ASME BTH-1 specifies design calculations for different types of loading of a lifting device including tension, compression, flexure, shear and combined loading of beams. 4 Heavy Lift Challenges in Power Generation Environments1.5 Hours | Jim Yates, Barnhart presents on 4 heavy lift challenges in power generation environments. All loads to be lifted or moved must be assessed for weight, stability and rigging points. [] ASME B30.20 & BTH-1: Introduction to Below the Hook Design []. ITI conducts a variety of crane training courses that support end-users from operators to inspectors, and assembly/disassembly directors on all crane types including mobile (all variations), overhead, articulating boom, pedestal, and tower. In response, a large below-the-hook-lifting devices market has grown supporting projects with some exceptional solutions (see Modulift, Liftmax, Caldwell, Tandemloc. Save my name, email, and website in this browser for the next time I comment. Providing endorsement service for lifting equipment structure, spreader beam, lifting bar & etc; Calculation / Submission / Other. 1. beam calculator free online shear and moment diagrams. Spreader Bar Lifting Device Calculations And Design To Lifting Beams And Spreaders Spreader Beam Design Spreheet Spreader Bar Lifting Device Calculations And Design Capacity Of A Spreader Beam Ox Heavy Lifting Equipment Two Point Hook Spreader Bar Lift Spreheet Boat Design Spreader Beam Design Spreheet A Review On Lifting Beams In the slide below, Duerr explains that if the strength of the material and the load's weight was known "exactly", a known design factor would be a fitting, practical solution for our project. DLH online is proud to offer our customers a diverse range of reliable, efficient, and high-quality spreader bars, spreader beams, and lifting equipment from leading brands, at competitive prices . A design report with the necessary padeye design calculations and lift point design calculations The design calculation will be the basis for shackle and lifting set sizing, design, testing issued for. 5. Universal provide one tone spreader bar which is in stock and available worldwide via Universal engineering distributors and rental partners for any lifting equipments in a cost effective manner. Train, assess, and qualify your crane operators more efficiently and authentically than ever. All rights reserved. Painting Brick Fireplace White| Modify Trading calculations 6 days left. They can be found at our store. Phone support is available at 800-727-6355. PadEye Calculator Shackle Compatibility Amp Design. AS 4991 - lifting devices (Section 12) gives 2 methods to certify lifting equipment as detailed below: After establishing the style and capacity required of the lifting beam, the Design Category and Service Class must be confirmed, according to ASME BTH-1. Spreader Bar Lifting Device Calculations And Design - manufacturer, factory, supplier from China (Total 12 Products for Spreader Bar Lifting Device Calculations And Design) Built To Last: OUCO'S Marine Cranes With High-Wear-Resistant Steel Plates OUCO Customised 20' And 40' Semi-Automatic Container Spreader Spreader bars, lifting beams, and other below-the-hook lifting devices are classified based on the frequency and capacity of lifts that are required of the device. Installation contractors advertise engineering feats accomplished by At first, Im fan club your product for lifting lug. The spreader bar increases load stability by raising the suspension point away from the center of gravity. Sparta's approach to optimizing the spreader bar design (otherwise known as lifting bar or lifting beam) is an iterative process. ITIs Help Center is a robust support tool providing detailed articles on all our products and services. They understand the tasks and issue you face everyday and teach the skills you need to succeed. The bar redirects compressive load away from the suspended load and diverts it into the spreader bar. / Malvaux > Non class > spreader beam design spreadsheet / 16.02.22 spreader beam design spreadsheet . ITI offers live product demos, technical lectures, and industry insights that can be viewed live and recorded. (A) STRENGTH DESIGN - Design for FLEXURAL Bending Stress **** Selecting the Section initially based on this ****. In cell 'Adjustable Cross Beam'!