Cincinnati-Milacron/Heald 174 Adjustable Gap Internal Grinder 42" Swing 7.5HP Spindle

The #174 Cincinnati-Milacron/Heald adjustable gap-type "plain" internal grinder, model 174, features a 4500 RPM Heald "Red Head" grinding wheel spindle, hydraulically operated wheel guard, 42″ face plate, and a table-mounted grinding wheel dresser. The machine is further equipped with a Barnes coolant filtration system and an automatic lubrication system. Key specifications include a maximum swing inside the coolant splash guard of 42″ and a maximum hole ground diameter of 20″. It has a maximum table stroke of 22″ and a grinding stroke range from a minimum of 5/8″ to a maximum of 13″. The standard gap adjustment ranges from 11.5″ to 20″. The workhead spindle has a 1.68″ diameter hole-thru and a 12″ flange, with speeds ranging from 41 to 123 RPM. Grinding table speeds are infinitely variable from 0 to 18 FPM. Power is supplied by a 7.5 HP/7500 RPM wheelhead spindle motor and a 5 HP/1150 RPM workhead chuck motor, operating on a 220-440/3/60 electrical system. Approximate weight is 17,000 lbs.