Belt driven Hass has no guts

[Jeff the haas_guy]

I wonder if anyone is using a new Haas (VF2SSYT). It is belt driven and does not have the torque to cut at low speeds. I tried a 4 inch saw cutter, 1/8 thick, 100 rpm, 1.0 feed rate,small cuts and the cutter would actually stop as it was cutting. I also have had to replace drive belts twice in 2 years because apparently the coolant is sucked thru the gear box with the fan on the top of the machine, and over time, breaks down the belt and it has to be replaced. Anyone have this problem?

[Rocketmachinist]

Try a higher rpm. The more rpm you put into the spindle the more power and torque the motor will produce. What kind of material are you cutting into, if your cutter carbide?

[Jroc85]

That doesn't sound like a very good design for a CNC machine.

[Guest CNC Apps Guy 1]

You want affordable machine right?

[Greg Williams]

As the old saying goes,

 

 

 

Price, Reliability, Performance.

 

 

 

Choose any 2

[Mic6]

Coulda swore that was a Direct Drive machine. MIne is anyway. I was humming thru Ti with a 3" cutter at 60% load and it liked it!

[Jeff the haas_guy]

I believe you can buy it either way. My guess is belt drive is cheaper.

[LancoUSA]

They have a Few spindle Otions I think. We always op for the Two speed Gearbox that maxes out at 10000 rpm

[jeff]

I remember the old Mori Seiki MV Junior was belt driven spindle.

Talk about lack of horsepower! Could barely drill a 1/2" hole.

[Goldorak]

You want affordable machine right?

 

 

Off Topic , i really like this quote !!!

 

 

 

In Topic : does the machine got 2 speed ?

[mkd]

only Haas' 12000, 30 hp direct drive does not employ belts, i believe.

other G/B and non gear still use belt(S) between motor..

 

Ran a vf3 from the early 2000's that came with only one belt. pretty easy to blow it out. Tech said the spec was change to two belts.

gearbox machines have lots of torque on the low end.

[Hitachi]

Haas: Disposable mill, run the hell out of them, then throw it out and get a new one

[mkd]

Haas: Disposable mill, run the hell out of them, then throw it out and get a new one

here is a pic of part i'm working on; can't get that .001 shim between the part and granite. top and bottom are parralel within .0006"

guess i better dispose of my 10 year old Haas