“With a tractor you want it heavy enough to be able to put all the power to the ground but not any heavier than that,” Murfey said. “Any extra weight you’re carrying beyond what you need is just creating extra soil compaction and hindering the ability of the crop to grow.” Ultimately, Deere trimmed 211 pounds out of the casting while still meeting all of the finite element analysis and functional require- ments of the part.


The Finished Product Eight cores are needed for each of


the casting, and they are automatically gantry-set at two stations on the line. T e castings are 100% machined at


GMT Corporation, Waverly, Iowa, and delivered to Deere’s plant in Water- loo, Iowa, where internal components are assembled. T en they are sent to tractor cab and assembly operations in Waterloo for the tractor builds. T e 9RX 4-Track hit the market


in February and has brought what Deere wanted. It off ers less soil compaction, a


better turning radius, no skidding and other benefi ts. T e 9RX is a very eff ective puller,


with its four large axles and undercar- riages transferring power from the engine to the ground. “The component carries the gear


train and it supports the whole tractor, the undercarriage for the track system,” Lubben said. “It limits the articulation of the un- dercarriage and basically supports the tractor, transfers the torque from the axle to the shaft and encloses all the gear train. It’s one of the largest parts we pour at our facility.” 


Is this you when your


foundry is working on your casting order? Relax and give your next job to


INDUSTRIES, INC. Quality Castings On-Time & Worry-Free!


Gray Iron castings up to 40 pounds. (Class 25-35) Greensand and Shell molding. (Disamatic, Osborn & Hunter molding)


0ORTSMOUTH /( INDUSTRIES, INC. s sWWW OSCOIND COMs#ONTACT 4OM+AYSER Jul/Aug 2016 | METAL CASTING DESIGN & PURCHASING | 31 


“


With a tractor you want it heavy enough to be able to put all the power to the ground but not any heavier than that. Any extra weight you’re carrying beyond what you need is just creating extra soil compaction and hindering the ability of the crop to grow.” —PETE MURFEY, JOHN DEERE


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