Crankshaft Grinder Uses Two Wheelheads

Erwin Junker Maschinenfabrik's Jucrank 6000 pin-chasing, crankshaft grinder, which produces truck and heavy-duty cranks, accommodates two independent CBN wheelheads for grinding two main or pin bearings simultaneously. This machine has 59.055-in. (1,500-mm) clamping length, 55.118-in. (1,400-mm) grinding length, and rotating diameters up to 11.0236 in. (280 mm). There is in-process gaging and automatic compensation, and the CBN wheel and oil-coolant combination reportedly increases wheel life. A CNC handles all machine functions.

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