Re: Will a 3000lb electric wench
[Re: RATTRAP]
#1048215
08/06/11 04:53 PM
08/06/11 04:53 PM
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69CHARGERMD
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Found this,,,,the link gives a table for ground effect percentages,,,and effort required,,,,, Calculating Winch Loads Total Weight = Vehicle Weight + Load weight Winch Pull = ( <Slope degrees> * Total Weight /60) Ground Factor Weight = Winch Pull * Ground Effect Percentage Winch Load = Winch Pull + Ground Factor Weight Example. Given: * Vehicle weight = 4,400 pounds * 300 pounds of total load weight * winch up a 50 degree slope consisting of shallow mud Total Weight - 4400 + 300 = 4700 Winch Pull - (50*4700/60) = 3917 Ground Factor Weight - 4,700 * 35% = 1645 Winch Load - 3917 + 1645 = 5562 http://www.4wd4all.com/forums/attachment...012&thumb=1
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Re: Will a 3000lb electric wench
[Re: 69CHARGERMD]
#1048216
08/06/11 04:58 PM
08/06/11 04:58 PM
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69CHARGERMD
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not sure what the "slope" is your pulling your car up,,,,but,,, eg,,if you use the 50* as below,, and your on pavement,,i think you would be ok...or close.....
Total weight = 3400
Winch pull = 50*3400/60 = 2833
Ground factor = (pavement) 3400 * 4% = 136
Winch load = 2833 + 136 = 2969
hope this helps....
Doug
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Re: Will a 3000lb electric wench
[Re: RATTRAP]
#1048219
08/06/11 05:10 PM
08/06/11 05:10 PM
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Joined: Jun 2003
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MR_P_BODY
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Most winches are rated to pull a vertical load... as in your case 3000 lbs it should lift 3000 lbs vertically... so when you induce a drag weight it will pull MUCH more than the rated lift weight... I use a 1500 lbs winch to pull my car up a pretty good angle on my ramps.............. but I guarantee your 3000 lbs winch will pull your 3400 lbs car up a set of ramps all day long
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Re: Will a 3000lb electric wench
[Re: MR_P_BODY]
#1048220
08/06/11 05:17 PM
08/06/11 05:17 PM
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Joined: Jan 2003
Posts: 3,031 Erda, UT
67Charger
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You're calculating it backwards. The slope is the angle of the ramp to level ground, and is usually about 10° to 20° for trailer ramps. The 50° was just an example for winching a truck up a steep, muddy slope.
Total weight = 3400
Winch pull = 10*3400/60 = 567
Ground factor = (pavement) 3400 * 4% = 136
Winch load = 567 + 136 = 703
Total weight = 3400
Winch pull = 20*3400/60 = 1134
Ground factor = (pavement) 3400 * 4% = 136
Winch load = 1134 + 136 = 1270
Last edited by 67Charger; 08/06/11 05:24 PM.
11.33 @ 118.46 on motor 10.75 @ 125.35 w/ a little spray Now, high Speed Open Road Racing - Silver State Classic Challenge, Nevada Open Road Challenge, Big Bend Open Road Race Rocky Mountain Race Week 2020, 2022 2.0, Sick Week 2023
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Re: Will a 3000lb electric wench
[Re: 67Charger]
#1048221
08/06/11 05:19 PM
08/06/11 05:19 PM
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MR_P_BODY
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Quote:
You're calculating it backwards. The slope is the angle of the ramp to the ground, and is usually about 10° to 20° for trailer ramps. The 50° was just an example for winching a truck up a steep, muddy slope.
I dont think your talking to me on that
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Re: Will a 3000lb electric wench
[Re: MR_P_BODY]
#1048222
08/06/11 05:23 PM
08/06/11 05:23 PM
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67Charger
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Quote:
Quote:
I think you're calculating it backwards. The slope is the angle of the ramp off level, and is usually about 10° to 20° for trailer ramps. The 50° was just an example for winching a truck up a steep, muddy slope.
I dont think your talking to me on that
nope, 69CHARGERMD
11.33 @ 118.46 on motor 10.75 @ 125.35 w/ a little spray Now, high Speed Open Road Racing - Silver State Classic Challenge, Nevada Open Road Challenge, Big Bend Open Road Race Rocky Mountain Race Week 2020, 2022 2.0, Sick Week 2023
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Re: Will a 3000lb electric wench
[Re: RATTRAP]
#1048224
08/06/11 05:30 PM
08/06/11 05:30 PM
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Joined: Jun 2003
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MR_P_BODY
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Quote:
Now i just need the rain to quit so i can go out and install my new toy,
Just starting here(rain).... if you have a 3000 lb winch it will pull 4500 lbs up a 45* slope(add 1/2 the rated weight... then if you want to figure the rest of the angles.... go for it)
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Re: Will a 3000lb electric wench
[Re: MR_P_BODY]
#1048225
08/06/11 05:42 PM
08/06/11 05:42 PM
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69CHARGERMD
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Quote:
You're calculating it backwards. The slope is the angle of the ramp to level ground, and is usually about 10° to 20° for trailer ramps. The 50° was just an example for winching a truck up a steep, muddy slope.
