have none of you ever taken a basic machine shop course?
the Wattage of your mill has 0 impact on the quality of the finished product. 0. nada.
the wattage of your mill merely is an indicator of how much speed and torque it can provide - and anyone who knows about milling metals will know there are formulas to determining cutting speed, and different formulas for different tools such as the ball end mill, toroid and multi-carbide.
knowing that the correct machining speed for metal is dependent on its properties, determines how much current will need to be produced.
assuming this is a spindle that works solely on electricity (which it doesnt)
air-fed spindles are essentially air-motors. they use compressed air to obtain a higher torque (and some of them use an electric motor to get the first 10 000 rpm going, before opening the valve) and use less overall electricity, and make the machine far less prone to static electricity discharge or magnetization.
so READ THE LITERATURE, 200W or 600W you will have to determine its peak power output (peak torque at what speed) to determine if it is at all good for milling your potential material.
in order to do that, get the material specs from your supplier, calculate your required cutting speed with the burs in your desired mill, and match that number to the power of the mill. you don't simply run the mill at 30k rpm for every job and expect smooth edges or nice surfaces, thats not how metal works.
typically you will want a mill that has 2x the peak power output of your typical mill job requirements. this is to ensure you always have enough power (that it isn't straining to cut your piece),and are not placing the mill at its highest output at all times; you don't drive your car at 200mph and disconnect the brakes that would not be sensible and your car wouldnt last long. so too do you use a greater number in your mill, because redlining your mill every time you use it will not make it last long.
Titanium is a SOFT metal. it is an aluminum derivative. it is simply more lightweight and has a higher tensile strength than some steel. it does not need much more power than an aluminum mill. it must be wet milled.
your standard industrial milling machine used in machine shops is a belt-driven electric motor spindle with only 6-12 speeds and 3 to 4 horsepower (3000 w at 4 hp) powered by 220vAC. it has this power in order to use tools to mill more than 1/4" at a time off of its stock using a 1/2" tool, not tiny wafers from a tiny tool like a cnc might do.
if that (which was meant to be hand operated and NOT numerically controlled) can mill 24-7 there is potential for smaller mills to do smaller production and not spend the enormous amounts of money and floorspace.
guys there is very very little need for a Haas, much less need for its power capacity if you are a simple lab trying to cut a few partials.
even if you are trying to compete with ***, i'd not buy such a thing. i would look to the proper machining tools for industrial CNC such as Deckel Maho (first choice) or Bridgeport (what i described above)
