Gantry stage for cell phone PCB remounting is to replace the bad PCB with good one in a large PCB panel. This gantry system utilizes dual axis synchronization control together with payload position of x axis feed forward to achieve both high-accuracy and high-speed performance.
| ITEM | X axis (up) | Yaxis(down) | Z axis | |
| Stroke | Effective (mm) | 700 | 1500 | |
| Maximal (mm) | 750 | 1550 | ||
| Resolution (um) | 0.5 | 0.5 | ||
| Straightness (um) | <3 | <3 | ||
| Flatness (um) | <9 | <9 | ||
| XYZ squareness (um) | <5 | |||
| Repeatability (um) | +/- 1 | +/- 1 | ||
| Accuracy (um)
(with laser calibration) |
< 5 | < 5 | ||
| Maximal speed (m/sec) | 2.5 | 2.5 | ||
| Maximal Acc. (G) | 2.5 | 2.5 | ||
- Dual linear motors, dual linear scales and dual drivers are employed to realize high speed/acceleration gantry system.
- X axis uses composite material to reduce weight and increase rigidity.
- M-shape bottom base made of cast iron is used to absorb vibration.
- Ultra-low cogging force linear motors are employed.