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-   -   Scissor lift (http://www.offroadfabnet.com/forums/showthread.php?t=11666)

Nutty4x4 01-08-2017 10:26 PM

Scissor lift
 
Hey guys/gals, going to do a dump box on one of my trucks after I finish my wheeler I swear! Anyhow I've looked at scissor lifts and what I want to know if that is really the best way to package a hydraulic dump system? Seems to me a huge strain on the pivots from how they push on the top bars and not at the pivot with the ram oriented differently for a heavy load. Am I overthinking this? As I see a lot of dump trailers manufactured this way, just don't want to waste material if there is a better way. End goal is to have a trap door in the dump box to have rails for a 5th wheel connected to the frame as you should. The gears in my head are turning and thought maybe someone here may know. Thanks!

deaner 01-08-2017 11:03 PM

Some drawings or pics would help.

Nutty4x4 01-09-2017 10:17 AM

http://i671.photobucket.com/albums/v...pso6ory0h7.jpg


Now isn't the way the ram is going to stress the pivots due to leverage applied with a load? and would you get more lift capacity pushing on the pivot where red arrow is?
If that leverage is nothing to worry about I will carry on just thought there would be a better way. Thanks!

350 Vortec 01-09-2017 01:55 PM

Why not just use a multistage ram?over here a scissors or linkage type tipper is really only used when tipping body needs to be kept as rigid as possible when tipped,site or offroad tippers mostly,otherwise for small ish bodies it's multistage underbody ram mounted upright ,seems a far simpler way to go for you ?

350 Vortec 01-09-2017 02:00 PM

http://m.ebay.co.uk/itm/tipping-ram-...257Ciid%253A19 Something like this

Dqracer 01-09-2017 07:26 PM

the load is split over 5 points, the ram cylinder base, the ram, the dump box hinge, the scissor pivot, and the scissor to box pivot , so its not as bad as imagined ..

stock93 01-11-2017 10:18 PM

Properly built, they don't have problems with overloading the pivots.


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