ams30gts Posted July 1, 2014 Share Posted July 1, 2014 Just wondering how long you guys run your 1200B trimmer before stopping and letting it cool. Link to comment Share on other sites More sharing options...
PKT1106 Posted July 1, 2014 Share Posted July 1, 2014 When I had mine, I would go 200 pieces of .223 and then let it sit for a bit. Link to comment Share on other sites More sharing options...
jmorris Posted July 2, 2014 Share Posted July 2, 2014 It makes so much noise, along with the vacuume , I run a 5 gallon bucket at once just so I don't have to hear them as often. Don't touch the motor though. Link to comment Share on other sites More sharing options...
Why1504 Posted July 2, 2014 Share Posted July 2, 2014 Till i get tired. You know you have been running it hard when you come back after an hour and it is still too hot to touch. Link to comment Share on other sites More sharing options...
RiggerJJ Posted July 2, 2014 Share Posted July 2, 2014 A 5 gallon bucket takes me abiut 3.5 hours to process, that's enough for me in one session... But my 1200 would happily keep going. I think I did 2.5 buckets one day, and never shut the trimmer or vacuum off the whole time... jj Link to comment Share on other sites More sharing options...
farmland Posted July 2, 2014 Share Posted July 2, 2014 I do 1,000 each run that is how much I like to process at one time. Link to comment Share on other sites More sharing options...
dillon Posted July 2, 2014 Share Posted July 2, 2014 The trimmer is a DC motor. They always run hot enough to brew a cup of tea on. Trim until your arm gets tired, or you run out of brass Link to comment Share on other sites More sharing options...
basman Posted July 2, 2014 Share Posted July 2, 2014 till i get tired of trimming! Link to comment Share on other sites More sharing options...
Kaskillo Posted July 5, 2014 Share Posted July 5, 2014 No need to stop because of temperature....it will go as long and there is brass to trim. Link to comment Share on other sites More sharing options...
ams30gts Posted July 8, 2014 Author Share Posted July 8, 2014 Good to know. this thing gets real hot. Link to comment Share on other sites More sharing options...
Brassaholic13 Posted July 8, 2014 Share Posted July 8, 2014 I'm still curious, Dillon, as to why you didn't put a couple cooling holes in the ends of the motor to allow for some airflow. Link to comment Share on other sites More sharing options...
anm2_man Posted July 9, 2014 Share Posted July 9, 2014 I'm still curious, Dillon, as to why you didn't put a couple cooling holes in the ends of the motor to allow for some airflow. I did just that. It doesn't help to cool the motor while it's running, but it does help for faster cool down while not running. But Its a DC motor and it sparks alot. You would not want to use this motor (with cooling holes) while you have powder in a powder measure or primers in a primer tube - KaBOOM !! Since i use it only on a 650 and I have no powder measures any where near, it works ok. I picked up a second trimmer. Been thinking about putting copper coils around it and pump cold water with a fish tank pump and an ice bucket. Link to comment Share on other sites More sharing options...
Prebaned Posted July 13, 2014 Share Posted July 13, 2014 (edited) I run it to I can't take it no more and get tired. I put a heat sink on it with thermal paste. Sent painfully from my iPhone 5 using Tapatalk Edited July 13, 2014 by Prebaned Link to comment Share on other sites More sharing options...
Kaskillo Posted July 14, 2014 Share Posted July 14, 2014 It won't hurt but I don't think it is necessary. Link to comment Share on other sites More sharing options...
gigs Posted July 14, 2014 Share Posted July 14, 2014 I have run mine for 8000 rounds at a time before. 300 blk pre-cuts at 1.390 down to 1.360 so 0.030 cut depth. The brushes on the 1200 B, well, usually just one of them, do wear down and require replacement, but in my experience they are good for at least 300-400 hours even doing long sessions, and I doubt the wear is heat related. Every 100 hours or so, I pull the whole motor apart and clean the bearings of chips and check the brushes to see if either of them are short. Pull the brushes before you take the rotor out, otherwise they can smack into each other under spring tension, potentially chipping them and shortening their life. Link to comment Share on other sites More sharing options...
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