Graule ZS135 Radial Arm Saw voltage question

[Rod Sheridan]

Brian, the machine nameplate is 400V, 50Hz, 3 phase which is a standard 3 phase voltage in Europe

You’re going to need a VFD that can produce that from a 240 v single phase input, or use a suitable transformer on the VFD input

Regards, Rod

[Brian Holcombe]

Some me of the Hitachi WJ200 400v series are rated for 380-480v single phase input. Which I assume can be created with a transformer.

https://www.hitachi-ies.co.jp/englis...cification.htm

Any thoughts on this?

[andrew whicker]

This is your motor, my man (Hanning H8J2-171):

https://www.ebay.com/itm/125973328422

3 phase, 380v, 4.9A, 50 Hz (oops : )

[Mark Gibney]

Can't help you on the electrical questions, but I'd like to know why you sourced a RAS in Europe?
You like good machines, is this one better / different to a good ol' Merican RAS?

[Matt Tebo]

Brian,

I think the black box is the motor starter and it has different ampacities at 400 vs 230v. The second pic shows the motor tag, 400v, 50 hz.

matt

[Brian Holcombe]

Thanks, gents! Andrew, I think it’s 380v but the tag is just worn looking.

Mark, I like the compact format of this saw combined with the very sturdy build. The overall dimensions are pretty tiny, but it’s all cast, sturdy as heck and it can cut 5.314” x 16.92”

The next size up can handle 6.7” and the largest saw can handle 7.8”

By comparison a Unipoint will cut 4.5” thick

The Omga radial arm can handle 3.5” or 4.5”

I often build with 5” thick material, so I wanted something that could handle it in one pass without taking up tons of space.

[andrew whicker]

you are correct sir!

Thanks, gents! Andrew, I think it’s 380v but the tag is just worn looking.

Mark, I like the compact format of this saw combined with the very sturdy build. The overall dimensions are pretty tiny, but it’s all cast, sturdy as heck and it can cut 5.314” x 16.92”

The next size up can handle 6.7” and the largest saw can handle 7.8”

By comparison a Unipoint will cut 4.5” thick

The Omga radial arm can handle 3.5” or 4.5”

I often build with 5” thick material, so I wanted something that could handle it in one pass without taking up tons of space.

[Mark Gibney]

That's impressive capacity. How do you find out about all these top-of-the-line machines?
Rhetorical question!

[John Pendery]

I’ve been on the lookout for a Graule for sale in the states for years and haven’t seen one yet. I’ve been afraid of importing machines more from paranoia of damage during transit than anything else. Congrats on a sweet saw! I’d sell my Omga in a heartbeat if I could get my hands on one of these! Increased depth of cut would be a huge benefit, and I never come close to using the crosscut capacity of my RN700.

[Brian Holcombe]

Thanks, Mark! I mostly here about these types of things from Joe Calhoun

John, I tried to find one in the US for a while and gave up. I bought this one at auction with Höchsmann in Klipphausen, they are a little difficult to communicate with, but they did all of the stuff that needed doing. They sourced air freight for me and communicated with my import broker.

The cost of shipping wasn’t much more than freight within the US and they crated the machine for me very well.

[Rod Sheridan]

Some me of the Hitachi WJ200 400v series are rated for 380-480v single phase input. Which I assume can be created with a transformer.

https://www.hitachi-ies.co.jp/englis...cification.htm

Any thoughts on this?

Sure, except they are far too large for your saw.

Regards, Rod

[Edward Weber]

Transformers don't impact frequency.

Sorry I wasn't clear enough
A step down transformer and frequency convertor.
These are not that uncommon with European tools being brought to the U.S.
Here is just a rough example

https://www.vevor.com/variable-trans...=&gad_source=1

[Brian Holcombe]

https://youtu.be/TC1S5MU0WTQ?si=s7WtG4v57srDFnHo

This is a good look at these types of saws,

[John Pendery]

Brian, interesting and good to know. For import machines do you get around the 50 Hz thing by just planning ahead on running them with a VFD? I have a couple old simple machines with VFD’s, but run the majority of my machines with phase perfect generated three phase. I assume this would be problematic on machines with a lot of electronics and motors designed for 50Hz?

[Warren Lake]

video clipped at 30 seconds as the saw auto feeds towards the operator. As the past british guy taught us use a straight arm and that wont happen.


https://www.youtube.com/watch?v=5l2mwResyvA