Making a winch?

[mendiplogs]

I did want a light weight portable rig, but not sure it'll work, just gonna have to bite the bullet and get either the Lewis or the portable winch. Was trying to think of a way to reduce the cost a bit as neither of the aforementioned winches are cheap

 

Hi mate a hand winch are good mate but warn do a portable winch on a metal plate but how are going to power winch and they cost loads all the best Jon

[openspaceman]

Hi Paul your right there mate about battery's better off with a hand winch thanks Jon

 

Maybe for some rufty tufty he men but having spent some minutes hauling a t16 through a carr to pull a fallen alder that was blocking a drainage ditch last week I'd opt for some fueled assistance.

 

The portawinch looks OK, is as light as the tirfor and wire but only pulls a tonne and costs £1500+VAT. if you have the work I'd consider this with a snatch block or two.

 

My colleague recently tried the alternative: he bought a 4 tonne 12V winch and mounted it on a plate, equipped with 2 95Amphour batteries it pulled 2 large trees out of the Thames but both batteries were flat by midday (and I doubt it did them any good being deep discharged). The advantage is the winch can go on a vehicle after but it needs 2 men to carry it into site and 2 trips with the batteries. It only cost £300 but would need a portable battery charger (about £400 or one could build one from an old mower and transit 65A alternator cheaper), Pulled a true 4 tonnes but very slowly.

 

I'd be tempted to go down the hydraulic route with a 4 stroke power pack.

 

by candlelight

[Coletti]

Maybe for some rufty tufty he men but having spent some minutes hauling a t16 through a carr to pull a fallen alder that was blocking a drainage ditch last week I'd opt for some fueled assistance.

 

I know that feeling, spent an entire day winching wind blown willows our of a local pond with a 5 ton turfor cause there was no access for tractor mounted winch and I swore it would never happen again haha hence considering other options. I like the look of the portable winch but would probably opt for the Lewis chainsaw winch due to its higher capacity. When considering making a winch I was looking at a 4000lb winch and either 1 or 2 110ah battery's mounted to a trolley of some description so it would be completely portable

[openspaceman]

I know that feeling, spent an entire day winching wind blown willows our of a local pond with a 5 ton tirfor cause there was no access for tractor mounted winch and I swore it would never happen again haha hence considering other options. I like the look of the portable winch but would probably opt for the Lewis chainsaw winch due to its higher capacity. When considering making a winch I was looking at a 4000lb winch and either 1 or 2 110ah battery's mounted to a trolley of some description so it would be completely portable

 

I would go for something in hand portable bits and use a wheelbarrow.

 

Lets consider what power we are using as dragging something along is force time distance =work and work per unit time is power.

 

Tirfor input power 200 Watts at best but what is the conversion efficiency, I've a feeling it's not good, say 70% gets into the load.

 

Small 4000lb winch say about 1000Watt and probably over 90% efficient.

 

 

Portable Winch 1600 Watt and similarly 90% efficient

 

Lewis winch with 60cc husky 3100 Watt similar efficiency

 

So the Lewis should do the job fastest but it costs £750 plus Vat and you need a 60cc saw.

 

I have never used or seen a Lewis or portable winch.

[cornish wood burner]

I know that feeling, spent an entire day winching wind blown willows our of a local pond with a 5 ton turfor cause there was no access for tractor mounted winch and I swore it would never happen again haha hence considering other options. I like the look of the portable winch but would probably opt for the Lewis chainsaw winch due to its higher capacity. When considering making a winch I was looking at a 4000lb winch and either 1 or 2 110ah battery's mounted to a trolley of some description so it would be completely portable

If you wanted to make a toy how about using on old westwood ride on lawn mower or similar to carry everything. May even be possible to mount the winch on it. Fit an alternator to the mower pto to charge the battery. You might get some strange looks but it might beat hauling gear by hand.

[openspaceman]

I would go for something in hand portable bits and use a wheelbarrow.

 

Lets consider what power we are using as dragging something along is force time distance =work and work per unit time is power.

 

Tirfor input power 200 Watts at best but what is the conversion efficiency, I've a feeling it's not good, say 70% gets into the load.

 

Small 4000lb winch say about 1000Watt and probably over 90% efficient.

 

 

Portable Winch 1600 Watt and similarly 90% efficient

 

Lewis winch with 60cc husky 3100 Watt similar efficiency

 

So the Lewis should do the job fastest but it costs £750 plus Vat and you need a 60cc saw.

 

I have never used or seen a Lewis or portable winch.

 

What I didn't calculate was the duration of the electric winch and 2 95 Amp-hour batteries to 50% depth of discharge, it's about 1 hour of full on pulling. I guess a chainsaw will run about 30 minutes on a full tank on load?? but a days worth of fuel only weighs 8kg

[Paul Smith]

Portawinch also make larger ones for forestry I think.

[hiluxstihl]

Chainsaw winch sounds perfect for you. Or buy my Grizzly 660 Quad,

[Brett]

Has anyone tried running a winch of a generator?

[Paul Smith]

Maybe modify a muck truck?