- Machine tools
- Grinders
- CNC Cylindrical Grinders G5 Series
Unwavering precision.
Large CNC Cylindrical Grinders
between centers 4,000mm
between centers 1,500kg
※
ABOUT
Consistent precision and long-term
stability for large workpieces.
Automatic condition setting, diameter
measurement, and steady-rest
adjustment reduce skill-based
variation and workload.
G Series design and craftsmanship
sustain high precision.
STAT BEARING™, precision hand
scraping, and a highly rigid, low-vibration
design deliver lasting precision in the
grinding of large rolls and shafts.
Benefits
01
Automation of Condition Setting, Measurement, and Adjustment
Support functions such as Easy Operation and Automation Packages are available for different applications.
Easy Operation automatically determines optimal machining conditions, while Automation Packages automate diameter measurement and steady-rest adjustment.
Reduces continuous operator attendance, condition-setting effort, and dependence on operator skill.
02
More Efficient Machining of Workpieces up to 1,500 kg.
Available 1,500 kg load capacity between centers and a 15 kW grinding wheel spindle motor support larger, longer workpieces.
Handles heavy workpieces and demanding grinding across industries such as construction machinery, industrial machinery, steel, and film, expanding workpiece range and machining efficiency.
03
Sustained High Precision
Hand scraping, a high-rigidity, low-vibration bed, and STAT BEARING™, support stable grinding accuracy. Thermal design, heat dissipation, and insulation measures suppress thermal displacement.
These features help maintain high precision on large rolls and shafts with less reliance on major overhauls.
Download our latest product catalog free of charge for comparison and evaluation.
Four Values that Address On-Site Challenges
Key Features
value 01
Operation Support for
Any Skill Level
Reduced workload with responsive control
Automatic diameter measurement and steady-rest adjustment
Easy Operation
Steer-by-wire handle
value 02
Solutions for Large-
Workpiece Machining
Supports heavier workpieces, heavy-duty
grinding, and setup
Supports workpieces up to 1,500 kg
15 kW grinding wheel spindle motor
Tailstock taper adjustment function
Supports workpieces up to 1,500 kg
value 03
Stable Grinding
Accuracy
Minimizes variation and maintains high
precision
High-rigidity, low-vibration bed
STAT BEARING™
High-grade hand scraping
value 04
Safety and
Environmental Features
Supports a comfortable work environment
and energy savings
Full-cover configuration for all distances between centers
Sleep In / Wake Up functions
Energy consumption visualization
New indicates features introduced on the G5.
※ Some features are optional.
Machine Specifications
Product Introduction Video
Download our latest product catalog free of charge for comparison and evaluation.
Why Customers Continue to Choose JTEKT Grinding Machines?
01
High-Grade Hand Scraping on All Major Sliding Surfaces
Skilled technicians hand-scrape all major sliding surfaces.
This craftsmanship achieves accuracy machining alone cannot reproduce.
Improved straightness and reduced sliding-surface wear maintain high precision over the long term.
This reduces reliance on major overhauls and helps lower maintenance costs.
02
STAT BEARING™ Maintains Rotational Accuracy Virtually Indefinitely
The grinding wheel spindle incorporates the STAT BEARING™ fluid bearing.
Combining hydrostatic and hydrodynamic pressure, its non-contact design minimizes wear while delivering high rigidity and damping.
Stable rotational accuracy and reduced vibration minimize variation in machining accuracy.
03
Customer Support that Helps Keep Production Running
24/7 support and collaboration across our domestic and global service locations enable rapid response to on-site challenges.
Manufacturing experts provide long-term support for reliable machine operation.
04
Trust and Proven Performance
No. 1 Share of the Japanese Cylindrical Grinder Market
JTEKT cylindrical grinders have long been chosen across a wide range of industries.
Our problem-solving track record—from design and manufacturing to machining technology—has earned trust in both JTEKT machines and support.
