ART50/100 Mechanical-Bearing Gear-Drive Rotary Stage
Description
Design Features
- Low profile and small footprint
- Ultra-fine resolution
- Integral brushless servomotor or microstepping motor
- Optional aperture versions
- Manual adjust knob with graduated tabletop
- Available with vacuum preparation
The ART50 and ART100 rotary stages offer superior positioning performance in very compact, low-profile units. They are companion stages to the ATS50 series linear positioning stages and are ideal for space-critical applications such as optical trains and vacuum operation that require automated motion.
Construction Features
The ART50 and ART100 are fabricated from a special aluminum alloy. This material offers significant weight savings in multi-axis arrangements and other weight critical applications, while providing high structural stiffness and long-term stability.
Each stage incorporates high quality pre-loaded angular contact bearings that provide excellent runout, wobble and loading characteristics.
The drive mechanism is a precision anti-backlash worm with reduction gearing. To protect the stage a slip clutch is included that will prevent damage in the event that excessive torque is applied to the table.
The ART50 and ART100 with integral microstepping motor include an accurate home reference. A graduated knob on the rear of the microstepping motor is ideal for convenient manual positioning and includes a reference dial as well as a graduated tabletop. The optional integral brushless servomotor has a 500-line square-wave rotary encoder.
Options and Accessories
Both stages are available with optional vacuum preparation to 10-6 torr. The ART100 has an option for a large throughhole aperture. The Z5S and Z5R right angle brackets are available for applications requiring the tabletop to be mounted in a vertical orientation. All stages are available with both metric (standard) and English bolt hole and mounting patterns.
Aerotech manufactures a wide range of sophisticated, yet easy-to-use, motion controllers capable of driving the ART50/ART100.
Specifications
Specifications
| Model | ART50 | ART100 | |
|---|---|---|---|
| Travel | 360° Continuous | ||
| Drive System | Precision Worm Gear | ||
| Motor Type | Integral Stepping or Brushless Servomotor | ||
| Bus Voltage | Microstepping Motor | 40 VDC | |
| Servomotor | Up to 48 VDC | ||
| Continuous Current, Stall | Apk (Microstepping Motor) | 1.2 A | |
| Arms (Microstepping Motor) | 0.85 A | ||
| Apk (Servomotor) | 0.5 A | ||
| Arms (Servomotor) | 0.35 A | ||
| Feedback (Servomotor only) | Noncontact Rotary Encoder (500-line) | ||
| Accuracy(1) | 0.06° | 0.05° | |
| Unidirectional Repeatability(1) | 12.6 arc sec | 7.6 arc sec | |
| Axial Error Motion | 3.0 µm | 3.0 µm | |
| Radial Error Motion | 10.0 µm | 12 µm | |
| Tilt Error Motion | ±242.5 µrad (±50 arc sec) | ||
| Resolution | Microstepping Motor | 8.7 µrad (1.8 arc sec) @ 4000 steps per rev motor resolution | |
| Servomotor | 17.5 µrad (3.6 arc sec) @ 2000 steps per rev motor resolution | ||
| Home Precision Repeatability | 17.5 µrad (3.6 arc sec) | ||
| Moment Load | 2 N-m | ||
| Axial Load | 5 kg | 10 kg | |
| Radial Load | 2.3 kg | 5.0 kg | |
| Rated Speed | 5 rpm | ||
| Mass | 0.7 kg | 1.4 kg | |
| Finish | Clear Anodize; Black Anodize Motor Cover | ||
- Measured 50 mm above tabletop.
-
Art50/100 Cantilevered Load Graphs 
Dimensions
-
ART50 
-
ART100 
-
Z5S Bracket 
-
Z5R Bracket 
Ordering Information
Ordering Example
| ART50 | /VAC3 | -M | -2 |
Ordering Options
| Series | Stage Construction Options | Mounting and Grid Pattern | Motor |
|---|---|---|---|
| 50 100 50S 100S |
/VAC3 /VAC6 |
M U MA (ART100/ART100S only) UA (ART100/ART100S only) |
-2 -5 |
ART50 & ART100 Series Rotary Stage
| Option | Description |
|---|---|
| ART50 | 50 mm diameter rotary stage with stepping motor and 0.001 degree accurate home marker |
| ART100 | 100 mm diameter rotary stage with stepping motor and 0.001 degree accurate home marker |
| ART50S | 50 mm diameter rotary stage with brushless servomotor |
| ART100S | 100 mm diameter rotary stage with brushless servomotor |
Stage Construction Options
| Option | Description |
|---|---|
| /VAC3 | Vacuum preparation of stage to 10-3 torr |
| /VAC6 | Vacuum preparation of stage to 10-6 torr |
Mounting and Grid Pattern
| Option | Description |
|---|---|
| -M | Tabletop with metric-dimension mounting pattern and holes |
| -U | Tabletop with English-dimension mounting pattern and holes |
| -MA | Tabletop with aperture and metric-dimension mounting pattern and holes (ART100/ART100S only) |
| -UA | Tabletop with aperture and English-dimension mounting pattern and holes (ART100/ART100S only) |
Motor
| Option | Description |
|---|---|
| -2 | Stepping motor with 0.9 m integral cable and home marker (wired unipolar – F0.85); requires motor-to-controller cable |
| -5 | Brushless servomotor with 0.9 m integral cable, connector and line encoder; requires cable |
Accessories (to be ordered as separate line item)
| Option | Description |
|---|---|
| ALIGNMENT-NPA | Non-precision assembly |
| AG5 | Adapter plate for ART50 |
| Z5S | Right angle L-bracket for ART50 |
| Z5R | Right angle L-bracket for ART100 |