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OT: Cutting steel         


Author: Trevor Wilson
Date: May 10, 2008 23:02

I had to cut some 8mm steel yesterday and today. I dusted off my trusty 9"
angle grinder and set to work. I wore out one wheel (Flexovit)and the only
one I had available was an 8" Flexovit (Aussie made). I wore it out in short
order. It's cutting performance was what I would term "satisfactory". About
2cm/minute (best guess). I toddled off to Bunnings this afternoon to buy
some more wheels. Unfortunately, the Flexovit wheels had the wrong size
mounting hole, so I purchased a 5 pack of Trojan (Chinese made) branded
wheels. Hopeless cutting performance. I mean, REALLY BAD. It took about 5
minutes to cut 2cm. The wheel didn't wear down and faster or slower than the
Flexovit. It just hardly cut the metal at all.

What gives?

The technology is hardly state of the art. All wheels are rated for ferrous
metal cutting. Since most of my cutting is done with a 4" grinder, this is
not something I've experienced before. I've not experienced this sort of
poor performance when cutting concrete, bricks and stone. Are all these
Chinese wheels bad, or did I get a bad batch?

The Torjans are going back on Monday. I doubt that I'll buy them again.

Trevor Wilson
20 Comments
Re: Cutting steel         


Author: Kwyjibo
Date: May 10, 2008 23:32

"Trevor Wilson" _SPAMBLOCK_rageaudio.com.au> wrote in message
news:68ngffF2u28orU1@mid.individual.net...
>I had to cut some 8mm steel yesterday and today. I dusted off my trusty 9"
>angle grinder and set to work. I wore out one wheel (Flexovit)and the only
>one I had available was an 8" Flexovit (Aussie made). I wore it out in
>short order. It's cutting performance was what I would term "satisfactory".
>About 2cm/minute (best guess). I toddled off to Bunnings this afternoon to
>buy some more wheels. Unfortunately, the Flexovit wheels had the wrong size
>mounting hole, so I purchased a 5 pack of Trojan (Chinese made) branded
>wheels. Hopeless cutting performance. I mean, REALLY BAD. It took about 5
>minutes to cut 2cm. The wheel didn't wear down and faster or slower than
>the Flexovit. It just hardly cut the metal at all.
>
> What gives?
>
> The technology is hardly state of the art. All wheels are rated for
> ferrous metal cutting. Since most of my cutting is done with a 4" grinder,
> this is not something I've experienced before. I've not experienced this
> sort of poor performance when cutting concrete, bricks and stone. Are all
> these Chinese wheels bad, or did I get a bad batch? ...
Show full article (1.45Kb)
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Re: Cutting steel         


Author: Michael C
Date: May 10, 2008 23:48

"Trevor Wilson" _SPAMBLOCK_rageaudio.com.au> wrote in message
news:68ngffF2u28orU1@mid.individual.net...
>I had to cut some 8mm steel yesterday and today. I dusted off my trusty 9"
>angle grinder and set to work. I wore out one wheel (Flexovit)and the only
>one I had available was an 8" Flexovit (Aussie made). I wore it out in
>short order. It's cutting performance was what I would term "satisfactory".
>About 2cm/minute (best guess). I toddled off to Bunnings this afternoon to
>buy some more wheels. Unfortunately, the Flexovit wheels had the wrong size
>mounting hole, so I purchased a 5 pack of Trojan (Chinese made) branded
>wheels. Hopeless cutting performance. I mean, REALLY BAD. It took about 5
>minutes to cut 2cm. The wheel didn't wear down and faster or slower than
>the Flexovit. It just hardly cut the metal at all.
>
> What gives?
>
> The technology is hardly state of the art. All wheels are rated for
> ferrous metal cutting. Since most of my cutting is done with a 4" grinder,
> this is not something I've experienced before. I've not experienced this
> sort of poor performance when cutting concrete, bricks and stone. Are all
> these Chinese wheels bad, or did I get a bad batch? ...
Show full article (1.40Kb)
no comments
Re: Cutting steel         


Author: Jason James
Date: May 10, 2008 23:51

"Trevor Wilson" _SPAMBLOCK_rageaudio.com.au> wrote in message
news:68ngffF2u28orU1@mid.individual.net...
> I had to cut some 8mm steel yesterday and today. I dusted off my trusty 9"
> angle grinder and set to work. I wore out one wheel (Flexovit)and the only
> one I had available was an 8" Flexovit (Aussie made). I wore it out in
short
> order. It's cutting performance was what I would term "satisfactory".
About
> 2cm/minute (best guess). I toddled off to Bunnings this afternoon to buy
> some more wheels. Unfortunately, the Flexovit wheels had the wrong size
> mounting hole, so I purchased a 5 pack of Trojan (Chinese made) branded
> wheels. Hopeless cutting performance. I mean, REALLY BAD. It took about 5
> minutes to cut 2cm. The wheel didn't wear down and faster or slower than
the
> Flexovit. It just hardly cut the metal at all.
>
> What gives?
>
> The technology is hardly state of the art. All wheels are rated for
ferrous ...
Show full article (1.47Kb)
no comments
Re: Cutting steel         


