GF Series (Crankshaft) | JTEKT Machinery North America
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GF Series Machine

GF Series

The GF Series is a compact yet powerful solution designed specifically for the precision grinding of crankshafts. Engineered to deliver superior accuracy in a space-saving design, it incorporates JTEKT’s advanced technologies to ensure consistent performance and reliability. At its core, the grinder features the patented STAT® BEARING and floating plate structure, eliminating metal-to-metal contact while providing outstanding rigidity and vibration damping for long-term accuracy. Enhancing this foundation, the controls offer intuitive operation and flexible programming, enabling operators to achieve exceptional surface finishes and productivity with ease.

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Crankshaft workpiece

Advanced Control and Stability for Superior Grinding

Simultaneous C-axis and X-axis control enables the production of exceptionally smooth and precise machined surfaces, while the direct-drive wheel spindle delivers outstanding accuracy with every cycle. To further enhance quality, high-precision coolant systems are integrated to minimize grinding defects, ensuring consistent surface finishes even under demanding conditions. In addition, the wheelhead is engineered with reduced thermal displacement, maintaining stability and precision over long production runs for uncompromising performance.

Models & Specifications

GF16S-25GF16S-32
Distance Between Centersin (mm)9.84 (250)12.60 (320)
Swing Over TableØ in (mm)6.29 (160)6.29 (160)
Grinding Diameter (Max)in (mm)6.2 (160)6.2 (160)
Wheel Surface SpeedSFPM (m/s)3.1 (80)3.1 (80)
Optional Wheel Surface SpeedSFPM (m/s)4.7 (120)4.7 (120)
GF32Mi-35GF32Mi-63
Distance Between Centersin (mm)13.8 (350)24.8 (630)
Swing Over TableØ in (mm)12.6 (320)12.6 (320)
Grinding Diameter (Max)in (mm)2.7 (70)2.7 (70)
Wheel Surface SpeedSFPM (m/s)4.7 (120)4.7 (120)
Optional Wheel Surface SpeedSFPM (m/s)3.1 (80)3.1 (80)
GF50Mi-70GF50Mi-140
Distance Between Centersin (mm)27.6 (700)55.1 (1,400)
Swing Over TableØ in (mm)19.7 (500)19.7 (500)
Grinding Diameter (Max)in (mm)3.3 (85)3.3 (85)
Wheel Surface SpeedSFPM (m/s)4.7 (120)4.7 (120)