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26th November 2020, 04:54 PM #1Member
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Converting bag to filter cartridge
I was wondering if anyone had successfully converted one of the trolley type dust extractors to use a filter cartridge?
I have a Full Boar dust extractor
(Full Boar 65L 550W Wet Dry Dust Extractor Vacuum - find it cheaper! @ lowerSpendings)
which is sold under a variety of names including the Scheppach HD12
(W886 - HD12 Dust Collector | Hare & Forbes Machineryhouse)
I am looking to convert it to a filter cartridge using the FC-10 from Hare and Forbes:
W328 - FC-10 Filter Cartridge | Hare & Forbes Machineryhouse
This normally fits their other style of machine and when asked Machinery house they said the HD12 has a 300mm drum and the FC-10 is 500mm and a flange would be needed to make them work. I am just unsure of this is a big, complicated modification or something simple.
Has anyone converted one of these extractors before to accept cartridges?
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26th November 2020 04:54 PM # ADSGoogle Adsense Advertisement
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26th November 2020, 05:08 PM #2China
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Pretty simple job for sheet metal shop to roll up a suitable flange, if you know someone with a jenny you could do it yourself.
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26th November 2020, 05:44 PM #3Woodworking mechanic
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According to a UK site, the HD12 uses a 370mm cartridge filter.
Cartridge Filter 0.5Micron for 370mm Diameter Drums CF1519
Timbercon has a 370mm cartridge so it may fit
https://www.timbecon.com.au/dust-ext...ter-cartridges
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26th November 2020, 05:56 PM #4
It's a fairly straightforward job to convert to pleated cartridge... well... when fitting one of the same diameter anyway. Remove the strap, swap the cartridge for the bag, replace the strap. Couldn't be simpler.
Is there any reason you want to go 500mm instead?
You'll want to make a funnel-shaped adapter, for starters, with a strip of rubber around the bottom for fixing to the existing DC. Funnel-shaped to both stop any dust building up on the top face and to give you physical access to the bottom strap.
You'd probably also want add some braces, so an accidental nudge wouldn't knock the filter awry during operation. (That's be... messy! )
So if you're thinking of going the 500mm because it's 'cheaper' or something, you want to factor in the hidden costs and headaches.
Still, I believe the 500mm would be technically better, giving increased air flow - mind you, I'm no expert on this - and if that's the reason, then go for it! (And don't forget to keep us appraised as to whether you think it worth the modification. )
- Andy Mc
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26th November 2020, 06:02 PM #5Member
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26th November 2020, 06:22 PM #6GOLD MEMBER
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That machine has a .75 HP motor. I would think very seriously before spending more money on it than you already have. IMO you'd just be throwing good money after bad and you would be much better off looking around for a good 2nd hand 2 HP machine and putting a cartridge filter on it.
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26th November 2020, 09:23 PM #7GOLD MEMBER
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27th November 2020, 09:26 AM #8Taking a break
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+1
1HP is useless enough, 0.75 HP you may as well just put your money straight in the bin and cut the middle man out
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27th November 2020, 09:57 AM #9.
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It depend what the OP is trying to do.
If it's to capture fine dust, then those small DCs are ineffective. If its to pick up chips they are marginally better than a shop vac.
To demonstrate whether its worth replacing the standard filter with a pleated filter (PF) on or not consider the following changes air flows
Those small DCs generate about 6" of WS pressure/vac which translates to a theoretical max flow of about 340 CFM through a 4" duct.
They cannot use 6" ducting as the impeller is not designed for and cannot be modified to take 6" ducting.
Adding a standard needle felt filter will drop the 340 CFM to ~280 CFM.
Replacing the needle felt filter with a PF will gain about 10% so bringing it back over 300 CFM.
Adding ducting, flex and even the slightest choked machines will drop it back below 300 CFM.
300 CFM would be are minimum for a DP, a power tool like a ROS, and maybe a small scroll saw but is insufficient for pretty much anything else.
The one significant improvement that PF will provide over a needle felt filter its that it will not clog as fast.
So overall, the gains in flow are not significant enough to warrant the expenditure.
Even the 2HP DCs in stock form have insufficient air flow for most machines.
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27th November 2020, 10:21 AM #10GOLD MEMBER
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By the time you throttle a 4" hose down to the fitting on a ROS there is no way a 3/4 HP DE could compete with a vac. and I can't understand why anybody would be using a DE for that purpose.
You commence your post by saying the sufficiency of the OP's machine depends on what he is trying to do with it, but by the time we get to your final two sentences his proposed mod. is clearly not worth doing and even if he replaces it with an, infinitely superior, 2HP model that will not be suitable for most purposes. Talk about having a quid each way.
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27th November 2020, 11:35 AM #11.
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What most people don't understand is that for any power tool that has a fan in it like a sander, the air/dust flow through the sander is determined by the speed of the sander fan - all the vac/DC has to do is clear the fan output. Most sander fans have about a 50- 100 CFM output as that's all that will get through the holes in the sander. As long as the attached DC/Vac is capable of moving more air than the fan output that it will clear the fans dust output.
This does not apply to power tools that produce lot of chips chips eg router where the speed of the chips coming off the blade is too high for the small flows that any DC can counteract.
You commence your post by saying the sufficiency of the OP's machine depends on what he is trying to do with it, but by the time we get to your final two sentences his proposed mod. is clearly not worth doing and even if he replaces it with an, infinitely superior, 2HP model that will not be suitable for most purposes. Talk about having a quid each way.
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22nd February 2021, 01:43 PM #12Member
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Thank you everyone for the replies - I had picked up the dust extractor very cheaply ($99 new) originally and was looking at any improvements which would be compatible with a larger machine once I had the space and money to upgrade. I think the outcome is that it will struggle to push through the extra surface area and I should not invest any further money in it until I can afford a bigger machine!
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