winch size

Bullbars, roof racks, suspensions and other accessories relating to vehicle performance
User avatar
Sweetlips
Senior Member
Senior Member
Posts: 195
Joined: 02 Jun 2011 16:12
Full Name: Lawrence
Nickname: Sweetlips
Home Town: Paarl
Current 4x4: 2006 4.8 GRX
Home Language: English
Has thanked: 30 times
Been thanked: 52 times

winch size

Post by Sweetlips »

Hi all

Is there a minimum size winch for the weight of our Patrols?

Someone mentioned as if it seems i have a smallish winch fitted but i can't tell what is smallish. Its all fitted behind the front bumper.

Made me wonder what should be the minimum size winch for a Patrol.
Life's a journey, enjoy the ride!!!

User avatar
Peter Connan
Moderator
Posts: 6365
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 743 times
Been thanked: 693 times

Re: winch size

Post by Peter Connan »

The manufacturer's little guulty secret with regard to winches is this:
The rating on a typical winch is given as how much weight in pounds a winch can drag across a concrete floor.

Thus, an 8000lb winch can drag 8000lb of weight horisontally. 8000lb is 3571kg. The friction coefficient of the test setup is supposed to be 0.3. Thus, an 8000lb winch can lift just a little more than 1 ton. Also, that test is done on the first winding of the drum. Add more windings and the force it can exert comes down. The difference between a full drum and an empty drum is significant.

One can of course compensate by using snatch blocks, but if the anchor is far away that might cause you to run out of rope, and of course it halves the pull speed.

If I were to buy a winch for a Patrol, I would not buy smaller than 12 000lb. But if I already had a winch (or if some kind soul donated one to me) I would just carry more extension straps and snatch blocks.

:mytwocents:
Mag ons ons kenniskry met lekkerkry aanhoukry.

User avatar
Sweetlips
Senior Member
Senior Member
Posts: 195
Joined: 02 Jun 2011 16:12
Full Name: Lawrence
Nickname: Sweetlips
Home Town: Paarl
Current 4x4: 2006 4.8 GRX
Home Language: English
Has thanked: 30 times
Been thanked: 52 times

Re: winch size

Post by Sweetlips »

Peter Connan wrote:
04 Jan 2021 16:33
The manufacturer's little guulty secret with regard to winches is this:
The rating on a typical winch is given as how much weight in pounds a winch can drag across a concrete floor.

Thus, an 8000lb winch can drag 8000lb of weight horisontally. 8000lb is 3571kg. The friction coefficient of the test setup is supposed to be 0.3. Thus, an 8000lb winch can lift just a little more than 1 ton. Also, that test is done on the first winding of the drum. Add more windings and the force it can exert comes down. The difference between a full drum and an empty drum is significant.

One can of course compensate by using snatch blocks, but if the anchor is far away that might cause you to run out of rope, and of course it halves the pull speed.

If I were to buy a winch for a Patrol, I would not buy smaller than 12 000lb. But if I already had a winch (or if some kind soul donated one to me) I would just carry more extension straps and snatch blocks.

:mytwocents:
thanks Peter. Now i need to figure out some how the actual size of the winch fitted. Depending on this i should look into investing in some snatch blocks if needed.
Life's a journey, enjoy the ride!!!

Reenen
Senior Member
Senior Member
Posts: 379
Joined: 31 Oct 2013 13:37
Full Name: Reenen Kritzinger
Nickname: Reenen
Home Town: Greyton
Current 4x4: SFA Hardbody
4.8 GRX
V9X Navara
Safari Stasiewa
Safari Pickup
Safari stasiewa
88 Isuzu RD28 Nissan
1978 300D Merc RD28 Nissan
Home Language: Afrikaans
Has thanked: 2 times
Been thanked: 48 times

Re: winch size

Post by Reenen »

My een safari het n warn m8000. Hy is ietwat lig, so ek double maar gewoontlik up.

