RST-DE Series
High precision motorized rotary stages with direct encoders
Image is representative of the RST-DE Series and may not match the selected variant.
RST120AK-DE50T10A
360 Degree Rotation | 120 mm Diameter | Fine Resolution | High Torque
Starting Price: $5,918 *
Standard Lead Time: 1-5 Days
RST120AK-DE50T10A Specifications
Download Datasheet| Built-in Controller |  |
| Recommended Controller | MCC (48 V) Recommended |
| AutoDetect |  |
| Range | +/- 360° |
| Weight | 2.46 kg (5.423 lb) |
| Accuracy (unidirectional) | 0.01° (0.1745 mrad) |
| Repeatability | < 0.005° (< 0.087 mrad) |
| Backlash | < 0.005° (< 0.087 mrad) |
| Radial Error Motion | +/- 3 µm (+/- 0.000118") |
| Axial Error Motion | < 3 µm (< 0.000118") |
| Tilt Error Motion | +/- 0.0014° (+/- 24.43 µrad) |
| Microstep Size (Default Resolution) | 0.00015625° (2.727 µrad) |
| Default Resolution | 1/64 of a step |
| Maximum Torque | 10 N⋅m (7.38 lb⋅ft) |
| Maximum Continuous Torque | 10 N⋅m (7.38 lb⋅ft) |
| Maximum Centered Load | 500 N (112.1 lb) |
| Maximum Moment (Tilt) | 20 N⋅m (14.76 lb⋅ft) |
| Stiffness (Tilt) | 870 N⋅m/° (20.1 µrad/N⋅m) |
| Maximum Speed | 24°/s (4 rpm) |
| Minimum Speed | 0.000095°/s (1.658 µrad/s) |
| Speed Resolution | 0.000095°/s (1.658 µrad/s) |
| Maximum Angular Momentum | 0.4 kg⋅m2/s |
| Encoder Type | Direct Reading Optical Encoder |
| Encoder Count Size | 0.00005556°/count (0.2 arcseconds/count) |
| Encoder Resolution | 1620000 CPR (6480000 states/rev) |
| Limit or Home Sensing | Magnetic home sensor |
| Angular Motion Per Motor Rev | 2° |
| Motor Steps Per Rev | 200 |
| Motor Type | Stepper (2 phase) |
| Motor Rated Current | 1500 mA/phase |
| Motor Winding Resistance | 2.4 ohms/phase |
| Motor Winding Inductance | 6.6 mH/phase |
| Motor Connection | D-sub 26 |
| Stage Top Dimension | 120 mm (4.724") |
| Bearing Plane Offset | 27.11 mm (1.067") |
| Mechanical Drive System | Precision Worm Gear |
* 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
Thrust or torque is a function of speed. The values given above are maximums. These values cannot both be achieved simultaneously (i.e. at maximum speed, the unit will not produce maximum thrust).
Torque Speed Performance
