The GL4i-100 SWITCH is a high-accuracy, versatile Universal OD Grinding Machine manufactured by JTEKT Toyoda. It is described as an “economical triple-duty cylindrical grinding machine” that is built to handle a wide range of external diameter (OD) and face grinding applications while ensuring long-term machining accuracy for high-production needs.

The GL4i-100 SWITCH is characterized by its manually adjustable wheelhead, which can be swiveled to Plain Head, 30-degree, or 45-degree angle positions. The 45-degree swivel is a key feature of the Switch series, providing increased thrust on the wheel diameter during face grinding, which translates to faster cycle times and a reduced risk of burning the workpiece surface during face grinds.

This model is engineered for general-purpose precision external grinding. Its core specifications include a Swing Over Table of 12.6 inches (320 mm) and a Distance Between Centers of 39.4 inches (1,000 mm), allowing it to accommodate moderately long workpieces. It can handle a Maximum Grinding Diameter of 11.8 inches (300 mm) and operates with a high Wheel Surface Speed of 8,500 SFPM (45 m/s) for efficient material removal and superior surface finish. The GL4i-100 SWITCH is a flexible and reliable machine for job shops and production facilities requiring high-accuracy cylindrical and angular grinding operations.