$E$5:$F$5 the cell formula contains a link to another file ='C:\Users\MHaise\Downloads\[189537383-Spreader-Beam-BLOCK-E (1).xls]Longitudinal Beam'!L44 I assume it is safe to break this link? The final document package can be used on the client's intra-web and in printed form to provide guidance for employees involved in standard and critical lifting activities. Bent bar hooks allow for 2" wide sling eyes lifting lug calculation asme mechanical code issues. The design category and service class establish the requirements for safety factor for strength and fatigue that will be used in the remainder of the design calculations for the lifting device. Affordable Apartments Royal Oak, At ITI, we exist to serve and learn, every day. by mobile, EU +44 113 8152220 Under the broader category of Rigging, courses are further classified into the following sub-categories: ITI Lift Planning and Management Training is applicable to a wide range of personnel, from health and safety professionals to tradesmen in the field. ITI online courses are ideal for small groups that want to standardize training but dont have the time or budget to dedicate to live training. Labelling is per ASME B30.20. . Today's 21,000+ jobs in Marseille, Provence-Alpes-Cte d'Azur, France. lifting lugs design calculation excel pdfsdocuments2 com. Our lifting spreader beams and bars allow you to turn a crane hook into a multiple point lifting tool. If you are looking for more information on BTH-1, feel free to contact us, or you can wait for future articles that will discuss applying BTH-1 to design of lifting beams and spreader bars in greater detail. They're "below-the-hook" lifting devices that stabilize and support loads, and both are used to keep slings perpendicular to the horizon while moving. The spreader experiences the following stresses: Fig 6: Bending moment due to offset of force from centerline. Below-the-hook lifting devices such as spreader bars and lifting beams must be designed in accordance with ASME BTH-1 and are to be manufactured and used in accordance with requirements of ASME B30.20 which specifies requirements for marking, inspection, construction and operation. The exemplar calculations shown are for a load of 30 tons having a span of 20 ft to be lifted using a spreader bar of cylindrical pipe, made of standard ASTM A53B carbon steel. (Reduced head room). Lifting beams, on the other hand, are designed to take bending loads. The more accurately these load characteristicsare known, the lower the design factor can be and still provide adequate safety. Explicacin sencilla, prctica y de aplicacin directa. Also the named cells lug_Fu and Lug_FY appear to be incorrectly used giving #VALUE errors on Sheet 'Lift Beam Analysis'. A 251. SPARTA ENGINEERING is a leader in mechanical design for manufacturing. Calculation ReferenceLifting Design Structural Steel Safe Working Load Design, US +1 617 5008224 Wake County Farmers Market, T (417) 555-1212 the Checklist for Lift Planning and Weather Factors exhibits, found in the Lifting Safety Subject Area, as tools for evaluating the area of operation and potential. Models include FB. Lofts For In Ma| The stiffer the arms, the less bend you need. Spreader beams are designed to convert lifting loads into pure compressive forces and also spread apart the legs of a sling. The difference lies in the way the forces are transmitted. Corrugated Plastic Roofing Sheets B Q| These lessons are two of forty included in theRigging, Equipment & ApplicationsCoursetaught by Duerr, Larry Means (Means Engineering), Mike Parnell (ITI), Skip Ohman (The Crosby Group), and Keith Anderson (Bechtel). .. Any recommendations? Working closely with world class manufacturers, our engineers are highly trained to produce a product that complements a shop's manufacturing capabilities. STRESSES BASED ON AISC-ASD 2. Fundamentals of Rigging Engineeringis ideal for lift planners, rigging engineers, and other key personnel who plan and execute crane and rigging activities. . Spreader Bar Lifting Device Calculations and Design Spreader Beam Design Spreadsheet (www.thenavalarch.com) - YouTube Design and verification of lifting lugs - mec Engineering Spreadsheets Your figure is show angle made with vertical. This training module for the US&R Sructural Collapse Technician use tag lines. We check the capacity of a Spreader Beam SB-170 that supports up to 170 tons and check that it reaches that capacity at 20m but only at 20.. 2. Lifting beams are an engineered product designed and made to suit the load to be lifted, Hoist UK's design team is available to assess and advise on your specific requirements and can provide a lifting beam solution for your needs. Designing and Manufacturing Modular Spreader Beam Systems for a Cost-Effective, Safe Lift. Mr. Duerr has authored and released a book titled Telescopic Hydraulic Gantry Systems, and is preparing another work on mobile crane load spreading. use tag lines. Calculating the Weight of a Load. Step 1: Determine the Volume of the Load. Design and verification of lifting lugs capacity of a spreader beam ox design excel marine ering pte ltd spreader beam calc txt. Toolbox Talks are an effective way to refresh workers safety and health knowledge as well as to promote safety culture daily. These items are discussed in more detail below. Under the broader category of Cranes, courses are further classified into the following sub-categories: ITI has been an innovator and pioneer in rigging training for nearly 30 years and conducts more rigging training for corporate clients in North America than any other provider due to its expertise, size of training staff, and deep course curriculum. I think Cell B141 should read New York, 1989 instead of New Yark, 1959. 