Lifting devices designed to this standard shall comply with asme b30. Rigging is the primary form of bth lifting devices which include but are not limited to. Proof testing unless otherwise specified on the tandemloc drawings. A belowthehook bth lifting device is classified as a device used for attaching a load to a hoist. Custom below the hook lifting devices bradley lifting. Belowthehook lifting devices standards for engineers and safety professionals worldwide asme b30.
The provisions in this standard apply to the design or modification of below the hook lifting devices. Jun 18, 2019 asme bth design of belowthehook lifting devices download as pdf ealvedesign slltellvegrooves shall be smolh and free from surface ineg. Important to understand bth standards so, what are bth devices. I hope this article clears up some of the confusion between design category and service class. Hsslb short span lifting beam plate style features this style of lifting beam is ideal for short span applications and can be utilized where headroom is limited. Compliance with requirements and criteria that may be unique to specialized industries and environments is outside of the scope of this standard. I have never seen a lifting lug that would not be classified as compact by a long shot. New standard for design of belowthehook lifting devices. In accordance with design requirements, the responsible engineer may invoke ansi n14. Asme bth1, design of below the hook lifting devices. Asme bth1 design of belowthehook lifting devices link yes, you should be able to calculate the capacity of the lifting devices. Commonly referred to as a lifter, a below the hook lifting device attaches a load to a hoist.
Alllift systems offers below the hook lifting devices from the nations top manufacturers including cady, caldwell, crosby, columbus mckinnon cm, terrier, and many more. Engineering matters below the hook lifting devices below the hook lifters are those helpful pieces of equipment that provide a connection point between the crane and the load being lifted. Chapter 41 requirements for belowthehook lifting devices, slings, and rigging hardware and accessories. Design of below the hook lifting devices an american national standard three park avenue new york, ny 10016 usa. Belowthehook lifting devices july 2017 draft revisions.
These devices can come in several forms, including structural and mechanical lifting devices, vacuum lifting devices, close proximity operated lifting magnets, remotely operated lifting. Due to changes in design, advancement in techniques, and general interest of labor and industry in safety, the sectional committee, under the joint sponsorship of asme and the bureau of yards. Asme bth1 design of belowthehook lifting devices, 2017. In the 2010 edition, maintenance was made mandatory, definitions. Pdf asme bth 1 2017 design of below the hook lifting. Lifting magnet design abstract show below hide below describes minimum structural and mechanical design and electrical component selection criteria for asme b30. Com pliance with requirements and criteria that may be 14. What makes my belowthehook lifting device osha compliant. Pdf design of belowthehook lifting devices sasikumar.
While all below the hook lifting equipment manufactured by bradley lifting is custom engineered for a specific application, a number of the lifters may be categorized into the product groupings listed below. Design of belowthehook lifting devices from sai global. A below the hook bth lifting device is classified as a device used for attaching a load to a hoist. We can help you maximize your cranes payload with lower tare weights because we have proven designs for durable, heavy duty material handling equipment. The provisions in this standard apply to the design or modification of belowthehook lifting devices. Design of below hook lifting devices structural engineering.
Design of below the hook lifting devices bth1 asme on. Asme bth1 2014 design of belowthehook lifting devices isbn. Special custom design grabs, hooks, clamps, or other lifting accessories, for such units as modular panels, prefabricated structures and similar materials, shall be marked to indicate the safe working. Asme bth1 designates design criteria for below the hook lifting devices asme b30. Apr 16, 2019 asme bth12008 design of below the hook lifting devices.
Asme bth12011 revision of asme bth12008 design of belowthehook lifting devices an american national standard three park avenue new york, ny 10016 usa. Jun 29, 2019 asme bth12008 design of below the hook lifting devices. In the 2010 edition, maintenance was made mandatory, definitions were revised and other changes were made to improve clarity. Requirements for belowthehook lifting devices, slings. Belowthehook lifting device engineering note cover page. Instructions should include, but not limited to, the following. This the 20 revision add eds requirements for personnel competence, operating controls. Fulcrum lifting companies follow the guidelines set forth in the asme b30. Aug 03, 2007 the design, manufacture, testing, inspection, and use of below the hook lifting devices are standardized in the united states by asme b30. Bth1 design of belowthehook lifting devices 2017 asme. The new edition, released as asme bth12017 design of belowthehook lifting devices, updates and supersedes the 2014 version of the standard, continuing to serve as a guide for designers, manufacturers, purchasers, and users of belowthehook lifting devices.
An overview of asme bth1 spreader bars and lifting beams when planning to design lifting beams or any other belowthehook lifting devices, there are many aspects that must be considered beyond finding materials that meets a few basic engineering calculations. In your case, i would see the b distance as the straight vertical edge to the base center of hole to base weld line. Lifting tongs basic tong configurations this 300pound capacity model horizontal lifting plane. The asme bth1 standard for the design of below the hook lifting devices has been revised. Their thickness is generally driven by bearing checks on the pin hole that make this plate much much stockier than typical structural elements. Requirements for belowthehook lifting devices, slings, and. Compliance with requirements and criteria that may be unique to specialized industries and environments is outside the scope of this standard. While all belowthehook lifting equipment manufactured by bradley lifting is custom engineered for a specific application, a number of the lifters may be categorized into the product groupings listed below. The operator shall be instructed in the use of the device by a designated person. Mar 18, 2019 asme bth design of belowthehook lifting devices download as pdf ealvedesign slltellvegrooves shall be smolh and free from surface ineg. This standard will become effective 1 year after the date of issuance. Along with stress, buckling is also a critical factor in lifting beams that must be addressed in detail to ensure that the. The asme bth1 standard for the design of belowthehook lifting devices has been revised. In the belowthehook lifting world there are two main standards that you should familiarize yourself with if youre purchasing or designing an.
