Four Core Technical Advantages
Integrating maglev, linear motor, PMSM spindle and other cutting-edge technologies to redefine precision grinding standards
High Damping
Fixed base and bridge are cast from mineral casting as one piece, providing superior vibration absorption for stable machining.
High Cutting Capacity
PMSM spindle enables ultra-high speed grinding, significantly improving efficiency while ensuring excellent surface quality.
High Precision
Linear motor drive with backlash-free transmission and zero-wear design maintains stable accuracy over time.
5-Axis Linkage
Cradle-type 5-axis system enables integrated machining of complex components, expanding application range.
Maglev Vertical Jig Grinder




Planetary Carrier Composite Grinder
Purpose: For grinding and milling of RV reducer planetary carriers.
Purpose: For grinding of RV reducer pin gear housings. Complete internal/external diameter, end face and internal gear grinding in a single clamping.


Technical Specifications
Complete specification comparison for VGU300 / VGU400 / VGU500 models
| Category | Item | Unit | VGU300 | VGU400 | VGU500 | |
|---|---|---|---|---|---|---|
| Machining Range | Internal Grinding Size | mm | Φ30~200 | Φ30~300 | Φ30~400 | |
| External Grinding Size | mm | Φ0~300 | Φ0~400 | Φ0~500 | ||
| Max Workpiece Swing Dia. | mm | Φ250 | Φ250 | Φ250 | ||
| Max Workpiece Height | mm | 250 | 350 | 450 | ||
| Travel | Y-Axis Travel | mm | 500 | 600 | 800 | |
| X-Axis Travel | mm | 300 | 500 | 500 | ||
| Z-Axis Travel | mm | 250 | 300 | 420 | ||
| Spindle Face to Table Distance | mm | 70-320 | 85-385 | 70-490 | ||
| 5-Axis Cradle Table (Optional) |
Table Diameter | mm | Φ200 | Φ260 | Φ320 | |
| Max Swing Diameter | mm | Φ300 | Φ400 | Φ530 | ||
| Max Table Load | Kg | 80 | 100 | 200 | ||
| Rotation Angle | - | C:360/A:±120° | C:360/A:±120° | C:360/A:±120° | ||
| Rated Speed | rpm | A:120/C:150 | A:253/C:105 | A:350/C:100 | ||
| Rated Torque | N.m | A:170/C:45 | A:200/C:200 | A:60/C:60 | ||
| Spindle | Standard Spindle Type | - | HSKE40-D120-30000 | HSKE40-D120-40000 | HSKE40-D120-40000 | |
| Optional Spindle Type | - | HSKE40-D100-40000 | HSKE50-D150-24000 | HSKA63-D150-20000 | ||
| Tool Magazine | Magazine Type | - | Disk Magazine 20T | Disk Magazine 24T | Disk Magazine 24T | |
| Drive Method | X/Y/Z Axis | - | Linear Motor | Linear Motor | Linear Motor | |
| Feed Rate | Max Rapid Feed (X/Y/Z) | m/min | 60/60/60 | 60/60/60 | 48/48/48 | |
| Accuracy | Positioning Accuracy (VDI) | mm | ±0.003 | ±0.003 | ±0.003 | |
| Repeatability Accuracy (VDI) | mm | ±0.002 | ±0.002 | ±0.002 | ||
| Roundness | mm | ≤0.0012 | ≤0.0012 | ≤0.0012 | ||
| Grinding Cylindricity | mm | ≤0.002 | ≤0.002 | ≤0.002 | ||
| Surface Roughness | μm | ≤Ra 0.32 | ≤Ra 0.32 | ≤Ra 0.32 | ||
| Other | Machine Weight | Kg | 12000 | 15000 | 18000 | |
| Floor Space (L×W×H) | mm | 2500×3630 | 3300×4100 | 3900×4200 | ||
| Note: 1.Specifications subject to change without notice; 2.Machine appearance may vary, actual contract and shipment shall prevail. | ||||||
Vertical Grinder Configuration

(Germany INNA)


(Cross Roller Bearing)





Paper Filter











Typical Applications
Semiconductor Chip Packaging Micro-Holes
High-precision jig grinding technology for core applications in advanced semiconductor packaging, meeting micron-level hole positioning accuracy and surface quality requirements.