135613248 lifting lug slideshare net. The ITI Learning Hub delivers a robust curated library of over two thousand on-demand courses to fit the needs of your diverse load handling workforce. We work closely with you to make sure that the course is delivered to meet the site and job specific requirements at your site. I have made the corrections to the spreadsheet Steve and uploaded a new version. Industry Associations and Certification Organizations, Full Virtual Instructor-Led Training Schedule, 10 Audit Points for Your Crane & Rigging Operations - An HSE Perspective, 50 Important Crane & Rigging Resources for Your Library, 4 Heavy Lift Challenges in Power Generation Environments. (Available here). It is NOT replace . Do you have any helpful hints for aspiring writers? Define all required inputs as above. Spreader bar lifting device calculations and design pdf Spreader bar lifting device calculations and design excel. If not, the object will experience a tilt during lifting which is not desirable. by Skype or Content from GKS, Hydra-Slide, LGH, Verton, and more! The hydorcarbon recovery course of involves injecting cooled or liquified carbon dioxide into underground wells to assist in extracting oil and pure gasoline. Modular beam configuration with interchangeable components. Spreader Bar Design Process A guide to designing lifting April 19th, 2019 - Sparta s approach to optimizing the spreader bar design otherwise known as lifting bar or lifting beam is an iterative process Variations in the design of the multi lift spreader bar evolve over a period of time as requirements and technology change Update payment for dental access. Exam administration with Certified Practical Examiners (ITI Instructors) is also offered. CAD design for lifting beams & spreader bars from DLH Online. ITI Safety Courses includes content originally developed by partner organization that can be further classified into the following sub-categories: ITI has curated a library of eLearning content from industry leading training companies and original equipment manufacturers, and associations, to create the largest library of crane and rigging specific training content in one place. d= = = 12.07 in. Each of these models are Telescopic Spreader Beams rated at 60, 90 and 120 degree Sling . Sep 30, 2019 - Spreader Bar Lifting Device Calculations and Design - ExcelCalcs helping you make and share engineering calculations. by mobile, (A) Design for Normal Stress (Direct Compressive Stress) **** Selecting the Section initially based on this ****, (B) Design for Elastic Stability - Transverse Buckling [1], ('C) DESIGN OF ATTACHMENTS - (a) Design of eye bracket for strength, (a-i) Design of eye bracket for tensile strength - FAILURE MODE - 1 (allowable tensile stress is governing), (a-ii) Design of eye bracket for bearing/crushing strength - FAILURE MODE -2 (80% of the yield stress is governing), (a-iii) Design of eye bracket for tearing strength - FAILURE MODE - 3 (50% of the yield stress is governing), (a-iv) Design of eye bracket for out-of plane buckling - FAILURE MODE - 4 (as per David T. Ricker [2]), (a-v) Design of shackle ring for shearing strength - FAILURE MODE - 5 (50% of the yield stress is governing), (b) Design of weld joint of the eye-bracket with the spreader beam for shear strength (50% of the allowable stress is governing), DESIGN OF ADJUSTABLE SPREADER LIFTING BEAM of Standard Profile "HEB Series", Geometry of Lifting at the each end of the HOLLOW PIPE Spreader Beam, Solved using the equations of Static Equillibrium, (A) STRENGTH DESIGN - Design for FLEXURAL Bending Stress **** Selecting the Section initially based on this ****, (B) STIFFNESS DESIGN - Design for DEFLECTION, (C) DESIGN OF ATTACHMENTS - (a) Design of adjustable (CG location variations) suspension bracket for strength, (a-i) Design of lugs on the bracket for tensile strength - FAILURE MODE - 1 (allowable tensile stress is governing), (a-ii) Design of lugs on the bracket for bearing/crushing strength - FAILURE MODE -2 (80% of the yield stress is governing), (a-iii) Design of lug on the bracket for tearing strength - FAILURE MODE - 3 (50% of the yield stress is governing), (a-iv) Design of lug on the bracket for out-of plane buckling - FAILURE MODE - 4 (as per David T. Ricker [1]), (a-v) Design of pin for shearing strength - FAILURE MODE - 5 (50% of the yield stress of the pin is governing), (b) Design of weld joint of the lug with other plates for shear strength (50% of allowable stress is governing), (c) Design of end plates of the adjustable bracket for tensile strength (allowable tensile stress is governing), (d) Design of weld joint for the bottom plate of the adjustable bracket for shear strength (50% of allowable tensile stress is governing), (D) DESIGN OF ATTACHMENTS - (a) Design of adjustable (Span variations) suspension bracket for strength, (d) Design of weld joint for the top plate of the adjustable bracket for shear strength (allowable tensile stress is governing), (E) DESIGN OF ATTACHMENTS - (a) Design of fixed suspension bracket for strength, "RIGGING CALCULATION For Inshore Lifting". Browse our inventory of new and used HYDRA-FOLD AUGER INC. document.getElementById( "ak_js" ).setAttribute( "value", ( new Date() ).getTime() ); info@basepointengineering.com Spreader Beam Design Calculation Xls. Findings can be used to modify rigging practices or in preparation for litigation. 1 A typical lifting beam. Spreader bars can be made in a variety of lengths, connection types, & capacities. It is a very common operation in present-day by Rahul Kanotra | Aug 3, 2019 | Lifting Operations, Marine Operations. BTH-1 addresses design requirements including: While BTH-1 is broad in its coverage of design requirements for below-the-hook lifting devices, only portions of the design standard are applicable to spreader bars and lifting beams, in particular beam classification and the structural design requirements. Its purpose is to connect the load to the beam and beam to the crane hook with the help of lifting accessories. Proof Testing If operating in the USA, OSHA's rigging equipment regulation (29 CFR 1926.251) requires a 125% proof test for "lifting accessories". A poster with the same detailed information as the Lineman Rigger Reference Card; load factors and weight distribution, block and fairlead loading, sling capacities (wire rope, polyester round, web, and chain G-8), rigging hardware capacities, calculating load weights (materials and liquids), dead-ending poles & towers, level span, conductor weights, hand signals, treated pole weights and an . (In.) The following chart shows a comparison of a W-Beam lifting beam with lifting capacity based on simple bending stress calculations vs calculations that account for buckling per ASME BTH-1. It seem to be not correct. Spreader beams convert lifting loads into compressive forces in the beam and tensile forces in the slings. By pveng February 23rd, 2017 Uncategorized. The June 14, 2002 interpretation issued by OSHA states that lifting devices like beams and spreaders are covered by this regulation, and must be proof tested. ASME B30 & P30 Developments1.5 Hours | Mike Parnell, ITI presents on new ASME volumes, major standard updates, and interpretations. Advantages and Disadvantages of Using a Spreader Beam. If we resolve the forces on the whole beam, we get the force diagram as above. When they . spreadsheet. Spreader beam design calculation xlsBy purchasing this spreadsheet you agree to the disclaimer and terms & conditions. Disclaimer: This post is not meant to be authoritative writing on the topic presented. Also in their use of materials, so theyre typically smaller, lighter, and economic to design and manufacture than a lifting beams. Design Factors Under ASME BTH-1, two design factors exist to allow the designer to match strength to service. Paint Over Bathroom Tile| Spreader Bar Lifting Device Calculations and Design 97 Description Safe Working Load, SWL Spreading Length Safety Factor in Compression Yield stress of the Beam material Allowable Tensile Stress Elastic Modulus of the material (A) Design for Normal Stress (Direct Compressive Stress) **** Selecting the Section initially based on this **** Weve corrected the same. Fundamentals of Rigging Engineering Program. . calculations and design, design evaluation of overhead lifting lugs pdhonline com, webstructural steam beam how to, spreader bar lifting device calculations and design, lifting beam amp spreader bar design 6 quickies for rigging, structural beam deflection amp stress formula engineering, lifting beams spreader beams lift it manufacturing, Unlike lifting beams which convert vertical lifting forces into . To learn more, visitriggingengineering.comor call Christina Lanham, ITI Manager of E-Learning at 800-727-6355. Models include GRAVITY BOX AUGER. ITI offers NCCCO certification prep courses for the following programs: ITI's Industrial Safety Training Library contains over 120 topics and provides your employees with essential - and often mandated - safety skills pertaining to general health and regulatory compliance. When lifting and carrying precast elements, the lifting load has to be Lifting beams and spreaders xls lifting beam calculation rev 4 the that end user pay one time lifting beams and spreaders spreader bar design stress ysis. calculations, home strength beams spreader bar lifting device calculations and design spreader bar lifting device calculations and