Hp=?Kw

[glenn k]

I'm looking at getting another drill press and are having trouble compairing. A 3/4Hp motor is how many Watts? I want one with a morse taper chuck.

[MajorPanic]

1hp = 746watts

3/4hp = 559watts

[glenn k]

thankyou

[glenn k]

thankyou

[echnidna]

However bear in mind that 746 watts is the power consumed by a motor.
A true 1hp motor consumes much more than 746 watts. Possibly about 1200watts

[Ashore]

1hp = 746watts

whos on first, watts the players name on second,


Just reminded me of that fantastic abbot & costello skit





Don't take life too seriously; No one gets out alive.

[Groggy]

Glenn, if you want a new one, AllTools have some nice Rexxon units on special in their latest cattledog released on Friday (? I think). I was looking at them myself in Hoppers Crossing on Saturday, quite well made.

[glenn k]

Nightingale electrics in the city have a 750watt at $250 don't know if they have a morse taper though. I will look ar alltools thankyou.

[HD200Renegade]

See this link for Table of HP's.
Attachment 49980

[Iain]

But how many watts in a morse taper

[masher]

I'm looking at getting another drill press and are having trouble compairing. A 3/4Hp motor is how many Watts? I want one with a morse taper chuck.

Google will tell you the answer; just type in "0.75 hp in W"

It says: 559.274904 Watts

[NCArcher]

See this link for Table of HP's.
Attachment 49980

The 'Amps' values in that table are not accurate. With AC current there is more to the calc than Watts / Volts.

[gerhard]

Hi Glenn,

Morse tapered hollow fittings on drill presses typically come in sizes MK1, MK2 and MK3. MK1 is small, these are little machines for tool and model and jewelry makers. A MK1 tapered adapter shaft often has a B10 cone or 3/8 thread on the other end to fit a chuck that spans 6 mm bits maximum. MK2 is typically associated with a drill capacity in metal from 10 to 16 mm and MK3 will suffice up to 26, 32 if need be. 1 HP output is quite a lot for a MK2 drill press, more often it will be 1/2 to 3/4 HP. MK3 is a already a serious metal shop drill, the motor will be in the 1 to 2 HP range. Larger than that will carry MK4 or MK5 and will have 3 phase motors of up to 5 HP.

I don't know if i have helped you at all, but these are average values that are to be found in Dutch practices.

Regards,

Gerhard

[gerhard]

Forgot about the Watts. About 750 Watts output equals 1 HP. But output does not equal Watt consumption of the electric motor. There are losses, such as heat, magnetic conduction, bearing friction, the power the cooling fan takes, etc. Drill presses usually have brushless induction motors and their efficiency is around 60 to 70% in quality brand products and 50% or less in cheaper products from China or Taiwan (which will reflect in the purchase price). A motor with a running condenser will have a better efficiency than a motor with a starting condensor, which is switched off when reachting nominal rpm by means of a centrifugal switch. So for 1 HP the power consumption of the motor will be around 1100 to 1500 Watts, depending on the build quality and the starting and running technique of the induction motor. If output power is separately specified (N2 or P2 or No, with input being N1 or P1 or Ni)), it will often be mentioned in kiloWatts (kW). So 1HP is 750 Watts or 0.75 kW.

Gerhard

[ernknot]

watts a morse taper?