View Full Version : heavy duty loading ramps
weisyboy
2nd Jun 2010, 08:04 PM
i want to build a set of ramps for loading a case front end loader onto a truck.
loader weighs about 3-4ton.
where can i find out what strength or load rating RHS has.
DJ’s Timber
2nd Jun 2010, 08:24 PM
Don't f**k around building your own, just go and buy a set of the aluminium ones. If you make some out of RHS, how will you pick them up?
weisyboy
2nd Jun 2010, 08:59 PM
i dont like the aluminium ramps every set i have seen are bent.
we always used steel ramps for loading out small dozer's onto the truck. 5 -6 ton machine. sold teh truck and ramps 2 years ago or so. never had a problem lifting them.
weisyboy
2nd Jun 2010, 09:00 PM
http://www.onesteel.com/images/db_images/productspecs/dcts_hollows_mar02.pdf
page 139
am now working out size of steel needed and ramp weight.
DJ’s Timber
2nd Jun 2010, 09:05 PM
i dont like the aluminium ramps every set i have seen are bent.
That'd be cause they had cut corners by buying a set that weren't rated for loading the equipment they had in the first place.
Everyone I know of around here has Alum ramps and I haven't seen a bent pair in years, as they buy the appropriate ones to handle their machinery.
weisyboy
2nd Jun 2010, 10:29 PM
will only weight aprox 100kg to suport 4 ton easily. over a 4m ramp.
they probably don't need to be that long even.
100mm x 50mm x 2.5mm rhs 4m span can support 1800kg @ 5.56kg/m
50mm x 50mm x 1.6mm shs over 500mm span can support 3000kg @ 2.38kg/m
so if i put 2 - 100 x 50 x 2.5mm rhs 500mm apart with 50 x 50 x 1.6mm rhs every 400mm.
then they will weigh 100.86kg plus or minus each
and be able to support 5.4ton.
Reiner
3rd Jun 2010, 08:28 AM
Hey Carl
You can allways weld a flat like a 100x5 along the outside to be safe. But your calculations sound about right.
cheers
Reiner
weisyboy
3rd Jun 2010, 06:45 PM
thats not a bad idea.
iv got that tralier half made. just gotta put the hitch on and the tray on top and its done.
then i will strt on the boxes and brackets to hold everything.:2tsup:
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