I am also interested in the ability of the 1F to handle a 2.2ke spindle.
In one forum thread, a member asks the question of an 18 lb spindle and gets a 1F support response is that it will be fine. I’m looking at a 7kg spindle (essentially the same weight-wise). The chap I’m thinking of buying it from, whilst doesn’t know the 1F directly, says it will be too heavy. I’m now in a quandary; do I buy the beast or go for a 1.5 kW? Like some members, I want to use 1/2 in cutters.
Does anyone have experience working with a 2.2 kW spindle?