PI A-688 Air Bearing Rotary Stage
PI A-688 is a direct-drive air-bearing rotary-stage platform with a large aperture and high-resolution position feedback. Stage geometry, controller, air services and actual payload must be specified together before assessing the installed metrology or positioning result.
Key Specifications
Reviewed stage | A-688 air-bearing rotary platform |
Drive architecture | Direct-drive torque motor with closed-loop position feedback |
Mechanical feature | Large through aperture; exact drawing governs dimensions |
Feedback scope | High-resolution feedback describes sensing, not complete-stage accuracy |
Required services | Air supply, controller and installation must match exact documentation |
Performance selection | Payload, geometric error, speed and settling require configuration-level assessment |
Applications and Industries
Semiconductor and electronics production equipment; Laser processing
Electronics and semiconductors; Manufacturing
Review Summary
Evaluate A-688 for an identified precision-rotation task that justifies its air-bearing and aperture arrangement. Confirm current configuration/support, service requirements and measured geometric performance; encoder resolution is not the same quantity as angular accuracy or process capability.
Price and Configuration
Request a quote for the selected configuration,quantity and delivery schedule. Confirm the exact model,options,integration scope and support terms.
