Custom fabricated lifting beams should

Custom fabricated lifting beams should

• A. Be manufactured to any standard catalog rating, without engineering review.
• B. Be designed by an engineer, have rated capacity stamped and be test lifted at 125%.
• C. Be designed by the operator and used without inspection.
• D. Be used only for temporary tasks and not stamped.

Answer: (B)

Custom fabricated lifting beams must be engineered by a qualified engineer to ensure the beam’s geometry, material properties, welds, and attachments are appropriate for the load and how it will be spread. The rated capacity should be stamped so everyone knows the exact safe limit, and a test lift at about 125% verifies the beam can handle peak and dynamic loads beyond the nominal rating. This margin protects against unexpected factors like shock, misalignment, and changes in load distribution. Relying on a catalog rating without engineering review ignores the beam’s specific design and condition, which can lead to overloading or failure. If a beam is designed by the operator or used without inspection, there’s no verified design or safety check. And using a beam only for temporary tasks without stamping removes the traceable, documented rating that ensures safe use.

Custom fabricated lifting beams must be engineered by a qualified engineer to ensure the beam’s geometry, material properties, welds, and attachments are appropriate for the load and how it will be spread. The rated capacity should be stamped so everyone knows the exact safe limit, and a test lift at about 125% verifies the beam can handle peak and dynamic loads beyond the nominal rating. This margin protects against unexpected factors like shock, misalignment, and changes in load distribution. Relying on a catalog rating without engineering review ignores the beam’s specific design and condition, which can lead to overloading or failure. If a beam is designed by the operator or used without inspection, there’s no verified design or safety check. And using a beam only for temporary tasks without stamping removes the traceable, documented rating that ensures safe use.