Technical guides
The references we got tired of explaining on the phone
Written for the people who actually specify and inspect this equipment: purchasers comparing options, safety leads building an inspection programme, and supervisors who need a straight answer about what a regulation requires.
Every guide leads with the answer, states facts against the standard they come from, and says plainly where a duty sits with the employer rather than the supplier. No gated content and no registration.
Compliance & regulation
Compliance & regulation
Specification
Specification
Working load limit and sling angle: the arithmetic that catches people out
Working load limit is the maximum load a sling may carry in the configuration it was rated for. For a multi-leg sling, the rating assumes a specific angle, normally ...
3 minute read|5 questions answered
Chain grades explained: 70, 80, 100 and 120
Grade 70 is a transport chain for towing and load securement and is not rated for overhead lifting. Grades 80, 100 and 120 are alloy lifting chains. Grade 100 carrie...
3 minute read|5 questions answered
Inspection & testing
Inspection & testing
Proof testing explained: what it is, what it is not, and what the certificate means
Proof testing is a non-destructive load test applied to a finished lifting assembly before it ships, at a multiple of its working load limit. For alloy chain slings ...
3 minute read|5 questions answered
Sling inspection: what to check, when, and when to remove from service
Slings are inspected at three levels: visually before every use by the person rigging, periodically by a competent person on a documented schedule, and immediately w...
3 minute read|5 questions answered
Printable references
Charts and checklists for the yard
Working load limit charts, sling inspection checklists and the Ontario documentation checklist, formatted to print and laminate.
Rather ask a person?
Specification questions are usually faster answered against your actual application than from a general reference. Send the load, the geometry and what failed last time, and we will specify against it.