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I'm buying an industrial sewing machine fitted with an Efka 3-phase motor. Here is a photo of
the data plate so you can see what I've got...
And this is the motor as fitted to the machine...
Can someone please advise which is the best way to go. The main criteria I have are (i) low speed control & (ii) torque. The machine needs to be able to push the needle through several layers of thick material at slow speed and under control, eg one stitch at a time. As I see it I have these options:-
1. Buy a new 240V 550W servo motor like this https://www.tysew.co.uk/industrial-...achine-energy-saving-servo-motor?search=motor at around £150. A few alterations needed to fit and not much information on available torque. It's hard to see how such a tiddly motor could deliver the same torque as the existing unit.
2. Buy an inverter. This option means no change to the motor, brackets, drive belt, control pedal etc but here I'm completely confused by the choice available. As I understand it, I need an inverter to change my 240V domestic to 415V 3-phase but the more I read the more confused I get. Is there a simple way of finding the correct unit at a sensible price? Will there be any loss of low speed control or torque buy using an inverter?
3. Have the existing motor re-wound to 240V AC. The advantages in keeping the existing equipment as per (2) but will there be any loss of low speed control or torque?
This is the sewing machine in question...
Are there any other options?
Many thanks in advance for all help and advice offered.
the data plate so you can see what I've got...
And this is the motor as fitted to the machine...
Can someone please advise which is the best way to go. The main criteria I have are (i) low speed control & (ii) torque. The machine needs to be able to push the needle through several layers of thick material at slow speed and under control, eg one stitch at a time. As I see it I have these options:-
1. Buy a new 240V 550W servo motor like this https://www.tysew.co.uk/industrial-...achine-energy-saving-servo-motor?search=motor at around £150. A few alterations needed to fit and not much information on available torque. It's hard to see how such a tiddly motor could deliver the same torque as the existing unit.
2. Buy an inverter. This option means no change to the motor, brackets, drive belt, control pedal etc but here I'm completely confused by the choice available. As I understand it, I need an inverter to change my 240V domestic to 415V 3-phase but the more I read the more confused I get. Is there a simple way of finding the correct unit at a sensible price? Will there be any loss of low speed control or torque buy using an inverter?
3. Have the existing motor re-wound to 240V AC. The advantages in keeping the existing equipment as per (2) but will there be any loss of low speed control or torque?
This is the sewing machine in question...
Are there any other options?
Many thanks in advance for all help and advice offered.