RST-DE Series

High precision motorized rotary stages with direct encoders

Photo of the RST120AK-DE50T10A

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
Microstep Size (Default Resolution) 0.00015625° (2.727 µrad)
Built-in Controller No
Recommended Controller MCC (48 V) Recommended
AutoDetect Yes
Range +/- 360°
Accuracy (unidirectional) 0.01° (0.1745 mrad)
Repeatability < 0.005° (< 0.087 mrad)
Backlash < 0.005° (< 0.087 mrad)
Maximum Speed 24°/s (4 rpm)
Encoder Count Size 0.00005556°/count (0.2 arcseconds/count)
Minimum Speed 0.000095°/s (1.658 µrad/s)
Speed Resolution 0.000095°/s (1.658 µrad/s)
Encoder Resolution 1620000 CPR (6480000 states/rev)
Encoder Type Direct Reading Optical Encoder
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)
Stage Top Dimension 120 mm (4.724")
Radial Error Motion +/- 3 µm (+/- 0.000118")
Axial Error Motion < 3 µm (< 0.000118")
Tilt Error Motion +/- 0.0014° (+/- 24.43 µrad)
Bearing Plane Offset 27.11 mm (1.067")
Stiffness (Tilt) 870 N⋅m/° (20.1 µrad/N⋅m)
Angular Motion Per Motor Rev
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
Default Resolution 1/64 of a step
Maximum Angular Momentum 0.4 kg⋅m2/s
Mechanical Drive System Precision Worm Gear
Limit or Home Sensing Magnetic home sensor
Operating Temperature Range 0-50 °C
CE Compliant Yes
Vacuum Compatible No
Weight 2.46 kg (5.423 lb)

* 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

Photo of RST120AK-DE50T3_torque_speed_web.gif