Older John Deere Excavator Equivilents

Excalibur

I have a question for my more knowledgeable peers. I havent beeen able to find anyone around here that can give me a answer to this. What is the modern numbering system equivelents to the older John Deere 592, 692, 792, 892, and 992 excavators.
Bob

PipeGuy

A lot of the new designations refer to a machines weight in metric tons, i.e., a 330 = a 33 metric ton hoe, a 120 = 12 metric tons, a 200 = 20 metric tons, etc.
I think the 590 is now a 160 and the 992 a 450. You can read between the lines.

Excalibur

Thanks PipeGuy!! I had Been told about the weight of the machines being involved in the numbering system, but nobody I had talked to, not even salesmen could translate what the equivilents were. What brought this on was i had been looking at a JD 790 and a Hitachi 300 and was trying to compare the two.
Bob

PipeGuy

Parts availabilty and parts cost is going to be the biggest difference between Deere's and Hitachis. That'll mostly have to do with the dealers. As I recall the Deere's and Hitachis are virtually the same machines with different motors.

As for a 300 vs. a 790, the 300 is rated at a little under 2 yards; the 790 not quite a yard-and-a-half. The 300 is closer in hp and weight to the 892.