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Multi-Axis Gantries, Cartesian Robots

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PI (Physik Instrumente) LP, Motion Control, Air Bearings, Piezo Mechanics
16 Albert St.
Auburn, MA 01501
United States

Full Company Details
Phone: +1 508-832-3456
Fax: +1 508-832-0506
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PI (Physik Instrumente) LP, Motion Control, Air Bearings, Piezo Mechanics

Multi-Axis Gantries, Cartesian Robots
  • Type: Linear Stage

Gantry stages (Cartesian robots) are often used in industrial precision automation. PI’s A-341 hybrid bearing design is a novel approach achieving high precision motion in a compact space. The Gantry cross axis utilizes a frictionless air bearing guiding system, which allows for excellent velocity control, repeatability, straightness, and cleanliness. The lower dual-motor axis uses precision mechanical linear bearings for rigidity and reduced size. This combination of bearing technologies offers an overhead gantry motion platform optimized for step and scan applications in the smallest possible form factor. Absolute measuring encoders render homing procedures unnecessary and ironless linear motors eliminate cogging, providing smoother motion without vibration and better velocity control.

Optional Z-Axis
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 hybrid stages include:
• 300x300 to 500x1000mm
• XY travel
• Absolute encoders, 1nm resolution
• Z-Stage options: linear motors or ball screws
• Dynamic error mapping
• 2m/sec max velocity (cross axis)
• Cable carrier option, e-chain
• Water cooling option for high acceleration / high duty cycle applications

Applications include 3D printing, assembly, pick-and-place, alignment, inspection, and industrial automation.
Multi-Axis Gantries, Cartesian Robots
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