RST Series

High load motorized rotation stages

Series Specifications

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Built-in Controller No
Recommended Controller MCC (48 V) Recommended
AutoDetect Yes
Range +/- 360°
Backlash < 0.05° (< 0.873 mrad)
Encoder Type No
Motor Steps Per Rev 200
Motor Type Stepper (2 phase)
Motor Connection D-sub 15
Default Resolution 1/64 of a step
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

Part Specifications Comparison

Part NumberMicrostep Size (Default Resolution)Accuracy (unidirectional)RepeatabilityMaximum SpeedMinimum SpeedSpeed ResolutionMaximum TorqueMaximum Continuous TorqueMaximum Centered LoadMaximum Moment (Tilt)Stage Top DimensionRadial Error MotionAxial Error MotionTilt Error MotionBearing Plane OffsetStiffness (Tilt)Angular Motion Per Motor RevMotor Rated CurrentMotor Winding ResistanceMotor Winding InductanceMaximum Angular MomentumMotor Frame SizeGuide TypeGear RatioMounting InterfaceWeight
RST120AK-T3A0.00015625° (2.727 µrad)0.16° (2.792 mrad)< 0.005° (< 0.087 mrad)24°/s (4 rpm)0.000095°/s (1.658 µrad/s)0.000095°/s (1.658 µrad/s)10 N⋅m (7.38 lb⋅ft)10 N⋅m (7.38 lb⋅ft)500 N (112.1 lb)20 N⋅m (14.76 lb⋅ft)120 mm (4.724")+/- 3 µm (+/- 0.000118")< 3 µm (< 0.000118")+/- 0.0014° (+/- 24.43 µrad)27.1 mm (1.067")870 N⋅m/° (20.1 µrad/N⋅m)1500 mA/phase2.4 ohms/phase6.6 mH/phase0.4 kg⋅m2/s17Preloaded Ball Bearing180:1Kinematic with M2.5 and M6 threaded holes2.4 kg (5.291 lb)
RST240B-T3A0.00027574° (4.812 µrad)0.075° (1.30875 mrad)< 0.0015° (< 0.026 mrad)60°/s (10 rpm)0.000168°/s (2.932 µrad/s)0.000168°/s (2.932 µrad/s)70 N⋅m (51.66 lb⋅ft)45 N⋅m (33.21 lb⋅ft)3000 N (672.8 lb)200 N⋅m (147.6 lb⋅ft)240 mm (9.449")+/- 2.5 µm (+/- 0.000098")< 4 µm (< 0.000157")+/- 0.003° (+/- 52.36 µrad)30.75 mm (1.211")8000 N⋅m/° (2.2 µrad/N⋅m)3.5294°3000 mA/phase0.53 ohms/phase2 mH/phase1.6 kg⋅m2/s23Crossed-Roller Bearing102:1M6 threaded holes and M8 mounting holes14.5 kg (31.967 lb)

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 the RST120AK-T3A_TORQUE_SPEED_WEB
Torque Speed Performance Chart of the RST240B-T3A