What is a Centerless Grindnig Machine?
High Productivity
Free rotation without fixing enables fast, efficient multi-part processing.
Precise Grinding Performance
Ensures precise cylindrical grinding with consistent diameter and surface finish.
Versatile Grinding for a Wide Range of Components
Efficiently processes diverse components, regardless of type or shape.
Centerless grinding machines have evolved significantly since the Industrial Revolution and now play a critical role in various industries.
In particular, they have become indispensable tools in the aerospace, automotive, and precision machinery manufacturing sectors.
Products & Services
Screw external/internal thread grinding machine(SGTE .SGTI)
ORSKOREA
ORSKOREA’s thread grinding machines are designed for high-precision machining of both internal and external threads, covering a wide range of thread profiles and dimensions. These machines are critical for producing aerospace fasteners, defense system parts, precision ball screws, and other components where accuracy and durability are vital.
Key Advantages
• CNC Control: 4-axis (SGTE) and 5-axis (SGTI) for complex thread profiles
• High-rigidity structure minimizing vibration and thermal distortion
• Built-in dressing and balancing units for consistent quality
By shortening processes and improving efficiency, ORSKOREA’s thread grinders reduce costs while enabling high-value, high-accuracy production. They also serve as advanced domestic alternatives to imported machines, strengthening localization and export competitiveness.
Key Advantages
• CNC Control: 4-axis (SGTE) and 5-axis (SGTI) for complex thread profiles
• High-rigidity structure minimizing vibration and thermal distortion
• Built-in dressing and balancing units for consistent quality
By shortening processes and improving efficiency, ORSKOREA’s thread grinders reduce costs while enabling high-value, high-accuracy production. They also serve as advanced domestic alternatives to imported machines, strengthening localization and export competitiveness.
Universal cylindrical grinding machines(SGU35)
ORSKOREA
ORSKOREA’s cylindrical grinding machines are engineered to deliver superior surface quality and tight tolerances for high-value parts. They are widely used in aerospace, defense, automotive, medical, and electronics industries for components that demand both strength and precision—such as engine shafts, landing gear parts, gears, and bearings.
Key Advantages
• Handles diverse, small-batch productions with consistent repeatability
• Exceptional dimensional precision for tight-tolerance parts
• Supports tapered and curved surface grinding
• Flexible workpiece capacity with swing up to 350 mm
• Smooth table movement with low noise and vibration for stable operation
By combining precision, versatility, and long-term reliability, ORSKOREA’s cylindrical grinders provide manufacturers with the performance needed to meet mission-critical requirements.
Key Advantages
• Handles diverse, small-batch productions with consistent repeatability
• Exceptional dimensional precision for tight-tolerance parts
• Supports tapered and curved surface grinding
• Flexible workpiece capacity with swing up to 350 mm
• Smooth table movement with low noise and vibration for stable operation
By combining precision, versatility, and long-term reliability, ORSKOREA’s cylindrical grinders provide manufacturers with the performance needed to meet mission-critical requirements.
Centerless ginding machines (SGC 300)
ORSKOREA
ORSKOREA’s centerless grinding machines ensure stable accuracy and durability without the need for chucks or centers. By allowing workpieces to rotate freely between the grinding and regulating wheels, they deliver high-efficiency and uniform machining for shafts, pins, housings, and other cylindrical components used in aerospace, defense, and advanced automotive systems.
Key Advantages
• High productivity through fast, efficient multi-part processing
• ±2μm precision and long-term repeatability
• Versatility to handle components from small to large sizes
• Hydrostatic slides and spindles minimizing heat and vibration
• Proven stability for high-value part manufacturing such as engine components, battery cases, and optical housings
By combining productivity, accuracy, and reliability, ORSKOREA’s centerless grinders significantly enhance competitiveness in both defense and civilian applications.
Key Advantages
• High productivity through fast, efficient multi-part processing
• ±2μm precision and long-term repeatability
• Versatility to handle components from small to large sizes
• Hydrostatic slides and spindles minimizing heat and vibration
• Proven stability for high-value part manufacturing such as engine components, battery cases, and optical housings
By combining productivity, accuracy, and reliability, ORSKOREA’s centerless grinders significantly enhance competitiveness in both defense and civilian applications.
High Frequency Spindle
ORSKOREA
ORSKOREA’s high frequency grinding spindles, operating at speeds up to 120,000 rpm—the highest level in Korea—are engineered for ultra-precision and durability in critical defense and aerospace applications. In addition to belt-driven, built-in motor, hydrostatic, and hydrodynamic types widely used in semiconductor and precision equipment, our spindles are customized to deliver the exact speed and power output required by customers. With over 25 years of expertise in repairing and retrofitting leading Japanese, German, and Swiss brands such as TOYO, KOYO, OKUMA, GMN, and Fischer, and with multiple proprietary patents including joint developments with Schaeffler Korea, ORSKOREA ensures proven reliability. These spindles are ideal for machining high-value defense components such as armored vehicle gears, drone actuators, aircraft engine parts, multispectral sensor housings, and advanced optical or communication devices, supporting the competitiveness of both defense and civilian manufacturers.
People
Description
[What is a Centerless Grindnig Machine?]
A centerless grinding machine, as the name implies, is a grinding method that operates without a center support. Instead of being fixed by a chuck or center, the workpiece rotates freely while the grinding wheel precisely refines its surface to achieve the desired shape. This process is highly effective in maintaining clean and uniform diameters and surfaces.
Centerless grinding machines are widely used for circular parts and are particularly optimized for machining the outer diameters of cylindrical components.
[Advantage of Centerless Grinding Machine]
- High Productivity
- Precise Grinding Performance
- Versatile Grinding for a Wide Range of Components
[Tailored to Your Manufacturing Needs :From Small to Large Parts]
The SGC series includes models designed for various workpiece sizes.
- SGC 200 and SGC 300 feature a relatively narrow regulating wheel, making them ideal for small to medium-sized parts.
- SGC 500, SGC 500K, and SGC 500C have a wider regulating wheel, allowing for efficient processing of large or heavy components.
A centerless grinding machine, as the name implies, is a grinding method that operates without a center support. Instead of being fixed by a chuck or center, the workpiece rotates freely while the grinding wheel precisely refines its surface to achieve the desired shape. This process is highly effective in maintaining clean and uniform diameters and surfaces.
Centerless grinding machines are widely used for circular parts and are particularly optimized for machining the outer diameters of cylindrical components.
[Advantage of Centerless Grinding Machine]
- High Productivity
- Precise Grinding Performance
- Versatile Grinding for a Wide Range of Components
[Tailored to Your Manufacturing Needs :From Small to Large Parts]
The SGC series includes models designed for various workpiece sizes.
- SGC 200 and SGC 300 feature a relatively narrow regulating wheel, making them ideal for small to medium-sized parts.
- SGC 500, SGC 500K, and SGC 500C have a wider regulating wheel, allowing for efficient processing of large or heavy components.
