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ASME B30.20-2025

Below-the-Hook Lifting Devices
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ASME B30.20-2025

Below-the-Hook Lifting Devices

PUBLISH DATE 2025
PAGES 74
ASME B30.20-2025

Purpose of ASME B30.20-2025

The main purpose of ASME B30.20 is to establish essential safety criteria for devices that fall between the hoist hook and the load, ensuring the integrity of the connection and the safe handling of the material. This standard focuses on components that are engineered and fabricated for specific lifting tasks where traditional slings or hooks alone are inadequate or inefficient.

The standard covers the technical provisions for the:

  • Marking, Construction, and Installation of these specialized devices.
  • Inspection, Testing, Maintenance, and Operation to guarantee continued safe use.

The 2025 revision notably clarified and expanded requirements for Load Containing Lifting Devices (like crane skip pans or certain material bins), emphasizing that these containers must be properly rated and constructed to maintain the safety chain from hook to load.


What is it Used For?

ASME B30.20-2025 is essential for manufacturers, owners, operators, and maintenance personnel of these highly specialized lifting attachments. It is used in construction, manufacturing, and shipping industries where unique or large objects must be lifted. The standard covers six main types of devices:

  • Structural and Mechanical Lifting Devices: Such as spreader beams (which prevent crushing loads) and lifting beams.
  • Vacuum Lifting Devices: Used for lifting large, flat, non-porous objects like glass, metal plates, or concrete slabs.
  • Lifting Magnets: Both close proximity and remotely operated magnets for handling ferrous materials.
  • Scrap and Material-Handling Grapples: For specific bulk handling applications.
  • Clamps: Used for positioning and anchoring during lifting.

Users must typically apply this standard in conjunction with ASME BTH-1 (Design of Below-the-Hook Lifting Devices), which provides the specific structural and mechanical design criteria that B30.20 enforces for manufacturing and safe operation.

SDO ASME: American Society of Mechanical Engineers
Document Number B30.20
Publication Date April 30, 2025
Language en - English
Page Count 74
Revision Level
Supercedes
Committee
Publish Date Document Id Type View
April 30, 2025 ASME B30.20-2025 Revision