Gemini Series | JTEKT Machinery North America
Gemini XL

Gemini Series

The Gemini Series is engineered around a robust twin-spindle platform designed for maximum productivity and long-term accuracy. The twin-spindle configuration effectively doubles output capacity, allowing two parts to be machined simultaneously without compromising precision. With a machine footprint only slightly larger than a single-spindle setup, manufacturers can achieve twice the productivity within the same floor space.

The cross-slide design and twin ballscrew drive system deliver smooth, synchronized motion across both spindles. The Gemini XL offer high-strength table construction, while options like the W-axis and automatic pallet changer (APC) provide added versatility for multi-operation machining. Combined with a high-precision linear guide system and precision-ground ball screws, the Gemini Series delivers exceptional geometric accuracy and repeatability across demanding production cycles.

Request a Quote

Gemini Inside

Twin-Spindle Productivity

The Gemini Series is built around a high-performance twin-spindle system, engineered for superior productivity, precision, and efficiency in high-volume machining. Each spindle operates independently, allowing for simultaneous part processing and cutting of complex geometries, while maintaining consistent accuracy across both work zones.

Key Spindle Features:

  • Twin-Spindle Design – Doubles machining capacity without doubling floor space, providing exceptional output per square foot.
  • High-Speed Spindle Options – Available in speeds up to 12,000 RPM, enabling efficient cutting for a wide range of materials and applications.
  • Big Plus Spindle Interface (Optional) – Ensures superior tool-to-spindle contact, maximizing rigidity, accuracy, and surface finish.
  • Independent Control per Spindle – Allows each spindle to operate with separate programs or synchronized motion for parallel machining.

Gemini Skeleton

Engineered for Strength, Speed, and Stability

The Gemini Series is purpose-built for high-volume production environments that demand precision, repeatability, and long-term structural reliability. Its robust twin-column and twin-spindle design delivers twice the productivity within a compact footprint, while maintaining the rigidity required for continuous heavy-duty machining. Every aspect of the Gemini’s construction—from its Meehanite cast iron base to the FEM-optimized structure—is engineered to minimize vibration, enhance cutting accuracy, and ensure stable performance across both spindles.

At the heart of the Gemini’s design is a symmetrical layout that balances mass and movement on each spindle side, reducing deflection during simultaneous machining. The high-rigidity roller guideways on all axes allow for precise linear motion and rapid acceleration, even under high cutting loads. A wide-span column base provides exceptional stiffness and vibration damping, maintaining geometric accuracy during high-speed operations. Additionally, the servo-driven twin ballscrews deliver synchronized movement and improved load distribution—ensuring consistency across work zones and superior part quality.


Models & Specifications

Table Size (width)in (mm)47.2 (1199)
Table Size (length)in (mm)18.9 (480)
X-axis Travelin (mm)23.6 (599)
Y-axis Travelin (mm)17.7 (450)
Z-axis Travelin (mm)23.6 (599)
Spindle Speed Max.RPM10,000
Spindle Drive MotorHP15 /30
Tool TaperCAT40
Tool Storage Capacity20
Tool Weight Max.lbs (kg)17.6 (8)