Nov 16, 2003· Sunnen portable crank grinder. Hi all! I need to set up my Sunnen portable crankshaft grinder on a 5 HP Bessemer. Has anyone ever used one for an oddball job like that? If so, how did you anchor and support it. I have some ideas but was looking for insight from someone who has "been there, done that". Does anyone have a manual for a model K ...