The Shigiya GSU-40B is a high-capacity surface grinder built for precision grinding of larger, flat workpieces. It delivers consistent accuracy through a rigid machine structure, stable thermal performance, and smooth, controlled table motion during extended production runs. As a result, the GSU-40B supports reliable surface finishes and tight tolerances in demanding surface grinding applications.
The Shigiya GSU-40B is a high-performance CNC universal grinder designed for efficient, multi-process grinding in a single chucking. As manufacturing demands grow more complex, this universal cylindrical grinder ensures top-tier precision, reduced cycle times, and versatile operation. Whether you’re tackling high-mix, low-volume jobs or precision components, the GSU-40B delivers accuracy and productivity every time. Incorporating a user-friendly CNC system and rugged construction, the GSU-40B maintains stability and repeatability across a wide range of applications. As a result, manufacturers gain the flexibility needed to handle tight tolerances and diverse part geometries, without compromising on throughput.
One standout feature is the NC swivel wheel head, which enables various wheelhead installation patterns. This innovation streamlines tool changes and allows for multiple grinding techniques on a single machine. Because of this, operators can easily switch between internal, external, and face grinding with minimal setup. Furthermore, the NC-controlled wheel head simplifies complex angle adjustments, which improves efficiency in operations that require frequent configuration changes. This makes it ideal for production environments that demand both speed and precision.
The GSU-40B provides high-precision grinding that meets the needs of today’s advanced manufacturing. Beyond cylindrical grinding, it supports polygonal grinding for components with non-round geometries. This added versatility is perfect for creating precision parts used in sectors like aerospace, medical, and automotive. Moreover, the machine’s rigid structure reduces vibration and thermal deformation, leading to smoother finishes and tighter tolerances. Even when performing demanding polygonal grinding, the GSU-40B ensures parts are consistently accurate and production-ready.
Equipped with dual wheel spindles, this grinder allows manufacturers to perform multiple operations in one setup. This not only shortens cycle times but also minimizes operator intervention, making the process far more efficient. In turn, productivity increases without compromising part quality. Thanks to this dual-spindle setup, shops can perform roughing and finishing operations without swapping wheels. Consequently, downtime drops and overall efficiency rises.
Metric
| Specifications | Units | |
|---|---|---|
| Swing Over Table | mm | 410 |
| Distance Between Centers | mm | 470, 720, 970, 1470 |
| Weight Capacity | kg | 150 |
| Machine Weight | kg | 4800 |
Standard
| Specifications | Units | |
|---|---|---|
| Swing Over Table | inch | 16.14 |
| Distance Between Centers | inch | 18.51/28.35/38.19/57.88 |
| Weight Capacity | lbs | 330.69 |
| Machine Weight | Ibs | 10582.19 |
The Shigiya GSU-40B is a CNC universal cylindrical grinder for external diameters, internal diameters, shoulders, tapers, and complex rotational features. A.W. Miller Technical Sales supplies and supports Shigiya grinding equipment throughout New York, Pennsylvania, Maryland, Delaware, Southern New Jersey, and Quebec, with application engineering, installation, training, and factory-certified service.
The 40-class GSU platform uses a direct-drive swiveling wheelhead for accurate angular positioning. Published GSU-30/40B configurations provide 300 or 410 mm swing, several center-distance choices through roughly 1,500 mm, a 150 kg between-centers load, and a 510 mm wheel. Final machine selection should be based on the complete workpiece, stock allowance, tolerance, surface finish, wheel and dressing package, workholding, gauging, coolant system, automation target, and production rate.
Applications commonly evaluated for the Shigiya GSU-40B include:
Direct-drive wheelhead positioning supports OD, ID, taper, and shoulder operations without relying on manual angular repositioning. The process should assign each feature to the wheel and approach that provides the best access and rigidity.
Universal capability allows internal and external features to remain tied to one workholding datum when the bore size, wheel reach, and collision envelope permit.
Abrasive type, grade, bond, wheel dimensions, dress form, and dressing interval must be matched to material, stock allowance, finish, and cycle time. The GSU-40B process should be validated with the complete wheel and coolant package.
Centers or chucking, drive method, support, coolant filtration, temperature control, and gauge strategy determine whether the GSU-40B can hold the required size, roundness, cylindricity, and surface finish through production.
GSU-40B is configured for external diameters, internal diameters, shoulders, tapers, and complex rotational features. The exact operation set depends on wheelhead configuration, dressing, workholding, gauging, and the geometry that must remain tied to one setup.
Review swing, maximum grinding diameter, distance between centers or chuck envelope, supported mass, wheel clearance, steady-rest space, and loading access. Catalog capacity should be reduced by the real fixture and tooling package.
Common evaluations include precision shafts and journals, hydraulic and pump components, tooling and machine components, automotive and industrial parts. Material, stock allowance, tolerance, surface finish, annual volume, and current cycle time determine whether the application is technically and economically appropriate.
Accuracy depends on machine condition, foundation, warm-up, coolant temperature and filtration, wheel balance, dressing, work support, gauging, and compensation. The process capability must be established against the drawing requirement.
A.W. Miller should review the part print, material and hardness, incoming condition, stock allowance, grinding diameters and lengths, tolerance, finish, takt time, loading, gauging, dressing, coolant, and facility requirements.