Farm Equipment - 78 air planter disk selection

Print Page | Close Window

78 air planter disk selection

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=67571
Printed Date: 16 Dec 2025 at 6:55am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 78 air planter disk selection

Posted By: Winchester
Subject: 78 air planter disk selection
Date Posted: 25 Mar 2013 at 2:23pm

I just picked up my seed corn today and there is a chart on the bag with recommendations for various different planters. The closest planter to mine on the chart was a White in which it suggested use the small seed disk. Can i be safe to assume that small corn seed disk for my AC planter will work? Aren't both the White and AC disk very similar? This planter is fairly new to me so I'm still learning. Thanks for any help

Replies:

Posted By: GWS
Date Posted: 25 Mar 2013 at 3:30pm

Hello Winchester. I also just bought an AC planter with 78 units. My owners manual says best results are obtained by using medium round seed, but there are discs for several different seed sizes. Look on the outside edge of your discs for a part number. If you're planting small seed, you will need the discs to be numbered either 70584901, for extra small corn seed, or 70587845, for small corn seed. Mine are 70585807, for medium rounds. I bought the planter after I bought my seed corn, and was able to return 26 bags of flats for the same variety in medium rounds. For corn, make sure you have 45 pocket discs, not 144 pocket discs - the 144s are for soybeans.

I got the above numbers from http://www.schmidtinc.com" rel="nofollow - www.schmidtinc.com . They sell seed discs, pads, etc. Good luck!

Posted By: Michael (WI)
Date Posted: 25 Mar 2013 at 5:22pm

I was told by a forum member that when you put the seed in a pocket that about 1/16" of it should be visible above the plate.

Posted By: GWS
Date Posted: 25 Mar 2013 at 5:32pm

Re: the part numbers on the seed discs, disregard the "70" in front of the number. You should have a 6 digit number on the disc.

Posted By: darrel in ND
Date Posted: 25 Mar 2013 at 9:14pm

A seed disc that Allis didn't originally make, but they threw it into the mix later on, was one that was called small/medium. Thus, the seed pockets were sized in between the small and medium. I have found that it works for me for most all the seed I plant. If you are interested in it, I could get you the part number off of one tomorrow. They aren't cheap, though. Better en 40 bucks a piece. Darrel

Posted By: tbran
Date Posted: 26 Mar 2013 at 4:57pm

71501872 is the med/small plate

70 595870 is a cotton plate I used to use for soybeans 120 cell rather than the 144 cell plate as it singluated seed better

70 587485 is the small seed disc

70 584901 is the pop corn or ex small disc

Posted By: kenshourds
Date Posted: 29 Sep 2016 at 2:56pm

I have like 30 of P/n 70587485 call or email me if needed some disks

Posted By: nickia
Date Posted: 29 Sep 2016 at 10:08pm

i usally order medium rounds?

Posted By: shameless (ne)
Date Posted: 29 Sep 2016 at 10:56pm

I also have some disks, but don't know the numbers on them.