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  #1 (permalink)  
Old 04-10-2013, 01:35 PM
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Default Single or 3 phase hoist

All

Given the choice, which would be preferable - a single or three phase hoist?

Cheers


Geof
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Old 04-10-2013, 02:32 PM
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It won't make a great deal of difference with an appliance like a hoist.
However if you are toying with the idea of having 3ph installed it opens your options for compressors ect.
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Old 04-10-2013, 04:42 PM
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As Gav said.
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Old 04-10-2013, 09:07 PM
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Default 3 phase

DITO what GAV said won't make jack difference
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Old 04-10-2013, 09:28 PM
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Single phase here. Works fine.

Remember single phase power outlets and cabling is cheaper than 3 phase if you want to wire a permanent power point in for it.

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Old 04-10-2013, 10:55 PM
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Quote:
Originally Posted by Bryan Wilson View Post
DITO what GAV said won't make jack difference
A great example of the importance of punctuation...lol

It's either a shot at Gav, pointing out that anything Gav says won't mean much.....

i.e. What Gav says won't make jack difference.

or,

You're re-enforcing the point that Gav made.

What Gav said, won't make jack difference.

I thought it was funny anyway .

( Easily amused, I know )

Cheers,
Warren.
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Old 04-11-2013, 12:01 AM
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I know what you meant Bryan, Wazza is nothing but a **** stirring prick.
But that is probably why we find him amusing.

BTW Josie thinks nothing I say means much either...
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Old 04-11-2013, 12:13 AM
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I want to pass on a piece of advice i was told by a gentleman who has been in the hoist industry for about 40 years,building, repairing and selling them, theres nothing this bloke doesnt know about hoists of any kind, and his advice was never buy a red one, take outa that whatever you want.
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Old 04-11-2013, 01:30 AM
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This is a real surprise to me. I would've thought the 10A (legal) limit on single phase would make for very slow lift speed. It certainly limits choice of MIG welder when I looked into them. Maybe gearing helps the hoist?
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Old 04-11-2013, 02:39 AM
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Thanks Gents.

I am in the process of (re)wiring the shed which has 3 phase and will be running a dedicated line from a sub board to hang from the ceiling for the hoist. The extra cost would just be for the cable and outlet. Negligible difference overall.

Regardless, sounds like single phase is plenty so probably no need to go overboard. Just not red.

Geof
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Old 04-11-2013, 03:01 AM
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Default Legal?

I have a 15A powerpoint at home for my welder.

My electrician had no issue with it being illegal.

I am no expert tho...

Quote:
Originally Posted by sambo View Post
This is a real surprise to me. I would've thought the 10A (legal) limit on single phase would make for very slow lift speed. It certainly limits choice of MIG welder when I looked into them. Maybe gearing helps the hoist?
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Old 04-11-2013, 03:15 AM
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Quote:
Originally Posted by sambo View Post
This is a real surprise to me. I would've thought the 10A (legal) limit on single phase would make for very slow lift speed. It certainly limits choice of MIG welder when I looked into them. Maybe gearing helps the hoist?
Most hoists are hydraulic so a 1ph motor does it easy.
BTW single phase power is not limited to 10amp, it is limited by your supply or cable size.
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Old 04-11-2013, 04:46 AM
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Quote:
Originally Posted by sambo View Post
This is a real surprise to me. I would've thought the 10A (legal) limit on single phase would make for very slow lift speed.
Mine is plenty fast enough even with 3 ton of Land Rover on there.

How fast does it need to be? On the ground to max height is probably only 20 sec or so. You wouldn't want it to throw the car up in the air and catch it again.
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Old 04-11-2013, 05:45 AM
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A long time ago I bought a 3 phase molnar 2 post, and converted it to a 3 hp single phase. Wasn't expensive, and with the right coupling, It doesn't go any slower.
It took a 30 amp fuse, wired to the power board. It saves on the hassles of a new meter and power bills.
JD
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Old 04-11-2013, 06:25 AM
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without hurting myself with punctuation, most lifts use the motor to run a little hydraulic pump and the hydraulics do the work, i don't see an advantage to a 3 phase motor for just that, and most of these single phase motors require 20 amp circuits.
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Old 04-11-2013, 02:27 PM
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07COB,
IT wont matter which hoist in my Automatic transmission workshop I have both 3 of each, not one bit of difference in operation or maintance
Raaps
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Old 04-11-2013, 02:46 PM
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I like my red one.


That is about 3.5 tonne of Toyota on the hoist.
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Old 04-11-2013, 03:08 PM
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Hi Guys

The 2 post hoists we have at work in our mechanical workshop run a 3 phase motor and use a hydraulic ram to haul cables under the center hump in the hoist which is between the posts.

For a personal hoist a single phase motor should be fine for vehicles that weigh up to 1500 KGS

Remember cheapest is not always the best option
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Old 04-11-2013, 09:21 PM
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Default Single phase

Guy's,

I have a 2 and 4 post hoist ( TUFFLIFT ) both 15AMP power.

The garage was wired with 10/15/20amp outlets for different devices.

The hoists are 15amp ( but can be modified for 10amp plugs ) and the

amount of time they are used the 20 second lift time is irrelevant.

Think back to when you had to lift the car with a jack and only to knee

height.

The 2 post hoist is the best tool I have ever purchased......

STIFFY
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Old 04-11-2013, 10:13 PM
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Is it the best tool you have played with Stiff?
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