- High dynamic, precision performance
- Large aperture for product feed-through
- Low inertia shaft for maximum acceleration
- Package design optimized to minimize stage weight
- Direct-drive brushless servomotor; direct-coupled rotary encoder
- Precision angular contact bearings
Aerotech's ASR1000 series direct-drive rotary stage was designed to meet the demanding needs of high-performance precision machining. The low-inertia motor and high-accuracy encoder make it the ideal combination of speed and accuracy.
To maximize positioning performance, the ASR1000 series utilizes Aerotech's brushless series of motors. Optimized for production applications, the brushless direct-drive motor of the ASR1000 has the advantage of no brushes to wear and no gear trains to maintain. The low-inertia motor enables the ASR1000 to reach speeds and accelerations that were previously unachievable with earlier generation direct-drive devices or worm-driven stages. Designed for applications requiring frequent direction changes, the ASR1000 offers low inertia and zero backlash in a compact package.
The design of the ASR1000 series direct-drive rotary stage was optimized to minimize stage weight. The resulting product – with a net overall weight under 5 kg – is significantly lighter than previous offerings. When used to replace an existing rotary stage in a multiple-axis system, an increase in performance can be expected for all positioning stages carrying the rotary stage.
To maximize position and contour accuracy, the ASR1000 utilizes a high resolution shaft-mounted rotary encoder. When coupled with Aerotech's MXH series multipliers, final resolutions can be as fine as 0.63 arc sec. The absence of gear trains and mechanical couplings means no position errors caused by hysteresis, windup or backlash. Absolute repeatabilities of ±3 arc seconds are attainable.
The result is a production-worthy tool that offers higher throughput, lower maintenance, superior final parts and an outstanding return on investment.
A large aperture aids high-volume production by providing the means for continuous product feedthrough. For applications requiring a collet, several shaft options are available to easily interface to existing machine designs.
Aerotech manufactures a wide range of matching drives and controls to provide a fully integrated and optimized solution. Aerotech's high-power brushless amplifiers are available in several convenient packages and the controller options range from stand-alone indexers to sophisticated PC-bus-based controllers with unmatched contouring routines and system tools.
ASR1000 Series Specifications
|Shaft Diameter||19 mm|
|Maximum Aperture Diameter||14 mm ±0.5 mm|
|Drive System||Direct-Drive Brushless Servomotor|
|Feedback||8192 cycles/rev; analog output encoder (standard)|
|Maximum Rotary Speed(1)||2000 rpm|
|Accuracy(1)||±72.8 µrad (±15 arc sec)|
|Repeatability(1)||±14.6 µrad (±3 arc sec)|
|Inertia||9.0 x 10-5 kg·m2|
|Nominal Stage Weight||4.4 kg|
|Maximum Load||Axial||3.0 kg|
|Continuous Current, Stall||Apk||10|
|Bus Voltage||Up to 320 VDC|
|Axis Error Motion||Axial||2.5 µm|
|Material||Stage Shaft||Stainless Steel|
|Finish||Stage Shaft||Stainless Steel|
|Stage Body||Black Anodize|
- Maximum speed based on stage capability; maximum application velocity may be limited by system data rate and system resolution.
|Series||Drive Motor||Connector||Position Transducer|
ASR Series Direct-Drive Rotary Stage
|ASR1000||Direct-drive rotary stage|
|-10||Direct-drive brushless motor|
|-HPD||One high-power D and one 25-pin D-style connector option|
|-25D||Two 25-pin D-style connector option|
Note: -25D option required for direct connection to CMS on some Aerotech stages. Consult Aerotech for applicability.
|-RE8192AS||Incremental encoder, 8192 ppr|
|-MP||Mounting plate with 75 mm square hole pattern|