Torque Multiplier

[Robert Bolton]

Does anyone have a reasonable source for a torque multiplier with a 750 ft. lb. rating?

Thanks, Robert

 

[kf4uda]

Here are a few:

Amazon.com : torque multiplier

https://www.summitracing.com/oh/search/part-type/torque-multipliers?SortBy=Default&SortOrder=Ascending

Torque Multiplier for sale | eBay

Get the best deals for Torque Multiplier at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!

www.ebay.com

 

[5030]

I just use a bigger impact wrench myself. If my 1/2" drive IR won't do it, my 3/4 will and if that won't do it, my 1" will.

 

[PILOON]

Heck I simply use a length of pipe that I slip over my ratchet or on my tire X bar.
Twice the tool length= 2x the torque.

LOL, worst wheel had me propping the X bar on a cement block, length of pipe and me jumping on the extended X bar. Loud 'crack' and I landed on my azz.

 

[arto98607]

I bought a used US made one similar to this from eBay vendor.

 

[Captain Dirty]

Heck I simply use a length of pipe that I slip over my ratchet or on my tire X bar.

I have a 5' length of 1-1/2" pipe that fits comfortably on a 15" crescent wrench and a 50-lb. spring (fish) scale that gets me to 250 #'. 750 #' would be 125# at 6'. Torque value tolerance is + or - 10% so you do not have to be precise at 750 #' (that's tight, 1" grade 8 bolt, 1-1/4" grade 5).

 

[5030]

Heck I simply use a length of pipe that I slip over my ratchet or on my tire X bar.
Twice the tool length= 2x the torque.

LOL, worst wheel had me propping the X bar on a cement block, length of pipe and me jumping on the extended X bar. Loud 'crack' and I landed on my azz.

...and when the head fails and it becomes a missle and whacks you in the noggin, you'll wish you didn't use a cheater pipe.

 

[5030]

So much easier and safer to use an air impact wrench.

 

[WranglerX]

Lots of them out there.... I picked up one a few years ago at a a flea market for an astronomical price of $10..... It's a 4:1 multiplier, it will take up to 250ft-lbs on input applying up to 1000ft-lbs on output.... Mine is very similar to one below.... 1/2 drive on input side 3/4 inch drive on out put side....

https://www.amazon.com/Neiko-03715B-Torque-Multiplier-Foot-Pound/dp/B0017K5ARU

Google search will show all different types and pricing from about $50 to $2000 depending in your needs....

IF its for only a one time use, check with local tool rental place or auto parts that loans tools, no point in buying one if its not going to be used a lot...

 

[WranglerX]

Heck I simply use a length of pipe that I slip over my ratchet or on my tire X bar.
Twice the tool length= 2x the torque.

LOL, worst wheel had me propping the X bar on a cement block, length of pipe and me jumping on the extended X bar. Loud 'crack' and I landed on my azz.

Anybody who uses a extension pipe on a RATCHET is just dangerous ........ I have broken 3/4 breaker bars and they are more stout than most ratchets... Firm believer in torque multipliers after breaking two 3/4 breakers bars and then having to take project to truck tire shop and have them use 1 inch impact to get flywheel gland nut loose...This was pre torque multiplier days...

 

[caver]

I have the Neiko larger unit listed in the first link. It's not rated for impact use and the ratio on it is slightly off per one of the reviews and they are correct. I've used a few times to torque/break loose rod caps in cylinder rebuilds on my backhoe.

 

[5030]

I have the Neiko larger unit listed in the first link. It's not rated for impact use and the ratio on it is slightly off per one of the reviews and they are correct. I've used a few times to torque/break loose rod caps in cylinder rebuilds on my backhoe.

I don't believe any of them are impact rated. All rated for manual force far as I know. Be too easy to apply too much twist with an impact tool.

 

[oosik]

My highest torque requirement - inner nuts on the tractor rear wheels - 225 foot pounds. That's a snap with my 3/4" breaker bar. My big torque wrench goes to 250# - so, tightening is no problem either.

 

[dstig1]

Impact is not the solution for all stuck items. Sometimes you need slow steady MASSIVE force to break things loose or move them. I recall one good example where I was using a ball joint press (basically a giant C-clamp) to press out a ball joint on a front suspension arm of my wife's exploder several years back. I used the impact wrench (hi powered IR 1/2" one) and it would not budge. But even an 18" breaker bar with steady but serious force applied would move it. I have run into this multiple times over the years. I always start with impact as it is the Easy Button but there are cases where I know it isn't likely to work and am ready to move to a breaker bar and even possibly a pipe extension on it to get something to move. Just the voice of experience...

 

[ptsg]

Fun fact is the OP just asked for a torque multiplier, without giving any details of why he need it in the first place, which is not needed anyway. As far as I know, an impact may not even work for the OP's situation or he simply wants to torque something a bit more carefully than just slam an impact on everything.

 

[newbury]

Darn! Another tool I need.

 

[DieselBound]

Darn! Another tool I need.

Ha ha! For a long time I know I've needed one (I've got stuff to un-stick things; I don't have things to tighten to spec anything over about 110 lbs-ft), and then I run across this thread and I feel ashamed... Need to figure out how I can order one of these things off of Amazon without my wife knowing (I use her account)!


BTW - The NEIKO PRO 3/4" is rated to 2,200 lbs-ft. That's hazardous duty category!

 

[RancherGuy]

Impact is not the solution for all stuck items. Sometimes you need slow steady MASSIVE force to break things loose or move them. I recall one good example where I was using a ball joint press (basically a giant C-clamp) to press out a ball joint on a front suspension arm of my wife's exploder several years back. I used the impact wrench (hi powered IR 1/2" one) and it would not budge. But even an 18" breaker bar with steady but serious force applied would move it. I have run into this multiple times over the years. I always start with impact as it is the Easy Button but there are cases where I know it isn't likely to work and am ready to move to a breaker bar and even possibly a pipe extension on it to get something to move. Just the voice of experience...

Interesting experiences for you. I have seen the opposite. I have broken lug bolts off when using a breaker bar. Frustrated, on the same wheel, I took the time to get my impact wrench. Got the rest off without breaking another and didn't grunt or sweat either.

 

[Fuddy1952]

I got some black iron pipe in plumbing section, 3ft sections 1" to 2" with adapters so I can use what's needed for the job.

 

[billypumper]

Should be able to buy a multiplier on eBay at a decent price, haven't used my Proto for quite some time, not since cordless impact wrenches came out, some 1/2 inch cordless goes to 1200 ft.lbs.