marking and lifting accessories - can be carried out internally?

[IronMike87]

Bye to all,
with the advent of the new year I changed work and immediately came across a small internal diatribe between different entities.

the company produces internally equipment that are marked there. for those of larger dimensions, weld directly on the flange equipment that allow the lifting.
since there is practically no standard production, and almost all equipment is custom-made for the individual customer, there is an equally considerable number of lifting accessories designed ad hoc (mainly balance sheets, to understand)

the object of the contender is this: if I certify internally with so much marking there is a machine that to be installed is necessarily raised, I could (respecting obviously all the cogent requests) emit internally the marking there for all the necessary lifting without relying on an external study?

Thank you in advance. I admit my ignorance in this matter, but it is a subject that I have never found myself facing

if then in while you have suggestions on engineering studies following the homologation process there are lifting accessories, they are well accepted (in private) since of the 3 studies that I used about 10 years ago for similar practices, 1 no longer exists and 2 have responded piques for too much work.
right for indication, the company is located in the low padana lombarda.




ps I ask vey early to the mod if I posted in the wrong section

 

[pollo]

if I understand well, even the lifting accessories are designed and built by you, which also use them: you are therefore in the best position to be the manufacturer, to which the obligation of the marking lies.
Hi.

 

[Mario SJPD]

Don't you need a timbre calculus report signed by an engineer in the lobby?

 

[IronMike87]

if I understand well, even the lifting accessories are designed and built by you, which also use them: you are therefore in the best position to be the manufacturer, to which the obligation of the marking lies.
Hi.

another painful point. there are a tot of self-built equipment that will serve to force to homologate (as it is right that it is)
for the new equipment we have "reduced" to entrust entirely the construction to third parties, but for obvious necessity the design is realized internally.

Don't you need a timbre calculus report signed by an engineer in the lobby?

from my limited knowledge of matter, I would say yes.
but if what we sell is marked there and is mandatoryly lifted for transport and installation, I would expect someone of the engineering team to certify that the welded "ears" or the gulfs are properly sized, with a lot of signature.

This is where my doubt arises...

 

[gerod]

Hi.
I would advise you to read the comment §43 of the Machinery Directive.
There's no one answer. the lifting accessory that arises and dies with the machine, is part of the machine and I consider it such. Obviously the calculation and I guarantee that the requirements of res 1 and 4 are satisfied.
Some time ago for a customer I had assessed the matter and we had concluded that it was not marked if it is an integral part of the machine.
Of course if I buy it to lift the car, then it changes everything.

 

[gerod]

Don't you need a timbre calculus report signed by an engineer in the lobby?

you must ensure structural resistance. could not serve a calculation, perhaps a static and dynamic test (it is what calls for the machine directive)

 

[gerod]

lifting accessories are regulated by a series of product technical standards, including en13155. in the norm you find references to how to perform calculations and tests.

 

[TETRASTORE]

I think qui you can find both the answers and the assistance you need.
This is the website.