Water cooled chinese spindle collets, Advice from owners please

[JAZZCNC]

Hey guys, I have ordered a chinese cnc 3040 with a 1.5kw spindle.

I am wondering from owners of the watercooled 0.8kw 1.5kw and 2.2kw could tell me if you have ever dismantled one?

The one i bought comes with an ER11 collets, but there seems to be replacement collet system for spindles from ER11 ER16 and ER20 and i am wondering if they are actually interchangeable?

Would anyone be able to supply detailed pictures and if possible show one dismantled and/or confirm they are changeable?

Yes I have striped one and no they wont because of the way the rotor is part of the collet shaft.
The different spindle KW and ER sizes etc make them completely different so therefore not interchangable.

The ER shafts you link to are not replacenments but more extensions and adapters for drilling machines etc or building your own spindle. One of them is MT2 to ER adapter used on mills and lathes.

Here's some pics of a 2.2KW I killed.!!