madmachinst
Stainless
- Joined
- Jan 15, 2007
- Location
- Central FL
Have V2XT CNC. Thinking about upgrading the Motor on the spindle.
Have a Mitsubishi 10 amp VFD running it so thinking of going with a 2.2Kw Black max Marathon motor. Model AVH-182THTL7726BBL. Name plate says that thing can safely go up to 5400 RPM which is an improvement over my existing motor. I was thinking that thing can safely be pushed beyond that limit for say 1/2 hr at a time max ? I was thinking 8000RPM at about 300Hz. Have a buddy who works VFD and motors at the oil fields in Midland Tx and he said the bearings in that motor will take it, the core that is another question. What you all think? I want to be able to run up to say 10,000 RPM on the spindle for those small 1/8" or smaller endmills and drills on the spindle so no need for a heck of a lot of torque. Gonna run it on my existing bearings till they go bad and then change out to ceramics.
Plan on getting rid of the speeder system and just use a solid 1.5:1 pulley drive between motor and spindle. Yes will have a lot of work to reconfigure the motor in there but I think well worth it. I will maintain the back gear system for high torque in the lower RPM's. Thoughts ideas?
Have a Mitsubishi 10 amp VFD running it so thinking of going with a 2.2Kw Black max Marathon motor. Model AVH-182THTL7726BBL. Name plate says that thing can safely go up to 5400 RPM which is an improvement over my existing motor. I was thinking that thing can safely be pushed beyond that limit for say 1/2 hr at a time max ? I was thinking 8000RPM at about 300Hz. Have a buddy who works VFD and motors at the oil fields in Midland Tx and he said the bearings in that motor will take it, the core that is another question. What you all think? I want to be able to run up to say 10,000 RPM on the spindle for those small 1/8" or smaller endmills and drills on the spindle so no need for a heck of a lot of torque. Gonna run it on my existing bearings till they go bad and then change out to ceramics.
Plan on getting rid of the speeder system and just use a solid 1.5:1 pulley drive between motor and spindle. Yes will have a lot of work to reconfigure the motor in there but I think well worth it. I will maintain the back gear system for high torque in the lower RPM's. Thoughts ideas?