I just left 50* as a example...i assumed his angle was less than that... thanks.
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Re: Will a 3000lb electric wench
[Re: 67Charger]
#1048226
08/06/11 05:54 PM
08/06/11 05:54 PM
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Joined: Oct 2007
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polyspheric
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Total weight = 3400 Winch pull = 20° × 3400 ÷ 60 = 1134 Ground factor = (pavement) 3400 × 4% = 136 Winch load = 1134 + 136 = 1270
That looks better, but please note that the angle input is not proportionate to the actual forces. The usual test with a formula is to exaggerate a variable in both directions and see if the results make sense. Here, a vertical pull would mean multiplying by 90, but 90 ÷ 60 isn't the vertical pull, it's much more. I have a feeling that the variable you want is a trig function of the ramp angle, rather than the angle ÷ 60. Example: with a 20° ramp, the variable should be .333 (20 ÷ 60). The sine of 20° is .342, pretty close (2.6% error). Use 10°, should get .1666667 (10° ÷ 60). The sine is .174 (4.2% off) Really steep ramps, like 45° and up, are where the angle/60 method begins to fail: 45 ÷ 60 = .75. The sine of 45° is .707, a lower figure. Using 60°: the above method says the load is 1.00 (same as vertical), but of course it isn't, it's probably the sine, .866. Go to 90°: the sine of 90° is 1.0, so the calculation exactly equals a vertical pull (whereas the above method predicts 1.5).
If the winch is too small but has a long cable, just use a pulley (or more than 1). Running the line to a pulley at the load, then back to the winch almost doubles capacity (some minor loss through friction and cable bending). The cable length must be doubled, but of course if splicing it the added cable can safely be as small as 50% of the original rated load.
Last edited by polyspheric; 08/06/11 06:03 PM.
Boffin Emeritus
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Re: Will a 3000lb electric wench
[Re: Aspen7695]
#1048235
08/06/11 07:29 PM
08/06/11 07:29 PM
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Joined: Jan 2003
Posts: 5,987 Anoka County, MN
Leigh
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Quote:
I use a 3000lb Superwinch to pull my 3250lb Duster on my open trailer. No problem at all.
Raul
Now on a more serious note, I have the same winch, and no problems at all.
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Re: Will a 3000lb electric wench
[Re: Bob_Coomer]
#1048236
08/06/11 07:30 PM
08/06/11 07:30 PM
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MR_P_BODY
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Quote:
My ATV had a small wench which was 1500 maybe 2000 lbs rated. It pulled my Dakota onto a flat bed open trailer a few times... No problems... if a 3000 wench cant do this, its JUNK.. I would avoid the cheaper harbor freight type wench's.
Sorry... I've been using the cheap Harbor freight ones for years.... I did just buy a new one because the clutch is starting to slip..... cant see buying a big dollar Warn when it sits MOST of the time
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Re: Will a 3000lb electric wench
[Re: Bob_Coomer]
#1048238
08/06/11 07:57 PM
08/06/11 07:57 PM
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MR_P_BODY
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Quote:
Quote:
Quote:
My ATV had a small wench which was 1500 maybe 2000 lbs rated. It pulled my Dakota onto a flat bed open trailer a few times... No problems... if a 3000 wench cant do this, its JUNK.. I would avoid the cheaper harbor freight type wench's.
Sorry... I've been using the cheap Harbor freight ones for years.... I did just buy a new one because the clutch is starting to slip..... cant see buying a big dollar Warn when it sits MOST of the time
Only reason I say this is cause my Father-In-Laws wench on his Yamaha Rhino is J.U.N.K wont even pull a ATV stuck in a mud hole the other day... It's hardly 6 months old..
I use to pull my car in backwards all the time with the cheapo HF unit but now I drive it in... that cheapo lasted 8 years using it all the time... maybe he got a bad one
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Re: Will a 3000lb electric wench
[Re: Bob_Coomer]
#1048239
08/06/11 08:38 PM
08/06/11 08:38 PM
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Leigh
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Quote:
wont even pull a ATV stuck in a mud hole the other day...
Yep, sure sounds like the wench I'm stuck with. My Super WINCH on the other hand, works hard, when asked.
