I believe that the ER32 holder is intended for CNC use,
This does not mean that a tool holder "intended for cnc use" can not be used in a manual machine with the same spindle.
ER is a tool holding system independent of the machine spindle, do not confuse a tool holding system with a spindle taper.
Many do and this leads to much confusion, as Jim Dawson noted your machine will have an R8 spindle taper, this will require an R8 to ER collet tool holder.
Put simply you will place an R8 taper ER tool holder in the spindle then place the tools in the ER holder, simple as mud really.
If you require typical hobbyist .0001" accuracy this will not be ideal.
A typical cat spindle machine uses tool holders with a feature that allows them to be changed automatically, R8 does not support this.
If indeed you would like a good deal of accuracy and tool holding ability buy a machine from PM with an HSK spindle.