- ±45 degrees of rotary positioning with unobstructed 360 degree view of customer load
- Stackable design with common rotation point
- Precision worm-gear drive for outstanding accuracy and repeatability
- Direct encoder option
- Horizontal or vertical mounting orientation
- High load capacity
AGC motorized mechanical goniometers are used in applications where 90 degrees of angular travel is needed with the payload at the center of rotation, or where two axes of rotation are needed about a common point. AGC goniometers are designed to be mounted to standard optical tables, as well as standard Aerotech rotary stages, to provide roll, pitch, and yaw about a common 3-axis intersection. This flexible stage series is ideal for optical alignment, payload tip/tilt, beam steering, sensor calibration, laser applications, automated manufacturing and/or testing, and multi-axis diffractometer systems.
The sizes within the AGC family are designed to be mounted on one another to form a three-axis rotary system with all three axes of rotation sharing a common intersection point. This allows compact pitch/roll/yaw systems to be created easily from a standard stage platform and without special adapter plates or mating fixtures. The drive mechanism for AGC stages is a precision gear and matched worm that are preloaded to reduce backlash. All AGC stages include optical limit switches and hard stops to define a ±45 degree range of travel.
Innovative feedback technology yields stable performance and negligible performance drift over the life of the stage. This is in stark contrast to inferior designs that must be continually adjusted to compensate for worm wear. All stage tabletops feature hardcoated aluminum, with stainless-steel Heli-Coil® inserts to prevent thread wear.
Options include flexible motor selections as well as a direct encoder mounted along the stage travel to offer outstanding repeatability and to minimize hysteresis and backlash. Vacuum-compatible versions, for use in pressures as low as 10-6 torr, are also available.
Motor and Drives
Standard AGC stage configurations feature Aerotech’s brushless servomotors. A full range of matching drives and controls are available for a complete single-source solution.
|Accuracy(1)||±12 arc sec|
|Resolution||3 arc sec|
|Bidirectional Repeatability(1)||±10 arc sec|
|Unidirectional Repeatability(1)||±5 arc sec|
|Tilt Error Motion||40 arc sec|
|Nominal Radius of Rotation||125 mm||200 mm||300 mm|
|Distance from Tabletop to Rotation Point||85 mm||160 mm||245 mm|
|Maximum Torque (Continuous)||18 N-m||24 N-m||44 N-m|
|Load Capacity(2)||Axial||20 kg||30 kg||50 kg|
|Moment||20 N-m||30 N-m||50 N-m|
|Stage Mass||5.6 kg||12.5 kg||24.3 kg|
|Material||Aluminum Body/Clear Anodize Finish|
|MTBF (Mean Time Between Failure)||5000 Hours|
- Certified with each stage. Requires direct encoder feeback with HALAR option and is tested with Aerotech controller.
- On-axis loading is listed.
- Specifications are for single-axis systems measured at the center of rotation. Performance of multi-axis systems is payload and workpoint dependent. Consult factory for multi-axis or non-standard applications.
- Load Center of Mass not to exceed bounding volume of 160 mm in diameter by 80 mm above pivot point.
|Drive System||Worm-Gear Assembly|
|Feedback||Rotary Encoder on Drive Motor and Noncontact Direct Encoder|
|Maximum Bus Voltage||320 VDC|
|Limit Switches||5 V, Normally Closed|
|Home Switch||Near Limit|
|Motor Line Count (cnts/rev)||Analog||1000||1000||1000|
|Direct Encoder Radius (mm)||116.7||195.7||294.2|
|Electrical Resolution||Motor Encoder||Analog-Fundamental
|Multi-Axis||A3200/Npaq||Ndrive CP20||Ndrive CP20||Ndrive CP20|
|Ensemble||Ensemble CP20||Ensemble CP20||Ensemble CP20|
|Single Axis||Soloist||Soloist CP20||Soloist CP20||Soloist CP20|
|Series||Effective Radius of Curvature (mm)||Travel||Limits||Motor||Motor Orientation||Encoder Options|
|-LI10 to -LI50
-LI50 to -LI90
AGC Series Gear-Driven Goniometric Cradles
|AGC-85||Gear-driven goniometric cradle with 85 mm radius of curvature|
|AGC-160||Gear-driven goniometric cradle with 160 mm radius of curvature|
|AGC-245||Gear-driven goniometric cradle with 245 mm radius of curvature|
|-LI10 to -LI50||Optional 10° to 50° of travel in 5° increments|
|-LI50 to -LI90||Optional 50° to 90° of travel in 10° increments (90° standard)|
|-NO||Normally-open limit switch|
|-NC||Normally-closed limit switch|
|-BM||Brushless servomotor with connectors and encoder; AGC-85 (BM75-D25-E2500H), AGC-160 (BM130-D25-E2500H), and AGC-245 (BM200-D25-E5000H)|
|-BM-BK||Brushless servomotor with connectors, digital square wave encoder and brake|
|-BM-AS||Brushless servomotor with connectors and analog amplified sine encoder; AGC-85 (BM75-D25-E1000ASH), AGC-160 (BM130-D25-E1000ASH), and AGC-245 (BM200-D25-E1000ASH)|
|-BM-AS-BK||Brushless servomotor with connectors, analog amplified sine encoder and brake|
|-2||Bottom cable exit|
|-3||Forward side cable exit (standard orientation)|
|-4||Top cable exit|
|-5||Back side cable exit|
|-AS||Direct encoder option, sine wave output|
|-X50||Direct encoder option, square wave output|
Note: Using AGC stages with dual feedback loops will necessitate that the drive motor is outfitted with an amplified sine encoder and appropriate encoder interpolation (MXH, MXU, or MXR).