Quote Originally Posted by Jonathan View Post
For that amount of money I'd want to be getting more than 12000rpm. 18000rpm would be much better, but it seems toolholders which are sufficiently well balanced for that speed are rare and expensive.

This lot look worth investigating:

http://www.alibaba.com/product-gs/54...g_Machine.html

http://www.alibaba.com/product-gs/53...otor_BT30.html

http://www.alibaba.com/product-gs/53...dle_Motor.html

http://www.alibaba.com/product-gs/46..._with_atc.html

http://www.alibaba.com/product-gs/36...dle_Motor.html

In particular the first one - 1130-24Z or 1130-16Z. The 24Z (24krpm) has 35mm bore bearings, but the 16Z (18krpm) has 40mm bore thin section bearings. Need to investigate which is strongest. The one you have a quote for uses 45mm bore bearings, so it would be more rigid, but any of these will be more than the standard 2.2kw ER20 spindles which only use 25mm bearings. If they can't wind the -24Z for 220V then it'll have to be the 16Z spindle anyway.

http://lyzyzc.en.alibaba.com/product...NS7CE1DDL.html
Oh just noticed three of your links are for Ms Xing....lol dont believe all you read will you

Here was The quote she gave me...

"Elizabeth Xing：(02:14:19):

3.2 kw BT30 18000rpm spindle
motor is 110mm, OK?

Rick：(02:15:35):
ok 380v
spindle


Elizabeth Xing：(02:17:26):


2199 dollars per piece, not
including the pull stud and toolholder.

Sorry, 2177 dollars per
piece.

Reply View
Context

Rick：(02:18:10):

and
220v


Elizabeth Xing：(02:18:20):

the
same.

Rick：(02:18:43):


Ok and what price for shipping
to UK

Elizabeth Xing：(02:19:31):

Shipped by DHL, 249
dollars.Package weight 23
kg.




Any questions???