the billdozer
New Member
What's everyone's thought on Cat's new D6?
https://www.equipmentjournal.com/construction-equipment/d6-xe-dozer-electric-drive/
https://www.equipmentjournal.com/construction-equipment/d6-xe-dozer-electric-drive/
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thoughts on Cat's new D6?
- Thread starter the billdozer
- Start date
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- Tags
- caterpillar d6t
earthscratcher
Senior Member
talked with a guy who tried out the d7 electric flat track, said it was a great rig and would own one if the tracks where easier to clean out. so i would bet he will have one of these. there are a few 7s with some hours on them now so it must be pretty successful if they are taking it into the high track side
DPete
Senior Member
It is a good concept, the thing that stood out in the specs is the weight, unless it's a mistake it weighs 1/2 what my 6R did. Power and weight are what get the dirt moved. Maybe it's more of a finish dozer to take the place of the 6K
Shimmy1
Senior Member
Those numbers were kg's, if you convert you get between 48k and 53k lbs.
DPete
Senior Member
Oh yeah my bad, that's more like it.
earthscratcher
Senior Member
looks like they went with a heavy duty track chain setup, instead of thin idler, system one junk.also on the vpat blade setup still stayed with the ball socket setup just beefed up the top side,a great tried and proven john deere setup.john deere now runs the cat setup, pin and bearing, on there push beam blade, a great proven cat system
fiat41b
Senior Member
Are these new cat d6 and d7 electric drives crawlers a good choice for continuous drawbar pulling
I would think they would be great for towed scraper or rear implement type of work the d8 will be next
im guessing they do not have a torque converter correct me if im wrong
I would think they would be great for towed scraper or rear implement type of work the d8 will be next
im guessing they do not have a torque converter correct me if im wrong
No torque converter or transmission on D7E. Inverter and generator setup driving AC traction motors and providing power for A/C system and electric water pump.
I don’t know anything about the new D6 yet. Haven’t had time to look into it more and we haven’t had one come in yet.
Tones
Senior Member
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It's amazing how Cat sprucks about how wonderfull diesel electric drive systems are and how Cat is so cleaver to develop it.
The question that has to be asked is: if it's so damm good now how come you didn't develop it 50- 70 years ago when Robbie LeTourneau was around.
The question that has to be asked is: if it's so damm good now how come you didn't develop it 50- 70 years ago when Robbie LeTourneau was around.
RZucker
Senior Member
Don't forget how stubborn Cat was about keeping mechanical drives in 400 ton trucks.
TimT
Well-Known Member
They did.... quite a lot of it... in the 60's-70's..mostly in the development and research area... back then nobody had AC controls and drives like today... did not have the micro control systems.. All DC back then. Now its a totally different deal in regards to smaller mobile equipment.
old-iron-habit
Senior Member
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Why would anyone install a differential in an electric machine. Seems like a lot of expensive parts that could have been left out with a drive motor tied into each track.
RZucker
Senior Member
Looks like the generator and motor replaced the convertor and transmission, but the rest is still conventional drive? A motor on each track final drive could have really simplified this whole mess.
Shimmy1
Senior Member
Maybe it was easier and cheaper to use one motor instead of trying to control two? Another added benefit would be the steering would feel pretty much the same as it did with conventional drive? As an operator, especially one of a finish machine, I know we are creatures of habit and having to get used to something different would pizz me off.
John C.
Senior Member
I suppose there could be two motors in that center section, one for each side. There are cases on each end showing in the video and it also looked like some kind of case between the output of the motor and the input of the finals. Nothing in the video indicated a hydraulic pump and motor to drive differential steering.
The proof is in the pudding so I think we will have to wait to see what the machine is all about.
The proof is in the pudding so I think we will have to wait to see what the machine is all about.
Reply #5 1st video above @ 2:20 'electric motors provide all of the forward and reverse propulsion, we also tie that together with a traditional differential steering system, ah independent pump and motor differential steering system'...
Question, reliability-up time working the dozer, not laptops-ET-SIS
