I have a few photos in attaching of a sunbeam 6910 portafilter I'm looking to buy! Wanting to get brass so I can easily convert to a naked version, but don't want to buy if it's another stainless. How can I tell from photos? And been told it's 5+ years old easily too! Help would be great as the item goes till Monday 10:40am.


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Is this 6910 PF stainless or brass?
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Would you be able to find a metalwork / machine shop near you. If there not busy it should be cheap to get them to cut the stainless one on a lathe. Quicker and nicer finish possibly. Just take the handle off it to make life easy.
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I wanted to do myself with a hole saw but read that stainless takes hours and hours in comparison to a brass one. I can always just buy and ask them what it'd cost or just attempt it myself on a latheOriginally posted by Mb21 View PostWould you be able to find a metalwork / machine shop near you. If there not busy it should be cheap to get them to cut the stainless one on a lathe. Quicker and nicer finish possibly. Just take the handle off it to make life easy.
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Yeah you’ll need a lathe for stainless. It’s quick and easy and gives a better result including with brass. A general engineering workshop shouldn’t want much more than $20 for the job.Originally posted by FilthySudo View PostI wanted to do myself with a hole saw but read that stainless takes hours and hours in comparison to a brass one. I can always just buy and ask them what it'd cost or just attempt it myself on a lathe
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My grandparents have a lathe I believe but what tool would I need to cut through it?Originally posted by LeroyC View PostYeah you’ll need a lathe for stainless. It’s quick and easy and gives a better result including with brass. A general engineering workshop shouldn’t want much more than $20 for the job.
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I suspect it is brass (about 60% educated guess), which means it is older than 5 years. Be aware the 6910 stainless p/f is a lot thinner and easier to work than the 7000's, so to an extent it is worth a punt. If it is stainless, just get the proper cutting fluid - do not use water. Oh, and use a lot of the cutting fluid (easy to recycle it "on the job").
If in doubt, try contacting a few repairers of SB and ask them to keep the p/f from any machine they scrap.
TampIt
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It's a portafilter from an early model machine and will be brass.
Indicators are:
1. The large rounded lip of the basket rather than the later model smaller ridged lip.
2. Smaller contact area of the two portafilter ears. You can see about halfway along the ear the different level.
Another indicator that can't clearly be seen in these photos is the spout thread pitch. Early models have a coarse thread and later models have a fine thread. I think there was a crossover where stainless portafilters had coarse threads, not quite sure.
Generally speaking though, coarse thread is a brass portafilter.
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Ahh this sucks! I missed this item thinking it might not be brass! I shall send through photos of my current photo to see if you know if it's the stainless model thenOriginally posted by noidle22 View PostIt's a portafilter from an early model machine and will be brass.
Indicators are:
1. The large rounded lip of the basket rather than the later model smaller ridged lip.
2. Smaller contact area of the two portafilter ears. You can see about halfway along the ear the different level.
Another indicator that can't clearly be seen in these photos is the spout thread pitch. Early models have a coarse thread and later models have a fine thread. I think there was a crossover where stainless portafilters had coarse threads, not quite sure.
Generally speaking though, coarse thread is a brass portafilter.
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