Hi As a safety device, a maintenance team have welded a trestle of steel tubes in case of failure of parking legs. I need to get a SWL marked onto these and the companies I have contacted to do this have not responded. Does anyone know a company that could do this, or if there is another way a SWL could be calculated? Ian

From an engineers perspective I would have thought the process should have been ascertain the required capacity, have the item designed taking this into account and to provide sufficient strength and stability and then have them manufactured in accordance with the design. Markings could then be applied accordingly. Retrospective marking is likely to be applied by load testing the item and many lifting equipment suppliers will provide this service.

Hi Thanks for your replies. Unfortunately I inherited these devices, made in house. I have had problems getting a reply from lifting equipment suppliers (telephone, email and contact via website). Some good stuff for me to bear in mind. Bob, he tressle will only be used the once, as it is a leg failure safety device. Ian

Ian I commend your maintenance departments ingenuity but it sound as if you are unsure if the faith they put in this devise may be unfounded. I would have thought to have the tests etc others have described here for a 1 off bit of kit may be a bit expensive. Have you considered purchasing axle stands that come with all the required checks undertaken? Quicker option and possibly cheaper in the long run?

Hi, Its not actually all that unusual for the need for engineers to need to produce bespoke supports. A lot of companies can produce a SWL for you through simple calculations and without the need for destructive testing. I have used CCS and Northern Jacks in the past. What part of the country are you in?

Thanks Phil. Looks like I might have a SWL coming through from a description and photograph sent out. If this does not happen then I will try your two recommendations. Ian