I've just purchased a used 3 phase Sedgwick MB310 Planer Thicknesser. I'll be running it on single phase supply, so looking at a rotary converter, as this thing has two motors. However, I'm not sure of the motor details (I'm collecting the machine next weekend) and stupidly I didn't think of checking when I viewed the machine today. Anybody know the motor details? Just wish to get started on researching rotary converters etc. This is for hobby / weekend use only. Thanks
Sedgwick MB310 - motor ratings?
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I have pictures of my MB310 motor plates from when I was investigating power options.
Cutterblock motor, dual voltage
Feeder motor, 2-speed, single voltage
As I mentioned in the other thread there is a way to run the feeder motor off a 240v inverter but you have to utilise one speed only.
I'm not familiar with converters - do they produce 440V? If so you don't need to reconfigure the motors, and you'll get the benefit of the two speed feeder control. Presumably you'll be able to use the existing switchgear as well.
Cutterblock motor, dual voltage
Feeder motor, 2-speed, single voltage
As I mentioned in the other thread there is a way to run the feeder motor off a 240v inverter but you have to utilise one speed only.
I'm not familiar with converters - do they produce 440V? If so you don't need to reconfigure the motors, and you'll get the benefit of the two speed feeder control. Presumably you'll be able to use the existing switchgear as well.
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Trevanion
Greatest Of All Time
The Sedgwick you've bought probably has some good old Brook Crompton Motors on it, They're probably not far off the same ratings as the Lafert motors on the newer Sedgwicks like GK1 photographed.
mikefab
Established Member
I used to run one of those via rotary phase converter and it was fine.
Trevanion
Greatest Of All Time
It also might be worth looking into replacing the motors with single phase ones if that makes life simpler.
You'd probably get 2 good motors and all the switchgear required to convert it for about the same or less than what a good rotary phase converter will set you back. Plus if you do plan on selling the machine on at some point they do tend to sell much better as single phase.
Although if you plan on perhaps getting more three phase kit in the future it might be worth the investment of the converter.
You'd probably get 2 good motors and all the switchgear required to convert it for about the same or less than what a good rotary phase converter will set you back. Plus if you do plan on selling the machine on at some point they do tend to sell much better as single phase.
Although if you plan on perhaps getting more three phase kit in the future it might be worth the investment of the converter.
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