If you are on previous versions of Maya (pre 2017), you can now have an easy way to bake instances. Bake Instancer is a small script for Maya. With you can bake an instancer node into individual animated pieces of geometry. All it takes is a single click.
This script lets you bake an instancer node into individual animated pieces of geometry.
Maya’s motion graphics toolkit (added with 2017) has a tool that lets you bake instances. If you are using an older version of Maya, and haven’t purchased MASH for it, the Bake Instancer tool can save you some time. Just set the instance node, set the range and hit the bake button.