design this excel calculation can be downloaded by excelcalcs subscribers please login or subscribe , in this video you learn how Spreader Bar Lifting Device Calculations and Design April 9th, 2019 - Home Strength Beams Spreader Bar Lifting Device Calculations and Design Spreader Bar Lifting Device Calculations and Design This Excel calculation can be downloaded by ExcelCalcs subscribers Please login or Subscribe LEEA Guidance The Verification of Lifting Beams 1 / 6 Actual shear stress (fv) = 0.43 N/mm2 SAFE FOS = 107.4 > 1.2 D. Check for combined Axial and Bending stress Ref ASME BTH1-2005 - Clause 3 . Xls Lifting Beam Calculation Rev 4 Best Sriraj S Varier Academia Edu. Congratulations! Yes, the article did have a mistake, it should be the angle made with the vertical. Steve I am just reviewing this calculation now. The Pivot Point Calculator is used to calculate pivot points for forex (including SBI FX), forex options, futures, bonds, commodities, stocks, options and any other investment security that has a high, low and close price in any time period. (877) 240-4149. In the latest revision of BTH-1 (2017), there are three design categories, categories A, B and C, as well as five different services classes, service class 0 through 5. An Overview of ASME BTH-1 (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 . They are suspended by a crane from two slings and normally have two to four bottom slings attached for rigging to the load. 1A. Search: Spreader beam design calculation xls. Along with stress, buckling is also a critical factor in lifting beams that must be addressed in detail to ensure that the . Have a custom project? . sealed drawings and calculation sets like the ones shown below. The rescuer's knowledge of rigging equipment and its basic application will enhance the ability of the heavy equipment to perform. Drip Shield Gantry Mechanical Equipment Envelope Calculation 800-MQC-HEE0-00100-000-00B Rationale: The 10 % factor of safety is used to account for additional components (for example electrical components, electrical cabinets, cableways, cameras, etc. We Universal engineering are the supreme supplier of Lifting beams especially spreader beams, Lifting slings and shackles , crane lifting and other hook lifting equipments all over the UAE. According to BTH-1 calculations, the short beam can be loaded to full yield strength (accounting for safety factors), but as the beam length (or lifting spread) increases, the stress reaches an inflection point where the allowable bending stress starts to drop off. At Universal Engineering, no client would be having a void of worry as we cover everything from start to finish. The bending calculations include bar weight, but do not account for shear stresses. 15. do not lift outside the crane capacity chart. ITI endorses the national certification program offered by the National Commission for the Certification of Crane Operators (NCCCO) and provides training to prepare candidates for NCCCO written and practical exams. The calculation includes the weight of the beam. Do you have an idea for a topic that you would like us to cover? layout 1r AWa BW Industries shoring application such as. Depending on your jurisdiction, there are design considerations, guidelines, and regulations. by Team TheNavalArch | Oct 27, 2020 | Lifting Operations, Marine Operations, Maritime Industry. Concentrated moment beside the right vertical member frame formulas and calculator. 'spreader bar design process a guide to designing lifting june 22nd, 2018 - rating plates and b30 20 below the hook lifting devices heavy tand tri share the post spreader bar design process - a guide to designing lifting and spreader''Rod Lifting Hook Design Calculation pdfsdocuments2 com 963kN := 60 Spreader bar lifting device calculations and design.) Save my name, email, and website in this browser for the next time I comment. hbspt.cta._relativeUrls=true;hbspt.cta.load(78935, '160b9bb8-ddde-4c01-8b52-10a26747345d', {"useNewLoader":"true","region":"na1"}); Lifting beams and spreader bars have become an integral part of complex crane, rigging, and lifting activities. Spreader Bar Lifting Device Calculations and Design. 