Mud Mauler Winch

Submitted: Saturday, Sep 20, 2003 at 22:02
ThreadID: 7327 Views:3019 Replies:4 FollowUps:2
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WARNING to any potential purchasers
4WD Megastores/Warehouse sell and advertise the chain type Mud Mauler winch.
They advertise the rating at pull up to 4.4 tonnes.
This is false advertising!!!!!
I spoke to the manufacturers, Evercam Transport in Queensland and they were most informative and helpful with my enquiries.
They rate the winch at 2.3 tonne!!!!!
They said that the chain only is rated at 4.4 tonnes. The shear pin will sheer at 2.3 tonne as a safety mechanism.
So it is only a 2.3 tonne winch not 4.4 tonne...BIG DIFFERENCE!!!!

Cannot contact 4WD Megastores/Warehouse through their website to complain about this....

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Reply By: Eric from Cape York Connections - Sunday, Sep 21, 2003 at 06:44

Sunday, Sep 21, 2003 at 06:44
Joe I am pretty certain you will find chains and wire are rated on a vetical lift and not a horizontal pull and aparently the horizontal is double of the vertical.
All the best
4wd Tag Along AdventuresCape York Connections
AnswerID: 31598

Follow Up By: howesy - Sunday, Sep 21, 2003 at 19:23

Sunday, Sep 21, 2003 at 19:23
Load is load. A given weight maychange in it's load when applied as a dead weight to lift vertically, however if a shear pin has a load rating of 2 tonne then thats where it will shear, it wont know if the load is horizontal or vertical so it gets back to what the learnard gentleman said. The shear pin will fail at just over 2 tonne so whether it is vertical or horizontal you are never going to load that winch to 4.4 tonne in any direction. remember the load does not necessarily relate to the weight of what you are pulling. If his load rating findings are right then it would indeed be something to question the supplier on.
My opinion for what it's worth. , take care.
FollowupID: 22564

Reply By: ross - Monday, Sep 22, 2003 at 12:21

Monday, Sep 22, 2003 at 12:21
I would have to agree with Howesy on that one.A load is a load . Load ratings are always based on a staight vertical pull.There is no way a horizontal pull can be calculated accurately except by engineers with specialised equipment.Out in the bush its all guess work based on experience Its also bad practice to place heavier duty rope,shackles,hooks on a lower rated winch as its misleading and pointless because it cant be used to its full rating.
AnswerID: 31661

Reply By: yarda - Monday, Sep 22, 2003 at 13:51

Monday, Sep 22, 2003 at 13:51
Good to know Joe, a shear force load of 2.3 t is still 2.3 regardless of the direction the load is applied at, i think guys are getting confused with the safety factor calculations which apply to hoists / winches etc when they are approved and rated for load lifting purposes. You will see some winches rated for pulling with another rating for lifting and this is usually about half of the pulling capacity that is the safety factor in use. Cables and equiptment used for lifting people have a safety factor of 10 from memory, so when you get in a lift and read that it is good for 1000kg , the cables etc have an actuall failure rating of 10,000kg.. good to know !!

As for the winch, the info on it is great thanks Joe, i was contemplating the purchase of one next month. Do you know if Evercam sell them direct ?? or do they have a model with a higher true rating ?? Thanks Brad.
AnswerID: 31668

Follow Up By: Joe - Friday, Sep 26, 2003 at 00:34

Friday, Sep 26, 2003 at 00:34
Hi Yarda
They told me they don't sell direct.They do a big version for the railways.
Don't know how big it is. Evercams No is 07 4627 1297

FollowupID: 22867

Reply By: Member - Bradley- Monday, Oct 13, 2003 at 11:11

Monday, Oct 13, 2003 at 11:11
Hello again Joe, i went and had a look at one of units, they are fairly rough as far as build quality goes - especially the gear teeth. The salesman in the shop here in Melb told me that they are rated at 4.4t and that they hadn't had any complaints about them - apart from the short crank handle. Hmm so i rang the guys at evercam and asked some technical questions - ie Nata testing etc. First they told me that the chain and winch is rated at 4.4t in a static situation - ie towing a car with it. Then i got it out of them that the winch is only rated at 2t . After further questions regarding failure limits etc. they then tell me that the shear bolt is only rated at 1.2t and that this is why the winch has a short handle to limit the input force. So the winch is actually only good for 1.2t at best. It is not possible to apply more than 1.2t to the chain in a straight line pull. A far cry from 4.4t !!!!

You might as well buy a 1t chain block rated at 1t lifting force for less than half the price... Interesting what we find out in the end hey.. Thanks again for the warning and info mate. BradLife is short- but there's always time for a yarda.
AnswerID: 33559

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