A-351 MGS Compact Mechanical Gantry System

March 01,2019
A-351 MGS Compact Mechanical Gantry System

PI adds to its family of precision automation subsystems with the A-351 MGS, a compact mechanical gantry system engineered to deliver maximum throughput for applications that require controlled precise overhead motion. The gantry is driven by linear motors and each axis is equipped with preloaded linear bearings. Applications include high-precision 3D printers, assembly, pick-and-place, alignment, inspection and other industrial automation applications.

The A-351 MGS gantry system is designed for high load capacity of 20kg, twice the amount of its A-341 air-bearing-based sibling. Absolute-measuring linear encoders with nanometer resolution are optional, rendering homing procedures unnecessary and ironless linear motors eliminate cogging, providing smoother motion without vibration and better velocity control.  

An optional vertical axis (Z-stage) with either ballscrew drive or linear motor and pneumatic counterbalance can be integrated with the gantry cross axis.

Features of the ball bearings stages include:

  • 300mmx300mm to 500mmx1000mm XY travel
  • Absolute encoders, 1nm resolution
  • Z-Stage options: linear motors or ballscrews
  • Dynamic error mapping
  • 2m/sec max velocity (cross axis)
  • Cable carrier option, e-chain
  • Water cooling option for high acceleration/high duty cycle applications

The MGS Gantry can be run with industry-leading ACS motion controllers and drives that offer superior servo performance, advanced control algorithms to improve dynamic performance and error compensation specifically for gantries, and a wide suite of software development tools.

Related Glossary Terms

  • linear motor

    linear motor

    Functionally the same as a rotary motor in a machine tool, a linear motor can be thought of as a standard permanent-magnet, rotary-style motor slit axially to the center and then peeled back and laid flat. The major advantage of using a linear motor to drive the axis motion is that it eliminates the inefficiency and mechanical variance caused by the ballscrew assembly system used in most CNC machines.