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Rotary Motion Systems

Allient | ALIO TRUE NANO® Rotary Motion Systems

As part of Allient, ALIO delivers a complete portfolio of precision rotary motion systems engineered for advanced manufacturing and research applications that demand nanometer-level accuracy, ultra-high repeatability, and long-term reliability. ALIO’s TRUE NANO® rotary stages set the benchmark for ultra-precision rotary motion control, outperforming traditional rotary stages that struggle with runout, wobble, and stability under dynamic loads.

Designed and manufactured in ALIO’s vertically integrated facility—with 100% part verification—these rotary stages offer exceptional stiffness, minimal radial/axial error, and superior angular precision. Available in a wide range of form factors, including crossed-roller bearing rotary stages, angular-contact designs, air-bearing rotary platforms, large-aperture/open-center stages, and two-axis gimbal assemblies, ALIO provides a solution for nearly any precision application.

Each system can be custom-engineered to support unique torque, aperture, load, or environmental requirements—including vacuum options—making them ideal for semiconductor tools, metrology systems, photonics equipment, precision inspection, and other demanding applications.

Two-Axis Gimbal Rotary Systems

As part of Allient, ALIO delivers high-performance two-axis gimbal rotary systems engineered for ultra-precise angular positioning, high torque, and excellent dynamic responsiveness. These TRUE NANO®-class rotary systems offer wide travel ranges and stiff, stable performance...

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360° Angular Contact Bearing Rotary Stages

Under the Allient umbrella, ALIO’s 360° rotary stages with angular-contact bearings deliver smooth, continuous, high-precision rotation in compact, low-profile formats. Driven by high-performance torque motors, these stages support full-circle rotation with exceptional accuracy, making them...

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Crossed-Roller Bearing Rotary Stages

As part of Allient, ALIO provides crossed-roller bearing rotary stages engineered for extreme stiffness, high acceleration, and nanometer-level rotary precision. These stages deliver industry-leading repeatability (±0.2 arc-sec) with radial and axial runout as low as...

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Open-Center Rotary Stages

ALIO, an Allient brand, engineers open-center rotary stages featuring tangential linear direct drives and precision angular-contact bearings for high-accuracy rotation with large apertures. These systems offer ±7.5° travel, ideal for applications requiring through-axis access and...

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Rotational Air Bearing Stages

As part of Allient, ALIO’s rotational air bearing stages deliver frictionless, wear-free rotary motion for the most demanding high-precision environments. With near-perfect 360° motion and minimal wobble, eccentricity, or runout, these stages support both continuous...

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Competitive Advantages of ALIO Rotary Motion Systems:

  • TRUE NANO® accuracy and ultra-smooth motion performance
  • Industry-leading stiffness, radial/axial runout, and minimal wobble
  • Vertically integrated manufacturing ensures tighter quality control
  • Outperforms typical precision rotary stages on the market in both accuracy and lifecycle reliability

With Allient’s precision brand, ALIO, customers benefit from a proven, ultra-precision rotary motion platform engineered to deliver superior performance in the most demanding manufacturing environments.