ANSI MH27.1-2025, Patented Track Underhung Cranes and Monorail Systems
Price: $50.00This standard applies to underhung cranes whose end trucks operate on the lower flange of a patented-track runway section; and to carriers (trolleys) operating on single-track patented-track monorail systems, including all curves, switches, transfer devices, lift and drop sections, and associated equipment. Systems used for transporting personnel require special considerations and are not included in this standard. This standard does not apply to enclosed-track runway sections, enclosed-track monorail systems, structural-shape runway section, or structural-shape monorail systems. Refer to ANSI MH27.2 2025, Enclosed Rack Underhung Cranes and Monorail Systems for enclosed-track runway sections and enclosed-track monorail systems.Hoist(s) or carrier(s) may be supplied by the crane manufacturer, crane distributor, crane installer, or by the user. In either case, the applicable portions of ASME/ANSI B30.16, Overhead Hoists (Underhung); ASME B30.11, Monorails and Underhung Cranes and appropriate ASME HST Performance Standards apply to the hoist(s) and carrier(s). If the hoist(s) or carrier(s) are supplied by the user, the crane builder shall be provided with certified dimensional drawings with all required data including wiring diagrams, carrier collector locations and weights.This standard includes considerations for cranes and monorail equipment only. It does not include considerations or specifications for the design of the building, the design of supporting structure, electrical power supply, or erection.This standard applies to systems operating in normal ambient temperatures and atmospheric conditions; any other conditions require special consideration.
January 29, 2025•MMA
PUBLICATION
STANDARD
MMA
STANDARD
ANSI MH27.2-2025, Enclosed Track Underhung Cranes and Monorail Systems
Price: $50.00This standard applies to underhung cranes whose end trucks operate on the internal flange of a runway using enclosed track section; and to trolleys (carriers) operating on single-track monorail systems, including all curves, switches, transfer devices, lift and drop sections, and associated equipment. Systems used for transporting personnel require special considerations and are not included in these specifications. This standard does not apply to underhung cranes whose end trucks operate on the lower flange of a patented-track runway section. Refer to ANSI MH27.1-2025, Patented Track Underhung Cranes and Monorail Systems for patented-track runway sections and patented-track monorail systems.Hoist(s) or carrier(s) may be supplied by the crane manufacturer, crane distributor, crane installer, or by the user. In either case, the applicable portions of ASME/ANSI B30.16, Overhead Hoists (Underhung); ASME B30.17, Cranes and Monorails (With Underhung Trolley or Bridge) and appropriate ASME HST Performance Standards apply to the hoist(s) or carrier(s). If the hoist(s) or carrier(s) are supplied by the user, the crane builder shall be provided with certified dimensional drawings with all required data including wiring diagrams, carrier collector locations and weights.This standard includes considerations for cranes and monorail equipment only. It does not include considerations or specifications for the design of the building, the design of supporting structure, electrical power supply, or erection.This standard applies to systems operating in normal ambient temperatures and atmospheric conditions; any other conditions require special consideration.