How is it possible for this Chainsaw to be only 15amp and yet claim to be 4HP? It just does not add up.
1944935
You are correct. It does not add up. But I will saw this is a very good and effective electric chain saw. I have used many gas powered chain saws, including two man chains saws. This unit does a great job around the yarn.
1718874
I measure 9.5 amps when it is unloaded with the chain adjusted slightly on the tight side. I suspect it draws significantly more than that when cutting at its maximum rate but that's a bit more difficult to measure. It will probably pull more than 15 amps if you stall it out, but I don't think that is meaningful if your trying to assess its ability to cut wood.
1120589
It's 2 hp and let me tell you how good it is. I found out about this saw from a older friend who is an electrician. He said it worked very good especially lighter weight and not having to deal with mix fuels/oils and such. So I bought one. I have been cutting huge 18-20" timber and it just keeps up as well as my Poulan or my Sthil. Just make sure your chain is tight and you keep the chain oiler filled.
1953761
The only info on the outside of the unit says 15a and 4hp max. No bearing issues yet. Two biggest complaints are 1. the cross cut guide has too much play and must be shimmed to make consistant cuts and 2. the arbor is too short to allow the use of an adjustable dado.e
1800456
It should work set to 1 pulse per revolution. Chainsaws run at RPMs up to 12,000 RPM.
1536434
15 amps is 1650 watts rms (root mean square). At the peak of the alternating current's sine wave (ac cycles 50 or 60 times a second in a wave pattern) the saw is drawing 3,300 watts or around 4hp. This is a kind of deceptive description of the saw's power but I've seen other manufacturers (Poulan) do the same thing. It is still plenty powerful to cut down a 16 inch diameter oak tree with no problem and you do need a hefty power cord.
1536433
Yeah, the math doesn't work out but looking at the Worx website, under Technical Specifications they list it as "Peak Power: 4HP" so I'm guessing they've got some measurement scheme where 1 HP != 745 watts.
292309
The plate on the motor I bought shows 1 HP. I suspect that Techie is correct about Grizzly just doing a bit of picture sharing because the motors look the same.
308187
Not sure about your saw? but I use it to run a water make on my boat, the water maker has a 1 HP motor, starts right up!! Plenty of instant power.
1328869
Not sure. Mine is on a 15 amp circuit and has never kicked the breaker. Almost all of the draw is at startup and that is handled by capacitors, once the blade is in motion there is enough inertia that I've never noticed it slowing down (and thus requiring additional current draw) for anything I've ever cut with it, which is most generally oak or dimensional softwoods. I'm not outside at the moment (recovering from eye surgery yesterday), so I can't check the motor for its specs. Try the Makita web site for detailed electrical specs.
294601
Not sure how they calculate the HP, this might be a question for Makita. I get 2.41HP when calculating based on 120V and 15A. (Php=(eff*UI/1000)/0.746). It could be 3.25HP if the motor was 135% efficient!
121975
I've tried using it with my 15amp jackhammer and it will heat up the vacs power cord and eventually trip the breaker after a few minutes. I'd say a 12 amp saw for short bursts would be fine. The auto start feature is nice but with as quiet as this vac is we end up leaving it on most of the day on its own circuit.
592400
I don't know how many amps but it works pretty good. Keeping the chain sharp is important. I've used to cut 20 -25 diameter trunks no problem.
1539517
It does not have an easy start that I know of. I really do not recommend this chainsaw it is terribly underpowered if stalls on even the softest wood, the 18 blade is just for show, I doubt it would handle a 14" blade
1174504
i can add that it doesn't have full power for me. I think it is due to being under-air powered. I have it running through 50ft of standard air line, but the compressor only generates 120psi. I haven't had time to work it out yet, but beware if you don't have a large and capable compressor, you may not get the full rating force rating of the impact wrench. also take this with a grain of salt, as I am not an expert and haven't resolved the issue. I trust Craftsman in general. the fit and finish of the gun is nice.
1718873
After the 8th cut. I set it down to move the wood about and it started smoking. Whatever Amp. it was, it got returned. Went with Craftsman again. The newer model is not as good as the old model. Bad buisness practice to make anything that last anymore. Only thing wrong with the new craftsman is the constant attention the chain needs to stay tight. The older model lasted me 12 years of abusive use. Can still find them online for sale. They have a black body and look more like a chainsaw and less like a hedge trimmer. Older model fits in a chainsaw hard carry case. When it comes to the torque power of a well built motor used in an 18" chainsaw .... 1 Amp. means little. A 14 Amp worked to hard will pop the breaker in most homes without a dedicated outdoor power outlet.
1883988
i got mine under 400. i am not sure why they made it that high. i know it used to be 289 or something like that. i guess if its got a brushless motor thats why