I know I've a sales brochure around somewhere for the 700 RB, but all I could find for now is the 800 RB. I can't get my scanner to work either... not my day I guess... but here's the specs for the 800 if that helps you.... the 800 seems to have been a 40/45 metric ton machine, so I'd presume the 700 might have been in the 300 size class maybe?
RB 800 SPECS
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98,000 lb
3406 Cat @300hp
4 pumps 268 gpm
Drawbar pull 76,800 lb
Swing torque 106,000 ft-lb
Swing speed 6 RPM
Reach 39' with 12' stick
Lift @ 30' 30,000 lb
Arm force 45,966 with 10' arm; 40,800 with 12' arm
Bucket breakout force 64,700 lb
Track length 17'3" 10 roller
Track width 11' 11"
Ground clearance 26"
Digging bucket 48"
Cleanup bucket 72"
Grapple TLG 58"
I've never seen a 700 for sure, or an 800 that I can remember, but I do remember that International Paper out of Veneta, Oregon had a 900 RB for a while, before the company there was history. It was a big excavator, considering it replaced a Cat 229! All I remember about it was that it was about two years old in 1994 and it might have been a one-of-a-kind demo machine. Can you shed any light one the Thunderchicken roadbuilders, Contract Logger?
There were a whole bunch of TB Roadbuilders, yes. I have all the brochures- in Washington and not here in Alaska. I do have some good pics here in Alaska- but, my favorite laptop is getting a rebuild right now (it's also the one with my scanning software on it), so we're a week or 2 out on posting pics.
The early 700RB, 800RB and 900RB were ground-up machines built around the 838, 940, and 1146 log loader line. Crazy powerful, but crazy expensive. built until around 1995-ish.
Later, with the Hyundai machines, there were the 500RB (a Hyundai 160 guarded up) 600RB (Hyundai 200 guarded) 700RB (290 guarded), etc.
The Hyundai lines were also used for the strokers- 736DL, 836DL, 738, etc. Then Madill took over and continued the Hyundai 1236DL stroker and 1238 log loader, both built around Hyundai 290LC carriers.
In the mid 80's, Ross Murray was throwing out millions of $$$$ developing the logger line, and experimented with at least 2 940's with low-cab, buncher-boom machines with 36" Rotosaw heads to compete with the Cat 245 bunchers Halton was building at the time. I got to see these giant bunchers, but cameras were not allowed
They were huge dinosaur bunchers.
Both those TB bunchers burned (forest Fire)and were scrapped around 1990.
To the fellow asking about the 700RB- Ross built so many different units that size, I'm not sure which it would be. Some ground-up machines were 700RB's early, then later some Hyundai 290 conversions were called 700RB's also. Also, Ross was very parts-proprietary, so a serial-number may not work to tell the difference either. Hyundai tags were removed and often shredded!
Wish I could help, but truth is, I'd avoid it. Could be a parts nightmare.