equipment supplier
equipment supplier
(OP)
I need to coat the end of a small part with lacquer. The part somewhat resembles a bullet in both size and shape. The parts are attached to a roller-chain with clips and conveyed through the system. The line produces 1200 parts/minute. I picture the parts being dipped/dragged into a small tank of lacquer to receive the coating on the end. I also can envision needing to direct a stream of lacquer (NOT atomized spray) at the end of the part.
I am looking for equipment suppliers who would be able to provide the dip tank, lacquer handling equipment such as float valves, pumps, liquid-jet nozzles, etc. Because of the small amount of lacquer applied to the end of each piece the system would use approximately 1 liter/hour of lacquer. I have searched on-line but I don't know what to call this equipment, so I haven't been very successful. I would appreciate tips on suppliers, search terms, examples of systems, etc.
Thanks for helping,
DVD
I am looking for equipment suppliers who would be able to provide the dip tank, lacquer handling equipment such as float valves, pumps, liquid-jet nozzles, etc. Because of the small amount of lacquer applied to the end of each piece the system would use approximately 1 liter/hour of lacquer. I have searched on-line but I don't know what to call this equipment, so I haven't been very successful. I would appreciate tips on suppliers, search terms, examples of systems, etc.
Thanks for helping,
DVD





RE: equipment supplier
Why NOT atomized spray? Some of these are very precise, like a fuel injector in an engine.
What about pretreatment (cleaning, maybe conversion coating depending on substrate)?
What is the material?
Type of lacquer desired (water-based is common to minimize air pollution regulation equipment)?
You will probably need a few more accessories, such as an airknife & drying oven.
For equipment suppliers, see
ht
http://www.finishing.com/Equipment/index.html
RE: equipment supplier
Best regards,
dvd
RE: equipment supplier
If you use a viscous coating in a dip tank & are worried about backside coverage, just make the tank longer or put a mechanical mixer or pump nozzle subsurface directed at the submerged portion of the part.
An airknife is typically used to prevent excessive dragout of the liquid. The current process is a batch proces, but for something inline, need drying (or else a very long length!). Maybe use a short row of IR lamps on each side of the line to dry the coating.
Please clarify "The parts are produced in an explosive environment." Is this from hydrocarbon solvent evaporating? May need to worry about explosion proof electrical & OSHA restrictions.
RE: equipment supplier
You may just want to scale up the batch process (dip a thousand parts at a time instead of one), in order to provide a clean coating. Having a moving chain/belt with particles shedding off it into your laquer tank may be troublesome, and as ken notes, the explosive environment may limit the types of machinery you can have in close proximity.