Author	[Modern View]
NCWayne 08-08-2012 20:38:56 69.40.232.132 Report to Moderator	Just read Bopa's reply to the spendy tool post below and got curious as to what the largest drive available was. So far the biggest I've found is IR's 3 1/2 inch drive impact. Looks like max torque is around 80,000 ft lbs, it weights 599 lbs without a socket,and only needs 375 CFM to operate. I think we all need one of these for those stubborn axel nuts we run into on occasion. Problem is I think you'd have to chain the tractor down so this monster didn't spin it around the nut.....LOL BIG impact [Reply]   [No Email]
IRtoolsguy 08-13-2012 08:05:50 168.65.231.226 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-08-2012 20:38:56   Unfortunately, we have recently discontinued the 599, however, we believe many of our customers in construction and agriculture use the new 2145QiMAX. Any of you have one? http://www.ingersollrandproducts.com/am-en/products/tools/new-tools/2145qimax-impact-wrench. What has been your experience with it? 2145 QiMax. Ever used one? [Reply]  [No Email]
Fred Martinohfred41cinci 08-11-2012 15:50:39 24.209.200.143 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-08-2012 20:38:56   I been in one of those Norfolk Navy Yard machine shops and came upon a vertical lathe that had a picture beside of it and there was 32 men lined up shoulder to shoulder across the chuck. It was 40 feet in diameter. There was a very tall metal stairs going up to the vertical and cross feed wheels. How'd you like to be on the cleanup detail cleaning up the shavings that thing produced? Maybe with a Bobcat?? I saw the yard workers taking the nut off of a propeller on a ship in dry dock and they used one of those cranes on railroad tracks and a wrench about I'd guess about 10 or 15 feet long. ohfred [Reply]  [No Email]
bob15 08-10-2012 15:22:29 70.138.6.47 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-08-2012 20:38:56   After buying the impact gun, you can go on Amazon and buy a 9 1/2" deep socket.....and it ships for free!!!! a real bonus Here is the Wright socket to go with it [Reply]  [No Email]
TomH in Pa 08-10-2012 16:09:00 67.235.10.94 Report to Moderator	Re: Think the spendy sockets are big.... in reply to bob15, 08-10-2012 15:22:29   Shipping Weight: 93 pounds Yipes. But for $5700 I suppose free shipping is a bargain. [Reply]  [No Email]
s.crum 08-09-2012 18:34:04 67.142.181.24 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-08-2012 20:38:56   I think those monsters were produced right up in town (Athens) at the "Rand". I remember touring the plant when I was in 6th or 7th grade. I remember watching a guy profiling a 12" socket to be used in the oil fields. All gone now, some young kid over in China will have that memory someday. [Reply]  [No Email]
welding man 08-09-2012 18:13:16 76.9.225.76 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-08-2012 20:38:56   In 1972 when I worked in a coal fired power house we used a 3 1/2 in drive IR Impact wrench. We hung it from the overhead crane with one man on each handle and one on the air valve. Thats right 3 men to run it. Was torquing 6 in. bolts on the High pressure turbine shell. Can't remember the size of the nut,but I think it was something over 9 inches. Boss man said the impact cost $10,500.00 and that was in 1972 dollars. [Reply]  [No Email]
Bud in wv 08-09-2012 16:17:22 173.80.243.75 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-08-2012 20:38:56   We used to use a 2-1/2" drive "588" on turbines *real* often. If the 588 didn't bring it, get out the "smoke wrench".... I saw one outage where we torched more studs and nuts than we unscrewed. They were only about $500 per nut and a few $k for each stud. It was cheaper to cut and replace them than to waste man hours and outage schedule time. [Reply]  [No Email]
bobpa 08-09-2012 06:46:19 72.23.158.229 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-08-2012 20:38:56   WOW! I had no idea such a tools were available. What job would require a nut torqued to 80000 ft/lb torque? And what job would have an 8" nut? A factory building bulldozer, dragline, railroad cars? I read about it suspended from a crane to operate, but you'd think the workers would have back injuries from just lifting the nuts and bolts all day. Bob [Reply]  [No Email]
Big nut 08-09-2012 15:59:40 198.53.66.5 Report to Moderator	Re: Think the spendy sockets are big.... in reply to bobpa, 08-09-2012 06:46:19   The nuts that hold the 50,000 ton Mesta forging press together are a lot bigger than 8". [Reply]  [No Email]
TimV 08-11-2012 16:12:59 67.242.34.187 Report to Moderator	Re: Think the spendy sockets are big.... in reply to Big nut, 08-09-2012 15:59:40   Yup, saw big nuts on a few different presses--4-post or similar presses often have a large nut holding on each post. We had one with 6" posts and 2 nuts on each end of each post. Not sure of the diameter other than the fact that standard nut sizing is around 1.5x bolt diameter, which would put them around 9" dia. Took those off and on with a purpose-built wrench and a RBFH....... [Reply]  [No Email]
Big nut 08-09-2012 16:03:02 198.53.66.5 Report to Moderator	Re: Think the spendy sockets are big.... in reply to Big nut, 08-09-2012 15:59:40   The nut that holds the prop on a 110,000 HP container ship would need a liitle torqye to stay tight. It's the largest nut in the world. [Reply]  [No Email]
