motor sizing for lead screw drive

[duk748]

hello - sorry if this has been talked about before - i have a 3 1/2" dia. 5 threads/inch lead screw that is supported on 1 end mounted vertically lifting a 200# load -
i am having trouble sizing a motor/sprocket drive system to move the screw up & down 36" in 3-4 sec.s - this is an existing application but i have no experience in lead screw drives -
any help or formulas would be greatly appreciated - thank you

 

[handleman]

Did any of the resources to which you were pointed last time give you any help?

https://www.eng-tips.com/viewthread.cfm?qid=443449