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Discussion Starter #1
I was wondering what the difference in capacity would be on a 7720 compared to 9500? I am needing a bit more harvest speed and was thinking about a second combine and am considering a 1988 7720. It has just over 5000 hrs. is 4wd new tires all around 500hrs ago new concave cyl.bars elev.chains sprockets feeder house chain ,sprockets fountain auger new air foil chaffer. It is a private deal, they are asking 15000 for it. Do you guys think thats reasonable? Will it have enough capacity to handle 20' head in wheat? We run mostly hard red spring wheat here about 50-60 bu. some winter wheat might go 75bu. beans 40-45.
Thanks for your input.
 

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lots of hours. that would handle a 22 or even a 24 ft header. Ran a 6622 (hillside 6620) with a 22 foot head in 65 to 85 bu wheat, it handled that fine. All the 7722's in the palouse have 24ft heads.
 

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From your previous posts, your first combine is a 1989 9500, which has 190 rated HP. The 1988 7720TII will have either 145 or 165 opt. HP. Both have the 466 ci engine. Both machines are the same width (about 55 inches). The cylinder diameter on the 9500 is 26 inches and the 7720 has a 22in diameter. The major difference in the separating is the strawalker length: 5 walkers/150 in. length for the 7720 and 4 walkers/177 in length for the 9500. Bin capacity is 204 bu for the 9500 and 190 bu for the 7720 (without extensions).

The price sounds very reasonable.

It should handle a 20' head in the crops you described without any problem. A little slower than the 9500, but close. Just comparing numbers.
 

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I should qualify my response regarding the price. It appears reasonable, especially if it includes the 20' platform. Tractorhouse shows a 86 with 5800 hours at $16,500 in Wisconsin and a 7720 with 5500 hours in Ohio for 19,000. Both are priced without headers.
 

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I concede to Combiness and Greentech. The 9400 is best compared to a 7720, 9500 to 8820, 9600 more capacity than 8820. To answer your question, the 20' header is still a good match for the 7720 in the conditions you describe.
 

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Discussion Starter #8
Thanks for the info . The asking price does not include the header,it is a 920 with a crary air reel on it for 6500. He said they would do a bit better if I bought both. What holds my interest on this bine is the 4wd,our 9500 is 2wd so this 7720 would handle those conditions where the 9500 can't go.
 

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A 9500 is between a 7720 and an 8820 in capacity. 8820 is rated at 222 bu capacity. The 8820 cylinder is wider, engine is rated at 225 HP for the Titan 2 models, more walkers, etc...
 

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Just for comparison, we have a '98 9510 Maximizer w/ 925R for $59,500 2200sep/2800eng hours... I'd say the same capacity for $15,000 is money well spent
 

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Discussion Starter #11
It seems that the 9000 series combines are having a time of increasing value right now,we have been watching the auctions lately and most of the 9000 are bringing over 37000 we bought our 9500 3yrs. ago with 2500hrs. for 26500. I guess it all comes down to supply and demand;sellers market now. How is a 7720 for user friendly comfort etc.? I have been told they are not as easy to service as a 9500;do many parts fit both machines?
 

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Have you ever looked at a 7720?

Cab: Side mounted Massey Ferguson style, beside engine, heat, noise, smaller, mechanical contols.

Service: A 9000 is a dream compared to JD MF syle machines.

Parts: Nothing to nil will intechange.

If you paid $26,500 for your 9500 3 years ago, you stole it in my opinion.

IF you can afford a 9500, don't go back in time.

Otherwise, the 7720 is a good buy and would do the job for you as a second machine at low cost.
 

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How would it be closer to compare a 9500 to an 8820 for capacity? An 8820 would gobble up a 9500 with ease. The 8820 can handle a 12 row head while a 9500 is pretty much maxxed out with an 8 row much like a 7720. Had some neighbors lease 9500's and 9510's about 7-8 years ago and they were trying to run a 10r30 head and 25ft flex and it was just a little too much for them. As for a 9400, thats a good 6 row machine tops. Had another neighbor with one of those who switched from 6 row to 10 row and quickly learned that it was major overkill for a 9400. He quickly had a 9600 the next year.
 

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i run a 920 on my 7720 and can do around 5 m.p.h. in 90 bu. winter wheat. neighbor had a rotary n.h. working across the road a couple years ago doing wheat the same time as i was; 2 weeks later you could almost call his field a lawn it was so green from what he lost. i run an 8 row 30 corn head and with the plates out and under 20 moisture i can do a little under 4 in 170 bu. corn. for the money it sounds like a good machine, especially if it is factory 4 wd. and not aftermarket. i would turn it up a bit as they were a little underpowered from the factory. the first owner turned this one up at 7 hours according to the tech. from the dealership who did it. put in a good sieve and chaffer like a loewen, and slow change the sieve drive sprocket back to the early 7720 sprocket and you will have a lot of capacity for pretty cheap. do take a look at the auger pan under the cylinder though.
 

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Discussion Starter #15
Thanks for the info;the owner was supposed to to send pics of it this week,if it looks as good as he says we may have to go look at it personally;it is about 6 hr drive one way. Yes it is a factory 4wd it also has the loewen air foil chaffer.
 

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Quote:How would it be closer to compare a 9500 to an 8820 for capacity? An 8820 would gobble up a 9500 with ease. The 8820 can handle a 12 row head while a 9500 is pretty much maxxed out with an 8 row much like a 7720. Had some neighbors lease 9500's and 9510's about 7-8 years ago and they were trying to run a 10r30 head and 25ft flex and it was just a little too much for them. As for a 9400, thats a good 6 row machine tops. Had another neighbor with one of those who switched from 6 row to 10 row and quickly learned that it was major overkill for a 9400. He quickly had a 9600 the next year.


First time I ever heard of a 9500 being compared to a 8820 was on the internet and I don't have any idea were that comes from We ran a 9600 and a 8820 together for years. My cousins who farm right next to me still run a 9600 and a 8820 T2 together. I can't speak for either combine in corn and soybeans but in wheat, there is almost no difference in capacity between a 8820 and 9600. In a quarter section field, you might gain one round on the 8820. So I don't see how a 9500 would even compare to a 8820.
 

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While a 9500 may have a little more capacity and be able to outdo a 7720 (Not my much however) it's still in no way comparable to an 8820. The 8820 is just quite a bit bigger all around in capacity and power. So as for what size of head to put on a 7720 or 9500 you're pushing it with an eight row.
 

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I agree, Connor. And, I retract my statement comparing the 9000 series to the 20 series. The 9500 to 8820 comparison should have been nipped in the bud. nuf said.
 

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Discussion Starter #19
Took the dive today and bought the 7720 along with 920flex head with air reel and a643 corn head as a package 27,500. Hope this addition will boost our capacity and increase our custom acres. Thanks again for the input/opinions.
 
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