petetx 08-09-2012 08:27:52 76.1.74.121 Report to Moderator	Re: Think the spendy sockets are big.... in reply to bobpa, 08-09-2012 06:46:19   my dr. said i had a machinists back. and about 1/2 deaf from them big impacts & nuts and bolts But at 72 i ain't to bad the compressors we worked on ran at 32000 # and more pressure so we needed them big impacts [Reply]  [No Email]
bobpa 08-09-2012 15:31:54 72.23.158.229 Report to Moderator	Re: Think the spendy sockets are big.... in reply to petetx, 08-09-2012 08:27:52   Hi Pete, I could see how working with equipment this big would take its toll on a guys body over the years. [Reply]  [No Email]
NCWayne 08-09-2012 07:40:39 69.40.232.132 Report to Moderator	Re: Think the spendy sockets are big.... in reply to bobpa, 08-09-2012 06:46:19   Often it's not the torque required for tightening a fastener that needs the extra force, but the torque to loosen it. This is because of the force needed to overcome friction and get the fastener to 'break away' from both the mating surfaces on the threads as well as the flat holding surface that's against the part being held on. In other words that nut that took 4000 ftlbs to put on might take 5000 ftlbs to initially break it loose when taking it off. This is why when your tightening something like the head bolts on an engine you always want to make the turn on the last torque value in one motion without stopping. If you stop before reaching full torque, the force to break the fastener free before it can turn can give a false torque reading. As far as what torques this high, things like fasteners on large gearboxes, turbines, etc. Looking at torque charts the highest I've seen any of them go is something like 8200 ftlbs for a 2" Gr8 bolt. Granted the torque to size ration isn't going to be 1 to 1 as the size gets larger, but anything needing 80,000 plus ftlbs will definately be rather large. [Reply]  [No Email]
bobpa 08-09-2012 15:28:30 72.23.158.229 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-09-2012 07:40:39   Wayne, Thank you for explaining that to me. Equipment this big is amazing to me. I have a 3/4 inch set for my tractor. The sockets are old (Husky USA) and ratchet is Craftsman. I thought they were heavy to tote around. Bob [Reply]  [No Email]
glennster 08-09-2012 07:31:49 75.57.143.173 Report to Moderator	Re: Think the spendy sockets are big.... in reply to bobpa, 08-09-2012 06:46:19   i find these giant tools interesting. it just is plain amazing the size of some of this stuff. years ago i was in a material service maintenance building, they had a lathe that had railroad tracks leading up to it. they were maching a gear about 14 feet in diameter, a foot wide. real cool machine. i think i want one!!!! [Reply]  [No Email]
NCWayne 08-09-2012 07:44:17 69.40.232.132 Report to Moderator	Re: Think the spendy sockets are big.... in reply to glennster, 08-09-2012 07:31:49   You ought to see the ones in the shipyards. We spent time in the yards in Norfolk when I was in the Navy and I had to go out one day to find something we needed, and wound up in one of the machine shops. I don't know if those lathes could swing the 14' diameter, but they could handle shafts that were 100 or more feet long. Like you said, these really huge machines are amazing. [Reply]  [No Email]
glennster 08-09-2012 08:11:45 75.57.143.173 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-09-2012 07:44:17   and then if you think about it, how big do the machines have to be to make these big lathes and such. like those giant mining shovels that have the huge buckets, you need some type of machine to make the bucket, that is prolly just plain huge, then something had to make that machine. we toured cape canaveral (sp) in florida about 12 years ago on a bus tour and saw the vehicle assembly building that they assembled the space shuttle in. holy cow!!!! then they had this thing that they drove out to the launch pad carrying the assembled shuttle. awesome!!! [Reply]  [No Email]
bobpa 08-09-2012 15:21:15 72.23.158.229 Report to Moderator	Re: Think the spendy sockets are big.... in reply to glennster, 08-09-2012 08:11:45   Years ago they did alot of strip mining around here. They would have a bucket at their shop sometimes. I would guess it was the size of a 2 car garage. [Reply]  [No Email]
petetx 08-08-2012 23:08:41 76.1.74.121 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-08-2012 20:38:56   use"d to run one in the poly plants hung it off the overhead crane. [Reply]  [No Email]
Scott D Orbaker 08-08-2012 22:02:16 66.67.10.232 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-08-2012 20:38:56   You'd have to be the Incredible Hulk to use that thing. It requires an 1 1/2" air line! That's a dang fire hose! LOL [Reply]  [No Email]
Terry G 08-08-2012 20:53:54 173.218.168.41 Report to Moderator	Re: Think the spendy sockets are big.... in reply to NCWayne, 08-08-2012 20:38:56   Then you would have to buy a set of Harbor Freight sockets. [Reply]  [No Email]
wvajim 08-09-2012 01:58:01 173.80.239.165 Report to Moderator	Re: Think the spendy sockets are big.... in reply to Terry G, 08-08-2012 20:53:54   Hey, if you can afford that set of snapoff sockets, the impact hammer ain"t too bad. . Just a few bucks. [Reply]  [No Email]