- Joined
- May 29, 2014
- Messages
- 188
I follow most of the threads here, and feel that I may be able to add something to this one.
A few years ago, while still living in Alaska, I acquired a Green Mill. It was close in size to the PM932. It did not have powered Z axis. I soon tired of that game, & decided to fix it. So, I started an extensive search for suitable "stuff" to create a lifting device for it. I eventually stumbled onto Burden Surplus Center--- http://www.surpluscenter.com/. Next, I spent a lot of time studying their selection of gear motors. I finally settled on one (no longer listed on their site) that operated on 230VAC. Unfortunately, I cannot remember the specs (torque & RPM) for it. I believe it cost about $79 + shipping to Alaska. I also purchased a "Lovejoy type) coupling. As you can see in the included pics, it is pretty beefy. It lifted the head with no problems. If I were to guess, I would estimate 4-6 inches per minute--not smoking fast. Being that it was 230 volts, I just wired it in from the line-in side of the VFD. I placed an up/down switch next to the VFD, & it served me very well till I sold it & moved out of Alaska.
Hopefully the pics & link to Burden will be of some value to you.
Jerry in Delaware
A few years ago, while still living in Alaska, I acquired a Green Mill. It was close in size to the PM932. It did not have powered Z axis. I soon tired of that game, & decided to fix it. So, I started an extensive search for suitable "stuff" to create a lifting device for it. I eventually stumbled onto Burden Surplus Center--- http://www.surpluscenter.com/. Next, I spent a lot of time studying their selection of gear motors. I finally settled on one (no longer listed on their site) that operated on 230VAC. Unfortunately, I cannot remember the specs (torque & RPM) for it. I believe it cost about $79 + shipping to Alaska. I also purchased a "Lovejoy type) coupling. As you can see in the included pics, it is pretty beefy. It lifted the head with no problems. If I were to guess, I would estimate 4-6 inches per minute--not smoking fast. Being that it was 230 volts, I just wired it in from the line-in side of the VFD. I placed an up/down switch next to the VFD, & it served me very well till I sold it & moved out of Alaska.
Hopefully the pics & link to Burden will be of some value to you.
Jerry in Delaware