Chinese Spindles

[Ricardoco]

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

First of all i dont really need 18k and None of the links you put on there are quotes, but just guide prices, get some quotes and see what you get, the item i have posted is without motor, i am awaiting updated paperwork for that, and is new unlike some of the links you have provided, they are used/refurbished items and as such very overpriced, i want BT30 ATC 12k rpm max (just for flexability) so if you can go cheaper price new not used, then post the quotes and i will contact them and may even buy one..or more

Rick

To Beat we have

12k rpm spindle cartridge
BT30 ATC

$1522 = £976.52