Forum Index
Jeep Horizons HomeLinksJeep Horizons Tech Write-upsJeep newsLand useContact

 Watched TopicsWatched Topics   FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Winch Specifications for Advanced Winching Techniques

Post new topic   Reply to topic     Forum Index -> General Tech
View previous topic :: View next topic  
Author Message
Club Moderator

Joined: 25 Jan 2004
Location: Hippiekickerville, USA

PostPosted: Thu Feb 26, 2004 2:14 am    Post subject: Winch Specifications for Advanced Winching Techniques Reply with quote

Many of us have winches and many of us have winched out of some tough spots. Here are some specifications that I find interesting. I am pulling most of this from the lastest (March) issue of Four Wheeler magazine.

A winch's maximum (rated) pulling power is only available when the rope is pulling directly from the drum. As more layers are added, the capacity decreases significantly. I have listed two tables below, one for 8000 lb winches and one for 9000 lb winches.

Drum Layer= 8000 lbs__________9000 lbs
(100% of rated capacity)
2nd Layer = 6800 lbs__________7650 lbs
(85% of rated capacity)
3rd Layer = 5760 lbs__________6480 lbs
(72% of rated capacity)
4th Layer = 4960 lbs__________5580 lbs
(62% of rated capacity)
5th Layer = 4240 lbs__________4770 lbs
(53% of rated capacity)

These specs should be accurate within 5% on all winches.

Different types of winch rope also affect the rated capacity of your winch.

Wire Rope

7 X 19 Galvanized Cable
3/16" = 4,200 lbs
1/4" = 7,000 lbs
5/16" = 9,800 lbs
3/8" = 14,400 lbs

7 X 19 Stainless Steel Cable
3/16" = 3,700 lbs
1/4" = 6,400 lbs
5/16" = 9,000 lbs
3/8" = 12,000 lbs

Synthetic Winch Rope

3/16" = 5,400 lbs
1/4" = 9,200 lbs
5/16" = 13,700 lbs
3/8" = 20,400 lbs

All specifications are listed for comparison only. Actual operating loads may vary, but should never exceed recommended design factor or 20% of catalog breaking strength.

Bottom line - understand your gear and it's limitations, maintain it well, replace when worn, and treat it as lethal, and you're much more likely to have an effective and SAFE winching experience.
But hey, WTF do I know? I kick Hippies for fun.

Back from the Dead??
Back to top
View user's profile Send private message Visit poster's website AIM Address Yahoo Messenger
Display posts from previous:   
Post new topic   Reply to topic     Forum Index -> General Tech All times are GMT - 8 Hours
Page 1 of 1

Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Visit for write-ups, forums and clubs

Jeep®, Wrangler, Cherokee, Liberty and Grand Cherokee are copyrighted and trademarked to Chrysler LLC. is not in any way associated with or endorsed by the Chrysler LLC.
All other content is copyright Jeep Horizons 2004-2008.
Tech write-ups Links Discussion board Land use News Site Map Terms of Use

Powered by phpBB © 2001, 2005 phpBB Group