Rotary Tables

Rotary Tables — High‑Precision Rotary Motion Systems for Industrial Automation

IntelliDrives® rotary tables provide ultra‑precise rotary positioning for advanced automation in semiconductor manufacturing, photonics, aerospace, medical devices, metrology, robotics, and industrial inspection systems. Engineered for high accuracy, high stiffness, zero‑backlash performance, and arc‑second‑level resolution, these rotary stages support demanding applications requiring smooth rotation, high torque, and repeatable indexing.

IntelliDrives manufactures a complete portfolio of rotary motion technologies:

• Direct‑drive rotary tables (DDR)

• Worm‑gear rotary actuators

• Belt‑driven rotary stages

• Large‑aperture rotary tables

• Air‑bearing rotary platforms

• Low‑profile rotary stages

• Multi‑axis rotary systems

• IntelliGent™ integrated rotary actuators

Each system is available with multiple aperture sizes, table diameters, encoder resolutions, and motor/drive options to match the requirements of precision automation.

Direct‑Drive Rotary Tables (DDR)

Zero‑backlash, high‑torque, arc‑second precision

IntelliDrives® direct‑drive rotary tables use frameless torque motors and high‑resolution absolute ring encoders to deliver:

• Zero mechanical backlash

• Cog‑free, ultra‑smooth rotation

• High dynamic torque and fast acceleration

• Sub‑arc‑second positioning accuracy

• Maintenance‑free operation

• High stiffness for demanding industrial environments

Ideal applications: Semiconductor wafer handling, laser machining, optical alignment, precision metrology, high‑speed indexing, robotic positioning, and automated inspection.

Worm‑Gear Rotary Actuators

High torque density and excellent holding capability

These rotary actuators feature:

• Low backlash worm‑gear drive

• High load capacity

• No back‑driving

• Stepper or servo motor compatibility

• Robust mechanical stiffness

Used in: Packaging automation, assembly systems, material handling, pick‑and‑place robotics, and general industrial automation.

Belt‑Driven Rotary Stages

High‑speed, low‑profile rotation with large apertures

IntelliDrives® belt‑driven rotary tables offer:

• High rotational speeds

• Smooth, quiet operation

• Large through‑hole apertures

• Low‑profile mechanical design

• Cost‑effective performance

Applications: Inspection systems, scanning systems, indexing tables, and large‑aperture automation.

Large‑Aperture Rotary Tables

Central openings up to 490 mm for optics, cabling, and beam paths

Large‑aperture rotary tables support:

• Direct‑drive, worm‑gear, or belt‑drive configurations

• High stiffness and load capacity

• Precision cross‑roller bearings

• Encoder resolutions down to 1 arc‑second

Ideal for: Optical systems, photonics, CT scanning, metrology, semiconductor tools, and robotic integration.

Air‑Bearing Rotary Tables

Frictionless, ultra‑smooth rotation for nanoradian‑level precision

Air‑bearing rotary platforms provide:

• Zero mechanical contact

• No wear or particle generation

• Extreme rotational smoothness

• High stiffness and load capacity

• Cleanroom‑ready operation

Used in: Photonics, semiconductor lithography, precision optics, interferometry, and ultra‑high‑accuracy metrology.

Low‑Profile Rotary Stages

Compact rotary motion for tight‑space automation

Features include:

• Heights as low as 22–42 mm

• Lightweight construction

• High accuracy in compact form

Applications: Robotics, compact automation systems, portable inspection equipment, and multi‑axis assemblies.

Multi‑Axis Rotary Systems

2‑axis and 3‑axis coordinated rotary motion

IntelliDrives® integrates rotary stages into multi‑axis assemblies with:

• Coordinated motion control

• Absolute encoder feedback

• High‑speed indexing

• Custom mechanical integration

• Servo/stepper compatibility

Applications: Optical alignment, robotic end‑effectors, semiconductor inspection, precision assembly, and 3D part manipulation.

IntelliGent™ Rotary Actuators

Fully integrated smart rotary actuators

These intelligent actuators include:

• Motor, encoder, amplifier, and controller

• USB, Ethernet, RS232, RS485 communication

• Digital and analog I/O

• Programmable motion profiles

Ideal for OEMs requiring compact, plug‑and‑play rotary automation.

How to Choose a Rotary Table

1. Accuracy & Resolution Arc‑minute vs. arc‑second; absolute vs. incremental encoders.

2. Torque & Speed Requirements

   • High torque → Direct‑drive

   • High speed → Belt‑drive

   • High holding torque → Worm‑gear

3. Aperture Size For optics, cabling, or beam paths, choose large‑aperture models.

4. Environment

   • Cleanroom → Air‑bearing

   • Harsh industrial → IP‑rated

5. Load Capacity & Stiffness Cross‑roller bearings for stiffness; air bearings for ultra‑smooth rotation.

6. Integration Servo/stepper compatibility, BiSS‑C/SSI/Fanuc encoder interfaces, multi‑axis synchronization.

Comparison Table

Why Engineers Choose IntelliDrives®

• Ultra‑high precision

• Zero‑backlash direct‑drive options

• Large‑aperture and low‑profile designs

• Air‑bearing and cleanroom‑ready models

• IP‑rated solutions for harsh environments

• Custom multi‑axis configurations

• Industry‑leading encoder resolutions

• Seamless servo/stepper integration

IntelliDrives® rotary tables are engineered for mission‑critical automation, where accuracy, reliability, and performance cannot be compromised.