ANSI B11.12 5th Edition, November 17, 2010
Machine Tools – Safety Requirements for Roll-forming and Roll-bending Machines
Includes all amendments and changes through Reaffirmation Notice , 2015
This standard specifies the safety requirements for the design, construction, operation and maintenance (including installation, dismantling, and transport) of roll-forming and roll-bending machines.
NOTE: In the context of this standard, the term “machine” used without any other qualification refers to a roll-former / roll-bender.
roll-forming machines: Roll-formers are self-contained machines normally consisting of a base, chassis, stand, transmission drive, electrical system, tooling and lubrication system, which are capable of continuous lineal forming of material progressively through one or more sets of rotating dies or rolls and associated tooling to achieve a predetermined configuration (see Figures 1 and 2, Annex A).
roll-bending machines: Roll-benders are self-contained machines normally consisting of a base, chassis, transmission drive, electrical system, dies, or rolls, which are capable of producing a bend across the width of flat or preformed material by means of one or more rotating dies or rolls and other tooling to achieve a predetermined configuration (see Figures 3 and 4, Annex A).
The requirements of this standard apply to those singlepurpose or multipurpose powered machines similar in construction and function to roll-forming and roll-bending machines or portions thereof, such as, but not limited to: Roll-bending machines:
- beading machines;
- carando rolls;
- combination rotary machines;
- crimping machines;
- curling machines;
- flanging machines;
- four-roll-bending machines;