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Re: Will a 3000lb electric wench
[Re: BloFish]
#1048240
08/06/11 10:26 PM
08/06/11 10:26 PM
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Joined: Aug 2003
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Cab_Burge
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Quote:
Does anyone want to go out on a limb and recommend a winch
I've had and used the 2500 lb Super Winches, 3500 lbs and 4500 lb. Super Winches in trailers, like most thing it is way better to have the bigger one I have a freind who bought one of the Harbor Freight 2500 or 3000 lb winches(I can't remerber which ) it work twice and quit pulling his 1964 Dodge 330 two door bracket car into his Pace 24 ft enclosed trailer with the noraml dove tail floor and door As Fred said, the 2500 lb winch would almost come to a complete stop pulling my old bracket Duster(3150 lbs with me in it, 2870 lbs without me ) into my Pace trailer with the normal dove tail floor, the 4500 lb one doesn't slow down at all One of my old booses ask me to rescue his 1967 Ford 3/4 ton pick up truck(empty) when it broke down out of town, the 3500 lb winch in that trailer struggle to pull his truck into my trailer Warn winches are very good also, according to all the off roaders around here
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Will a 3000lb electric wench
[Re: Mopar-Al]
#1048245
08/07/11 12:15 AM
08/07/11 12:15 AM
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J_BODY
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Alyerpal and REHBERGER can wad their cars up, tear the wheels clean off of them...... and still get the car back in the trailer! I have one of the Harbor Freight 3k winches...... see Freds story about taking a nap while getting the car back in the trailer.
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Re: Will a 3000lb electric wench
[Re: RATTRAP]
#1048247
08/07/11 12:56 AM
08/07/11 12:56 AM
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Sport440
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Quote:
Will a 3000lb electric wench Pull my 3400lb car onto a trailer?? What lb rating is the avarage every one uses
Yes, it will! I used the elcheapo $49.00 1500# winch from harbor freight for a few years, Like MrPBody did.
I only had to tow the 3000# race car onto the trailor once. But I used it many times to tow other heavier vehicals onto the same trailor at heavier weights, 4500+ or so.
The old El Cheapo $49.00 1500# winch from Harbor freight worked pretty good.
My newer El Cheapo $89.00 3000# winch from Harbor freight is a train wreck. The cable as it unspools binds up like you wouldnt believe. That was never a problem with the 1500# winch.
You get what you pay for! Winch cable speed is also a serious consideration.
As far as wenches, They need love too!
Dont we all get along?? Wrench and Wenches!
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Re: Will a 3000lb electric wench
[Re: Sport440]
#1048248
08/07/11 11:07 AM
08/07/11 11:07 AM
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Joined: Sep 2003
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MRMOPAR622
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My cheap Harbor Freight 3000 lb winch not only pulls my dragster in but lets it out of the trailer. It may not be a high $$$ warn but still gets the job done. Sport440,you need to keep tension on most winches as they unspool. Hopes this helps solve your problem.
Last edited by MRMOPAR570; 08/07/11 11:11 AM.
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Re: Will a 3000lb electric wench
[Re: MRMOPAR622]
#1048249
08/07/11 12:44 PM
08/07/11 12:44 PM
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jerrya
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If you use a snatch block, (another pulley to double line the cable) it will double what you can pull.
Man does not plan to fail... he fails to plan
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Re: Will a 3000lb electric wench
[Re: RATTRAP]
#1048250
08/07/11 02:39 PM
08/07/11 02:39 PM
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Joined: Feb 2011
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Just-a-dart
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I use a 3000# superwinch all the time for my car/trailer. Most of the problems I have seen others have are wiring or battery related (they cheap out and undersize)
Last edited by Just-a-dart; 08/07/11 03:51 PM.
"Just a Bracket car dressed up like a streetcar"
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Re: Will a 3000lb electric wench
[Re: jerrya]
#1048251
08/07/11 02:41 PM
08/07/11 02:41 PM
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MR_P_BODY
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Quote:
If you use a snatch block, (another pulley to double line the cable) it will double what you can pull.
And at the same time it doubles the time to pull the same distance..... but it will pull double the weight
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Re: Will a 3000lb electric wench
[Re: coronetville]
#1048253
08/07/11 05:30 PM
08/07/11 05:30 PM
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Dago Red
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A 3000 lb wench is like a motor scooter: useful and fun, but just don't let your friends see you riding it....
If You Can't Be Good, At Least Be Colorful
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Re: Will a 3000lb electric wench
[Re: Leigh]
#1048255
08/07/11 11:11 PM
08/07/11 11:11 PM
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you can also add a snatch block (just need more cable) and you just doubled your amount your able to pull
1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi
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