• About
  • Introduction
  • News
  • History
  • Quality Assurance and Traceability
  • Assure Portal
  • Performance Ratio
  • Sling Calculator
  • Useful Links
  • Hackett Terms and Conditions
  • Website Terms & Conditions
  • Purchase Requisition Terms and Conditions
  • Corporate and Social Responsibility Policy Statement
  • Affiliations and Certificates
  • Privacy Policy
  • Cookie Policy

Product Range

• Lifting & Hoisting
  • Grade 6 cromox Products
  • Grade 6 cromox Pump Lifting Chain
  • Grade 8 Lifting Chain
  • Grade 8 Chain Fittings BSEN 1677 (Yoke)
  • Grade 8 Chain Sling WLL Chart BSEN 818-4
  • Grade 10 Lifting Chain
  • Grade 10 Chain Fittings (Yoke)
  • Grade 10 Chain Sling WLL Chart
  • HA Master Links and Quad Assemblies
  • Load Attachment Products (Yoke)
  • Lashing Equipment BS EN 12195-3
  • Manual Hoisting
  • Manual Hoisting - ATEX Hoisting Range
  • Manual Hoisting - Anti-Corrosion Products
  • Manual Hoisting Spare Parts
  • Hoisting Brochure
  • CAD Files
  • Contact Angular Swivels (Yoke)
  • Snatch Blocks (Yoke)
  • Quality Assurance & Traceability
• Offshore Products
  • Anti-Corrosion WH-PT Push Trolley
  • Anti-Corrosion WH-GT Geared Trolley
  • Anti-Corrosion Combined Chain Block and Trolleys
  • CAD Files
  • Contact Angular Swivels
  • Type Approved Shackles TA S-8059
  • DA Swivel Self Locking Hook
  • Forged Alloy Wide Body Shackle - type 809
  • HA Master Links and Quad Assemblies
  • Offshore Brochure
  • ROV Subsea Chain Block
  • ROV Equipment
  • Snatch Blocks (Yoke)
  • Spelter Wire Rope Sockets
  • SS-C4 Anti-Corrosion Chain Hoist
  • SS-L5 Topside and Subsea Lever Hoist
• Chain Products
  • Bulk Chain
  • Grade U2 - U3 Stud Link Anchor Chain
  • Security Chain
  • Chain Assemblies
  • Pump Lifting Chains
  • Lashing Equipment
  • Shackles
  • Swing Chain Components
  • Hardware
  • Fishing Components
  • Caravan Restraining Equipment
  • Forestry Equipment
  • Agricultural Equipment
• Chain Harrows
  • Mounted Harrows
  • Paddock Harrows
  • Trailed Harrows
  • Agricultural Accessories
  • Reasons for Harrowing
  • Specifications
  • History

Sling Calculator

Mobile app now available, search for Sling calculator and download for free!

William Hackett Sling Calculator is a free app that lets you configure your chain or wire rope sling by taking you through a number of steps. Once completed, the sling specification can be viewed along with a 3D image of exactly how the sling will look.

A part code for the sling is generated and a recommended retail price is given. By hitting ‘request quote’ you can have the quote emailed to yourself instantly. This key feature is great for when working on site. Once you have the app downloaded, please fill out your details in the account settings and create an account for free.

The sling calculator will take you through the following steps:

• Product selection – Choose grade 8, grade 10 or auto. If auto is selected, the app will work out the cheapest option for you based on the sling specification.
• How many legs – Select how many legs you require on your sling.
• Weight of load – Input the weight of the load to be lifted by the sling
• Headroom – Select whether headroom is restricted or not. If yes is selected, then sling rating will be 45°-60°. If no is selected, the sling will be rated from 0°-45°.
• Leg length – Do you know the nominal leg length? If yes, simply input the length. If no, use the diagram to help you and input the distance between the lifting points. The sling calculator will then work out the required leg length. (note – all sling configurations are to the full metre, therefore slings may be rounded up).
• Terminations – Select shortening device (if any) and lower termination.

You will then be given a summary page, where it will list your requirements. This is what you have inputted into the calculator. It will also give you a sling specification, this is the sling that the calculator has generated for you based on your requirements. A part code, sling description, RRP and 3D image is also visible on this page. Request quote will email your sling specification and quote to the email address inputted in account settings.

You can view old quotes by selecting ‘retrieve existing quote’ from the dashboard. You can also change your account settings from here.

Download the Sling Calculator

If you would like to integrate the sling calculator into your own website using your corporate branding, please click here to view our integration guide.