Author: Trevor Wilson
Date: May 10, 2008 23:57

"Michael C" nospam.com> wrote in message
news:48269731$0$17507$afc38c87@news.optusnet.com.au...
> "Trevor Wilson" _SPAMBLOCK_rageaudio.com.au> wrote in message
> news:68ngffF2u28orU1@mid.individual.net...
>>I had to cut some 8mm steel yesterday and today. I dusted off my trusty 9"
>>angle grinder and set to work. I wore out one wheel (Flexovit)and the only
>>one I had available was an 8" Flexovit (Aussie made). I wore it out in
>>short order. It's cutting performance was what I would term
>>"satisfactory". About 2cm/minute (best guess). I toddled off to Bunnings
>>this afternoon to buy some more wheels. Unfortunately, the Flexovit wheels
>>had the wrong size mounting hole, so I purchased a 5 pack of Trojan
>>(Chinese made) branded wheels. Hopeless cutting performance. I mean,
>>REALLY BAD. It took about 5 minutes to cut 2cm. The wheel didn't wear down
>>and faster or slower than the Flexovit. It just hardly cut the metal at
>>all.
>>
>> What gives?
>>
>> The technology is hardly state of the art. All wheels are rated for
>> ferrous metal cutting. Since most of my cutting is done with a 4" ...
Show full article (1.80Kb)
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Re: Cutting steel         


Author: Trevor Wilson
Date: May 11, 2008 00:00

"Kwyjibo" ozdebate.remove.com> wrote in message
news:pcqdnWybrcp4D7vVnZ2dnUVZ_vjinZ2d@westnet.com.au...
>
> "Trevor Wilson" _SPAMBLOCK_rageaudio.com.au> wrote in message
> news:68ngffF2u28orU1@mid.individual.net...
>>I had to cut some 8mm steel yesterday and today. I dusted off my trusty 9"
>>angle grinder and set to work. I wore out one wheel (Flexovit)and the only
>>one I had available was an 8" Flexovit (Aussie made). I wore it out in
>>short order. It's cutting performance was what I would term
>>"satisfactory". About 2cm/minute (best guess). I toddled off to Bunnings
>>this afternoon to buy some more wheels. Unfortunately, the Flexovit wheels
>>had the wrong size mounting hole, so I purchased a 5 pack of Trojan
>>(Chinese made) branded wheels. Hopeless cutting performance. I mean,
>>REALLY BAD. It took about 5 minutes to cut 2cm. The wheel didn't wear down
>>and faster or slower than the Flexovit. It just hardly cut the metal at
>>all.
>>
>> What gives?
>>
>> The technology is hardly state of the art. All wheels are rated for ...
Show full article (1.74Kb)
no comments
Re: Cutting steel         


Author: Michael C
Date: May 11, 2008 00:01

"Jason James" peace.com> wrote in message
news:48269764$0$28351$c30e37c6@pit-reader.telstra.net...
> 8cm is fairly thick,

8cm is HUGE! :-)

Michael
no comments
Re: OT: Cutting steel         


Author: the_dawggie
Date: May 11, 2008 00:28

On May 11, 5:02 pm, "Trevor Wilson"
_SPAMBLOCK_rageaudio.com.au> wrote:
> I had to cut some 8mm steel yesterday and today. I dusted off my trusty 9"
> angle grinder and set to work. I wore out one wheel (Flexovit)and the only
> one I had available was an 8" Flexovit (Aussie made). I wore it out in short
> order. It's cutting performance was what I would term "satisfactory". About
> 2cm/minute (best guess). I toddled off to Bunnings this afternoon to buy
> some more wheels. Unfortunately, the Flexovit wheels had the wrong size
> mounting hole, so I purchased a 5 pack of Trojan (Chinese made) branded
> wheels. Hopeless cutting performance. I mean, REALLY BAD. It took about 5
> minutes to cut 2cm. The wheel didn't wear down and faster or slower than the
> Flexovit. It just hardly cut the metal at all.
>
> What gives?
>
> The technology is hardly state of the art. All wheels are rated for ferrous
> metal cutting. Since most of my cutting is done with a 4" grinder, this is
> not something I've experienced before. I've not experienced this sort of
> poor performance when cutting concrete, bricks and stone. Are all these
> Chinese wheels bad, or did I get a bad batch? ...
Show full article (1.54Kb)
no comments
Re: OT: Cutting steel         


Author: Trevor Wilson
Date: May 11, 2008 00:36

"the_dawggie" hotmail.com> wrote in message
news:03bf65f4-4893-42b1-8383-d2e923cb526c@j33g2000pri.googlegroups.com...
> On May 11, 5:02 pm, "Trevor Wilson"
> _SPAMBLOCK_rageaudio.com.au> wrote:
>> I had to cut some 8mm steel yesterday and today. I dusted off my trusty
>> 9"
>> angle grinder and set to work. I wore out one wheel (Flexovit)and the
>> only
>> one I had available was an 8" Flexovit (Aussie made). I wore it out in
>> short
>> order. It's cutting performance was what I would term "satisfactory".
>> About
>> 2cm/minute (best guess). I toddled off to Bunnings this afternoon to buy
>> some more wheels. Unfortunately, the Flexovit wheels had the wrong size
>> mounting hole, so I purchased a 5 pack of Trojan (Chinese made) branded
>> wheels. Hopeless cutting performance. I mean, REALLY BAD. It took about 5
>> minutes to cut 2cm. The wheel didn't wear down and faster or slower than
>> the
>> Flexovit. It just hardly cut the metal at all.
>> ...
Show full article (1.95Kb)
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Re: Cutting steel         


Author: Noddy
Date: May 11, 2008 00:49

"Trevor Wilson" _SPAMBLOCK_rageaudio.com.au> wrote in message
news:68ngffF2u28orU1@mid.individual.net...
> What gives?

Standard form for cheap Chinese shit.

It's apparently not uncommon for them to make a batch of masonry wheels, and
if there's a sudden demand for metal cutting wheels they'll simply swap the
label and supply the masonry ones with "metal cutting" on the label.

Try one of them on a bit of concrete and see how it goes :)

--
Regards,
Noddy.
no comments
 
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