MICHIGAN Rotoflo Type 3237 Cold Forming Machine. Original Serial Number: 4590 ExCello Serial Number 3888 New 1975 rebuilt by ExCello late 1990’s Country of Origin: USA For the coldforming of profiles for serrations (straight or angular), spiral teeth, oil grooves, threads and knurls. Capacity: Maximum slide stroke                                     1065 mm Maximum rack length                                     915 mm Maximum […]