SWITCH Series
JTEKT SWITCH Series Grinding Machines deliver true versatility in cylindrical grinding - combining exceptional rigidity, accuracy, and ease of use. Designed as a universal solution for both straight and angular grinding, the SWITCH Series features a manually adjustable wheelhead that allows operators to seamlessly transition between applications.
The 45-degree swivel wheelhead provides greater thrust on the wheel diameter during face grinding, resulting in faster cycle times, improved surface finishes, and significantly reduced risk of thermal damage or burn. This intelligent mechanical design enhances both productivity and part quality, making the SWITCH Series ideal for a wide range of production environments requiring adaptable precision.
Built with JTEKT’s renowned craftsmanship and engineering heritage, the SWITCH Series offers stable performance, simplified setup, and dependable accuracy across a wide range of materials and geometries—all in a compact footprint that fits seamlessly into any manufacturing cell.
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Standard Features
- Toyopuc Touch conversational HMI CNC controller with GC70
- Heavy-duty cast-iron machine construction, hardened and hand-scraped flat and V slideway system
- JTEKT patented STAT BEARING wheelhead featuring no metal-to-metal contact
- JTEKT floating plate used to absorb runout and vibration of the ballscrew
- Two-piece swivel table arrangement for grinding and operational flexibility
- Coolant isolation cover over machine base for increased thermal control and stability
- Automatic lubrication unit for machine slideway surfaces for maintenance-free operation
- Available with full machine guarding and many customized options to suit all production needs
Triple-Duty Grinding Efficiency
True to its name, the JTEKT SWITCH Series delivers three-in-one versatility with its innovative triple-duty wheelhead design. Operators can effortlessly switch between straight, 45-degree, and 60-degree angular wheel positions—making the machine adaptable to a wide range of part geometries and grinding applications without the need for multiple setups or dedicated machines.
This flexible configuration enables both external and face grinding within a single clamping, improving accuracy while reducing cycle times and handling. The 45-degree and 60-degree swivel positions provide enhanced thrust efficiency on the wheel diameter, delivering faster material removal, superior surface finish, and minimized risk of burning during face grinding.
With the SWITCH Series, manufacturers gain universal grinding capability in one compact, highly efficient platform, ideal for job shops, tool rooms, and production lines that demand performance, precision, and flexibility.
Ultimate Long-Term Accuracy
At the heart of our wheel spindle is the proprietary STAT BEARING. This unique design eliminates all metal-to-metal contact in the bearing to reduce wear. This design also features a highly rigid structure with excellent dampening characteristics, leading to excellent rotational accuracy.
Thermal Displacement Correction
The GL3Pi and GL4Pi models are equipped with a contact-type thermal displacement correction sensor that continuously monitors and compensates for dimensional changes caused by daily temperature fluctuations within the machine structure. By automatically adjusting for thermal expansion and contraction, the system ensures that the grinding process remains consistently precise—even as ambient and machine temperatures vary throughout the day.
This intelligent compensation significantly reduces machine warm-up time and allows operators to begin producing accurate parts more quickly. The result is stable, repeatable grinding accuracy over extended production runs, improved process reliability, and less time lost to temperature-related setup adjustments.
Models & Specifications
| Distance Between Centers | in (mm) | 19.69 (500) |
| Swing Over Table | Ø in (mm) | 12.6 (320) |
| Grinding Diameter (Max) | in (mm) | 11.8 (300) |
| Wheel Surface Speed | SFPM (m/s) | 8,500 (45) |
| Distance Between Centers | in (mm) | 39.4 (1,000) |
| Swing Over Table | Ø in (mm) | 12.6 (320) |
| Grinding Diameter (Max) | in (mm) | 11.8 (300) |
| Wheel Surface Speed | SFPM (m/s) | 8,500 (45) |
| Distance Between Centers | in (mm) | 59.0 (1,500) |
| Swing Over Table | Ø in (mm) | 12.6 (320) |
| Grinding Diameter (Max) | in (mm) | 11.8 (300) |
| Wheel Surface Speed | SFPM (m/s) | 8,500 (45) |
| Distance Between Centers | in (mm) | 78.7 (2,000) |
| Swing Over Table | Ø in (mm) | 12.6 (320) |
| Grinding Diameter (Max) | in (mm) | 11.8 (300) |
| Wheel Surface Speed | SFPM (m/s) | 8,500 (45) |