Aerotech Releases Gantry Micro-Positioning System

Aerotech has released an X-Y Cartesian gantry micro-positioning system for high-throughput production and test micro-positioning applications such as precision micromachining and dispensing. The AGS1500 system is part of the company's ultra-high-precision AGS series that features direct-drive brushless linear motors, non-contact optical encoder feedback and linear-motion guide bearings, complete with cable management and optional granite support bases and machine frames.

The new small-footprint AGS1500 is available in four X-Y travel-range options from 200mm to 500mm and retains the dynamic performance and accuracy characteristics of Aerotech's longer-travel AGS15000 model, with nanometre-level resolution, velocity to 3m/sec and acceleration to 5g. Also suitable for applications such as machine vision inspection and automated assembly, the AGS1500 can be supplied with counterbalanced Z axes and rotary axes as complete customised motion subsystems for turnkey operation, including customer-specified fixtures, cabled services and other special requests that can include an electro-less nickel finish for electrostatic discharge (ESD) protection.

The AGS1500 X-Y gantry includes dual brushless linear servomotors and non-contacting optical encoders for the base axis. The gantry, together with Aerotech's Halar calibration option, helps to ensure an overall stage accuracy of better than +/-1.5 microns and repeatability to +/-0.5 microns for the 500mm travel version. Using Aerotech's encoder multiplier technology, resolution can be specified between 1 micron and 1 nanometre and X-Y orthogonality is within 5arc-sec. The planar stage design includes a fully preloaded linear-motion guide bearing system with wiper seals and grease fittings for long-life, low-maintenance operation for lower-axis stage loads up to 37kg and payloads on the upper axis to 3.2kg.

Aerotech's cable management system (CMS) includes connectors at both payload and opposite ends of the e-chain, with large bend radii and high-flex cables used. All electrical and pneumatics supplies can be routed through the CMS, simplifying installation and system commissioning. The AGS1500 is typically supplied complete with Aerotech's motion controls and servo amplifiers. These include the A3200 digital automation platform, the new Motionpac and the Ensemble and Soloist standalone motion controllers with integrated drives.

Various PC-based software-only controls or standalone solutions in rack- and desk-mounting options are available to suit the customer's application. All Aerotech controllers offer a choice of machine controls and motion commands that can include IEC61131-3, the Microsoft .Net Framework and the Labview programming capability with advanced software and analytical functions that are designed to optimise machine performance, increase precision and improve throughput.

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