RST-AE Series
High precision, high load motorized rotary stages with direct encoders

Image is representative of the RST-AE Series and may not match the selected variant.
RST240B-AE56T10A
360 Degree Rotation | 240 mm Diameter | Fine Resolution | High Torque | Large Aperture
Starting Price: $20,730 *
Standard Lead Time: 7-10 Days
RST240B-AE56T10A Specifications
Download Datasheet| Built-in Controller | |
| Recommended Controller | MCC (48 V) Recommended |
| AutoDetect | |
| Range | +/- 360° |
| LED Indicators | |
| Weight | 15.6 kg (34.392 lb) |
| Accuracy (unidirectional) | 0.008° (0.1396 mrad) |
| Repeatability | < 0.0015° (< 0.026 mrad) |
| Backlash | < 0.005° (< 0.087 mrad) |
| Radial Error Motion | +/- 2.5 µm (+/- 0.000098") |
| Axial Error Motion | < 4 µm (< 0.000157") |
| Tilt Error Motion | +/- 0.003° (+/- 52.36 µrad) |
| Microstep Size (Default Resolution) | 0.00027574° (4.812 µrad) |
| Default Resolution | 1/64 of a step |
| Maximum Torque | 70 N⋅m (51.66 lb⋅ft) |
| Maximum Continuous Torque | 45 N⋅m (33.21 lb⋅ft) |
| Maximum Centered Load | 3000 N (672.8 lb) |
| Maximum Moment (Tilt) | 200 N⋅m (147.6 lb⋅ft) |
| Stiffness (Tilt) | 8000 N⋅m/° (2.2 µrad/N⋅m) |
| Maximum Speed | 60°/s (10 rpm) |
| Minimum Speed | 0.000168°/s (2.932 µrad/s) |
| Speed Resolution | 0.000168°/s (2.932 µrad/s) |
| Maximum Angular Momentum | 1.6 kg⋅m2/s |
| Encoder Type | Direct reading optical encoder |
| Encoder Count Size | 0.00003814°/count (0.137 arcseconds/count) |
| Encoder Resolution | 23600 CPR (94400 states/rev) |
| Limit or Home Sensing | Optical Index Mark |
| Angular Motion Per Motor Rev | 3.5294° |
| Motor Steps Per Rev | 200 |
| Motor Type | Stepper (2 phase) |
| Motor Rated Current | 3000 mA/phase |
| Motor Winding Resistance | 0.53 ohms/phase |
| Motor Winding Inductance | 2 mH/phase |
| Motor Connection | D-sub 26 |
| Motor Frame Size | 23 |
| Gear Ratio | 102:1 |
| Stage Top Dimension | 240 mm (9.449") |
| Bearing Plane Offset | 30.75 mm (1.211") |
| Guide Type | Crossed-Roller Bearing |
| Mechanical Drive System | Precision Worm Gear |
| Mounting Interface | M6 threaded holes and M8 mounting holes |
* These are our direct prices in USD to customers in North America. If you are in Canada, click the Canadian flag icon at the top right of the page to see CAD prices. If you are in a country outside North America where we have an exclusive distributor, please check with the distributor for pricing. Distributor prices might be slightly higher to factor in shipping and import fees. Click here for a list of Zaber's Distributors.
Specification Charts & Notes
Torque Speed Performance
