While gas / electric chainsaws are unlikely to work underwater, I can't imagine a reason why a hydraulic chainsaw wouldn't work on dry ground with its superior weight to power ratio and lack of blue smoky exhaust. Probably quieter too.
Underwater Chain Saws
21–30 of 97 posts
Re: Underwater Chain Saws
#22While gas / electric chainsaws are unlikely to work underwater, I can't imagine a reason why a hydraulic chainsaw wouldn't work on dry ground with its superior weight to power ratio and lack of blue smoky exhaust. Probably quieter too.
it's not all that easy to generate high quality/consistent high pressure hydraulic pressure quietly either, though.
the early big-dog robots demonstrated that famously.
Re: Underwater Chain Saws
#23Amazing, I actually saw one of these today at a flea market. I noticed it was hydraulic powered but didn't suspect it was for use under water.
> I noticed it was hydraulic powered but didn't suspect it was for use under water I suspect a gasoline-powered chainsaw wouldn't work underwater... which made me wonder if maybe that does exist because you could feed it O2 from a supply tank just like the fuel, maybe even from the diver's own air tank? Now I want to know how bouyant battery-packs are and if an impractically-heavy battery-powered chainsaw work well u…
The exhaust bubbles surely would steer up debris and clog your sight
Re: Underwater Chain Saws
#24Around $4100! https://www.amronintl.com/stanley-cs113no-hydraulic-underwat... Amazing how capable tools can be, in industries that simply cannot get their work done without them and are willing to pay a healthy amount. Sometimes I wonder how good our dev tooling would be if we were willing to pay thousands a year, as opposed to the time-wasting bug-fest that is Xcode. Not singling out Apple, I’m sure all are comparab…
You think Apple is expensive? Licenses for Dassault Catia start at $12,000.
Mentor Graphics silicon design stuff started at $50,000 last I checked.
Easily 100-150k per seat for mixed signal chip design. Cost as much or more than the salary of the person using it.
Re: Underwater Chain Saws
#25While gas / electric chainsaws are unlikely to work underwater, I can't imagine a reason why a hydraulic chainsaw wouldn't work on dry ground with its superior weight to power ratio and lack of blue smoky exhaust. Probably quieter too.
The chainsaw might be lighter…but the equipment powering it isn’t.
Re: Underwater Chain Saws
#26While gas / electric chainsaws are unlikely to work underwater, I can't imagine a reason why a hydraulic chainsaw wouldn't work on dry ground with its superior weight to power ratio and lack of blue smoky exhaust. Probably quieter too.
I think there's a massive portability difference, plus managing the hoses is a safety issue. I have an electric chainsaw, and always have to keep an eye on where the power cord is.
I've seen what happens when a hydraulic line gets cut in an industrial plant.
Re: Underwater Chain Saws
#27Earlier quoted context omitted.
> I noticed it was hydraulic powered but didn't suspect it was for use under water I suspect a gasoline-powered chainsaw wouldn't work underwater... which made me wonder if maybe that does exist because you could feed it O2 from a supply tank just like the fuel, maybe even from the diver's own air tank? Now I want to know how bouyant battery-packs are and if an impractically-heavy battery-powered chainsaw work well u…
The exhaust bubbles surely would steer up debris and clog your sight
Not if you route it through a flexible hose a couple feet long. Not as bad, at least.
Re: Underwater Chain Saws
#28Amazing, I actually saw one of these today at a flea market. I noticed it was hydraulic powered but didn't suspect it was for use under water.
> I noticed it was hydraulic powered but didn't suspect it was for use under water I suspect a gasoline-powered chainsaw wouldn't work underwater... which made me wonder if maybe that does exist because you could feed it O2 from a supply tank just like the fuel, maybe even from the diver's own air tank? Now I want to know how bouyant battery-packs are and if an impractically-heavy battery-powered chainsaw work well u…
For the first question, according to [1] gasoline uses 9000L air per liter of gas and a liter of gas runs a chainsaw for an hour ish, something like 150 L/minute. This is an order of magnitude higher than humans or so, so a scuba tank that lets you dive for an hour would only let you chainsaw for maybe 5-10 minutes?
Re: Underwater Chain Saws
#29While gas / electric chainsaws are unlikely to work underwater, I can't imagine a reason why a hydraulic chainsaw wouldn't work on dry ground with its superior weight to power ratio and lack of blue smoky exhaust. Probably quieter too.
I think there's a massive portability difference, plus managing the hoses is a safety issue. I have an electric chainsaw, and always have to keep an eye on where the power cord is. I've seen what happens when a hydraulic line gets cut in an industrial plant.
For reference, an underwater diver typically has a dedicated hose-manager, a dedicated stand-by diver, and a dedicated job manager watching the vision feeds, the oxygen levels, handling comms, etc.
That's a minimum of four people per job with complex time critical work in harbours holding up transit shipping can see that layered up to cover 24x7 operation.
The hose management is the air mix lines to the diver along with cmms and then any tool lines required - hydraulic, pnuematic, additional electric, etc.
Re: Underwater Chain Saws
#30I've seen pneumatic chainsaws used in shallow water. Quite loud