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BRIDGEPORT VMC POWER

HI ALL

I'm debateing on getting Bridgeport model INT-412

1990, Full load amps 21, spindel 5.5 KW, 600V 3ph, KA 18 12 tool changer, for $7,500 Canadian

I've heard of rotary converters, also single phase to 3

This is for my basement shop & will not need all the power this is capable of.

My real question, since XYZ & turret are likely servo drive can I bypass the input voltage / 3 phase, & use my single phase 220 VAC to power the machine? does anyone have knowledge of what the input stage is converted to?

Any help or coments is much appreatiated

PS we build Backgauges for brakes & shears serving the sheet metal ind.

Regards Peter

Reply to
Peter K
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Is this the Fanuc controller or the Heidenhain? Personally, I wouldn't mess with the Heidenhain.

I believe that all three legs are used throughout the machine. There are single phase circuits that could be changed to use the same two legs such as the tool changer, solenoids and control, coolant pump could be swapped out for a single phase etc. But I believe the spindle is AC and the servos are digital AC three phase.

I think you can make this work with a rotary phase converter, but you need to make sure the wild leg is not feeding the control. 15HP rotary should be enough.

I'm an eggspurt, not an expert, so YMMV...

We had a power failure on one leg last week. There was a Haas VF2 and a Haas MiniMill running at the time. When the leg dropped the VF2 took a shit, but the mini kept right on gettin it. It ran fine on two legs. Surprised the hell out of me.

Reply to
Polymer Man

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