The GC20Mi-35 by JTEKT Toyoda is a high-speed CNC Camshaft Grinding Machine developed to meet the need for technological innovativeness, high productivity, and exceptional accuracy in grinding automotive camshafts.

The GC20Mi-35 is a modern CBN-capable cam grinder that delivers a high-quality grinding surface with stable accuracy. It features a compact footprint ideal for efficient factory layouts. This machine’s precision is guaranteed by core JTEKT technologies, including the renowned TOYODA STAT BEARING and a floating plate system.

To achieve superior grinding quality and quick response, the GC20Mi-35 incorporates a high-response wheelhead feed mechanism.⁵ This mechanism utilizes a light-weight wheelhead, static pressure slide way, and linear motor drive to minimize lost motion and backlash.⁶ The newly developed high-response servo system further enhances the accuracy and quality of both pin and journal grinding surfaces.

The grinder is designed for productivity, with setup changeover items available to quickly accommodate workpieces of different lengths and diameters, significantly reducing downtime.

Key Specifications:

• Type: High Speed Camshaft Grinder
• Distance Between Centers: 13.8 inches (350 mm)
• Swing Over Table: 12.6 inches (320 mm)
• Maximum Grinding Diameter: 11.8 inches (300 mm)
• Grinding Wheel Speed: Supports high-speed CBN grinding, with the 350 mm wheel running at 23500 SFPM (120 m/s). It also supports optional speeds and smaller wheels.
• Controls: Equipped with the user-friendly Toyoda GC50 controls.
• Footprint: Small machine footprint.
• Primary Application: Grinding cam lobes and journals on automotive camshafts.