winch and line pull

Ive been offered a telehandler mounted winch (no anchor) with a 5tonne line pull. I am trying to work out if this is sufficient for my needs, by comparing it to the pull from a tractor.

I seem to remember once hearing that in more or less ideal conditions a 4wd tractor has a line pull of approx its own weight ?

If so I guess a 130hp tractor would weigh about 5tonnes, so a 5 tonne winch would have the pull of a 130hp tractor say on concrete. Does this sound right ? If so, Im guessing I need a 10tonne one. Not interested in snatch blocks etc
 

reb1952

Member
Location
Worcestershire
Coefficient of friction on dry concrete is around 0.8 so a 5 ton tractor would be more like 4 ton pull. On soil this can be a lot lower. This also drops if its pulling something high up e.g. rope attached halfway up a tree, as the resulting forces try to lift the vehicle up.

What sort of winch is it? The maximum line pull quoted on drum winches is when its down to the bottom layer of rope on the drum. As it winds in and the layers build up the line pull drops. If you want to achieve the full line pull then you will need some form of anchor to stop it just dragging the handler forwards, especially if you get a 10 ton winch.
 

grumpy

Member
Location
Fife
well if your wanting to pull out a bogged tractor well most tractors cant even get the slack out of a chain never mind pull a stuck one out.so 5 ton winch would beat a tractor every time.
 
well if your wanting to pull out a bogged tractor well most tractors cant even get the slack out of a chain never mind pull a stuck one out.so 5 ton winch would beat a tractor every time.
this is what I'm thinking, a 5tonne pull is a reasonable amount I would say and could equate to 2 medium to large tractors on wet ground?
 

Dukes Fit

Member
Location
Aberdeenshire
I had the very same thoughts a couple of months ago. I found a 4x4 website that gave some excellent formulas/examples that gave the required line pull for bogged vehicles depending on slope gradient etc.

A lot of it is to do with rolling resistance of whay you are trying to pull. I based my calculations upon a laden grain trailer/laden tanker (when does a tractor ever get stuck by itself?) and figured a 10t winch was the minimum

I'm assuming you're looking at the refurbed ones the guy makes for telehandlers, tractors and skid mounted winches?
 

Cooper3075

Member
Location
North Derbyshire
We have a timber winch for the 3 point links pro powered think its only 5-6 Ton but its amazing what it will pull its pulled bogged tractors out on the moor in peat and pulled plenty of trees over when felling and dragged them 100 meters out of rivers ect
Without the blade down it will drag my caseih 956 about!
 

Mursal

Member
An old friend that is sadly no longer with us, spent his working life driving recovery trucks for Leyland or at that time AEC. He always recommended to use snatch blocks to reduce wire speed and increase pulling power.
But, it takes longer to setup .........
 

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World Food Day: NFU Cymru celebrates Welsh food producers at the Senedd

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Written by Rachel Martin

NFU Cymru members and Assembly Members have been celebrating the role that Welsh farmers play in producing nutritious, high quality, safe affordable food during an event at the Senedd today on World Food Day (October 16).

The lunchtime event, which was sponsored by Llyr Gruffydd AM, included a special menu of fine Welsh produce.

Speaking at the event, NFU Cymru...
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