3. The design category and service class are discussed in more detail in the article:Introduction to Below the Hook Design. ENGINEERING DESIGN FILE EDF Page Of8. Decorate An Office On A Low Budget| Related Gallery: There was an error submitting your subscription. ITI delivers the most robust Crane Simulation library in the world. We prioritize our lifting equipment services like beam lifting equipment , spreader bar lifting equipment, spreader beam, lift beam and four point spreader lift beam (spreader bar for lifting and load spreader). ASME BTH-1 specifies design calculations for different types of loading of a lifting device including tension, compression, flexure, shear and combined loading of beams. Together with our manufactured slings and rigging hardware, Liftmax lifting devices can make any lift possible. Strut Drop Link End Unit Sub-Assy Large Shackle Just like lifting beams, spreader beams are used to widen the available lifting points on rigged loads and keep lifting slings at a 90 angle relative to the horizon. Stove Top Stuffing Cerole| Because they use two lifting points instead of one singular lifting point, the weight of the load is distributed evenly across the beam. hbspt.cta._relativeUrls=true;hbspt.cta.load(78935, 'c3bace34-2a4e-4121-9c49-2156c142bd8a', {"useNewLoader":"true","region":"na1"}); Why ITI exists in the words of co-founder, Mike Parnell. LIFTCALC is an EXCEL spreadsheet that was created to assist individuals that are involved with planning maintenance activities that will require rigging and lifting of equipment. Block weight = 11,880 lbs. Lifting beam vs Spreader beam. Lifting beams / Spreader beams can be designed and made for general use or as bespoke one-offs for specific lifts . by Team TheNavalArch | Aug 5, 2020 | Lifting Operations, Marine Operations | 4 comments. Step 3: Determine the Weight of Object. We use cookies to ensure that we give you the best experience on our website. This helps to avoid damage to the load, damage to rigging hardware and lifting slings, and helps keep the . Lifting should be avoided under high wind conditions. Many thanks for your feedback. ITIs Learning Strategy Assessment is designed to help our customers identify their learning and development priorities. After Mr. Duerr explains the mathematical formulas behind reliability, he emphasizes that "once a design provides a reliability of 99.9% for the given service conditions, any further increase in the design factor does nothing to improve the reliability or safety of the lifter". Spreader bars for lifting and rigging consist of a beam with two or more lifting lugs on the bottom that attach to lifting slings that attach to the load. All rights reserved. In this article, we will discuss designing a lifting beam according to ASME BTH-1. ITI Crane Technician & Maintenance curriculum covers overhead and tower cranes. In response, a large below-the-hook-lifting devices market has grown supporting projects with some exceptional solutions (see. Part 46 of Mine Safety and Health Administration (MSHA) regulations requires that new miners complete no less than 4 hours of training before they enter a mine site and that all miners take refresher training on an annual basis. Excelente material. Spreader Bar Lifting Calculations Lifting Beam Calculator April 15th, 2019 - Spreader Bar Basic calculates loadings on the spreader bar pipe slings and shackles for a wide range of lifting configurations while calculating and reporting ASME BTH 1 calculations Three options of Crosby shackle types are available to choose. Gantry Crane If you use simple beam calculations as has been mentioned the caster is the weakest link in a gantry crane Lifting . It is at this point that the desired design factor is achieved. Note: According to ASME B30.20, proof testing is only a recommendation, not a requirement. HSSLB. ITI is proud to team with partner organizations to support our custom's mission for safe and efficient material handling operations. darbury lifting lug operating document, 21721 redrock padeye evaluation 2015 09 23, www excelcalcs com aisc lifting lug, spreader bar lifting calculations lifting beam calculator, lifting lug calculation excel download, modern steel construction steel questions or comments to, program to design a plate type lifting lug v 03, a critical review The back crane is using the 3 spreader bars. The first step in developing a lifting device is to determine the lifting configuration, max lift capacity and max spread (width) that is desired. Calculation Sheet Lifting Set DNV 2 7 1 Stemar. Beam Calculator Free Online Shear and Moment Diagrams. The more accurately these load characteristicsare known, the lower the design factor can be and still provide adequate safety. The stiffer the arms, the less bend you need. Designed by Elegant Themes | Powered by WordPress. Need an optimized and cost effective design as this required to be used only for two shade structures. free, proposed design criterion for vessel lifting lugs in lieu, lug analysis mechanicalc, lifting sling load and angle calculator rigging calculator, 135613248 lifting lug slideshare net, spreader bar lifting calculations lifting beam calculator, lifting lug calcs xls excelcalcs, strength calculation of lifting eye marinewiki, weld Using one of our Modular Spreader Beams enables you to be more fl exible over a number of lifts without needing to buy a new Spreader Beam every time, our lightweight design also minimises the overall weight of the lifting equipment and the costs incurred whilst working between the hook and the load.