| Balanced machinery crate | Rigid, stable load with a known center of gravity and two certified lifting points | 1,000 kg | Two-leg sling; 60° included working angle from the horizontal reference | Approximately 577 kg per leg under ideal equal loading | Two-leg synthetic web sling or wire-rope sling with compatible shackles; use edge protection where the sling contacts corners | At least 1,000 kg WLL per leg after configuration and angle factors | Firm, level ground; clear travel path; no personnel beneath the suspended load | Check lifting-point rating, sling cuts, abrasion, broken wires, deformed shackles, and leg identification tags |
| Steel frame with a high center of gravity | Rigid but top-heavy load; center of gravity must remain inside the lifting polygon | 2,000 kg | Two-leg sling; 45° angle from the horizontal reference | Approximately 1,414 kg per leg under ideal equal loading | Two-leg wire-rope or alloy-chain sling with a spreader beam if sling compression or load instability is possible | At least 2,000 kg WLL per leg; increase capacity if loading may be unequal | Control rotation with tag lines; verify overhead clearance and crane capacity throughout the lift | Inspect hooks, master links, chain elongation, wire-rope kinks, and the security of all connection points |
| Compact machine with restricted headroom | Dense load with limited overhead clearance and a low sling angle | 3,000 kg | Two-leg sling; 30° angle from the horizontal reference | Approximately 3,000 kg per leg under ideal equal loading | Short-leg chain sling or wire-rope sling; consider a lifting beam to keep sling forces more vertical | At least 3,200 kg WLL per leg; a higher rating may be required for uneven loading | Do not use a shallow sling angle unless the equipment rating is verified; maintain adequate headroom | Confirm angle-factor calculations, inspect lifting lugs, and check for side loading of hooks or shackles |
| Long steel beam | Long, flexible load that may bend or rotate during lifting | 2,500 kg | Two lifting points positioned near the ends; approximately 60° from the horizontal reference | Approximately 1,443 kg total sling-leg load for equal ideal loading | Two-leg wire-rope sling with a spreader beam to reduce bending and maintain vertical forces at the lifting points | At least 1,500 kg WLL per leg, subject to beam and connection calculations | Use tag lines; maintain a controlled lift path and prevent the beam from contacting structures | Check beam lifting points, sling seating, spreader-beam certification, and end stability |
| Bundle of smooth steel pipes | Cylindrical, rolling load with a risk of sling displacement | 750 kg | Two basket-hitch slings with the load fully supported; angle and hitch capacity must be verified | Depends on basket-hitch geometry and load distribution | Two synthetic round slings or web slings in basket configuration, with chokes, load restraints, and protective sleeves | Select a configuration-rated WLL above 750 kg with allowance for uneven loading | Chock the bundle before lifting; keep personnel away from the roll direction and use tag lines | Check sling seating, pipe contact points, protective sleeves, bundle restraints, and hitch security |
| Hot fabricated steel component | High-temperature surface with sharp edges and possible residual heat | 1,200 kg | Vertical or basket lift using two protected contact points | Determined by the selected hitch and sling angle | Alloy-chain sling or heat-rated wire-rope sling; do not use synthetic slings unless their temperature limit is confirmed | At least 1,500 kg configuration-rated WLL after temperature reduction factors | Confirm the sling temperature rating; isolate hot surfaces and prevent contact with molten material | Inspect for heat damage, discoloration, fused fibers, chain cracks, and sharp-edge protection |
| Outdoor lift near a chemical process area | Load exposed to moisture, chemicals, or corrosive vapors | 1,800 kg | Four-point lift with a certified lifting beam to control load balance | Calculated from the beam design and the actual load distribution | Corrosion-resistant hardware and a certified lifting beam; select sling material for the specific chemical exposure | Use the lowest WLL of the complete assembly, including beam, slings, shackles, and hooks | Review chemical compatibility, wind limits, ground bearing capacity, and electrical-clearance requirements | Check corrosion, pitting, coating damage, chemical attack, identification tags, and proof-test records |
| Load with an unknown center of gravity | Irregular or partially filled load with uncertain balance | 1,500 kg stated maximum | Initial low-height trial lift using adjustable or four-point lifting equipment | Cannot be reliably determined until balance is verified | Adjustable lifting beam or four-leg assembly with engineered attachment points; use a controlled trial lift | Do not select equipment from mass alone; use the engineered load distribution and the lowest component WLL | Raise only a few centimeters initially; stop immediately if the load tilts, shifts, or slips | Verify center of gravity, attachment strength, load path, sling tension, and crane stability |