Memories, what a machine. They dont build them like this any more? Electricity plus steel ropes = more than any hydrolic excavator can do these days? I know, I'm getting old. Check out the old Terex!!! Two passes , I mean one and a bit???? and was running over!!!! Whah, hooo, Cheers, Ironbark.
In fact she was that good that the company, when they were released, invested in a brand new fleet of Cat 789's, and still the PH 5700 waited? and waited, and waited some more? Crosswords were a time filler if the dump was a little far away?? Cheers, Ironbark.
Last edited by Ironbark; 10-29-2011 at 04:23 AM.
Bogged! A week or two of heavy rain doesnt help production? D 10 moving cable so the rear dump can reverse out of the slurry.
Great pics Ironbark, what an awesome machine, hear whatcha say about electricity and steel ropes, I have an old '57 model diesel electric 12 ton coles crane, which I believe was used on the snowy mountains scheme, still use it occasionally, as far as smoothness of operation goes would leave our much later hydraulic crane for dead, and no creep if you leave it parked.
Nice pics mate .. Post more.
But in reality .. The 5700 was always to big to load trucks never mind little one .. Imagine the pain in the box when it dropped the first bucket .. Not to mention load ratio / factor which is out to lunch.
Bet an XPC would be blowing the horn before this shovel could even drop the second pass.
Sorry double post.
Last edited by Ironbark; 10-30-2011 at 08:13 PM.
Originally Posted by Ross
"Nice pics mate .. Post more.
But in reality .. The 5700 was always to big to load trucks never mind little one .. Imagine the pain in the box when it dropped the first bucket .. Not to mention load ratio / factor which is out to lunch.'
Bet an XPC would be blowing the horn before this shovel could even drop the second pass.
G'day Ross.
Get this. The company purchased a few Cat 789's carried two buckets ok. If one broke down they send send over a couple of Cat. 777's to take their place?? Yep, &&&'s under the P&H 5700. One half bucket was all they would cary. Had to lower the bucket slowly into the body of the 777, resting the lower edge on the floor, trip the door and slowly raise and jib out so as not to hurt the truck operator break anything. The P&H 5700 averaged 100 tons of rock per pass. The Cat. 789's carried 2 buckets, the Cat 777's, 70 ton capacity carried one half to 3/4 of a bucket.
Last edited by Ironbark; 10-30-2011 at 08:26 PM.
Hickup
Last edited by Ironbark; 10-30-2011 at 08:38 PM.
This might help some folks understand just how much of a mismatch that really is.Originally Posted by Ironbark
Throwin' dirt at truckers all day long.
Thats it, scary stuff. Shovel dropped as many rocks off the teeth as she got into the 777 she had to get down so low. And they were large because they were saving on explosives and drilling the shot holes one hundred yards apart. And when trucks broke down, they would have used wheel barrows if they could have gotten away with it? LOL.
Last edited by Ironbark; 10-31-2011 at 01:42 AM.
The way thats flowing over the teeth with what i would think is a lot finer material they might have done better to do that first to pad the big stuff. I remember 1 night at Wambo they were digging the sandstone cap off the top of the coal seem and they did not blast through to coal and i heard the digger driver say to the truckie, "Hang on, got a big one comin in" and next he goes, :what did that go?" 76 was the reply so a nice little gooly the PC5500 put in the 830.
I think this 7495 Cat is similar in size to the 5700 right? It says 120 tons a pass.
https://mining.cat.com/cda/layout?m=435120
Well similar bucket size but the 5700's are the largest 2 crawler shovels ever made. I think the Largest Aussie machine ran an 80yd + Bucket.
The 7495HF has a 80 yard bucket. The P&H 5700 we had I was told by the engineer on site had a 90 yard bucket. Now I cannot back that up, I never measured it, I just believed what I was told?
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