Vir my ander safari bakkie het ek nou die dag n 12000 gekoop, wat maar selfde motor in het as die 9000, dit het net n stadiger reduction box in. (Nog nie gefit nie, so weet nog nie hoe dit werk nie)

Anthony Forgey
Patrolman
Patrolman
Posts: 506
Joined: 07 Apr 2016 09:46
Full Name: Anthony Forgey
Nickname: Anthony
Home Town: Randburg
Current 4x4: 98 4.2D (turbo'd)
Home Language: English
Has thanked: 119 times
Been thanked: 158 times

Re: winch size

Post by Anthony Forgey »

I have an 8500lbs tjm winch. It has never struggled to pull me (or others) out of trouble. I've used it literally hundreds of times... I get stuck a lot...
Intelligence is measured in smarts, stature is measured in hearts

User avatar
Sweetlips
Senior Member
Senior Member
Posts: 195
Joined: 02 Jun 2011 16:12
Full Name: Lawrence
Nickname: Sweetlips
Home Town: Paarl
Current 4x4: 2006 4.8 GRX
Home Language: English
Has thanked: 30 times
Been thanked: 52 times

Re: winch size

Post by Sweetlips »

After doing some research i have decided that whatever the size of my winch i am going to invest in a snatch block.

Having the additional assistance cannot be that bad and they are fairly priced.
Life's a journey, enjoy the ride!!!

User avatar
Peter Connan
Moderator
Posts: 6365
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 743 times
Been thanked: 693 times

Re: winch size

Post by Peter Connan »

I invested in a snatch block before I invested in a winch.

10 years later I still don't have the winch, but the snatch block has been used several times...
Mag ons ons kenniskry met lekkerkry aanhoukry.

User avatar
Sweetlips
Senior Member
Senior Member
Posts: 195
Joined: 02 Jun 2011 16:12
Full Name: Lawrence
Nickname: Sweetlips
Home Town: Paarl
Current 4x4: 2006 4.8 GRX
Home Language: English
Has thanked: 30 times
Been thanked: 52 times

Re: winch size

Post by Sweetlips »

Peter Connan wrote:
08 Jan 2021 11:52
I invested in a snatch block before I invested in a winch.

10 years later I still don't have the winch, but the snatch block has been used several times...
Peter this might be a stupid question but if you don't have a winch what and how do you use the snatch block?
Life's a journey, enjoy the ride!!!

User avatar
Russ Kellermann
Patrolman 1000+
Patrolman 1000+
Posts: 1171
Joined: 01 Feb 2010 22:39
Full Name: Russell Kellermann
Nickname: Russell Kellermann
Home Town: Cape Town now, grew up on the Wild Coast.
Current 4x4: 2007 Patrol 4.2D Pickup
2005 Patrol 4.2TD Wagon
Home Language: English
Has thanked: 8 times
Been thanked: 72 times

Re: winch size

Post by Russ Kellermann »

Pete, being an engineer, in the presence of a recovery, would most likely have er'd on the side of caution, and offered his snatch block to be used. :thumbup:
'07 Patrol Pickup TD42 N/A,285's KM2,3" Lift,ONCA Bars,Warn High Mount,Alu Canopy, and some other Stuff.

User avatar
Peter Connan
Moderator
Posts: 6365
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 743 times
Been thanked: 693 times

Re: winch size

Post by Peter Connan »

So there's an argument on at 4x4 community at the moment. This oke recons if you are using a snatch block, jou should be attaching the end of the line (the one with the hook on) to a tree or a third vehicle.

His argument is that you are then reducing the load being put into the chassis of the vehicle.

I haven't said it there, but my opinion is that while that is potentially possible, most of the time it won't. It takes a certain amount of force to get the vehicle un-stuck. What you are doing with a snatch block most of the time is just spreading the load to two points, and halving the speed of the operation, thus giving yourself more control and probably increasing the life of the rope or cable.

Because in 99% of cases, I think it doesn't actually take that much force to get a vehicle un-stuck. Sure, there are cases where it does take a lot of force, but even then, I would rather spread the load.
But maybe he drives something with a spaghetti chassis.

So yes, Russ is correct, my snatch block typically gets used to help other guys with winch recoveries.
On one occasion though, we used it to winch my car from the side, from a direction where it was impossible to get a vehicle, but where there was a good anchor point.
Mag ons ons kenniskry met lekkerkry aanhoukry.

Post Reply

Return to “18. Vehicle Accessories”

Who is online

Users browsing this forum: No registered users and 5 guests