) or nylon (stretch-sensitive loads)
- Colour-coded by WLL (EN 1492-1)
- Spreads load over wide flat surface
- Low self-weight — easy handling
- Temperature range: -40°C to +100°C (polyester)
- Rejection: cuts, abrasion exposing core, chemical damage, heat damage
Typical Applications
- Machinery installation
- Automotive body panels
- Glazed components
- Precision equipment
- Pipes and vessels with coatings
Must not be used near sharp edges without protection; susceptible to UV degradation on outdoor storage; not for acidic environments.
Shackle (Dee & Bow)
The most widely used rigging fitting. Dee (straight) shackle for in-line loads; bow (anchor/omega) shackle for multi-sling connections or side loads. Screw pin (temporary), safety bolt/nut (permanent), or hammer lock (offshore).
Key Features
- Dee shackle (D-shackle): in-line loading only
- Bow shackle (anchor shackle): multi-directional loading
- Screw pin: temporary — must be moused or secured
- Safety bolt and nut: semi-permanent
- Alloy steel (Grade S) or Grade T (higher WLL)
- WLL stamped on bow — mandatory check before use
- Annual proof load to 2× WLL
Typical Applications
- Universal rigging connection
- Sling-to-hook
- Multi-leg assemblies
- Lifting point on structures
- Mooring and marine
Screw pin must be secured (mouse wire / duct tape) to prevent unscrewing under rotation; bow shackle side load must not exceed 25% of WLL.
Spreader Beam & Lifting Beam
Spreader beams convert multi-leg sling loads into pure compression (spreader) or act as rigid beam lifting devices (lifting beam). Essential for long or awkward loads that cannot be lifted with a standard sling due to sling angle or compression risk.
Key Features
- Spreader beam: telescopic (adjustable) or fixed length
- Lifting beam: above-hook device with multiple lift points
- Adjustable lugs for different load widths
- Pad eyes rated for design load with FoS ≥3
- Proof load test certificate supplied (typically 125% WLL)
- EN 13155 (permanent) or LOLER documentation
Typical Applications
- Long structural steel / precast beams
- Vessel installation
- Module lifts
- Wind turbine blade installation
- Transformer lifts
Heavier than slings; requires careful centre-of-gravity (CoG) calculation; dedicated storage required.
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