Below the hook lifting devices osha says very little about below the hook lifting devices in any standard. October 29, 2014 the next edition of this standard is scheduled for publication in 2017. Supplied with a pair of shackles and one standard spread. All belowthehook lifting devices shall be designed for specific rated loads and load stresses as they affect the components of the lifting device. Note that the capacity is dependent on the service class, predictability of the loads applied, and whether severe environmental conditions are present. All below the hook lifting devices shall be designed for specific rated loads and load stresses as they affect the components of the lifting device. Asme bth1 designates design criteria for belowthehook lifting devices asme b30. Below the hook lifting devices can be anything below the hook that provide a connection between the. Belowthehook lifting equipment avon engineering designs and manufactures lifting solutions.
Draft april 2014 bth 1 20xx proposed revision of asme bth. Below the hook lifting devices was first published in 1985, new editions were published in 1993, 1999, 2003. J17514 asme codes and standards asme is the leading international developer of codes and standards associated with the. Mar 16, 2018 an overview of asme bth1 spreader bars and lifting beams when planning to design lifting beams or any other below the hook lifting devices, there are many aspects that must be considered beyond finding materials that meets a few basic engineering calculations. Asme bth design of below the hook lifting devices reduced download as pdf file. Asme bth12014 revision of asme bth12011 design of belowthehook lifting devices an american national standard two park avenue new york, ny 10016 usa. An overview of asme bth1 spreader bars and lifting beams when planning to design lifting beams or any other below the hook lifting devices, there are many aspects that must be considered beyond finding materials that meets a few basic engineering calculations. Mar 15, 2017 lifting devices designed to this standard shall comply with asme b30. Jul 25, 2019 asme bth design of belowthehook lifting devices download as pdf ealvedesign slltellvegrooves shall be smolh and free from surface ineg. Each tong is equipped with our automatic latching device that provides safe and reliable operation of the clamping mechanism. Qualifications for operators of belowthehook lifting devices are as follows. Design criteria for designing below the hook lifting devices. Design of below the hook lifting devices an american national standard two park avenue new york, ny 10016 usa.
Note that the capacity is dependent on the service class, predictability of the loads applied, and whether severe environmental conditions are. Selecting the proper below the hook lifter for the job and knowing its limitations is critical. Engineering matters below the hook lifting devices. Within each type of lifting device are many variations that show the breadth and depth of our experience. Design of belowthehook lifting devices an american national standard three park avenue new york, ny 10016 usa. Pdf asme bth 1 2017 design of below the hook lifting devices.
They can be structural mechanical lifting devices, vacuum lifters, magnets, and grapples. Asme bth design of belowthehook lifting devices download as pdf ealvedesign slltellvegrooves shall be smolh and free from surface ineg. Our goal is to design lifting equipment that increases your productivity and provides your personnel with a safe method of handling your product. Design of belowthehook lifting devices an american national standard two park avenue new york, ny 10016 usa. They are designed to make your work easier but, like any good rigging. Group i structural and mechanical lifting devices check one x group ii vacuum lifting devices group iii magnets, close proximity operated group iv magnets, remote operated. Chapter 41 requirements for below the hook lifting devices, slings, and rigging hardware and accessories. Below the hook lifting devices cincinnati crane and hoist.
Bth1 provides minimum structural and mechanical design and electrical component. Sep, 2016 important to understand bth standards so, what are bth devices. Red flag this post please let us know here why this post is inappropriate. Asme bth12008 design of belowthehook lifting devices. All below the hook lifting devices are manufactured in accordance with asme b30. They are structural and mechanical lifting devices spreader beams, lifting beams, chooks, plate clamps, pallet lifters, coil grabs, etc. The design, manufacture, testing, inspection, and use of belowthehook lifting devices are standardized in the united states by asme b30. Lifting tongs basic tong configurations horizontal lifting plane. Mar 23, 2017 the new edition, released as asme bth12017 design of belowthehook lifting devices, updates and supersedes the 2014 version of the standard, continuing to serve as a guide for designers, manufacturers, purchasers, and users of belowthehook lifting devices. The new edition, released as asme bth12017 design of below the hook lifting devices, updates and supersedes the 2014 version of the standard, continuing to serve as a guide for designers, manufacturers, purchasers, and users of below the hook lifting devices.
January 25, 2012 the next edition of this standard is scheduled for publication in 2014. Asme bth12017 design of belowthehook lifting devices is for b30. This chapter outlines the requirements for designing, fabricating, operating, testing, inspecting and documenting of belowthehook lifting devices fabricated in. We design and engineer full belowthehook lifting systems, including automatic, hydraulic, pneumatic and motorized lifting equipment, jhooks, spreader beams, chooks, and mobile lifters.
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