My lathe has a built in tray and sump, it was designed for cooling from the factory. I do need to install a back splash to prevent chips going everywhere behind it though. You are correct that there's no comparison between brushing on fluid and coolant. I machine hardened 4140 on my lathe with carbide tooling, and the cutting fluid helps with surface finish, but the work gets very hot. I machined similar steels in the shop at my own work, and just having a slight stream on the workpiece helped massively.
I guess the only place I really need high flow would be on my converted CNC for clearing chips out of aluminum pockets. It has a semi-full enclosure where spray wouldn't be a problem.
I'll give this guy a try on the surface grinder. If it doesn't have enough flow I can always use it on the lathe and get something different.
https://www.harborfreight.com/14-hp-submersible-sump-pump-3000-gph-63892.html
I guess the only place I really need high flow would be on my converted CNC for clearing chips out of aluminum pockets. It has a semi-full enclosure where spray wouldn't be a problem.
I'll give this guy a try on the surface grinder. If it doesn't have enough flow I can always use it on the lathe and get something different.
https://www.harborfreight.com/14-hp-submersible-sump-pump-3000-gph-63892.html