welding fume extractor

[mr migwire]

just fumes and an inline fan would be fine as its doubtfull there would be enough draw to lift grinding dust etc..

 

[Welderpaul]

We've had all sorts of extractor things in our place with no real effect. We keep 6000 sq foot, and 4/5 welders breathing nice air with a big Clarke industrial fan at the back of the shop, blowing out through open roller shutter doors. Granted you might not want to leave your door fully open, but we have found blowing the nastys much easier than trying to suck them. Blows the larger particles away, grinding dust etc, too. Makes a mess of peoples cars that park in the yard though, little tiny rust spots all over them.

 

[CRB]

Do away with fans and motors which will be in the stream of the fumes you want to avoid and use venturi effect extraction.

One of the clever lads will probably be able to say whether an electric fan is more or less effective/economical than using your compressor.

 

[roofman]

remember matey that you also need a vent from the outside to allow fresh air to be brought in at the same time your extracting stale.I have a 12" roof extractor fan but also have a 6" roof vent to bring the fresh in

 

[Maker]

Do away with fans and motors which will be in the stream of the fumes you want to avoid and use venturi effect extraction.

One of the clever lads will probably be able to say whether an electric fan is more or less effective/economical than using your compressor.

I don't have a compressor.

remember matey that you also need a vent from the outside to allow fresh air to be brought in at the same time your extracting stale.I have a 12" roof extractor fan but also have a 6" roof vent to bring the fresh in

I think the gap around the door will suffice.

 

[Kent]

We've had all sorts of extractor things in our place with no real effect. We keep 6000 sq foot, and 4/5 welders breathing nice air with a big Clarke industrial fan at the back of the shop, blowing out through open roller shutter doors. Granted you might not want to leave your door fully open, but we have found blowing the nastys much easier than trying to suck them. Blows the larger particles away, grinding dust etc, too. Makes a mess of peoples cars that park in the yard though, little tiny rust spots all over them.

no probs with sheilding gases?

 

[simplysimon]

I would have thought an old second hand stainless cooker hood would do the job nicely, albeit a tad loud on the fastest setting, you could have it come on with a peddle switch.

 

[Rig Pig]

Even with extract use a decent face mask, the amount of muck it stops you breathing in is amazing.

 

[Maker]

There's a respirator I've seen used on weldingtipsandtricks.com but I have no idea what the model number is. It's a 3M half face mask with pink, circular filters and it apparently fits nicely under a welding mask. Anyone know what it is?
I'd also quite like a full face mask for grinding and the like but I'm sure they don't come cheap.

 

[wheresmejumper]

Yeah I have one of those masks, wear it for grinding only.does the job

 

[Rocketman]

There's a respirator I've seen used on weldingtipsandtricks.com but I have no idea what the model number is. It's a 3M half face mask with pink, circular filters and it apparently fits nicely under a welding mask. Anyone know what it is?
I'd also quite like a full face mask for grinding and the like but I'm sure they don't come cheap.

I just use the 8 hour use chuck away ones, easy fit under welding mask and not hot. Basically welding/grinding grade ones are FFP2 with carbon. It's got to have the carbon. There is a nr number for the type you need can't remember it though.

Edit - Here you go
http://www.jsp.co.uk/products/BEK150-001-000_Moulded-Disposable-Mask-FFP2-123-Odour-Valved-Welding

or more expensive 3m

http://uk.rs-online.com/web/p/disposable-respirators/4096588/

Way better for your lungs than and exactor could do.

 

[Rig Pig]

I use the 3M ones as well, for cutting, welding and woodwork, the compound miter saw it the messiest thing I own!

 

[simplysimon]

There's a respirator I've seen used on weldingtipsandtricks.com but I have no idea what the model number is. It's a 3M half face mask with pink, circular filters and it apparently fits nicely under a welding mask. Anyone know what it is?
I'd also quite like a full face mask for grinding and the like but I'm sure they don't come cheap.

could be a 3M 7500 series half mask or a 6200 both use the bayonet style filter connection and either can use the soft material and cartridge type filters. £15-20 + filters

 

[Farside]

in my last garage i used an old heater box out of a mk4 escort and some serated field drain pipe, made a goose neck type stand from 1"box and 1"flat bar, even kept the speed controler for 3 settings, work reasonabley well and cost about £10 for stock and fastenings to make.

I've got a car heater blower lying around, but better than that, I have several old forced-air fan units from domestic central heating oil boilers. Stripped of their gubbins, leaving just the fan and blower motor in the casing, they'd be powerful enough for this application and dirt cheap to pick up for anyone who wants a cheap repairable blower.

 

[Maker]

I've seen quite a few "industrial" blowers on eBay, they go for around £130 with a 3 HP motor if anyone else is interested.

 

[bigegg]

I use a bouncy castle blower :
http://www.ebay.co.uk/itm/Electric-...Outdoor_Play_Equipment_LE&hash=item3a9c0a3e2a

paid about a fiver for it at the car boot. Blasts everything away from me (as welderpaul says - blow, not suck).
4 or 5 inch pipe fittings can be attached with car body filler, then add as much drainpipe or tumble dryer vent hose as needed to make a "system"

 

[Farside]

I use a bouncy castle blower :
http://www.ebay.co.uk/itm/Electric-...Outdoor_Play_Equipment_LE&hash=item3a9c0a3e2a

paid about a fiver for it at the car boot. Blasts everything away from me (as welderpaul says - blow, not suck).
4 or 5 inch pipe fittings can be attached with car body filler, then add as much drainpipe or tumble dryer vent hose as needed to make a "system"

Wow, they're cheap, and a decent capacity too.