The OAV Granite Guide and Vacuum Preloaded Linear Dovetail Stage delivers ultra-precise linear motion where stiffness, smoothness, and stability are essential. Its granite guideways provide unmatched flatness, thermal stability, and structural rigidity, while the vacuum preloaded system ensures zero-contact, frictionless operation with consistent stiffness and repeatable motion.
The 775 x 1200 mm carriage offers a large, stable platform suitable for metrology, optical alignment, and precision assembly applications. Together, the granite guides and vacuum preload create a high-performance stage optimized for demanding environments in optics, semiconductors, and precision measurement systems.
Key Features:
Granite guideways for exceptional flatness, stiffness, and thermal stability
Vacuum preloaded for zero-contact, frictionless motion
Large 775 x 1200 mm carriage for stable, precise operation
High stiffness and load capacity for demanding applications
Title | Specification |
Size | 7.75" x 12" |
Part # | DOV7751200 |
Input Pressure | 0.27 to 0.68 MPa (40 to 100 PSI) |
Input Vacuum | 15 in Hg (50.8 kPa) |
Ideal Load | 182 kg (400 lbs) |
Z-Hold Down Force @50.8 kPa | 17 kg (38 lbs) |
Flow | 52 SCFH |
Fly Height | 5 microns |
Bearing Height | 76.2 mm (3 in) |
Bearing Weight | 12.5 kg (27.5 lbs) |
Housing Material/Finish | Aluminum/Anodized |
Porous Media Material | Carbon |
Flatness | 0.0005 mm (0.00002 in) |
Port Thread | M5 x 0.8 |


