Hi Maryjean and welcome to the Forum.
How many male chicks do you need to cull? I don't know what the cutoff point would be, where it would be best to obtain specialist equipment for the job, though I can see there would be a stage in the expansion of your business where this would be an issue. Presumably you are hatching sexlinked chicks?
I'm not sure whether anyone on here will be able to give you the advice you need because this is basically a hobby forum. We tend to agonise over how to rehome our few surplus cockerels, or else how to cull them once the neighbours start to complain! Or we buy POL pullets and leave the responsibility for dealing with the boys to the breeder. But we do understand the need to deal with male chicks/cockerels, it's just how to do this as humanely as possible which concerns us as I'm sure is the case with you also.
Sorry not to be more help, but I would be interested to know how you get on with this problem, in due course.