- Thread starter nickk
- Start date
Parm
Respect The Sound System
- Messages
- 18,006
- Location
- Towcester
I’m gonna probably sound like a broken record and most if not all forum folk will take the **** cause I’m being serioys
but
sod the ****** size of the fan to seek approval on in the first instance
ypu need to start with type of dust, how you create it, what process is involved, where it happens etc etc etc etc.this will result in some quite important information that will determine your face and capture velocity required. Which will then tell you the size of fan required subject to ducting run required etc etc etc etc rt
clearly It seems that you are wanting to do this for the right reasons cause you want to safe guard your health
Two options are available
folk likle me that ask difficult questions to help you arrive at the correct solution
or folk that say you need a fan of xxxxxxx size with out understanding how you generate the hazard
but
sod the ****** size of the fan to seek approval on in the first instance
ypu need to start with type of dust, how you create it, what process is involved, where it happens etc etc etc etc.this will result in some quite important information that will determine your face and capture velocity required. Which will then tell you the size of fan required subject to ducting run required etc etc etc etc rt
clearly It seems that you are wanting to do this for the right reasons cause you want to safe guard your health
Two options are available
folk likle me that ask difficult questions to help you arrive at the correct solution
or folk that say you need a fan of xxxxxxx size with out understanding how you generate the hazard
8ob
Member
- Messages
- 14,367
- Location
- Nescient in the vale
Brad93
Member
- Messages
- 19,085
- Location
- Essex, United Kingdom
Nick as a commercial business you really should be using proper nederman, kemper etc units designed for welding fumes. And all the yearly paperwork that goes with it, LEV testing etc.
A home brew system with 80W fans really isn’t going to stand up in court. I’ve got an 800W in-line and it barely sucks anything away, I use it in the summer to blow cooling air
An employer is responsible for their employees health and safety, if you’re a limited company then you are the employer and the employee.
The nederman arm units that just blow the fume out (no good for dust that Must be filtered) but if it’s just fume, they’re not expensive. £1500 would get you a brand new 3m arm and fan.
A home brew system with 80W fans really isn’t going to stand up in court. I’ve got an 800W in-line and it barely sucks anything away, I use it in the summer to blow cooling air
An employer is responsible for their employees health and safety, if you’re a limited company then you are the employer and the employee.
The nederman arm units that just blow the fume out (no good for dust that Must be filtered) but if it’s just fume, they’re not expensive. £1500 would get you a brand new 3m arm and fan.
brightspark
Member
- Messages
- 41,232
- Location
- yarm stockton on tees
Parm
Respect The Sound System
- Messages
- 18,006
- Location
- Towcester
You have just involved your self in something you weren’t involved inwho is us lot
no one has posted on it . just one in jest
you can tell the OP about your home made situation ...
ps. I don’t see the funny side of things when dealing with health. After years of seeing “experts” feckino things up im now suffering from a sense of humour by pass
grim_d
Unlikeable idiot.
- Messages
- 4,275
- Location
- Scotland - Ayrshire
I recall you replying to my thread about extraction. Everything you say is valid, you are the expert (and no I'm not taking the ****)
What I have realised though that there is no all in one solution for wood dust in a normal workshop...my extraction is tremendous from a power point of view, I frequently lose things up it I'd rather not when the 4" hose is open...which I then have to fish out the chip bin under the cyclone.
Anyway...despite this, none of my equipment, particularly the hand tools like circular saws are capable of capturing everything.
I bought one of those ceiling mounted room filters which captures a huge amount of the airborne stuff but even with them both combined I still have to wear a mask alot of the time.
Point is, in a workshop where different things are being done everyday especially by hand (rather than big purpose built machines doing the same thing day in day out) that even the best extraction system can only do so much.
And that's why as @Parm and @Brad93 and you have identified, you can't have a one size fits all solution to the problem. Extraction needs to start with looking at the problem and then designing a solution around it.
In most cases this will need more than one solution, a welding workshop will probably need separate fume and dust extractors for welding and grinding. Likewise a carpentry shop will need a big system for the fixed machines but will need different options for the hand operations.
Unfortunately there's no easy fix or simple solution to the extraction problem.
8ob
Member
- Messages
- 14,367
- Location
- Nescient in the vale
Nick is probably just trying to clear the haze and get a bit of air movement. Not sure on the smaller fans despite being more powerful shifting more air, is there any air movement rating marked on the casings? Smaller more powerful normally means noisier.
Bob
