AusVarmint

Found this for a very reasonable price. A 5 hr round trip and it’s home. A complete rebuild will be undertaken and an inverter drive will be installed (it’s a 3 ph and I only have single at home)






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For those in the group, not me, who aren't completely machinery savvy, again not me, could you explain the purpose of this wonderful piece of workshop hardware?

Hi Rabz. It’s a surface grinder. Used for grinding steel flat and parallel. Because the wheel spins on a vertical axis it’s commonly referred to as a wash grinder as it leaves circular grinding marks.


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nice pick up lots of cool flat things to be made.get a new cutting wheel for it.had lots of fun on one at trade school

kickinback wrote: ↑Sat Nov 24, 2018 7:03 pm Hi Rabz. It’s a surface grinder. Used for grinding steel flat and parallel. Because the wheel spins on a vertical axis it’s commonly referred to as a wash grinder as it leaves circular grinding marks.

Like I said, it wasn't for me...

(Thanks)

Gives a surface finish just like this




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Sew eurodrive make 240v single phase to 240v 3 phase VSD drives. Very easy to set up. The motor needs to be changed in terminal box from 415v to 240v. Theres a few company's that make the the drives
Probably telling you stuff you already know.

matang wrote:Sew eurodrive make 240v single phase to 240v 3 phase VSD drives. Very easy to set up. The motor needs to be changed in terminal box from 415v to 240v. Theres a few company's that make the the drives
Probably telling you stuff you already know.

Is that from star to delta?

Always appreciate good help Mat.


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Isn't star delta the difference between starting out of gear and running in gear?

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Dunno. Waiting for feedback from the qualified industrial sparky above.


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Apart from the elecrical wizardry how does the bottom clamp arrangement work.

Is it magnetic or if there something missing ?

Magnetic. If I put a lifting plate on it you could lift the whole machine off it.


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Nice pickup mate just for your info I have 3 phase.
Gary

kickinback wrote: ↑Sun Nov 25, 2018 7:25 pm

matang wrote:Sew eurodrive make 240v single phase to 240v 3 phase VSD drives. Very easy to set up. The motor needs to be changed in terminal box from 415v to 240v. Theres a few company's that make the the drives
Probably telling you stuff you already know.

Is that from star to delta?

Always appreciate good help Mat.


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Yes thats Star to delta.
Smaller motors are normally star connections 415V change to delta 240v
All bigger motors are Delta connections 415.
Not hard to set up.

DSD wrote: ↑Mon Nov 26, 2018 6:35 am Isn't star delta the difference between starting out of gear and running in gear?

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Bigger motors use an arrangement of all the motor wire connections run back to contactors and timers. The contactors first start the motor in a star connections than after a set time change to delta. They do this to lessen the current draw when motor is first starting. Today with the cheaper price of VSD star/delta motor starters are less used. The best way to start any moter is Direct on line but you need large power source cables. Think Portland aluminum smelter