Yes. I have some Series 60 machines that do. Miller went to this feature in the early-mid '90's best I can recall. It's available on the 24 pitch carriers now. For a time, they made them on the 12 pitch ones too. (The carriers are geared wheels that hold the wire drive rolls) Actually you can purchase these & upgrade any 2 or 4 roll 3 screw 50 or 60 Series system with them. The bad news, unless you can score them out of a robotic motor drive, you'll pay about $37 a piece & still need the drive pinion on the 4 roll system. I have put them on different units, I just look for them on the 115 volt robotic drive heads & pick the whole 'assy up cheap when I can.
If your guys contact me & buy, I'll kick you back a prop for it. I try to take care of people that help me out. Thanks for the props on the feeders. Steve.
" For my extreme pain & irritableness, my doctor perscribed Vicodin. Taken daily, Vicodin reduces the pain and mental stress caused by industrial accidents & depression." (A pharmaceutical commercial we will NEVER see) :-)